JPS6338787B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention inputs an audio signal from a video playback device such as a video disc player to an audio playback device, which is a so-called karaoke device, and plays back accompaniment sounds etc. on the audio playback device, and reproduces lyrics and music. Images such as signs and scenes are related to a video/audio playback device for playing back on a television.

An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes an audio reproducing apparatus such as a commercial audio reproducing apparatus called a karaoke apparatus or an 8-truck car stereo. A cartridge insertion slot 2 is formed at one end of the audio playback device 1, and facing this slot 2, a magnetic head 3 for 8-track monaural, a magnetic head 4 for 4-track stereo, and an end sensor 5 are provided. There is.

The magnetic heads 3, 4 are coupled to a mixing circuit 8 via amplifiers 6, 7, a microphone 9 is also coupled to the mixing circuit 8 via an amplifier 10, and the mixing circuit 8 is coupled via an amplifier 11 to a speaker 12. has been done. The end sensor 5 is also coupled to a stop circuit 13. Further, this stop circuit 13 is coupled with a coin control section 32 which outputs an audio signal when a coin is inserted and counts down and stops the audio signal at the end of a song or time-up.

Next, reference numeral 14 denotes a video disc player as a video playback device, and this player 14 has a video disc insertion slot 15 opened therein, and a video terminal 1 connected to a video circuit 16 inside.
7. Audio terminal 19 coupled to audio circuit 18; Muting terminal 21 coupled to Muting circuit 20; +B power supply terminal (+B);
A ground terminal 22 is provided respectively. The video terminal 17 is coupled to a television 23.

Reference numeral 24 denotes an adapter, and the external dimensions of this adapter 24 are the same as those of a known audio cartridge. The input side of this adapter 24 includes an audio terminal 25, a muting terminal 26, and a +
A B power terminal (+B) and a ground terminal 27 are provided, respectively, and are connected to the audio terminal 19, the muting circuit 21, the +B power terminal (+B), and the ground terminal 22 by a cable 28. An audio terminal 25 inside this adapter 24 is connected to a magnetic head drive amplifier circuit 31 via a buffer circuit 29 and an equalizer circuit 30, and furthermore, magnetic heads 33 and 34 are connected to an amplifying circuit 31 for driving a magnetic head through a buffer circuit 29 and an equalizer circuit 30. It is connected to the. The muting terminal 26 is connected to a termination control circuit 36 comprising a one-shot multivibrator 35, a relay, a photocoupler, etc.

Note that 37 is a stopper of the adapter 24, which is press-fitted into a recess 38 of the adapter 24 with a spring (not shown).

Next, the operation of the device according to the present invention will be explained.

Insert the adapter 24 into the cartridge insertion slot 2 of the audio reproduction device 1. Then, the magnetic heads 33 and 3, and 34 and 4 are magnetically coupled to each other.

Here, insert a karaoke disc into the video disc player 14, and insert the karaoke disc into the video disc player 14.
Insert a predetermined coin into the coin control unit 32 of
Turn on the switch. Then, a video signal from the video circuit 16 is sent to the television 23, and the lyrics, musical notes, scenes of the song, etc. are displayed. On the other hand, the audio signal from the audio circuit 18 enters the buffer circuit 29 in the adapter 24 via the cable 28, passes through the equalizer circuit 30 that compensates for the resonance characteristics of the magnetic head, and then passes through the head drive amplifier circuit 31.
The power is amplified as necessary and sent to magnetic heads 33 and 34. Since the magnetic heads 33 and 34 are electromagnetically coupled to the 8-track magnetic heads 3 and 4 of the audio reproducing device 1, the audio signals detected by the magnetic heads 3 and 4 are passed through the amplifiers 6 and 7 to the mixing circuit 8. The signals are mixed by the amplifier 11, the power is amplified by the amplifier 11, and the accompaniment sound is emitted from the speaker 12.

Here, when the person holding the microphone 9 sings while watching the lyrics, music notes, and scenes on the television 23 and listening to the accompaniment from the speaker 12, the audio signal from the microphone 9 is transmitted to the amplifier 10.
The signal is sent to the mixing circuit 8 via the audio accompaniment, and is emitted from the speaker 12 along with the accompaniment sound.

When the performance of one song or a predetermined number of songs is finished, the end signal from the muting circuit 20 is sent to the adapter 2.
Enter 4, one shot multi vibrator 35
Then, the termination control circuit 36 is activated. Then, the end sensors 5, 5 are short-circuited, and the stop circuit 13
is activated, the coin control unit 32 is turned down, the play is stopped, and the game waits for the next play.

In the embodiments described above, the video disc player is used as the video playback device 14.
However, the present invention is not limited to these, and a videotape player can also be used.

Since the present invention is constructed as described above, by connecting a video playback device such as a video disk player and a television to an existing so-called karaoke device or 8-track car stereo, etc., the functions of the audio karaoke device, such as coin exchange, can be realized. It is possible to use the input, memory, etc. as they are to create a video karaoke device. Moreover, since the video signal is played back, you can sing while looking at the lyrics or the scene, which brings out even better effects than karaoke.

[Brief explanation of drawings]

The figure is a block diagram showing an embodiment of a video/audio playback device according to the present invention. 1...Audio playback device, 3, 4, 33, 3
4... Magnetic head, 5... End sensor, 8...
...Mixing circuit, 9...Microphone, 12...Speaker, 14...Video playback device, 23...Television, 24...Cartridge, 28...Cable,
32...Coin control unit.

Claims (1)

[Scope of Claims] 1. In a device that outputs an accompaniment audio signal by inserting an adapter into a cartridge insertion slot of an audio playback device, and outputs the accompaniment audio signal mixed with an audio signal from a microphone, A video karaoke device, characterized in that an audio circuit of a playback device is coupled to the adapter by a cable, and a video circuit of the video playback device is coupled to a television by a cable. 2. The video karaoke device according to claim 1, wherein the video playback device is a video disc player. 3. The video karaoke device according to claim 1, wherein the video playback device comprises a videotape player. 4. The video adapter according to claim 1, 2 or 3, comprises an equalizer circuit for compensating an audio signal input from a video playback device, an amplifier circuit for driving a head, and a magnetic head. Audio playback device. 5. In a device for inserting an adapter into a cartridge insertion slot of an audio playback device and outputting an accompaniment audio signal and mixing and outputting an audio signal from a microphone with the accompaniment audio signal, the accompaniment audio signal and a video disc playback device that simultaneously records video signals related thereto; a television is coupled to the video circuit of the video disc playback device; the adapter is connected to an audio circuit of the video disc playback device; 1. A video/audio playback device comprising a coin control unit that outputs an audio signal when a coin is inserted into the audio playback device.