JPH02242591A - Lighting device in audiovisual playback equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lighting device in an audio-visual reproduction device,
For example, it relates to a lighting device in a video disc karaoke system.

[Conventional technology]

Video karaoke system (hereinafter referred to as karaoke system)
is a system in which a singer (user) sings into a microphone along with accompaniment music while watching the lyrics and images displayed on a monitor television.

Video karaoke systems include video disc karaoke systems, and video discs (recording media) include laser vision discs (LD) that display moving images on a monitor television, and compact discs that display still images. (CDV, CDI), etc.

A large number of devices such as a monitor television and a control device belong to such a karaoke system (=j).

[Problem to be solved by the invention]

In general, karaoke systems are installed in dimly lit locations (and many of the users are drunk. Therefore, it is necessary to illuminate the equipment that makes up the karaoke system to ensure the safety of the users. However, Once the user starts using the karaoke system (that is, singing), the mere safety lighting becomes a nuisance in terms of the performance effect.

Therefore, the present invention aims at the safety of the users by illuminating the equipment when the karaoke system is in standby state (waiting for a user to appear), and when the user is in a safe state (starting singing). In order to improve the performance effect, a lighting device is provided that turns off the lights.

[Means and operations for solving the problems] FIG. 1 shows a diagram of the principle of the present invention. The lighting device in the audio-visual playback device according to the present invention displays the video information among the video information and music information recorded on the recording medium (801), and
In a lighting device for an audio-visual playback device that superimposes a microphone (803) source on the music information and outputs the same, after turning on the power switch (802a), when no video information is being output, the switch (808) is turned on to turn on the safety lamp ( 809b) side and keep this safety lamp on. After that, the video information is transmitted to the video signal detection section (8).
05) is detected, the dimming control section (806) switches the switch (808) to the other side (blinking control side).

The monitor television (804) is for displaying the video information, the pattern storage section (807) is for storing the blinking pattern for controlling the blinking of the lamp, and the spotlight 1-(809) is for displaying the video information.
) is for flashing lights, and the speaker (810) is for outputting karaoke music.

〔Example〕

Next, embodiments of the present invention will be described based on the drawings.

FIG. 2 and FIG. 4 respectively show a block diagram and an external view of an embodiment of the present invention.

As shown in FIGS. 2 and 4, embodiments of the present invention include:
It is composed of an existing video disc karaoke system (karaoke system) 100, a lighting section 200, a speaker section 300, a monitor section 400, a floor lighting section 500, and a dimming control section 600.

First, the mechanical structure of the embodiment will be explained with reference to FIG.

A frame 702 made of a vibrator shrine and having a U-shaped side surface is fixed to the upper surface side of the pedestal 701. Pedestal 7
A floor lighting section 500 with a 4-) cutout is formed in the center of 01, and two fluorescent lamps (not shown) are installed inside the partition.
is installed. A support column 703 is fixed upright at the tip (right side in the figure) of the pedestal 70, and a monitor TV 6 constituting the monitor section 400 is mounted on the top of the column (=1
I'm being kicked. At the bottom of the front of the monitor TV 6 is a microphone 8 or a microphone I1. ．． has been done.

Two flashing spotlights 1.5a-]-5f are attached to each side of the upper outer periphery of the frame 702, so that the singers are illuminated with flashing lights.

Of these Subo] lights, the fifth spotlight h
1-5 e is a pedestal 70 as a safety lamp as described below.
Irradiate the outer periphery of 1 and equipment.

A ceiling plate 707 is attached to the upper side of the frame 702. A first acoustic reflecting plate 705 having a predetermined angle is installed on the front end F surface of the ceiling plate 707. A plate 706 is attached opposite to the first acoustic reflection plate 705.

A back plate 704 is provided between the left and right vertical columns of the frame 702.

First and second talk hack speakers 17a17b are fixed at a predetermined angle to the upper portions of the left and right vertical columns of the frame 702, respectively. These speakers 1.7
The accompaniment music emitted from the pedestal 701 is divided into those that directly reach the singer (not shown) and those that do not directly reach the singer (not shown). Accompaniment music that does not reach you directly is the first
The sound is reflected by the second acoustic reflecting plate 705 and then reflected by the second acoustic reflecting plate 706 to reach the singer's ears.

That is, two types of accompaniment music, direct and indirect, reach the singer, and the singer can enjoy a more powerful sense of presence.

In the control unit storage box 710, there is an existing karaoke system 1-
00 and a dimming control unit 600 are housed therein.

The control unit storage box 710 and the pedestal 701 are connected by a gable 711.

Next, a circuit block configuration of an embodiment of the present invention will be explained with reference to FIG.

The existing karaoke system 100 includes a video disc (recording medium)] and a karaoke device 2. The karaoke device 2 includes a source reproduction device 3, a video signal processing section 4, a mixing amplifier 5, a monitor television 4a, and a speaker 5a. A microphone 8 is connected to the mixing amplifier 5. A video signal VSI is outputted from the video signal processing section 4, and is connected to the chondral rough so that it can be manually input. The mixing amplifier 5 outputs an audio signal ASI consisting of accompaniment music and the singer's voice, and is connected to a controller 7 for manual input. Note that this audio signal AS1 is a stereo signal.

The illumination light section 200 has first to sixth spotlights h1
-5a~]-5f. Each spotlight] 5a-1-5f is connected to output terminals 14a-1.4f of the controller 7. Among the spotlights, the fifth spotlight 15e also serves as a safety lamp as described above.

The speaker section 300 includes an amplifier 16 and speakers 17a, 1
7f). The audio signal AS2, which is the output signal of the control rough, is connected to be supplied to the amplifier]6.

The monitor section 400 includes a monitor television 6. The monitor television 6 is connected to be supplied with a video signal VS2 which is an output signal of the controller 7.

The floor lighting section 500 is configured with a fluorescent lamp or the like as described above.

The dimming control section 600 includes a controller 7, a power supply circuit, and the like. The detailed configuration of the dimming control unit 600 is shown in FIG. 3, and the configuration will be explained later together with the operation.

The controller 7 has a power cord having a plug 9.
Commercial power is supplied via a. The commercial power supply is connected to the 1st to 3rd +7) 7 via the power switch
tsubLztsu) 11 a, llb, 1lc1. :Supplied. Plug 1-2a connected to first outlet source cord 6a is ljl
j people are now connected. As a result, open power is supplied to the monitor television 6. Second outlet l-
1. A plug 12b connected to the power cord 1-3a is inserted into the power cord 1b. As a result, the fluorescent lamp (not shown) of the floor lighting section 500 is turned on. Third outlet h1. A plug connected to the power cord 1" 16a]-2c is inserted into 1-c. Commercial power is thereby supplied to the amplifier 16.An audio signal is output from the controller 7. A
S3 is designed to output, and is connected to, for example, a tape deck.

Next, the operation will be explained.

First, as a prerequisite in FIG. 2, the plug 9 is inserted and connected to a commercial power supply section (not shown), and the first to third plugs 12a-]. 2 c is an outlet.

When the power switch 10 is turned on in this state, the fluorescent lamp of the floor lighting section 500 is turned on about 5 seconds later, the fifth spotlight I□15e (see Fig. 4) is turned on, and the pedestal is turned on. Illuminates the area around 70F. This lighting can prevent the user from tripping on the pedestal 70 even if the surroundings are dark. This system is particularly effective if the installation location is dark or if the user is drunk. The fifth spotlight h15e is turned off in synchronization with the video signal VS1, which will be described later, and is subject to blinking control after turning off, and when the video signal VSi is no longer output, it is turned on again and functions as a safety lamp. do.

Next, the operator of the karaoke system inserts the recording medium (video disc) into the SOS playback device 3 and selects the song that the user wants to sing. Then, the video signal processing section 4 outputs the video signal VSI, and the lyrics, background, etc. are displayed on the monitor television 6 as the video signal VS2 via the controller 7. This video signal VSI is transmitted to the video detection section 54.
(See FIG. 3) and sent to the ROM 31. Then, the fifth spotlight, which had been turned on for safety until then, was turned on by R OM 3 1]. 5 e
is controlled to turn off, and this spotlight 1 5 e is also subject to blinking control. Furthermore, the same lyrics and background as described above are also displayed on the motor television 4a using the video signal VS].

The audio signal ASi is output from the mixing amplifier 5 with a slight delay from the video signal VS described above, and is supplied to the controller 7. This audio signal ASI is supplied from the controller 7 to the amplifier 16 as an audio signal AS2, and also to a tape deck (not shown) or the like as an audio signal AS3. The audio signal AS2 output from the amplifier 16 is transmitted to the speaker 17a. 17b, the music reaches the user's ears as accompaniment music. In this state, the user sings into the microphone 8. Then, Mixing Quantum 5
The accompaniment music and voice (user's singing voice) are mixed,
It is amplified by amplifier 16 and sent to speaker 1 as karaoke music.
7a, 171).

On the other hand, the audio signal ASI described above is processed by the controller 7, and the spotlights 15a to 1. 5 f is controlled to blink. This blinking control will be explained based on FIG. 3.

As shown in Figure 3, stereo signals (L signal and R signal)
The audio signal ASI consisting of
supplied to This audio signal ASI is output from the output terminal 51a.
,51. b as an audio signal AS2, and an output terminal 52a.

52b as an audio signal AS3.

Audio signal ASI input from input terminals 21a and 21b
The L signal and R signal are amplified by buffer amplifiers 22a and 22b, respectively, whose input impedance is high impedance. The reason for the high impedance is to eliminate the influence from other audio equipment connected to the output terminals 51a, 51b, and 52a and 52b. Audio signal A
After the amplification, the SI is supplied to the mixing amplifier 23, where the LR multiplied signal is combined. The reason why the two signals are synthesized is that the rhythm signal and the audio signal (singing voice) may be unevenly distributed only in the L signal or only in the R signal.

This composite signal passes through an input sensitivity adjustment volume 24, is amplified by an amplifier 25, and is then distributed into two signals. By adjusting this volume 24, the atmosphere of the store (
For example, the level of the audio signal can be set to realize dimming of the lighting section 200 according to a quiet store.

Next, one of the composite signals is detected by the level detection section 26,
It is output at a DC level corresponding to the AC level in the composite signal. When the DC level fluctuates minutely, the spotlight constant switch 27 smooths out the fine fluctuations. In this way, in addition to the production effect generated as a result of switching the time constant, there is an effect of spotlighting due to excessive blinking. The detected DC signal is analog/digitally converted into a 6-bit digital signal corresponding to the level by the level comparator 28. This 6-bit signal is
The pulse length is controlled by passing through a monostable multivib break 29. This is to prevent the spotlight from flickering above the required amount due to level fluctuations. Furthermore,
The 6-bit signal is converted into a binary 3-bit signal by the decoder 30, and is input to the address line of ROMB:l which stores a spotlight to be described later. The decoder 30 is provided to avoid reducing the input lines from six trees to three trees.

The other composite signal (audio signal) output from the amplifier 25 is amplified by the buffer amplifier 32, and then filtered to 1. Components in the 25 Hz and 8 KHz regions are extracted. For example, a bass rhythm signal passes through a first bandpass filter 33a, and a cymbal rhythm signal passes through a second bandpass filter 33b. Since the audio signal (singing voice) generally has a frequency of 400 to IKHz, it does not pass through these bandpass filters 33a and 33b. Therefore, rhythmic components in the singing voice will be ignored.

This makes it possible to extract a relatively stable rhythm of a musical instrument in a pseudo manner. The passed rhythm signal component is
Mixed by Miking Amp 34. This mix allows both bass and treble rhythm signals to be mixed together. This mix signal passes through the rhythm detection section 35, and a pseudo rhythm signal of accompaniment music is generated. After the pulse length of this pseudo rhythm signal is controlled by a 1,1i stable multivibrator 36, it is counted by a counter 37. The purpose of controlling the pulse length is to prevent the counter from continuously counting due to repeated drum strikes, for example.

Spotlight with the output of this counter 37 It will be done.

The oscillator 39, the counter 40, and the latch 41 generate random signals to provide randomness to the lighting combinations of the spotlights. This is because if randomness is not provided, the audience etc. will be confused by the flashing pattern ΔI11 and lose interest. This random signal is input to the address line of the ROM 3 at the timing of the output of the rhythm signal counter 37 described above.

The slowest output of the counter 40 is input to the counter 42, which generates the timing and address signal for changing the lighting combination of the spotlights for a certain period of time in the fourth automatic mode, which will be described later. The output of this counter 42 is input to the ROM 31 (7) address line.

The output of the ROM 3 1 is transmitted to a switching circuit 49 via a photocoupler 48 . Sui Soching circuit 4
Reference numeral 9 switches the open power source (AC100) according to the control I/roll signal output from the light amount adjustment section 50, and outputs it to the spot light after adjusting the light amount. R
Connected to the OM3 1 are a first automatic mode switch 43, a third automatic mode switch 44, and a fourth automatic mode switch 45 for flashing setting. A fifth motoswitch 46 is for manual mode and is connected to an individual spotlight switch 47.

The power mute section 56 delays the output voltage from the power supply circuit 55 for about 5 seconds after the power switch 10 is turned on, and turns off all the spot lights (keeps them at -) until the voltage becomes stable.

Next, various modes will be explained.

The first automatic mode is to select whether the spotlight to be lit is 1 or more.
There are 6 lights, and the number of lights is determined by the sound level. The switching timing of the spotlight is short, and the switching occurs at the number of detected rhythms or 8 counts. Time constant switch 27
The level detection time constant of is small and corresponds to relatively small level fluctuations. To set the first 1-speed mode, the first automatic mode switch 43 may be turned on.

In the second automatic mode, the spotlight is turned on from 1 to
There are 6 pieces, and the number depends on the audio level.

The switching timing of the lighting combinations of the spotlights is long, and the rhythm number changes at 32 counts. The level sensing time constant is large and small level fluctuations are ignored. 3 when the second automatic motor switch 38 is turned on.
Pulses equivalent to two forces are now supplied to the latch 41. When the second automatic mode switch 38 is off, the latch 41 is supplied with eight pulses worth of pulses.

In the third automatic mode, the number of spotlights is 2 or 3 without biasing to the left or right. When the level is 0 to 4 (low) 2 lights 17,
When the level is between 5 and 6 (high), 3 lights will light up. That is, even if there is no audio signal ASI, two lights will light up, and conversely, even if a very loud singing voice is produced, three lights will not light up. The switching timing for spotlight alignment is short, and the rhythm number switches at 8 counts. The level detection time constant is small.

The fourth automatic mode is spotlight The number is 2 to 4 without being biased to the left or right.

Spotlight The replacement timing is constant (about 3 seconds).

The fifth mode is manual mode 1-, mode setting switch 4
Turn on 6. In this case, the individual spotlight switches 47 can be used to turn on or off the individual spotlights at all times.

In this embodiment, the floor lighting section 500 (see FIG. 2) is a fixed lighting system, and the light amount adjustment section 50 (see FIG. 3) is a manual type. good.

Further, although a video disc is used as the recording medium in this embodiment, it is of course applicable to a karaoke apparatus that uses only audio signals.

Furthermore, the rhythm of the singing voice may be detected and used for dimming control.

〔Effect of the invention〕

As explained above, according to the present invention, after the power switch is turned on, the safety lamp illuminates the equipment of the karaoke system when there is no video information, and when the video information is output, the safety lamp is turned off. I have to. Therefore, users can start using the karaoke system in a safe condition,
The lights go out just before the song starts. Therefore, it is possible to ensure both safety and performance effects.

[Brief explanation of drawings]

Fig. 1 is a diagram explaining the principle of the present invention, Fig. 2 is a block diagram of an embodiment of the invention, Fig. 3 is a block diagram of a controller of an embodiment of the invention, and Fig. 4 is an external appearance of an embodiment of the invention. FIG. 801... Recording medium (video disc) 802...
Playback device 802a...Power switch 803...Microphone 806--Dimmer control section 809...Spotlight 809a...Safety lamp 8 1, 0...Speaker 100...Existing karaoke system 200... Illumination light section 300... Subinono section 4 0 0... Monitor section 500 - Floor lighting section 600... Controller I/Roller 1 ASI, AS2, A3B Audio signal VS1. ,VS2...Video signal

Claims (1)

[Scope of Claims] A lighting device in an audio-visual playback device that displays the video information out of the video information and music information recorded on a recording medium, and superimposes a microphone source on the music information and outputs the same, comprising: a power source; 1. A lighting device for an audio-video playback device, comprising a lamp that is turned on when the video information is not present after a switch is turned on, and is turned off when the video information is detected.