WO2025005197A1 - Dispositif de vibration - Google Patents

Dispositif de vibration Download PDF

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Publication number
WO2025005197A1
WO2025005197A1 PCT/JP2024/023410 JP2024023410W WO2025005197A1 WO 2025005197 A1 WO2025005197 A1 WO 2025005197A1 JP 2024023410 W JP2024023410 W JP 2024023410W WO 2025005197 A1 WO2025005197 A1 WO 2025005197A1
Authority
WO
WIPO (PCT)
Prior art keywords
vibration
user
cushion
audio
audio signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2024/023410
Other languages
English (en)
Japanese (ja)
Inventor
雄太 種村
明香里 木村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foster Electric Co Ltd
Original Assignee
Foster Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foster Electric Co Ltd filed Critical Foster Electric Co Ltd
Priority to JP2025530202A priority Critical patent/JPWO2025005197A1/ja
Publication of WO2025005197A1 publication Critical patent/WO2025005197A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems

Definitions

  • This disclosure relates to a vibration device.
  • Japanese Patent Publication No. 55-022755 discloses an acoustic vibration element in which a speaker is embedded together with a vibration element in a single case.
  • Japanese Utility Model Publication No. 01-006622 discloses an audio playback device that obtains mechanical vibration output from a vibration unit at the same time as playback from a speaker.
  • Japanese Utility Model Publication No. 62-080488 discloses a bodily sensation audio device that is used in combination with a main audio device that reproduces electric audio signals.
  • JP 55-022755 A, Jpn Pub. No. 01-006622 B, and Jpn Pub. No. 62-080488 B still have room for improvement in terms of creating a sense of realism and improving the user experience. Therefore, the present disclosure provides a vibration device that can create a greater sense of realism when enjoying video or audio, thereby improving the user experience.
  • a first aspect of the technology disclosed herein is a vibration device that includes a vibration unit capable of generating vibrations in response to an audio signal, the audio signal having audio directionality, the vibration unit capable of generating vibrations in response to the audio directionality, and the vibrations generated by the vibration unit being applied to a user.
  • the second aspect of the technology disclosed herein is a vibration device according to the first aspect, in which the directionality of the sound is formed by a plurality of channels through which the sound signal is output, the vibration unit is divided into a plurality of vibration units, and each vibration unit vibrates according to the directionality of the sound.
  • a third aspect of the technology disclosed herein is a vibration device according to the first aspect, in which the directionality of the sound has two directions, one from the left side and one from the right side of the user, the vibration unit is divided into two, one on the left side and one on the right side of the user, and the vibration unit on the left side vibrates in response to sound from the left side, and the vibration unit on the right side vibrates in response to sound from the right side.
  • the fourth aspect of the technology disclosed herein is a vibration device according to the first aspect, in which the vibration unit is divided into a plurality of parts, and each part of the vibration unit includes a vibration source that vibrates in response to the audio signal, and a transmission unit to which the vibration source is attached.
  • the fifth aspect of the technology disclosed herein is a vibration device according to the fourth aspect, in which the transmission section is divided and arranged in each of the divided vibration sections.
  • the sixth aspect of the technology disclosed herein is a vibration device according to the fourth aspect, in which a signal that matches the resonant frequency of the vibration device is input to the vibration source.
  • the seventh aspect of the technology disclosed herein is a vibration device according to the sixth aspect, in which the resonant frequencies include a primary resonant frequency, a secondary resonant frequency, and a tertiary resonant frequency.
  • the eighth aspect of the technology disclosed herein is a vibration device according to the sixth aspect, in which the resonant frequency is 100 Hz or less.
  • a ninth aspect of the technology disclosed herein is the vibration device according to the fourth aspect, in which the vibration device is a vibration cushion capable of supporting the buttocks of the user, and the transmission unit is provided in a position facing the ischial bones of the buttocks of the user when the vibration cushion is supporting the buttocks of the user.
  • the present disclosure provides a vibration device and an audio system that can create a greater sense of realism when watching video or audio, improving the user experience.
  • FIG. 1 is a block diagram showing an example of a hardware configuration of an audio system according to a first embodiment.
  • FIG. 1 is an external perspective view showing an example of the configuration of a vibration cushion which is a vibration device.
  • 3 is a cross-sectional view taken along the line BB in FIG. 2, showing an example of the configuration of the vibration cushion.
  • FIG. 1 is a conceptual diagram showing an example of an embodiment in which an audio system is used.
  • 13 is a top view showing an example of an arrangement of a vibration member according to a first modified example of the first embodiment.
  • FIG. FIG. 11 is an external perspective view showing an example of the configuration of a vibration cushion according to a second embodiment.
  • 1 is a cross-sectional view showing an example of the configuration of a vibration cushion.
  • FIG. 1 is an external perspective view showing an example of the configuration of a vibration cushion which is a vibration device.
  • 3 is a cross-sectional view taken along the line BB in FIG. 2, showing an example of the configuration of the vibration cushion
  • FIG. 11 is an external perspective view showing an example of the configuration of a vibration cushion according to a third embodiment.
  • FIG. 13 is an external perspective view showing a configuration example of a vibrating sheet and a cushion according to a fourth embodiment.
  • 10 is a cross-sectional view taken along the line BB in FIG. 9, showing an example of the configuration of a vibrating sheet and a cushion.
  • FIG. 13 is an external perspective view showing a configuration example of a chair according to a fifth embodiment.
  • 13 is a cross-sectional view showing an example of the structure of a vibration cushion according to a sixth embodiment.
  • FIG. 4A and 4B are top views showing an example of the structure of a vibration member. 13 is a cross-sectional view showing an example of the structure of a vibration cushion according to a sixth embodiment.
  • FIG. 13 is a top view of an audio system according to a seventh embodiment.
  • FIG. 2 is a top view showing an example of the configuration of a vibration cushion.
  • FIG. 23 is a top view of an audio system according to an eighth embodiment.
  • FIG. 2 is an exploded perspective view of a portion of the audio system.
  • 1 is a graph showing the resonant frequencies of an acoustic system.
  • 13 is a graph showing the resonance frequency of an acoustic system according to a modified example of the eighth embodiment.
  • FIG. 1 is a block diagram showing an example of the hardware configuration of an audio system 10.
  • an audio system 10 is used by a user A to appreciate audio and/or video.
  • the audio system 10 includes an audio output device 12, amplifiers 14 and 18, a low-pass filter 16, headphones 20, and a vibration cushion 40.
  • the audio system 10 is an example of an "audio system” according to the technology of the present disclosure.
  • the vibration cushion 40 is an example of a "vibration device" according to the technology of the present disclosure.
  • the audio output device 12 is a device capable of outputting an audio signal (electrical signal). Examples of the audio output device 12 include a television, a personal computer, a laptop computer, a tablet computer, a game console, a portable or stationary music player, or a smartphone. In the example shown in FIG. 1, a laptop computer is shown as the audio output device 12.
  • the audio signal is a signal for playing audio on an audio playback device.
  • the audio signal may be an analog audio signal or a digital audio signal.
  • "audio" includes, for example, sound and voice.
  • the audio signal is output from the audio output device 12 in a form having multiple audio directionalities.
  • the audio directionality refers to the direction from which the audio is heard.
  • the audio directionality includes a direction from the left side of user A and a direction from the right side of user A.
  • audio signals are output from the audio output device 12 on two channels, L and R. That is, audio signals are output on two channels, the R channel corresponding to audio from the right side and the L channel corresponding to audio from the left side.
  • L and R an example in which audio signals are output on two channels, L and R, will be given.
  • the audio signal output from the audio output device 12 is output to a signal line 15 (see FIG. 1) one end of which is connected to the audio output device 12.
  • the signal line 15 has a first branch line 15A and a second branch line 15B. Therefore, when the audio output device 12 selects the L channel as the channel of the audio signal, the audio signal is sent to the L channel of the first branch line 15A and the second branch line 15B. Also, when the signal output unit 132 selects the R channel as the channel of the audio signal, the audio signal is sent to the R channel of the first branch line 15A and the second branch line 15B.
  • the audio signal input to the signal line 15 is input to the audio playback device via the second branch line 15B, and is output to the user A as audio via the audio playback device. In the example shown in FIG. 1, headphones 20 are shown as the audio playback device.
  • the amplifier 14 provided on the second branch line 15B is a device for amplifying audio signals.
  • the amplifier 14 amplifies the audio signal output from the audio output device 12 that is output to the audio playback device (here, headphones 20).
  • the headphones 20 connected to the second branch line 15B are a device capable of outputting audio corresponding to an audio signal to the user 20.
  • the headphones 20 are worn on the head of the user 20, and output audio corresponding to the audio signal to the user 20 by playing back the audio.
  • the headphones 20 are an example of a "headphone" according to the technology disclosed herein.
  • headphones 20 are shown here as an example of an audio playback device, this is merely one example, and earphones may be used instead of headphones 20.
  • a speaker built into audio output device 12 may be used, or a speaker separate from audio output device 12 may be used.
  • the low-pass filter 16 connected to the first branch line 15A is a device that extracts only low-frequency components from the audio signal.
  • low-frequency components refer to components below 100 Hz.
  • the low-pass filter 16 extracts low-frequency components from the audio signal output from the audio output device 12 and output to the vibration cushion 40 (described below).
  • the frequency band that humans can easily detect as vibration is components below 100 Hz. Therefore, the frequency of vibration that can be easily generated in the vibration cushion 40 is also set to be below 100 Hz. Therefore, by extracting components below 100 Hz, vibration can be efficiently generated in the vibration cushion 40.
  • the audio signal is input to the amplifier 18.
  • the amplifier 18 is a device for amplifying audio signals, similar to the amplifier 14.
  • the amplifier 18 amplifies the audio signal from which the low-frequency components have been extracted by the low-pass filter 16.
  • the amplifier 18 then outputs the audio signal to the vibration cushion 40.
  • the vibration cushion 40 is a device capable of supporting a part of the body of the user A and imparting vibration to the user A.
  • the vibration cushion 40 is an example of a "vibration cushion" according to the technology of the present disclosure.
  • the user A is sitting on the chair 30, and the vibration cushion 40 is placed on the upper surface of the seat 32 of the chair 30. That is, the user A is sitting on the chair 30 via the vibration cushion 40.
  • the type, purpose, or place of use of the chair 30 is not particularly limited, and it is sufficient that the chair 30 is an apparatus on which the user A can sit.
  • the chair 30 include office chairs, sofas for one or more people, reclining chairs, gaming chairs, chairs, or seats in general (for example, seats in automobiles, aircraft, or trains, or seats in entertainment facilities such as movie theaters, amusement parks, game centers, museums, or art galleries, etc.).
  • the vibration cushion 40 receives an audio signal from the audio output device 12.
  • the vibration cushion 40 includes a receiving terminal 40A and a vibrating member 44.
  • the receiving terminal 40A to which a terminal (not shown) provided at the end of the first branch line 15A is connected, is a terminal that receives an audio signal output from the amplifier 18.
  • An example of the receiving terminal 40A is a terminal such as a plug, but this is merely one example.
  • the receiving terminal 40A may be any terminal that can receive an audio signal, and there are no particular limitations on its shape or type.
  • the audio signal received via the receiving terminal 40A is input to the vibrating member 44.
  • Fig. 2 is an external perspective view showing an example of the configuration of the vibration cushion 40.
  • Fig. 3 is a cross-sectional view showing the example of the configuration of the vibration cushion 40, taken along line BB in Fig. 2.
  • the vibration cushion 40 has a flat rectangular parallelepiped shape.
  • the X direction shown in Fig. 2 is the left direction of the vibration cushion 40, and the opposite direction is the right direction.
  • the Y direction is the front direction of the vibration cushion 40, and the opposite direction is the rear direction.
  • the Z direction is the upward direction of the vibration cushion 40, and the opposite direction is the downward direction.
  • the vibration cushion 40 is composed of an exterior member 41, a cushion member 42, and a vibration member 44.
  • the exterior member 41 is a member that constitutes the outer surface of the vibration cushion 40, and the parts that constitute the vibration cushion 40 are housed inside the exterior member 41.
  • the exterior member 41 is, for example, a bag-shaped member made of cloth.
  • the cushion member 42 is a flexible member that can support the user A, and is, for example, a honeycomb gel cushion, a urethane foam cushion, a bead cushion, or a combination of these.
  • the thickness, size, or shape of the cushion member 42 is appropriately set according to the comfort of sitting on the vibration cushion 40 as a cushion, the size, etc.
  • the vibration member 44 is a member capable of generating vibrations to be applied to the user A.
  • the vibration member 44 is capable of generating vibrations in response to an audio signal received via the receiving terminal 40A.
  • the vibration member 44 is an example of a "vibration unit" according to the technology of the present disclosure.
  • a plurality of vibration members 44 are provided in the vibration cushion 40. In the example shown in FIG. 2, two vibration members 44A and 44B are provided as the vibration member 44.
  • the vibration member 44A is disposed on the right side of the vibration cushion 40, and the vibration member 44B is disposed on the left side of the vibration cushion 40. In other words, the vibration member 44 is divided into two, one on the left side and one on the right side with respect to the user A.
  • the structure of the vibration member 44A will be described as an example, but the vibration member 44B has a similar structure.
  • the vibration member 44A has a transmission part 46A and a vibration source 48A.
  • the transmission part 46A is a plate-shaped member. In the example shown in FIG. 2, the transmission part 46A is a flat member having a longitudinal direction along the front-to-rear direction of the vibration cushion 40 (the direction along the Y direction shown in FIG. 2).
  • the size, thickness, shape, or material of the transmission part 46A is appropriately set taking into consideration the durability when supporting the user A, and the vibration characteristics when transmitting vibrations to the user A.
  • the transmission part 46A is an example of a "transmission part" according to the technology disclosed herein.
  • the vibration source 48A is a device capable of generating vibrations in response to an audio signal received via the receiving terminal 40A (see FIG. 1).
  • the vibration source 48A is an example of a "vibration source” according to the technology of the present disclosure.
  • An example of the vibration source 48A is a voice coil actuator (voice coil motor).
  • the vibration source 48A is attached to the transmission unit 46A. In the example shown in FIG. 2, the vibration source 48A is attached to the lower surface of the transmission unit 46A.
  • the vibration generated by the vibration source 48A is transmitted to the transmission unit 46A, and is further transmitted to the user A via the transmission unit 46A. In this way, the transmission unit 46A applies the vibrations generated by the vibration source 48A to the user A while supporting the user A on its upper surface.
  • a plurality of vibration sources 48A are provided for the transmission unit 46A.
  • four vibration sources 48A are provided for the transmission unit 46A.
  • two are provided in front of the transmission unit 46A, and the remaining two are provided behind the transmission unit 46A.
  • each vibration source 48A is disposed in a plurality of recess-shaped spaces 42-1 provided on the upper surface of the cushion member 42.
  • the number and arrangement of the vibration sources 48A are not particularly limited, and are appropriately set depending on the size of the transmission unit 46A, the vibration force of the vibration sources 48A, etc.
  • the manner in which the vibration source 48A is attached to the transmission part 46A is not particularly limited as long as the vibration generated in the vibration source 48A is transmitted to the transmission part 46A.
  • the vibration source 48A may be directly attached to the transmission part 46A by mechanical fastening means such as screws, or may be bonded with an adhesive or the like.
  • the two may be integrated by fitting the vibration source 48A into a hole provided in the transmission part 46A.
  • the multiple vibration members 44A and 44B are capable of generating vibrations independently of each other. Note that, although an example in which the vibration members 44A and 44B are completely separated as separate members has been described here, the technology of the present disclosure is not limited to this.
  • the multiple vibration members 44A and 44B may be partially connected by a link member or the like, or may be connected by a vibration absorbing member.
  • the left and right split vibrating members 44A and 44B correspond to the left and right channels of the audio signal, respectively.
  • the left vibrating member 44B corresponds to the audio signal output on the L channel
  • the right vibrating member 44A corresponds to the audio signal output on the R channel.
  • the vibrating member 44 has two split vibrating members 44A and 44B, and vibrates according to the directionality of the sound formed by the multiple channels through which the audio signal is output.
  • the vibration member 44 may be divided into four parts according to the two channels, L and R (e.g., divided into four parts for front, rear, left and right).
  • vibration cushion 40 is capable of supporting at least a portion of user A's thigh A1.
  • vibration cushion 40 is capable of supporting user A's buttocks A2.
  • the transmission unit 46A is provided in the vibration cushion 40 at a position facing at least a part of the thigh A1 and buttocks A2 of the user A.
  • the transmission unit 46A is provided in the vibration cushion 40 at a position facing the ischium A3 of the user A.
  • two members facing each other means that, for example, in the case of two members 1A and 1B, the members 1A and 1B are aligned on a predetermined straight line, regardless of whether or not there is an object other than the members 1A and 1B between the members 1A and 1B.
  • FIG. 4 is a conceptual diagram showing an example of an embodiment in which the sound system 10 is used.
  • the sound system 10 is used.
  • the audio system 10 For example, consider the case where user A is using the audio system 10, as shown in Fig. 4.
  • the audio output device 12 As described above, the audio signal is output in a form having a plurality of audio directionalities.
  • the audio directionality includes a direction from the left side of user A and a direction from the right side of user A.
  • the audio signal output from the audio output device 12 to the signal line 15 is audio from the left direction with respect to user A. That is, the audio signal is audio from the left side as seen by user A.
  • audio is output from the driver unit built into the left housing 22 of the headphones 20 that receives the audio signal from the second branch line 15B.
  • the audio signal is input from the first branch line 15A to the receiving terminal 40A of the vibration cushion 40.
  • the left vibration member 44B of the vibration cushion 40 vibrates. Therefore, the vibration generated in the vibration source 48B is transmitted to user A via the transmission unit 46B.
  • the left vibration member 44B vibrates in response to the audio from the left direction. That is, the audio signal is input synchronously to the headphones 20 and the receiving terminal 40A, and as a result, the audio output of the left housing 22 and the vibration of the left vibration member 44B are executed synchronously.
  • the audio signal output from the audio output device 12 to the signal line 15 is audio from the right direction with respect to user A. That is, the audio signal is audio from the right side as seen by user A.
  • audio is output from the driver unit built into the right housing 24 of the headphones 20 that receives the audio signal from the second branch line 15B.
  • the audio signal is input from the first branch line 15A to the receiving terminal 40A of the vibration cushion 40.
  • the vibration member 44A on the right side of the vibration cushion 40 vibrates. Therefore, the vibration generated in the vibration source 48A is transmitted to user A via the transmission unit 46A.
  • the right vibration member 44A vibrates in response to the audio from the right direction. That is, the audio signal is input synchronously to the headphones 20 and the receiving terminal 40A, and as a result, the audio output of the right housing 24 and the vibration of the right vibration member 44A are executed synchronously.
  • the vibrations generated independently in the divided vibrating members 44 are applied to user A.
  • This allows the vibrations to be transmitted to user A with directionality.
  • the sound from the headphones 20 and the vibrations from the vibrating cushion 40 are synchronized, and the sound and vibrations are sensed with directionality by user A.
  • the sound can be experienced not only with the ears but also with the body, realizing a user experience in which the whole body is enveloped (e.g., listening to music or watching a movie).
  • audio signals output in a form having multiple audio directionalities are received via the receiving terminal 40A.
  • the vibration members 44 are capable of vibrating independently of each other according to the directionality of the audio (for example, audio heard from the right side and audio heard from the left side).
  • the vibrations generated in the divided vibration members 44 are applied to the user A.
  • the vibrations can be given directionality in the same way as the audio.
  • the user can experience directional audio and vibrations, creating a greater sense of realism when listening to video or music, and improving the user experience.
  • Previously known bass bodily acoustic technologies simply vibrated an actuator in time with the sound.
  • the directionality of the sound is formed by the multiple channels through which the audio signal is output, and multiple vibrating members 44 can vibrate independently according to the directionality of the sound.
  • the vibrations experienced also have directionality, creating a more realistic feeling and improving the user experience.
  • the directionality of the sound received via the receiving terminal 40A has two channels, L and R, through which the sound signal is output.
  • the vibration member 44 is then divided into two parts corresponding to the number of the two L and R channels. This makes the directionality of the sound clearer in accordance with three-dimensional sound, such as when the directionality of the sound is expressed in surround sound.
  • the vibration cushion 40 there are two sound directional directions, from the left side and from the right side of the user A.
  • the vibration member 44 is divided into two parts, the left side and the right side, and the left side vibration member 44B vibrates in response to sound from the left side, and the right side vibration member 44A vibrates in response to sound from the right side.
  • the directionality of sound is expressed in two directions, the left side and the right side, of the user A, and is often output as a sound signal from the sound source.
  • the vibration member 44 is divided into left and right, and the left side vibration member 44B vibrates in response to sound from the left side, and the right side vibration member 44A vibrates in response to sound from the right side.
  • the vibration of the left side vibration member 44A can be made strong or weak depending on the strength of the sound output from the left driver unit, and the vibration of the right side can be made strong or weak depending on the strength of the sound output from the right side.
  • the vibration from the vibrating member 44A on the right side will be stronger than that from the left side, and the sound expression and vibration expression will combine to make user A more likely to sense the directionality of the sound in a direction toward the right side between the direction from the left side and the direction from the right side.
  • user A can experience sound and vibration with left-right directionality, and when sound has directionality, it is possible to create directionality in the vibrations experienced, creating a greater sense of realism in listening to video or music and improving the user experience.
  • the vibration cushion 40 is provided with vibration sources 48A and 48B capable of generating vibrations in response to an audio signal received via the receiving terminal 40A.
  • the vibration cushion 40 is also provided with transmission parts 46A and 46B, which are plate-shaped members to which the vibration sources 48A and 48B are attached.
  • the vibration sources 48A and 48B are attached to the lower surfaces of the transmission parts 46A and 46B, and the transmission parts 46A and 46B, which support the user A on their upper surfaces, impart the vibrations generated by the multiple vibration sources 48A and 48B to the user A. Therefore, since the vibrations are transmitted to the user A from the transmission parts 46A and 46B (surfaces), the user A is more likely to feel the vibrations compared to when the vibrations are directly transmitted to the user A from the individual vibration sources 48A and 48B.
  • each of the divided vibration members 44A and 44B includes a vibration source 48A or 48B that vibrates in response to an audio signal, and a transmission unit 46A or 46B that is a plate-shaped member to which the vibration source 48A or 48B is attached.
  • the vibration of the vibration source 48A or 48B is transmitted to the user A via the transmission unit 46A or 46B. Therefore, since the vibration is transmitted to the user A from the transmission unit 46A or 46B (surface), the user A is more likely to feel the vibration than when the vibration is directly transmitted to the user A from the vibration source 48A or 48B.
  • the transmission unit 46A or 46B is interposed between the vibration source 48A or 48B and the user A. Therefore, the vibration is transmitted to user A from transmission parts 46A and 46B, which have a large area, reducing discomfort.
  • the area of transmission parts 46A and 46B that transmit vibration to user A is large enough to cover the ischium A3 of any user A, so vibration is easily imparted to ischium A3.
  • a plurality of vibration sources 48A and 48B are attached to the transmission parts 46A and 46B. Since a plurality of vibration sources 48A and 48B are attached to the transmission parts 46A and 46B, the transmission parts 46A and 46B can be vibrated as a whole, compared to a case where only one vibration source is provided.
  • the audio signal input to the vibration sources 48A, 48B is an extracted low-frequency component of 100 Hz or less.
  • the low-frequency component of the audio signal of 100 Hz or less is reproduced as vibration by the vibration cushion 40, and this vibration is transmitted to the user A.
  • low-frequency components of 100 Hz or less are a frequency band that is difficult to reproduce as audio using a speaker or the like.
  • the user A can experience the low-frequency component as vibration, improving the quality of video or music appreciation and improving the user experience.
  • the vibration cushion 40 is capable of supporting at least a portion of the thigh A1 and the buttocks A2 of the user A.
  • the transmission units 46A and 46B are provided in positions facing at least a portion of the thigh A1 and the buttocks A2. The vibration generated by the vibration cushion 40 is transmitted to the buttocks A2 and then propagates from there to the upper body and is felt by the user A.
  • the vibration cushion 40 is capable of supporting the buttocks A2 of the user A.
  • the transmission units 46A and 46B are provided at a position facing the ischium A3 of the buttocks A2 of the user A.
  • the vibration generated by the vibration cushion 40 is transmitted to the ischium A3, and from there to the upper body by bone conduction, and is felt by the user A.
  • This allows the user A to enjoy sounds that envelop him/her, with the sounds sensed by the ears of the user A and the vibrations felt continuously from the ischium A3 to the pelvis and spine and across the upper body.
  • the quality of video or music appreciation can be improved, and the user experience can be improved.
  • vibrations are less likely to be absorbed by the joints, and the ischium A3 protrudes when the user A is supported by the vibration cushion 40, so vibrations are more likely to be transmitted to the user A.
  • the audio system 10 also includes a vibrating cushion 40 and headphones 20 capable of outputting audio to user A in response to an audio signal.
  • the audio output from the headphones 20 is synchronized with the vibrations produced by the vibrating cushion 40. This allows the audio heard through the headphones 20 to be synchronized with the vibrations produced by the vibrating cushion 40, allowing user A to enjoy audio that envelops him or her.
  • the audio system 10 therefore improves the quality of video or music listening, and can provide an improved user experience.
  • This configuration uses headphones 20 and also vibrating cushion 40, which makes it possible to reduce the volume of the speakers and reduce noise to the outside while giving the audio a sense of realism, improving the user experience.
  • the bass sounds from the headphones 20 and the bass sounds generated by bone conduction from the vibration cushion 40 are mixed around the chest. Therefore, when user A looks at a display (not shown) showing live footage of a concert corresponding to the sound output from the headphones 20, he or she feels immersed as if he or she is at a concert venue, improving the user experience.
  • the sound image from the headphones 20 is inside user A's head, and the vibrations from the vibration cushion 40 are below user A (for example, below buttocks A2), and the sound and vibrations mix around the chest.
  • a music experience that envelops the entire body is realized, improving the user experience.
  • the audio signal is output in two channels, left and right, but the technology of the present disclosure is not limited to this.
  • the audio signal may be output in four channels, including front and back, in addition to left and right.
  • the vibrating member 44 is divided into four, corresponding to front, back, left and right.
  • the audio signal may also be output in 5.1 channels, or the audio signal may be a surround audio signal output in two channels.
  • the vibration member 44 is divided into two parts, but the technology of the present disclosure is not limited to this.
  • the vibration member 44 may be divided into three or more parts.
  • the vibration cushion 40 was placed on the seat 32 of the chair 30, but the technology of the present disclosure is not limited to this.
  • the vibration cushion 40 may be placed between the backrest of the chair 30 and the back of the user A.
  • the vibration cushion 40 may be used as a standalone cushion rather than being used together with the chair 30.
  • FIG. 5 is a top view showing an example of the arrangement of the vibration members 44A and 44B. 5, the vibration cushion 40 is divided into left and right vibration members 44A and 44B and arranged on the left and right sides. In the following description, the vibration member 44A will be taken as an example, but the vibration member 44B has a similar configuration.
  • the vibration member 44A includes a transmission section 46A and a vibration source 48A.
  • the transmission section 46A is divided in the front-rear direction.
  • the transmission section 46A is divided into five in the front-rear direction. That is, the transmission section 46A includes the transmission sections 46A1 to 46A5.
  • the transmission sections 46A1 to 46A5 may be completely separate, or may be connected by a link member.
  • a slit may be made in the thickness direction of the transmission section 46A to form the sections corresponding to the transmission sections 46A1 to 46A5.
  • Each of the transmission units 46A1 to 46A5 is provided with a vibration source 48A.
  • each of the transmission units 46A1 to 46A5 is provided with two vibration sources 48A.
  • the transmission parts 46A and 46B are arranged separately in each of the divided vibration members 44. As a result, since the transmission parts 46A and 46B are arranged separately, it becomes easier to make the transmission parts 46A and 46B fit the user A. In other words, since each of the divided transmission parts 46A1 to 46A5 changes angle within the vibration cushion 40 to match the body shape of the user A, it becomes easier to make the transmission part 46A fit the user A.
  • Fig. 6 is an external perspective view showing an example of the configuration of the vibration cushion 40.
  • Fig. 7 is a cross-sectional view showing an example of the configuration of the vibration cushion 40, taken along line BB in Fig. 6. 6 and 7, the vibration cushion 40 has a lower cushion member 42A below the transmission part 46A, and an upper cushion member 42B above the transmission part 46A.
  • the vibration cushion 40 has a lower cushion member 42A below the transmission part 46A, and an upper cushion member 42B above the transmission part 46A.
  • the lower cushion member 42A and the upper cushion member 42B are disposed with the transmission part 46A in between.
  • the lower cushion member 42A and the upper cushion member 42B are both flexible cushion members.
  • the lower cushion member 42A is disposed on the opposite side of the transmission unit 46A from the user A.
  • a recessed space 42A-1 is formed on the upper surface of the lower cushion member 42A, and the vibration source 48A is housed within this space 42A-1.
  • the lower cushion member 42A prevents the vibration of the vibration source 48A from being transmitted to the outside (for example, to the seat 32 of the chair 30 on which the vibration cushion 40 is placed (see FIG. 1)).
  • the upper cushion member 42B is disposed closer to the user A than the transmission unit 46A.
  • the upper cushion member 42B is capable of deforming in accordance with the body shape of the user A (here, the shape of at least a part of the thigh A1 and the buttocks A2) while supporting the user A. In other words, the upper cushion member 42B is capable of fitting to the body shape of the user A.
  • the upper cushion member 42B transmits to the user A the vibrations generated in the vibration source 48A and transmitted via the transmission unit 46A.
  • the upper cushion member 42B is an example of a "first cushion" according to the technology disclosed herein.
  • the upper cushion member 42B has a higher vibration transmissibility than the lower cushion member 42A. This allows the vibrations generated in the vibration source 48A to be efficiently transmitted to the user A.
  • the vibration transmissibility refers to the ratio between the vibration force generated in the vibration source 48A and the vibration force transmitted to the outside (e.g., the user A).
  • the upper cushion member 42B is a low-resilience elastic urethane foam
  • the lower cushion member 42A is a honeycomb gel cushion.
  • differences in the vibration transmissibility are caused by differences in the materials, but this is merely one example.
  • differences in the vibration transmissibility may be caused by differences in the density of the air bubbles in the urethane foam, or differences in the vibration transmissibility may be caused by differences in the thickness of the cushion members.
  • the vibration cushion 40 according to the second embodiment is provided with an upper cushion member 42B that is disposed closer to the user A than the transmission section 46A and transmits the vibrations generated by the vibration member 44 to the user A.
  • the vibrations are then transmitted to the user A via the upper cushion member 42B.
  • the upper cushion member 42B fits the user A more easily, and the vibrations are transmitted to the user A from a wider region (area) of the upper cushion member 42B, making it easier for the user A to feel the vibrations.
  • the presence of the upper cushion member 42B allows the vibration cushion 40 to transmit vibrations to the human body more generally.
  • the upper cushion member 42B deforms to encase the buttocks A2, and vibrations are transmitted to the user A from the top surface of the upper cushion member 42B, making it easier for the vibration cushion 40 to transmit vibrations to the human body over a wider area.
  • a lower cushion member 42A is provided that is disposed on the opposite side of the transmission section 46A from the user A and that suppresses the transmission of vibrations from the vibration source 48A to the outside. This makes it difficult for vibrations from the vibration sources 48A and 48B to be transmitted to the outside other than the user A (for example, the chair 30 on which the vibration cushion 40 is placed, etc.).
  • the upper cushion member 42B has a higher vibration transmissibility than the lower cushion member 42A. This allows the vibrations from the vibration sources 48A and 48B to be efficiently transmitted to the user A. In addition, the vibrations are prevented from being transmitted to the outside other than the user A.
  • the vibrating cushion 40 has one vibrating member 50.
  • FIG. 8 is a perspective view showing an example of the configuration of the vibration cushion 40.
  • the vibration cushion 40 includes a vibration member 50 that is a member capable of generating vibrations to be applied to the user A.
  • the vibration member 50 has one transmission unit 52 and multiple vibration sources 54.
  • the transmission unit 52 is a plate-shaped member. The size, thickness, shape, or material of the transmission unit 52 is appropriately set in consideration of durability when supporting the user A, vibration characteristics when transmitting vibrations to the user A, and the like.
  • the transmission unit 52 is provided with multiple vibration sources 54.
  • the vibration sources 54 generate vibrations in response to audio signals received via the receiving terminal 40A (see FIG. 1).
  • the vibration sources 54 are, for example, voice coil actuators, and in the example shown in FIG. 8, eight vibration sources 54 are attached to the transmission unit 52.
  • the vibrations generated by the vibration sources 54 are transmitted to the user A via the transmission unit 52.
  • vibration sources 54 are provided in the transmission unit 52.
  • four vibration sources 54A are provided on the right side of the transmission unit 52, and the remaining four vibration sources 54B are provided on the left side of the transmission unit 52.
  • the four vibration sources 54A on the right side two are provided in front of the transmission unit 52, and the remaining two are provided on the rear side of the transmission unit 52.
  • the four vibration sources 54B on the left side two are provided in front of the transmission unit 52, and the remaining two are provided on the rear side of the transmission unit 52.
  • the number and arrangement of the vibration sources 54 are not particularly limited, and are set appropriately depending on the size of the transmission unit 52, the vibration force of the vibration sources 54, etc.
  • the vibration sources 54A and 54B arranged on the left and right of the transmission unit 52 correspond to the left and right channels of the audio signal, respectively.
  • the vibration source 54B on the left side corresponds to the audio signal output on the L channel
  • the vibration source 54A on the right side corresponds to the audio signal output on the R channel.
  • the vibration cushion 40 is provided with vibration sources 54A and 54B capable of generating vibrations in response to an audio signal received via the receiving terminal 40A.
  • the vibration cushion 40 is also provided with a transmission unit 52, which is a plate-shaped member to which the vibration sources 54A and 54B are attached.
  • the vibration sources 54A and 54B are attached to the lower surface of the transmission unit 52, and the vibrations generated by the vibration sources 54A and 54B are applied to the user in a state in which the user A is supported on the upper surface of the transmission unit 52. Therefore, since the vibrations are transmitted to the user A from the transmission unit 52 (surface), the user A is more likely to feel the vibrations compared to when the vibrations are transmitted directly to the user A from the vibration sources 54A and 54B.
  • vibration sources 54A and 54B arranged on the left and right correspond to the left and right channels of the audio signal, respectively, but the technology disclosed herein is not limited to this.
  • an audio signal of one channel e.g., an audio signal in which the left and right channels are mixed, such as a subwoofer output
  • eight vibration sources 54 may be input to eight vibration sources 54.
  • the vibrating cushion 40 includes the vibrating member 44
  • the technology of the present disclosure is not limited to this.
  • the vibrating member 44 is provided on a vibrating sheet 60 that is separate from the cushion 70.
  • the vibrating sheet 60 is an example of a "vibration device" according to the technology of the present disclosure.
  • Fig. 9 is an external perspective view showing a configuration example of the vibrating sheet 60 and the cushion 70.
  • Fig. 10 is a cross-sectional view showing the configuration example of the vibrating sheet 60 and the cushion 70, taken along line BB in Fig. 9. 9 and 10, the vibrating sheet 60 is placed on the upper surface of a cushion 70.
  • the cushion 70 is a flexible member capable of supporting the user A, and is, for example, a honeycomb gel cushion, a urethane foam cushion, a bead cushion, or a combination thereof.
  • the vibrating sheet 60 is a sheet-like member capable of supporting a part of the body of the user A and imparting vibrations to the user A, and is used by being laid on a cushion 70 or the like.
  • the vibrating sheet 60 comprises an exterior member 61 and a vibrating member 44.
  • the exterior member 61 is a member that constitutes the outer surface of the vibrating sheet 60.
  • the parts that constitute the vibrating sheet 60 are housed inside the exterior member 61.
  • the exterior member 61 is, for example, a bag-like member made of cloth.
  • the vibration source 48A is attached to the transmission unit 46A.
  • the vibration source 48A generates vibrations according to the audio signal received via the receiving terminal 40A (see FIG. 1).
  • the vibrations generated by the vibration source 48A are transmitted to the user A via the transmission unit 46A.
  • audio signals output in a form having multiple audio directionalities are received via the receiving terminal 40A.
  • the vibrating members 44 are capable of vibrating independently of each other according to the directionality of the audio (for example, audio heard from the right side and audio heard from the left side).
  • the vibrations generated in the divided vibrating members 44 are applied to the user A. In this way, when vibrations are applied according to audio, the vibrations can be made to have the same directionality as the audio. As a result, the user can experience directional audio and vibrations, creating a greater sense of realism when listening to video or music, and improving the user experience.
  • the vibrating sheet 60 is provided with vibration sources 48A and 48B capable of generating vibrations in response to an audio signal received via the receiving terminal 40A.
  • the vibrating sheet 60 is also provided with transmission units 46A and 46B, which are plate-shaped members to which the vibration sources 48A and 48B are attached.
  • the vibration sources 48A and 48B are attached to the lower surfaces of the transmission units 46A and 46B, and the vibrations generated by the vibration sources 48A and 48B are applied to the user in a state in which the user A is supported on the upper surfaces of the transmission units 46A and 46B. Therefore, since the vibrations are transmitted to the user A from the transmission units 46A and 46B (surfaces), the user A is more likely to feel the vibrations compared to when the vibrations are directly transmitted to the user A from the vibration sources 48A and 48B.
  • the vibrating cushion 40 was placed on the seat 32 of the chair 30, but the technology of the present disclosure is not limited to this.
  • the vibrating member 44 is incorporated in a chair 80.
  • FIG. 11 is an external perspective view showing an example of the configuration of a chair 80.
  • a chair 80 includes a seat 82 and a backrest 84.
  • the seat 82 includes a vibrating member 44.
  • the vibrating member 44 is disposed inside the seat 82.
  • the vibrating member 44 includes vibrating members 44A and 44B.
  • a vibration source 48A is attached to a transmission unit 46A.
  • the vibration source 48A generates vibrations according to an audio signal received via a receiving terminal 40A (see FIG. 1).
  • the chair 80 is equipped with a seat 82 including a vibrating member 44.
  • the vibrations generated by the vibration source 48A are transmitted to the user A via the transmission unit 46A.
  • the chair 80 is an example of a "vibration device" according to the technology of the present disclosure.
  • chair 80 examples include single or multiple seat sofas, reclining chairs, gaming chairs, floor chairs, or seats in general (for example, seats in automobiles, aircraft, or trains, or seats in entertainment facilities such as movie theaters, amusement parks, game centers, museums, or art galleries).
  • audio signals output in a form having multiple audio directionalities are received via the receiving terminal 40A (see FIG. 1).
  • the vibrating members 44 are capable of vibrating independently of each other according to the directionality of the audio (for example, audio heard from the right side and audio heard from the left side).
  • the vibrations generated in the divided vibrating members 44 are applied to the user A.
  • the vibrations can be made to have the same directionality as the audio.
  • the user can experience directional audio and vibrations, creating a greater sense of realism when listening to video or music, and improving the user experience.
  • the chair 80 is provided with vibration sources 48A and 48B capable of generating vibrations in response to an audio signal received via the receiving terminal 40A (see FIG. 1).
  • the chair 80 is also provided with transmission units 46A and 46B, which are plate-shaped members to which the vibration sources 48A and 48B are attached.
  • the vibration sources 48A and 48B are attached to the lower surfaces of the transmission units 46A and 46B, and the vibrations generated by the vibration sources 48A and 48B are applied to the user in a state in which the user A is supported on the upper surfaces of the transmission units 46A and 46B. Therefore, since the vibrations are transmitted to the user A from the transmission units 46A and 46B (surfaces), the user A is more likely to feel the vibrations compared to when the vibrations are transmitted directly to the user A from the vibration sources 48A and 48B.
  • the vibration cushion 40 includes the vibration member 44, but the technology of the present disclosure is not limited to this.
  • the vibration cushion 40 includes a vibration member 90.
  • FIG. 12 is a cross-sectional view showing an example of the structure of the vibration cushion 40.
  • the vibration cushion 40 includes a vibrating member 90.
  • An upper cushion member 42B is provided above the vibrating member 90.
  • a lower cushion member 42A is provided below the vibrating member 90. That is, in the vibration cushion 40, the vibrating member 90 is sandwiched between the upper cushion member 42B and the lower cushion member 42A.
  • the vibration member 90 has a transmission part 92 and a support plate 94. Both the transmission part 92 and the support plate 94 are plate-shaped members.
  • the transmission part 92 is disposed above the vibration source 96, i.e., the transmission part 92 is disposed on the user A side of the vibration source 96.
  • the support plate 94 is disposed below the vibration source 96A. In other words, the support plate 94 is provided on the opposite side of the vibration source 96 to the user A.
  • the size, thickness, and shape of the transmission unit 92 and the support plate 94 are not particularly limited.
  • the size, thickness, shape, or material of the transmission unit 92 and the support plate 94 are appropriately set taking into consideration the durability when supporting the user A, and the vibration characteristics when transmitting vibrations to the user A, etc.
  • the vibration member 90 also has a plurality of vibration sources 96.
  • the plurality of vibration sources 96 are, for example, voice coil actuators.
  • the upper ends of the plurality of vibration sources 96 are attached to the transmission section 92, and the lower ends are attached to the support plate 94. That is, in the vibration member 90, the plurality of vibration sources 96 are sandwiched between the transmission section 92 and the support plate 94.
  • FIG. 13 is a top view showing an example of the structure of the vibration member 90.
  • the multiple vibration sources 96 include multiple vibration sources 96A and 96B.
  • four vibration sources 96A are shown as the multiple vibration sources 96A.
  • the four vibration sources 96A are disposed on the right side of the transmission unit 92. The configuration of the right side of the transmission unit 92 will be described below.
  • three vibration sources 96A1 are disposed at the rear of the transmission unit 92.
  • the three vibration sources 96A1 are disposed on a circumference centered on point P.
  • point P is a point on the transmission unit 92 at a position corresponding to the ischium A3 on the right side of user A.
  • the three vibration sources 96A1 are disposed on a circumference centered on a position corresponding to the ischium A3 on the right side of user A.
  • the three vibration sources 96A1 may also be disposed at equal intervals on the circumference.
  • the three vibration sources 96A1 are disposed at intervals of 120 degrees from each other.
  • arc slits 98A are formed on the outer periphery of the three vibration sources 96A1.
  • the arc slits 98A are slits that extend in an arc shape and penetrate the transmission section 92 in the thickness direction.
  • the arc slits 98A are formed in an arc shape centered on point P.
  • the arc slits 98A are intermittently formed on a circumference centered at point P. In other words, when viewed along the circumferential direction in which the arc slits 98A are formed, an area in which the arc slits 98A are formed is followed by an area in which the arc slits 98A are not formed, and then an area in which the arc slits 98A are formed continues again.
  • multiple arc slits 98A are formed concentrically around point P.
  • two arc slits 98A are formed on the inner circumference side and the outer circumference side.
  • the circumferential positions at which the slits are formed are different between the inner circumference side arc slit 98A2 and the outer circumference side arc slit 98A1.
  • the circumferential position at which the slits of the inner circumference side arc slit 98A2 are formed is shifted by 45 degrees from the circumferential position at which the slits of the outer circumference side arc slit 98A1 are formed. This allows the vibrations generated in the vibration source 96A1 to be transmitted more partially to the user A. As a result, it is possible to give the vibrations directionality.
  • One of the four vibration sources 96A, vibration source 96A2, is disposed in front of the transmission section 92.
  • a pair of linear slit regions 99A are formed on both the left and right sides of vibration source 96A2.
  • a plurality of linear slits 97A are formed in each of the pair of linear slit regions 99A.
  • the linear slits 97A are slits that extend along the front-to-rear direction of the transmission section 92 and penetrate the transmission section 92 in the thickness direction.
  • the linear slit region 99A1 on the right side with respect to the vibration source 96A2 will be described, but the linear slit region 99A2 on the left side is similar.
  • the linear slits 97A are formed intermittently along the front-to-rear direction of the transmission part 92.
  • three linear slits 97A1 are formed along the front-to-rear direction.
  • two linear slits 97A2 are formed intermittently in the center of the linear slit region 99A1.
  • three linear slits 97A3 are formed intermittently.
  • the three straight slits 97A1 and the three straight slits 97A3 are arranged in corresponding positions. That is, the three straight slits 97A1 and the three straight slits 97A3 are arranged symmetrically with respect to the central straight slit 97A2.
  • the central straight slit 97A2 is also arranged in a position shifted in the front-to-rear direction relative to the right-side straight slit 97A1 and the left-side straight slit 97A3.
  • the configuration of the left side of the transmission unit 92 is linearly symmetrical to the configuration of the right side of the transmission unit 92 described above. That is, on the left side of the transmission unit 92, the arrangement of the vibration source 96B, the arc slit 98B, the linear slit 97B, and the linear slit region 99B is linearly symmetrical to the arrangement of the vibration source 96A, the arc slit 98A, the linear slit 97A, and the linear slit region 99A on the right side, across a straight line that runs along the front-to-rear direction through the center of the transmission unit 92.
  • the vibration cushion 40 is provided with a vibration member 90.
  • the vibration member 90 is provided with a support plate 94, which is a plate-shaped member to which a vibration source 96 is attached.
  • the support plate 94 is provided on the opposite side of the vibration source 96 to the user A.
  • the vibration source 96 is held from below by the support plate 94, and the vibration source 96 can be vibrated more stably than in the absence of the support plate 94.
  • the support plate 94 covers the bottom of the vibration source 96. Therefore, the support plate 94 can protect the vibration source 96. For example, adverse effects on the vibration source 96, such as the inclusion of dust or impact on the vibration source 96, are suppressed.
  • the length, number, and arrangement of the arc slits 98A, 98B and the straight slits 97A, 97B shown in the sixth embodiment are merely examples. Furthermore, the arc slits 98A, 98B and the straight slits 97A, 97B do not necessarily need to penetrate in the thickness direction, and may be slits with a depth sufficient to provide a directional vibration.
  • the arc slits 98A, 98B and linear slits 97A, 97B shown in the sixth embodiment may of course also be provided in the support plate 94.
  • the arc slits 98A, 98B and linear slits 97A, 97B are provided in the transmission part 92 , but this is merely one example.
  • the transmission part 92 may be divided (e.g., divided into left and right parts) so that the divided transmission parts 92 can vibrate independently of each other.
  • the vibration member 90 has an elastic member 93 between the transmission unit 92 and the support plate 94.
  • the elastic member 93 is a member capable of supporting the transmission unit 92.
  • One end of the elastic member 93 is attached to the lower surface of the transmission unit 92, and the other end is attached to the upper surface of the support plate 94.
  • the elastic member 93 is formed of, for example, a soft resin (for example, rubber).
  • the elastic member 93 elastically supports the transmission unit 92, thereby preventing the load caused by the user A sitting on the vibration cushion 40 from concentrating on the vibration source 96.
  • the elastic member 93 only needs to be capable of supporting the support plate 94, and the dimensions, number, and arrangement of the elastic member 93 are not particularly limited.
  • a buffer member 95 may be provided between the vibration source 96 and the support plate 94 in the vibration member 90.
  • the buffer member 95 absorbs vibrations from the vibration source 96, thereby suppressing excessive transmission of the vibrations from the vibration source 96 to the support plate 94.
  • the buffer member 95 is formed, for example, of a soft resin foam (for example, urethane foam). Note that the buffer member 95 only needs to suppress the transmission of vibrations from the vibration source 96 to the support plate 94, and the dimensions, number, and arrangement of the buffer member 95 are not particularly limited.
  • the buffer member 95 can also be provided between the transmission unit 92 and the support member 93. Furthermore, the buffer member 95 can be provided between the support member 93 and the support unit 94.
  • the present disclosure may be implemented as a seventh embodiment shown in Fig. 15 and Fig. 16.
  • four speakers 100A, 100B, 100C, and 100D are installed on the floor surface on which a chair 30 is installed.
  • the speaker 100A is located on the front left side of the chair 30, the speaker 100B is located on the front right side of the chair 30, the speaker 100C is located on the rear left side of the chair 30, and the speaker 100D is located on the rear right side of the chair 30.
  • Four second branch lines 15B branched from the signal line 15 are connected to each of the speakers 100A, 100B, 100C, and 100D via the amplifier 14 of the audio output device 12 shown in Fig. 1.
  • the audio output device 12 of the seventh embodiment outputs audio signals to the signal line 15 in two channels, LR.
  • Each of the speakers 100A, 100B, 100C, and 100D that receive the audio signal via the second branch line 15B can output audio toward the chair 30.
  • the speakers 100A and 100B arranged in front of the chair 30 can output audio toward the rear.
  • the speakers 100C and 100D arranged in the rear of the chair 30 can output audio toward the front.
  • An L channel audio signal corresponding to audio from the left side is input to the speakers 100A and 100C arranged on the left side, and audio is output from each of the speakers 100A and 100C.
  • an R channel audio signal corresponding to audio from the right side is input to the speakers 100B and 100D arranged on the right side, and audio is output from each of the speakers 100B and 100D.
  • the speakers 100A, 100B, 100C, and 100D are examples of "sound reproducing devices" according to the technology of the present disclosure.
  • a vibration cushion 40 is placed on the seat 32 of the chair 30. Furthermore, user A is seated on the vibration cushion 40 (seat 32). This user A is not wearing headphones.
  • the vibration cushion 40 of the seventh embodiment is configured to include an exterior member 41, a cushion member 42, and a vibration member 44.
  • the vibration member 44 can generate vibrations according to an audio signal received via a receiving terminal 40A (not shown in FIG. 15 and FIG. 16).
  • the vibration member 44 of the seventh embodiment includes four vibration members 44A, 44B, 44C, and 44D arranged in the front-rear and left-right directions.
  • the vibration member 44A is arranged in the left front part of the vibration cushion 40
  • the vibration member 44B is arranged in the right front part of the vibration cushion 40
  • the vibration member 44C is arranged in the left rear part of the vibration cushion 40
  • the vibration member 44D is arranged in the right rear part of the vibration cushion 40.
  • the vibration member 44A has one transmission part 46A and four vibration sources 48A, and the transmission part 46B has one transmission part 46B and four vibration sources 48B. Furthermore, the vibration member 44C has one transmission part 46C and four vibration sources 48C, and the transmission part 46D has one transmission part 46D and four vibration sources 48D.
  • Transmission units 46A, 46B, 46C, and 46D each have a receiving terminal 40A (not shown in FIGS. 15 and 16).
  • the receiving terminal 40A of transmission unit 46A is connected to each vibration source 48A by a signal line
  • the receiving terminal 40A of transmission unit 46B is connected to each vibration source 48B by a signal line
  • the receiving terminal 40A of transmission unit 46C is connected to each vibration source 48C by a signal line
  • the receiving terminal 40A of transmission unit 46D is connected to each vibration source 48D by a signal line.
  • four first branch lines 15A (not shown in FIGS. 15 and 16) branched off from the signal line 15 are connected to each receiving terminal 40A.
  • the audio signal from which the low-frequency components have been extracted by the low-pass filter 16 provided on each first branch line 15A is input to the vibration sources 48A, 48B, 48C, and 48D via the amplifier 18 and receiving terminal 40A provided on each first branch line 15A.
  • the audio signal output from the audio output device 12 is output in synchronization with at least one of the speakers 100C, 100A, 100D, 100B and at least one of the vibration sources 48A, 48B, 48C, 48D via the first branch line 15A and the second branch line 15B.
  • the signal output unit 132 outputs the audio signal to the corresponding first branch line 15A and second branch line 15B.
  • the speakers 100A, 100C located to the left of the user A output audio.
  • the audio signal generated by the audio output device 12 is further input to the vibration sources 48A, 48C, causing the vibration members 44A, 44C to vibrate.
  • the speakers 100B and 100D located to the right of the user A output audio.
  • the audio signal generated by the audio output device 12 is further input to the vibration sources 48B and 48D, causing the vibration members 44B and 44D to vibrate.
  • the vibrating members 44A, 44B, 44C, and 44D provided at positions corresponding to the speakers 100A, 100B, 100C, and 100D that are outputting sound vibrate in sync with each speaker.
  • each of the vibrating members 44A, 44B, 44C, and 44D can generate vibrations according to the directionality of the sound that is determined by the channel through which the audio signal is output. Therefore, the vibrating cushion 40 of the seventh embodiment can achieve the same effect as the vibrating cushion 40 of the first embodiment.
  • the seventh embodiment has four speakers and vibrating members
  • the number of speakers and vibrating members may be any number as long as there is more than one. Regardless of the number of speakers and vibrating members, a vibrating member provided at a position corresponding to the relative position of the speaker outputting sound with respect to the chair 30 (user A) is vibrated in sync with the speaker.
  • the number of speakers and the number of vibrating members are not limited to being the same.
  • a configuration may be used in which, for two speakers arranged in the front left and right directions, four vibrating members are arranged on the left and right of the front and back of the vibration cushion.
  • a configuration may be used in which, for four speakers arranged in the front left and right directions, two vibrating members are arranged on the left and right of the vibration cushion.
  • the present disclosure may be implemented as an eighth embodiment shown in Figs. 17 to 19.
  • the audio output device 12 of the eighth embodiment is applied to the floor structure of one room provided in a building.
  • a flat bottom plate portion 110 shown in Fig. 18 is fixed to the entire bottom of the room.
  • the lower ends of a plurality of support members 111 are fixed to the upper surface of the bottom plate portion 110.
  • the lower surface of a floor plate portion 112, which is a flat plate member parallel to the bottom plate portion 110 and has the same planar shape as the bottom plate portion 110, is fixed to the upper surface of each support member 111. Therefore, a space is formed between the upper surface of the bottom plate portion 110 and the lower surface of the floor plate portion 112.
  • each bracket 115 is fixed to four locations on the underside of the floor plate portion 112.
  • the front shape of each bracket 115 is approximately T-shaped.
  • the bracket 115 has a mounting hole 116 that penetrates the bracket 115 in its thickness direction.
  • the cross-sectional shape of the mounting hole 116 is circular.
  • Approximately cylindrical vibration sources 120A, 120B, 120C, and 120D are supported in the mounting holes 116 of each bracket 115.
  • Each vibration source 120A, 120B, 120C, and 120D is a voice coil actuator whose axis (the vibration direction of the vibration source) is parallel to the axis of the mounting hole 116.
  • the axis 120X of the vibration sources 120A, 120B, 120C, and 120D is parallel to the front-to-rear direction.
  • vibration source 120A is located between chair 30 and speaker 100A
  • vibration source 120B is located between chair 30 and speaker 100B
  • vibration source 120C is located between chair 30 and speaker 100C
  • vibration source 120D is located between chair 30 and speaker 100D. That is, in a plan view, vibration source 120A is located on the front left side of chair 30, vibration source 120B is located on the front right side of chair 30, vibration source 120C is located on the rear left side of chair 30, and vibration source 120D is located on the rear right side of chair 30.
  • the receiving terminals 40A shown in FIG. 1 are provided at four locations on the underside of the floor plate portion 112 (not shown in FIGS. 17 and 18).
  • the vibration sources 120A, 120B, 120C, and 120D are connected to each of the receiving terminals 40A by signal lines.
  • four first branch lines 15A branching off from the signal line 15 are connected to each of the receiving terminals 40A. Therefore, the audio signal from which the low-frequency components have been extracted by the low-pass filter 16 is input to each of the vibration sources 120A, 120B, 120C, and 120D via the amplifiers 18 provided on each of the first branch lines 15A and the receiving terminals 40A.
  • the floor plate portion 112 and the bracket 115 are an example of a "vibration portion.”
  • the floor plate portion 112, the bracket 115, and the vibration sources 120A, 120B, 120C, and 120D are an example of a "vibration device.”
  • the audio signal output from the audio output device 12 is output in synchronization with at least one of the speakers 100C, 100A, 100D, 100B and at least one of the vibration sources 120A, 120B, 120C, 120D via the first branch line 15A and the second branch line 15B.
  • the signal output unit 132 outputs the audio signal to the corresponding first branch line 15A and second branch line 15B.
  • the speakers 100A, 100C located to the left of user A output audio.
  • the audio signal generated by the audio output device 12 is further input to the vibration sources 120A, 120C. Therefore, the vibrations generated by the vibration sources 120A, 120C are transmitted via the brackets 115 supporting the vibration sources 120A, 120C to the parts of the floorboard section 112 to which the brackets 115 are fixed. Therefore, the parts of the floorboard section 112 to which the brackets 115 are fixed vibrate.
  • the speakers 100B, 100D located to the right of the user A output audio.
  • the audio signal generated by the audio output device 12 is further input to the vibration sources 120B, 120D. Therefore, the vibrations generated by the vibration sources 120B, 120D are transmitted to the parts of the floorboard 112 to which the brackets 115 are fixed, via the brackets 115 supporting the vibration sources 120B, 120D. Therefore, the parts of the floorboard 112 to which the brackets 115 are fixed vibrate.
  • the parts of the floor panel portion 112 to which each bracket 115 is fixed can generate vibrations according to the directionality of the audio that is determined by the channel to which the audio signal is output. Therefore, the vibration cushion 40 of the eighth embodiment can achieve the same effect as the vibration cushion 40 of the first embodiment.
  • a signal other than an audio signal can also be input to the vibration source.
  • a signal that matches the resonant frequency of the vibration device can be input to the vibration source.
  • the resonant frequency of the vibration device is the composite value of the resonant frequencies of each component of the vibration device. According to this modification, each vibration device can be vibrated efficiently.
  • the vibration device has multiple resonant frequencies
  • at least one of the resonant frequencies may be matched with the input signal (vibration frequency) of the vibration source.
  • the input signal of the vibration source may be matched with at least one of the primary resonant frequency, the secondary resonant frequency, and the tertiary resonant frequency under the control of the control devices 13, 14A, and 16A.
  • the input signal of the vibration source may be changed under the control of the control devices 13, 14A, and 16A to match the input signal of the vibration source with any two of the primary resonant frequency, the secondary resonant frequency, and the tertiary resonant frequency.
  • the input signal of the vibration source may be changed under the control of the control devices 13, 14A, and 16A to match the input signal of the vibration source with the primary resonant frequency, the secondary resonant frequency, and the tertiary resonant frequency. This allows the vibration device to vibrate efficiently.
  • FIG. 19 is a graph showing the resonant frequencies of the vibration device of the eighth embodiment (floor plate portion 112, bracket 115, and vibration sources 120A, 120B, 120C, 120D).
  • the vibration device of the eighth embodiment has a primary resonant frequency and a secondary resonant frequency as resonant frequencies.
  • the input signals of vibration sources 120A, 120B, 120C, 120D may be changed by the control of control devices 13, 14A, 16A to match the input signals of vibration sources 120A, 120B, 120C, 120D with at least one of the primary resonant frequency and the secondary resonant frequency.
  • Figure 20 is a graph showing the resonant frequencies of a vibration device (floor plate portion 112, bracket 115, vibration sources 120A, 120B, 120C, 120D, and elastic member 125) of a modified example of the eighth embodiment.
  • a vibration device floor plate portion 112, bracket 115, vibration sources 120A, 120B, 120C, 120D, and elastic member 125
  • two elastic members 125 are fixed to the outer peripheral surface of each vibration source 120A, 120B, 120C, 120D, and each elastic member 125 contacts the inner surface of the corresponding mounting hole 116. Therefore, the vibration generated by each vibration source 120A, 120B, 120C, 120D is transmitted to the floor plate portion 112 via the elastic member 125 and bracket 115.
  • the vibration device of this modified example has a primary resonant frequency, a secondary resonant frequency, and a tertiary resonant frequency as resonant frequencies.
  • the input signals of the vibration sources 120A, 120B, 120C, and 120D may be changed by the control of the control devices 13, 14A, and 16A to match the input signals of the vibration sources 120A, 120B, 120C, and 120D with at least one of the primary resonant frequency, the secondary resonant frequency, and the tertiary resonant frequency.
  • the resonant frequency of the vibration device in each embodiment and each modified example is 100 Hz or less.
  • the vibration source is controlled by the control devices 13, 14A, and 16A so that the input signal is 100 Hz or less.
  • the signal output unit 132 may be capable of outputting audio signals for the L and R channels of the signal line 15.
  • the left and right housings 22, 34 of the headphones 20 output audio, and the vibrating members 44A and 44B vibrate.
  • the magnitude (amplitude) of the vibration of the vibration source corresponding to the sound reproduction device that is outputting sound can be changed according to the volume of the output sound. For example, the louder the sound output by the sound reproduction device, the greater the vibration of the vibration source can be increased, and the quieter the sound output by the sound reproduction device, the greater the vibration of the vibration source can be decreased.
  • the vibration cushion 40 may be provided on the front of the backrest 84 of the chair 80 shown in FIG. 11, and the back of the user A may be supported by the vibration cushion 40.
  • the thickness direction of the vibration cushion 40 is approximately parallel to the front-rear direction.
  • the vibrating member 44 may be provided inside the backrest 84.
  • the vibrating members 44A and 44B may be provided inside the backrest 84.
  • the thickness direction of the transmission parts 46A and 46B of the vibrating member 44 is approximately parallel to the front-rear direction.
  • a vibrating cushion may also be provided on the top surface of the mattress of the bed (not shown), or a vibrating member may be provided inside the mattress.
  • a vibrating cushion may be provided on the clothing worn by user A, or a vibrating member may be provided on the clothing.
  • the electrical hardware in the sound system 10 e.g., the amplifiers 14, 18, and the low-pass filter 16
  • the electrical hardware in the sound system 10 may be integrated with these.
  • an audio signal is input to the receiving terminal 40A in the audio system 10 via a wire (signal line), but the technology of the present disclosure is not limited to this.
  • the audio signal may be input to the receiving terminal 40A by wireless communication (for example, communication using a wireless communication standard such as Bluetooth (registered trademark)).
  • the vibration cushion 40 is equipped with a communication I/F (not shown).
  • the audio signal may be input to the sound reproduction device using wireless communication (for example, communication using a wireless communication standard such as Bluetooth (registered trademark)).
  • wireless communication for example, communication using a wireless communication standard such as Bluetooth (registered trademark)
  • a and/or B is synonymous with “at least one of A and B.”
  • a and/or B means that it may be just A, or just B, or a combination of A and B.
  • the same idea as “A and/or B” is also applied when three or more things are expressed by linking them with “and/or.”

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

Le problème décrit par la présente invention est d'améliorer l'expérience de l'utilisateur en générant une sensation de présence plus forte dans l'appréciation d'une vidéo ou d'un son. La solution selon la présente invention comprend une partie de vibration 44 pouvant générer une vibration correspondant à un signal audio. Le signal audio présente une directivité du son. La partie de vibration peut générer une vibration en fonction de la directivité du son, et la vibration générée dans la partie de vibration est appliquée à un utilisateur A.
PCT/JP2024/023410 2023-06-27 2024-06-27 Dispositif de vibration Ceased WO2025005197A1 (fr)

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JP2025530202A JPWO2025005197A1 (fr) 2023-06-27 2024-06-27

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JP2023105280 2023-06-27

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PCT/JP2024/023410 Ceased WO2025005197A1 (fr) 2023-06-27 2024-06-27 Dispositif de vibration

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0658748U (ja) * 1993-01-29 1994-08-16 株式会社タチエス 振動体感式シートのシートパッド構造
JP2000157733A (ja) * 1998-11-30 2000-06-13 T Five:Kk ゲーム機用音響効果装置
JP2001086580A (ja) * 1999-09-14 2001-03-30 Akuubu Lab:Kk 振動音楽の表現方法及びその装置
JP2015201671A (ja) * 2014-04-04 2015-11-12 クラリオン株式会社 振動音響装置、振動音響出力方法および振動音響プログラム
WO2021059422A1 (fr) * 2019-09-26 2021-04-01 日本電信電話株式会社 Système de présentation de vibrations
JP2021524972A (ja) * 2019-02-22 2021-09-16 シーケー マテリアルズ ラブ カンパニー，リミティド 音響信号を触覚信号に変換させる触覚提供装置及び方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0658748U (ja) * 1993-01-29 1994-08-16 株式会社タチエス 振動体感式シートのシートパッド構造
JP2000157733A (ja) * 1998-11-30 2000-06-13 T Five:Kk ゲーム機用音響効果装置
JP2001086580A (ja) * 1999-09-14 2001-03-30 Akuubu Lab:Kk 振動音楽の表現方法及びその装置
JP2015201671A (ja) * 2014-04-04 2015-11-12 クラリオン株式会社 振動音響装置、振動音響出力方法および振動音響プログラム
JP2021524972A (ja) * 2019-02-22 2021-09-16 シーケー マテリアルズ ラブ カンパニー，リミティド 音響信号を触覚信号に変換させる触覚提供装置及び方法
WO2021059422A1 (fr) * 2019-09-26 2021-04-01 日本電信電話株式会社 Système de présentation de vibrations

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