WO2009117914A1 - Appareil audiovisuel à diffusion radio et procédé de commande - Google Patents

Appareil audiovisuel à diffusion radio et procédé de commande Download PDF

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Publication number
WO2009117914A1
WO2009117914A1 PCT/CN2009/070575 CN2009070575W WO2009117914A1 WO 2009117914 A1 WO2009117914 A1 WO 2009117914A1 CN 2009070575 W CN2009070575 W CN 2009070575W WO 2009117914 A1 WO2009117914 A1 WO 2009117914A1
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WO
WIPO (PCT)
Prior art keywords
video
audio
unit
transmitter
central processing
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/CN2009/070575
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English (en)
Chinese (zh)
Inventor
林忠宏
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.)
Jow Tong Technology Co Ltd
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Jow Tong Technology 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 Jow Tong Technology Co Ltd filed Critical Jow Tong Technology Co Ltd
Publication of WO2009117914A1 publication Critical patent/WO2009117914A1/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
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Definitions

  • the invention relates to an audio-visual wireless broadcasting device and a control method thereof, in particular to a video or audio data of a computer or various multimedia players, which can be transmitted to a television, a projector, an audio, a speaker and the like by using a wireless transmission method.
  • Broadcast for users to watch and listen, to get a clearer, larger viewing screen and higher quality viewing experience, and to receive audio and video at the same place in each device and in each room.
  • Data and viewing, and the practical and convenient audio-visual wireless broadcasting device and control method are innovatively designed.
  • MP3 MPEG-Movie Picture Experts Group-
  • MP4 MPEG-4; Movie Picture Experts Group-4) player
  • CD Compact Disk
  • VCD Video Compact Disk
  • DVD Digital Versatile/Video Disk
  • the personal computer device because it is limited by the size limit of its computer screen, causes its visual effect when watching a movie or playing a game is not good, and long-time viewing is easy to affect people's vision, and Personal computers are usually placed in the study room. In addition to being unable to allow many people to share the viewing, there is no way to have a comfortable environment (such as the living room, audio-visual room) to get a better sense of presence.
  • the multimedia player can be directly connected to the TV screen to play, but usually connected in a one-to-one manner, so the people to be watched must be in the same room, and cannot be viewed in each room. , the selectivity in its use is relatively reduced.
  • the inventors have provided research and development and practical production experience of relevant industries for many years, and have researched and improved the existing structure and defects, and provided an audio-visual wireless broadcasting device and a control method, in order to achieve each In other rooms and places, you can receive video and audio data at the same time, and play the effect of clearer and higher quality audio and video, and thus improve the better practical value of the surrounding matching device.
  • the audio-visual radio broadcasting device and the control method of the present invention are mainly provided with an audio-visual transmitter, a video-audio receiver and a remote controller, respectively, and the audio-visual transmitter can be used for playing with a computer or an MP3, an MP4, a CD player, a VCD player, a DVD player.
  • Various multimedia players such as a computer are connected, and the video receiver is connected to various playback devices such as a television, a projector, an audio, a speaker, etc., and the computer or other multimedia can be utilized by the audio and video transmitter.
  • the multimedia audio and video information in the player is wirelessly transmitted, and is received by the audio/video receiver for playing through the playing device, and the remote controller can also be used to control the video receiver or the video transmitter to operate the connected external device, or far
  • the computer at the end controls the playback of multimedia audio and video information; thereby enabling the user to view and listen to the multimedia audio and video data, and to obtain a clearer, larger viewing screen and higher quality, better sound quality. At the same time, it can achieve the same viewing in different places and rooms, and it will increase its practical convenience.
  • Figure 1 is an external view of the structure of the present invention
  • Figure 2 is a block diagram showing the overall structure of the present invention
  • FIG. 3 is a block diagram showing the structure of the audio and video transmitter of the present invention.
  • FIG. 4 is a block diagram showing the structure of a video receiver of the present invention.
  • FIG. 5 is a block diagram showing the structure of the remote controller of the present invention.
  • Figure 6 is a flow chart showing the use of the audio and video transmitter of the present invention.
  • Figure 7 is a flow chart showing the use of the video receiver of the present invention.
  • FIG. 8 is a flow chart of using a radio frequency module of a remote controller according to the present invention.
  • Figure 9 is a flow chart showing the use of the remote controller of the present invention.
  • FIG. 10 is a flow chart showing the use of the remote controller of the present invention in a computer mode
  • FIG. 11 is a flow chart showing the use of the remote controller of the present invention in a television mode
  • Figure 13 is a schematic view of the use state of the present invention.
  • USB connector 2 AV receiver 21
  • Central processing unit 22 Wireless receiving and transmitting unit 221
  • Video codec unit 25 Remote control module 251 Control unit 252 Infrared receiver unit 26 External input unit 3 Remote control
  • Control unit 32 Input unit 321 button 322 mouse
  • FIG. 1 for the appearance of the structure of the present invention
  • FIG. 2 for the overall structure of the present invention.
  • the present invention is mainly provided with an audio-visual transmitter 1, a video receiver 2 and a remote controller 3, respectively.
  • 1 can be connected with a computer 4 or a variety of multimedia players 5 and audio source signals 6 such as CD, DVD, MP3, MP4, and the audio and video receiver 2 can be used with various playback devices such as televisions, projectors, stereos, speakers, and the like. 7-phase connection; where:
  • the video transmitter 1 is shown in the block diagram of the video transmitter of the present invention.
  • the multiplexer input unit 11 is provided with the computer 4 and various multimedia modules.
  • the player 5 or the network cable is connected for inputting audio and video signals such as VGA, DVI, HDMK RCA or Composite, and the multiplex interface input unit 11 is connected to the central processing unit 12, and the central processing unit 12 is also connected with video and audio codec.
  • the unit 13 is also connected to the multiplexed interface input unit 11, and the audio/video codec unit 13 is directly connected to the audio source signal 6, and the central processing unit 12 is further connected with a wireless transmitting and receiving unit. 14.
  • the wireless transmitting and receiving unit 14 is connected to the antenna 141 at the same time, so that the antenna 141 can transmit and receive signals complying with the IEEE 802.11 wireless network communication protocol standard at a frequency of 2.4 GHz to 5 GHz, and the central processing unit 12
  • a remote control radio frequency module 15 is connected, and the remote control radio frequency module 15 is connected to the central processing unit 12 by the control unit 151, the control list
  • the wireless receiving unit 152 is connected to the wireless receiving unit 152, and the antenna 153 is connected to the wireless receiving unit 152 to receive the radio frequency signal by using the antenna 153, and the USB (Universal Serial Bus) connector is connected to the control unit 151.
  • 154 is provided for connection with the computer 4.
  • the video receiver 2 as shown in the block diagram of the video receiver of the present invention, is provided with a central processing unit 21, and the central processing unit 21 is connected to the wireless receiving and transmitting unit 22, and the The wireless receiving and transmitting unit 22 is connected to the antenna 221, so that the antenna 221 can receive and transmit signals with a frequency of 2.4 GHz to 5 GHz conforming to the IEEE 802.11 wireless network communication protocol standard, and the central processing unit 21 is respectively connected with the audio and video output.
  • the module 23 and the audio/video codec unit 24, the video and audio codec unit 24 is simultaneously connected to the video and audio output module 23, and the video output module 23 is played through various lines such as a signal line and a television, a projector, an audio, a speaker, and the like.
  • the device 7 is connected for outputting an image and a sound signal, and a remote control module 25 is connected to the central processing unit 21, and the remote controller control module 25 is connected to the central processing unit 21 by a control unit 251, the control The unit 251 is connected to the infrared receiving unit 252 so as to be receivable by the infrared receiving unit 252.
  • the infrared signal sent by the controller 3; the external processing unit 26 of the USB interface and the RJ-45 specification network cable slot is connected to the central processing unit 21 for externally plugging the hard disk HD, the portable memory card, and the network.
  • Video and audio data is input to the central processing unit 21 for reading and processing, and is coded and processed by the audio/video codec unit 24, and then connected to the television, projector, audio, speaker, etc. by the audio/video output module 23 by signal lines. 7 Do the play.
  • the remote controller 3 as shown in the block diagram of the remote controller of the present invention, is provided with a control unit 31, and the control unit 31 is connected with an input unit 32, and the input unit 32 can be a general button. 321 or a mouse 322 corresponding to the operation computer 4, a rocker 323, etc., and a wireless transmitting unit 33 is connected to the control unit 31, and the wireless transmitting unit 33 is connected with an antenna 331 to enable the radio frequency to be transmitted by using the antenna 331
  • the signal is used to remotely operate the video transmitter 1 , and the infrared light emitting unit 35 is connected to the control unit 31 for remote operation of the video receiver 2 , and the control unit 31 is connected to the indication unit 34 .
  • the module 34 can be a laser
  • the module is configured to utilize the laser light emitted by the indicating unit 34 as a presentation indication.
  • the invention is divided into two parts, one part is implemented in the wireless transmission connection method between the audio-visual transmitter 1 and the audio-visual receiver 2, and the other part is implemented in the control method of the remote control 3 between the audio-visual transmitter 1 and the video-audio receiver 2, when When the wireless transmission connection portion is implemented, the video transmitter 1 is used in the startup program.
  • FIG. 6 for the video transmitter usage flowchart of the present invention, where: S101: The audio transmitter 1 is powered on, starting action;
  • the audio and video transmitter 1 performs initial setting of the central processing unit 12;
  • the audio and video transmitter 1 checks whether the network connection is completed. If the network connection is not completed, the process returns to S102 to re-execute the booting process, and if the network connection is completed, the next action is continued;
  • a video transmitter 1 selects a source of the input video signal
  • the audio and video transmitter 1 determines that the received video signal source is an analog video signal or a digital video signal. If it is determined that the analog video signal is performed, the S108 step is performed, and if it is determined to be a digital video signal, the step S109 is performed;
  • the source of the video signal is an analog video signal
  • the analog video signal is encoded into a corresponding digital video signal by using the audio/video codec unit 13;
  • S111 The digital video signal after the packet is waiting to be transmitted
  • S112 determining whether the video receiver 2 starts to receive the signal, if it has not started receiving, then returns to S111 to wait for transmission, and if the video receiver has started receiving, the process proceeds to S113; S113: according to the 802.11 wireless communication protocol The subsequent digital video signal is transmitted to the video receiver 2; S114: determining whether the video receiver 2 ends the reception of the signal, if the signal reception has not been completed, then returns to S113 to continue the transmission, and if the video receiver 2 has stopped the signal reception, the step S115 is performed;
  • FIG. 7 for the use of the video receiver of the present invention, where:
  • S201 The audio and video receiver 2 starts up and starts to operate
  • S202 The video receiver 2 performs its booting process
  • the video receiver 2 performs initial setting of the central processing unit 21;
  • S204 The audio and video receiver 2 is turned on, and the user operation screen is displayed;
  • the audio/video receiver 2 determines whether the user selects to perform the setting procedure, and if the user selects to perform the setting procedure, the process proceeds to S206, and if the user does not select to perform the setting procedure, the process proceeds to S207;
  • S206 The user performs a setting procedure, and after the setting is completed, returns to S204 and restarts the booting operation;
  • S2071 playing multimedia files (such as: video, picture, music, etc.) through the external input unit 26;
  • S2075 It is judged whether the playback ends or not. If the playback is to be continued, the process returns to step S2071, and the steps S2071 to S2074 are repeated. If the playback ends, the process returns to S204.
  • S208 Determine whether the user chooses to play the received multimedia message transmitted by the audio and video transmitter 1. No., if the multimedia signal transmitted by the video transmitter 1 is selected, the S2081 step is performed, and if the multimedia signal transmitted by the video transmitter 1 is not selected, the process returns to S204.
  • S2084 The analog signal is sent to the audio and video output module 23 for output playback;
  • step S2085 It is judged whether or not the playback is finished. If the playback is to be continued, the process returns to step S2081, and the steps S2081 to S2084 are repeated. If the playback ends, the process returns to S204.
  • the video transmitter 1 is connected to the computer 4, and the remote control radio module 15 controlled by the remote controller 3 is used in the startup program.
  • the remote control radio module 15 controlled by the remote controller 3 is used in the startup program.
  • FIG. 8 for the remote control radio module of the present invention. , among them:
  • the remote control radio frequency module 15 performs initial setting
  • S1506 Clear the packet data of each input unit 32 of the remote controller 3, such as: button 321, mouse 322, joystick 323, etc.;
  • S1507 Waiting for the remote control RF module 15 to receive the signal, if there is no reception, continue to wait, if there is a command signal sent by the wireless transmitting unit 33 of the remote controller 3, then S1508 is performed;
  • S1510 The start transmission function transmits data back to the computer 4 to control the computer 4 connected to the USB connector 154 of the remote control RF module 15, and returns to S1507 to wait for the remote control RF module 15 to receive the signal.
  • the present invention is implemented in the remote control device 3, when the remote controller 3 is used in the startup program, please refer to FIG. 9 for the remote controller usage flowchart of the present invention, where:
  • S3053 It is judged whether the input command is the change mode, if it is the change mode, it returns to S3061, and if the input command is not the change mode, S3054 is performed;
  • the conversion input unit 32 corresponds to a protocol code, such as a button 321, a mouse 322, a joystick 323, and the like;
  • the remote control radio frequency module 15 connected to the video transmitter 1 and the computer 4 transmits an instruction to receive an instruction of the user to operate the remote controller 3 by the wireless receiving unit 152 of the remote control radio frequency module 15 to be connected to the USB connector 154.
  • the computer 4 performs the corresponding command manipulation;
  • S3057 It is judged whether the information of the input unit 32 is stopped. If there is no stop, the process proceeds to S3055 to S3056, and if the information of the input unit 32 is stopped, the process proceeds to S3058.
  • S3058 Turn off the wireless transmitting unit 33, and return to S3052.
  • FIG. 11 for the use of the remote controller of the present invention in the television mode, where: S3061: Enter the playback device 7 (eg: TV) mode;
  • S3062 determining whether the input unit 32 of the remote controller 3 has an instruction input, and if there is no instruction input, continuously waiting for the input of the instruction, and if there is an instruction input, performing S3063 step;
  • S3066 transmitting information to the video receiver 2 to receive the command of the user operating the remote controller 3 by the infrared receiving unit 252 of the remote controller control module 25 of the video receiver 2, and outputting the video output module 23 Go to the audio and video files of the playback device 7 (such as: TV) to select, play, fast forward, stop and other related operations;
  • S3069 Turn off the infrared emission unit 35 and return to S3062.
  • FIG. 12 a schematic diagram of the state of use of the present invention.
  • various types of playback devices 7 such as a television, a projector, an audio, and a speaker are installed in an audio-visual room or a living room, and
  • the computer 4 is placed in the study room, and the computer 4 is directly connected to the video transmitter 1 when the device is in use, and the playback device 7 and the video receiver 2 are connected to each other.
  • the operation of the remote controller 3 enables the video transmitter 1 to be operated.
  • the central processing unit 12 selects the designated signal source input by the multiplex interface input unit 11, and the video transmitter 1 encodes the video information in the computer 4, the connected multimedia player 5 or the network line by the video/audio encoding and decoding unit 13.
  • the frequency signal converted to the IEEE 802.11 standard is processed by the wireless transmitting and receiving unit 14 to be transmitted by the antenna 141, and the wireless receiving and transmitting unit 22 of the video receiver 2 receives the wireless transmitting and receiving unit with the antenna 221.
  • a signal conforming to the IEEE 802.11 standard of the audio and video information transmitted by the antenna 141, that is, the video encoding and decoding unit 24 of the video receiver 2 can be solved.
  • the playback device 7 is played back for viewing by the public; here, even when the computer 4 is set farther and is disposed in a different room from the playback device 7, since the screen of the playback device 7 is a computer with another room
  • the 4 screens are the same, so you can get better presence and audio-visual enjoyment when watching movies and music through the higher-quality, high-quality and larger-screen playback device 7;
  • the remote controller 3 since the video transmitter 1 is connected to the computer 4 by the USB connector 154, the remote controller 3 is controlled by the general button 321 of the input unit 32 or the mouse 322, the joystick 323, etc., the remote controller 3
  • the emitted radio frequency signal can be received by the antenna 153 of the remote control radio frequency module 15 on the AV transmitter 1, and the central processing unit 12 of the AV transmitter 1 can make the audio and video transmitter according to the command issued by the remote controller 3.
  • the computer 4 to which the USB connector 154 of 1 is connected performs the corresponding action.
  • FIG. 13 a view of the state of use of the present invention.
  • the video transmitter 1 When the video transmitter 1 is connected to a multimedia player 5 such as a VCD or a DVD, the movie and music of the multimedia player 5 can be passed.
  • the audio-visual transmitter 1 receives the video and audio data from the video receivers 2 of different places and different rooms in a one-to-many manner, and then plays them out by the connected playback device 7 to make them different places and different places. People in the room don't miss out on exciting programs because they have to deal with things.
  • the video receiver 2 is additionally provided with an external input unit 26 of a USB interface and an RJ-45 network line slot, in addition to the above-described wireless transmission of video and audio signals by the video transmitter 1 to be received by the video receiver 2 for playback.
  • the other device inputs audio and video data to be processed by the central processing unit 21 and the audio/video codec unit 24, and then the signal line is connected through the video output module 23, played by the playback device 7, and the user can transmit the infrared light from the remote controller 3.
  • the command signal sent by the unit 35 remotely operates the video and audio data connected by the external input unit 26 of the video receiver 2 to play, stop, fast forward, rewind, pause, etc., thereby increasing the practicality of the overall implementation. Convenience.
  • the present invention enables a personal computer device to wirelessly transmit video and audio information through an audio-visual transmitter, and is received by the audio-visual receiver and played by the playback device, and is not limited by the venue setting, so that the personal computer device is utilized. Appreciate, listen to audio and video information, or play games to get better visual and auditory effects, and increase the sense of presence and practical convenience.
  • the present invention enables the multimedia player to wirelessly transmit video and audio information through a video transmitter with one-to-many transmission, and is received by the audio-video receiver in different places and different rooms to play the same at the same time, so that it can Not limited by the setting, it not only makes it easier to install, but also avoids the damage of the beautiful signal lines connected to each other, and can increase its practical convenience.
  • the invention can be connected to a computer, a multimedia player or a network line by using a multiplex interface input unit in an audio-visual transmitter, so that the video signal is diversified and the scope of application is wider, and the value of the use is increased. .
  • the video player of the present invention has an external input unit of a USB interface and an RJ-45 network cable slot, so that it can input audio and video data by using other devices, and play it out through the playback device, and the user can
  • the remote control remotely operates the video and audio data connected to the external input unit of the AV receiver, which further enhances the practicality and convenience of the overall implementation.
  • the embodiments and operating methods of the present invention can achieve the intended use efficiency, and the specific structure disclosed therein has not been seen in the same product, nor has it been disclosed before the application, and has completely complied with the patent.
  • the provisions and requirements of the law therefore, the application for invention patents in accordance with the law, pleading for review, and granting patents, it is really sensible.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Selective Calling Equipment (AREA)

Abstract

La présente invention concerne un appareil audiovisuel (AV) à diffusion radio et son procédé de commande. L'appareil comporte un émetteur audiovisuel (1), un récepteur audiovisuel (2) et une télécommande (3). L'émetteur audiovisuel (1) est organisé pour se brancher sur un ordinateur (4) ou sur divers lecteurs multimédia (5) tels que MP3, MP4, lecteur de CD, lecteur de VCD, lecteur de DVD, etc. Le récepteur audiovisuel (4) est organisé pour se brancher sur divers dispositifs de restitution audiovisuelle (7) tels que télévision, projecteur, appareil stéréo, haut-parleur, etc. L'information audiovisuelle multimédia se trouvant dans l'ordinateur (4) ou dans les divers lecteurs multimédias (5) peut être émise par radio par l'émetteur audiovisuel (1), puis l'information audiovisuelle multimédia reçue par le récepteur audiovisuel (2) est affichée par les dispositifs de restitution audiovisuelle (7). Pour commander la restitution de l'information audiovisuelle multimédia, on peut se servir de la télécommande (3) de façon à mettre en œuvre le dispositif qui est branché sur le récepteur audiovisuel ou de façon à télécommander l'émetteur audiovisuel (1) de façon à mettre en œuvre l'ordinateur (4). L'invention offre ainsi aux utilisateurs plus de confort et de commodité pour regarder et écouter les données audiovisuelles multimédias.
PCT/CN2009/070575 2008-03-27 2009-02-27 Appareil audiovisuel à diffusion radio et procédé de commande Ceased WO2009117914A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810088525A CN101547027A (zh) 2008-03-27 2008-03-27 影音无线广播装置
CN200810088525.X 2008-03-27

Publications (1)

Publication Number Publication Date
WO2009117914A1 true WO2009117914A1 (fr) 2009-10-01

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PCT/CN2009/070575 Ceased WO2009117914A1 (fr) 2008-03-27 2009-02-27 Appareil audiovisuel à diffusion radio et procédé de commande

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CN (1) CN101547027A (fr)
WO (1) WO2009117914A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10897671B2 (en) * 2016-10-24 2021-01-19 Fengshuo Wang 5GHz multichannel lossless wireless audio system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103260064A (zh) * 2012-02-21 2013-08-21 侯璎卿 视频互动设备
CN103297845A (zh) * 2013-04-26 2013-09-11 东莞宇龙通信科技有限公司 实现媒体播放的方法及子机
CN104427367A (zh) * 2013-08-22 2015-03-18 联想(北京)有限公司 一种控制设备的方法和装置
CN104065991A (zh) * 2014-03-13 2014-09-24 苏州天趣信息科技有限公司 一种可传输数据的遥控器
CN110189511B (zh) * 2019-05-24 2021-01-05 深圳市朗强科技有限公司 一种信号接收装置、无线传输系统及信号切换方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2552269Y (zh) * 2002-05-31 2003-05-21 林慧龄 无线影音显示装置的传送接收控制装置
CN1522058A (zh) * 2003-02-13 2004-08-18 张文宏 无线电脑显示装置的传送接收控制装置
CN1571510A (zh) * 2003-07-22 2005-01-26 威鲸资讯有限公司 一种可共用影音输出装置的系统
CN101017605A (zh) * 2006-02-07 2007-08-15 环达电脑(上海)有限公司 多媒体影音装置的切换器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2552269Y (zh) * 2002-05-31 2003-05-21 林慧龄 无线影音显示装置的传送接收控制装置
CN1522058A (zh) * 2003-02-13 2004-08-18 张文宏 无线电脑显示装置的传送接收控制装置
CN1571510A (zh) * 2003-07-22 2005-01-26 威鲸资讯有限公司 一种可共用影音输出装置的系统
CN101017605A (zh) * 2006-02-07 2007-08-15 环达电脑(上海)有限公司 多媒体影音装置的切换器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10897671B2 (en) * 2016-10-24 2021-01-19 Fengshuo Wang 5GHz multichannel lossless wireless audio system

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