JP2019128410A - Karaoke device switching unit - Google Patents

Abstract

[Problem] To provide a karaoke device switching device that allows customers who come to a karaoke store to easily switch between four types of source devices and sink devices, thereby allowing them to use music data other than that stored in the karaoke commander and to easily enjoy content other than karaoke. [Solution] When the singer presses any of the four-link push switches 1 of the karaoke device switching device A, the selected source device is connected to the sink device C and the amplifier 23, allowing them to use music data that can be obtained from other source devices in addition to the music data stored in the karaoke commander 41, and to easily enjoy content other than karaoke (video games, watching movies, watching TV). [Selected Figure] Figure 1

Description

  The present invention relates to a karaoke device switching device.

In a karaoke system installed in a karaoke room, a display and an audio device are usually connected to a karaoke commander with a plurality of cables so that customers who come to the store can enjoy karaoke. In addition, when it is going to use a display and an audio apparatus for the purpose (a video game, movie appreciation, trial listening of a television) other than a karaoke, it is necessary to reconnect a several cable.
Patent Document 1 and Patent Document 2 describe a karaoke system having image switching means.

Japanese Patent Application Publication No. 10-282975 Japanese Patent Application Publication No. 10-282975

In these karaoke systems, it is possible to switch between the image of the background image storage means such as the LD of the karaoke apparatus and the image of the external image storage device such as the video CD player by the screen switching means.
However, it is not easy to use because the screen can be switched in by inserting coins or using a remote control (also functions as a commander for music selection etc.), and it is coming out from the singing video currently displayed on the monitor screen or from the speaker. At first glance, the accompaniment sound is unknown.
Recently, there is a need to acquire music data on the Internet via a mobile terminal or a personal computer and sing songs that are not in the karaoke commander.

  The object of the present invention is that a customer who visits a karaoke store can easily switch the connection between four types of source devices (karaoke commander, optical disc player, personal computer, portable terminal) and sink device (monitor). While providing music data other than the music data stored in the karaoke commander, the present invention is to provide a karaoke device switching device capable of easily enjoying contents other than karaoke.

[About claim 1]
The karaoke equipment switching device includes a four-linked push switch, an audio device, a sink device as a display, a microphone, a microphone receiver, first to fourth source devices, a selector, and an input HDMI cable. , HDMI cable on the output side, RCA cable on the input side, and RCA cable on the output side (note that HDMI is a registered trademark).

  The four interlocking push type switch is a single throw type, and when any one of the first to fourth push buttons is pushed in (the electrical contact is closed), the other push buttons are in the initial positions. It is a structure which returns to (an electrical contact is an open state), and, thereby, each electrical contact is opened and closed.

The acoustic device comprises a speaker group and an amplifier having a line input terminal.
The sink device is a display having an HDMI input terminal and capable of displaying moving pictures and still pictures.

  The microphone converts the voice uttered by the singer into an electrical signal according to the sound emitted from the speaker group and the image displayed on the display of the sink device, and superimposes the electrical signal on infrared rays or radio waves.

  The microphone receiver demodulates and amplifies an electric signal superimposed on an infrared ray or a radio wave (sent from a microphone), and outputs two amplified audio signals.

  The first source device has a storage device for storing a large number of music data distributed from the server via the network, and an HDMI output terminal for outputting a digital video signal for playing music and an audio output from the microphone receiver. A karaoke commander having a line output terminal for outputting an analog sound signal in which a signal (one system side) is superimposed on an accompaniment sound signal.

The second source device is a personal computer having an HDMI output terminal for outputting a digital video signal and a line output terminal for outputting an analog audio signal.
The third source device is an optical disc player having an HDMI output terminal for outputting a digital video signal and a line output terminal for outputting an analog audio signal.

  The fourth source device is an HDMI converter that converts the Lightning output of the mobile terminal or the MHL output of the mobile terminal into an HDMI output and an analog output, and outputs an HDMI audio output terminal that outputs a digital video signal and an analog audio signal And a line output terminal.

  The selector includes an external audio input terminal, an audio mixer, a first HDMI input terminal and a first line input terminal, a second HDMI input terminal and a second line input terminal, a third HDMI input terminal, A third line input terminal, a fourth HDMI input terminal and a fourth line input terminal, an HDMI output terminal and a line output terminal, and an input switching device having a micro computer for controlling the switching means.

  The external audio input terminal receives an audio signal (dual system side) output from the microphone receiver. The audio mixer adjusts the level of the audio signal input from the external audio input terminal and outputs the adjusted audio signal from the output unit.

  A digital video signal output from the first source device that is a karaoke commander is input to the first HDMI input terminal. An analog acoustic signal output from the first source device, which is a karaoke commander, is input to the first line input terminal.

  A digital video signal output from a second source device, which is a personal computer, is input to the second HDMI input terminal. An analog audio signal output from a second source device, which is a personal computer, is input to the second line input terminal.

  The third HDMI input terminal receives a digital video signal output from a third source device, which is an optical disc player. An analog sound signal output from a third source device, which is an optical disc player, is input to the third line input terminal.

  The digital video signal of the portable terminal output from the fourth source device that is an HDMI converter is input to the fourth HDMI input terminal. The analog audio signal of the mobile terminal output from the fourth source device that is an HDMI converter is input to the fourth line input terminal.

The selector is electrically connected to each contact of the four interlocking push-type switch by a connection cable.
At the position where the first push button of the four interlocking push switch is pushed in, the first HDMI input terminal of the selector is electrically connected to the HDMI output terminal of the selector, and the first line input terminal of the selector is connected to the selector line. The microcomputer of the input switching device controls the switching means so as to be electrically connected to the output terminal.

  At the position where the second push button of the four interlocking push switch is pushed in, the second HDMI input terminal of the selector is electrically connected to the HDMI output terminal of the selector, and the second line input terminal of the selector and the audio mixer The output unit is electrically connected to the line output terminal of the selector (a signal obtained by superposing the analog audio signal output from the personal computer input to the second line input terminal and the audio signal adjusted by the audio mixer is Control the switching means as output to the line output terminal).

  At the position where the third push button of the four interlocking push-type switch is pushed, the third HDMI input terminal of the selector is electrically connected to the HDMI output terminal of the selector, and the third line input terminal of the selector and the audio mixer The output unit is electrically connected to the line output terminal of the selector (a signal obtained by superposing the analog audio signal output from the optical disc player input to the third line input terminal and the audio signal adjusted by the audio mixer Is output to the line output terminal).

  At the position where the fourth push button of the four interlocking push-type switch is pushed, the fourth HDMI input terminal of the selector is electrically connected to the HDMI output terminal of the selector, and the fourth line input terminal of the selector and the audio mixer The output unit is electrically connected to the line output terminal of the selector (a signal obtained by superposing the analog audio signal input to the fourth line input terminal and the audio signal adjusted by the audio mixer to the line output terminal Control the switching means as it is output).

The four input-side HDMI cables connect the HDMI output terminals of the first to fourth source devices to the first to fourth HDMI input terminals of the selector, respectively.
The HDMI cable on the output side is for connecting the HDMI output terminal of the selector and the HDMI input terminal of the sink device as a display.

The four input RCA cables connect the line output terminals of the first to fourth source devices to the first to fourth line input terminals of the selector, respectively.
The RCA cable on the output side is for connecting the line output terminal of the selector and the line input terminal of the amplifier.

The karaoke machine switching device according to claim 1 has the following advantages.
If the singer or companion who visits the karaoke shop presses and presses any of the first to fourth push buttons of the four interlocking push-type switch, four types of source devices (Karaoke Commander, optical disc player, personal computer) , Portable terminal) can be switched easily.

  The four interlocking push type switch is a single throw type, and when any one of the first to fourth push buttons is pushed in (the electrical contacts are closed), the other push buttons are moved to the initial positions (electrical contacts). Therefore, the singer and accompanying person can now identify which source device (karaoke commander, optical disc player, It can be easily determined whether a personal computer or a portable terminal can be used.

(4) By switching the interlocking push switch, source devices such as an optical disk player, a personal computer, or a portable terminal other than the karaoke commander are electrically connected to the audio device and the sink device (display) without changing the cable. Is done.
For this reason, singers and companions who come to the karaoke shop bring in a private optical disc containing accompaniment data of the music and play them on the optical disc player, or play music from the Internet using a built-in personal computer or a private portable terminal. Accompaniment data can be captured and used. In addition, content other than karaoke (video games, watching movies, listening to television) can be easily enjoyed.

  Even when using a source device other than the karaoke commander, the same microphone can be used for singing, so the karaoke device switching device is easy to use. In addition, since the level of the audio signal of the microphone receiver input from the external audio input terminal can be adjusted by the audio mixer, it is possible to sing comfortably.

  The microphone receiver outputs two audio signals and the audio signal of one system is input to the karaoke commander, so the scoring function of the karaoke commander is not impaired.

  Connected to the first to fourth HDMI input terminals of the selector connected to each HDMI output terminal of each source device (karaoke commander, optical disc player, personal computer, portable terminal) and to the HDMI input terminal of the sink device (display) In addition to the switching means switching the electrical connection with the HDMI output terminal of the selector completely, the first to fourth line input terminals of the selector connected to the line output terminal of each source device, and the line input of the amplifier Since the switching means completely switches the electrical connection with the terminal, it is possible to prevent interference between the source devices when the source devices are switched by pressing any one of the four interlocking push-type switches.

[Claim 2]
The karaoke equipment switching device includes a four-linked push switch, an acoustic device, first and second sink devices that are first and second displays, a microphone, a microphone receiver, and first to fourth sources. It includes equipment, a selector, an HDMI cable on the input side, an HDMI cable on the output side, an RCA cable on the input side, and an RCA cable on the output side.

  The four interlocking push type switch is a single throw type, and when any one of the first to fourth push buttons is pushed in (the electrical contact is closed), the other push buttons are in the initial positions. It is a structure which returns to (an electrical contact is an open state), and, thereby, each electrical contact is opened and closed.

The acoustic device comprises a speaker group and an amplifier having a line input terminal.
The first sink device is a first display that has an HDMI input terminal and can display moving images and still images.
The second sink device is a second display having an HDMI input terminal and capable of displaying a moving image or a still image.

  The microphone converts into an electrical signal an audio uttered by the singer in accordance with the sound emitted from the speaker group and the image displayed on the first display of the first sink device or the second display of the second sink device. While converting, this electric signal is superimposed on infrared rays or radio waves.

  The microphone receiver demodulates and amplifies an electric signal superimposed on an infrared ray or a radio wave (sent from a microphone), and outputs two amplified audio signals.

  The first source device has a storage device for storing a large number of music data distributed from the server via the network, and an HDMI output terminal for outputting a digital video signal for playing music and an audio output from the microphone receiver. A karaoke commander having a line output terminal for outputting an analog sound signal in which a signal (one system side) is superimposed on an accompaniment sound signal.

The second source device is a personal computer having an HDMI output terminal for outputting a digital video signal and a line output terminal for outputting an analog audio signal.
The third source device is an optical disc player having an HDMI output terminal for outputting a digital video signal and a line output terminal for outputting an analog audio signal.

  The fourth source device is an HDMI converter that converts the Lightning output of the mobile terminal or the MHL output of the mobile terminal into an HDMI output and an analog output, and outputs an HDMI audio output terminal that outputs a digital video signal and an analog audio signal And a line output terminal.

  The selector includes an external audio input terminal, an audio mixer, a first HDMI input terminal and a first line input terminal, a second HDMI input terminal and a second line input terminal, a third HDMI input terminal, An input switch having a microcomputer which controls a third line input terminal, a fourth HDMI input terminal and a fourth line input terminal, first and second HDMI output terminals, a line output terminal, and switching means And an apparatus.

An audio signal (two-system side) output from the microphone receiver is input to the external audio input terminal.
In the case of claim 2, the audio mixer adjusts not only the level but also the tone of the audio signal input from the external audio input terminal, and outputs the adjusted audio signal from the output unit.

  A digital video signal output from the first source device that is a karaoke commander is input to the first HDMI input terminal. An analog acoustic signal output from the first source device, which is a karaoke commander, is input to the first line input terminal.

  A digital video signal output from a second source device, which is a personal computer, is input to the second HDMI input terminal. An analog audio signal output from a second source device, which is a personal computer, is input to the second line input terminal.

  The third HDMI input terminal receives a digital video signal output from a third source device, which is an optical disc player. An analog sound signal output from a third source device, which is an optical disc player, is input to the third line input terminal.

  The digital video signal of the portable terminal output from the fourth source device that is an HDMI converter is input to the fourth HDMI input terminal. The analog audio signal of the mobile terminal output from the fourth source device that is an HDMI converter is input to the fourth line input terminal.

The selector is electrically connected to each contact of the four interlocking push-type switch by a connection cable.
At the position where the first push button of the four interlocking push switch is pushed in, the first HDMI input terminal of the selector is electrically connected to the HDMI output terminal of the selector, and the first line input terminal of the selector is connected to the selector line. The microcomputer of the input switching device controls the switching means so as to be electrically connected to the output terminal.

  At the position where the second push button of the four interlocking push switch is pushed in, the second HDMI input terminal of the selector is electrically connected to the HDMI output terminal of the selector, and the second line input terminal of the selector and the audio mixer The output unit is electrically connected to the line output terminal of the selector (a signal obtained by superposing the analog audio signal output from the personal computer input to the second line input terminal and the audio signal adjusted by the audio mixer is Control the switching means as output to the line output terminal).

  At the position where the third push button of the four interlocking push-type switch is pushed, the third HDMI input terminal of the selector is electrically connected to the HDMI output terminal of the selector, and the third line input terminal of the selector and the audio mixer The output unit is electrically connected to the line output terminal of the selector (a signal obtained by superposing the analog audio signal output from the optical disc player input to the third line input terminal and the audio signal adjusted by the audio mixer Is output to the line output terminal).

  At the position where the fourth push button of the four interlocking push-type switch is pushed, the fourth HDMI input terminal of the selector is electrically connected to the HDMI output terminal of the selector, and the fourth line input terminal of the selector and the audio mixer The output unit is electrically connected to the line output terminal of the selector (a signal obtained by superposing the analog audio signal input to the fourth line input terminal and the audio signal adjusted by the audio mixer to the line output terminal Control the switching means as it is output).

The four input-side HDMI cables connect the HDMI output terminals of the first to fourth source devices to the first to fourth HDMI input terminals of the selector, respectively.
The two HDMI cables on the output side connect the first and second HDMI output terminals of the selector to the HDMI input terminals of the first and second sink devices that are the first and second displays. It is.

The four input RCA cables connect the line output terminals of the first to fourth source devices to the first to fourth line input terminals of the selector, respectively.
The RCA cable on the output side is for connecting the line output terminal of the selector and the line input terminal of the amplifier.

The karaoke device switching device of claim 2 has the following advantages.
If the singer or companion who visits the karaoke shop presses and presses any of the first to fourth push buttons of the four interlocking push-type switch, four types of source devices (Karaoke Commander, optical disc player, personal computer) , Portable terminal) can be switched easily.

  The four interlocking push-type switches are single throw type, and when one of the first to fourth push buttons is pressed (the electric contact is closed), the other push button is in the initial position (electric contact Therefore, the singer and accompanying person can now identify which source device (karaoke commander, optical disc player, It can be easily determined whether a personal computer or a portable terminal can be used.

The source device such as an optical disk player, a personal computer, or a portable terminal, in addition to the karaoke commander, is connected to the audio device and the first and second sink devices (the first and second sink devices). Display, second display).
For this reason, singers and companions who come to the karaoke shop bring in a private optical disc containing accompaniment data of the music and play them on the optical disc player, or play music from the Internet using a built-in personal computer or a private portable terminal. Accompaniment data can be captured and used. In addition, content other than karaoke (video games, watching movies, listening to television) can be easily enjoyed.

  Even when using a source device other than the karaoke commander, the same microphone can be used for singing, so the karaoke device switching device is easy to use. In addition, since the level and tone of the audio signal of the microphone receiver input from the external audio input terminal can be adjusted by the audio mixer, it is possible to sing comfortably.

  The microphone receiver outputs two audio signals and the audio signal of one system is input to the karaoke commander, so the scoring function of the karaoke commander is not impaired.

  Switching means switches electrical connection between the first to fourth HDMI input terminals of the selector connected to the HDMI output terminals of each source device (karaoke commander, optical disc player, personal computer, portable terminal) and the HDMI output terminal of the selector. In addition to complete switching, the switching means completely switches the electrical connection between the first to fourth line input terminals of the selector connected to the line output terminal of each source device and the line input terminal of the amplifier. Therefore, when a source device is switched by pressing any one of the four interlocking push switches, the interference between the source devices can be prevented.

  Since the digital video signal output from the selector is divided into two by the HDMI splitter and output to the first HDMI output terminal and the second HDMI output terminal, the first and second displays (first and second displays (first and second displays) 2 sink devices) can display the same moving image or still image. In addition, the first display (small) can be made to be close to the singer and the singer can be made to display the second display (large) to be made to accompany the person.

It is a block diagram of the karaoke equipment switching device concerning Example 1 of the present invention. It is a block diagram of the karaoke equipment switching device concerning Example 2 of the present invention. It is explanatory drawing of the HDMI input * output terminal and HDMI cable which are used for the karaoke apparatus switching apparatus of Example 1, 2. It is explanatory drawing of the line input * output terminal and RCA cable which are used for the karaoke apparatus switching apparatus of Example 1,2.

  The karaoke device switching device is connected to first to fourth HDMI input terminals and first to fourth line input terminals for connecting four types of source devices, an HDMI output terminal for connecting to a monitor, and an amplifier A selector having a line output terminal, and a four interlocking push switch electrically connected to the selector by a connection cable. When one of the push buttons is depressed, the microcomputer of the input switching device controls the switching means. Electrically connect the corresponding HDMI input terminal and line input terminal to the HDMI output terminal and line output terminal.

When a singer or companion coming to a karaoke store presses any of the push buttons of the four-link push switch, the selected source device is connected to the sink device (monitor) and amplifier without changing the cable. .
Therefore, music data that can be acquired from other source devices (optical disk player, personal computer, portable terminal) can be used besides the karaoke commander. Also, you can easily enjoy content other than karaoke.

A karaoke equipment switching device A (corresponding to claim 1) according to Embodiment 1 of the present invention will be described with reference to FIG.
The karaoke equipment switching device A shown in FIG. 1 includes a four-linked push switch 1, an acoustic device 2, a sink device C, a microphone M, a microphone receiver 3, and first to fourth source devices 41 to 44. , Selector 5, HDMI cables 61 to 64 on the input side, HDMI cables 65 on the output side, RCA cables 71 to 74 on the input side, and an RCA cable 75 on the output side.

  The four interlocking push type switch 1 is a single-pole single-throw unit that opens and closes each electrical contact by returning any other push button to the initial position by pushing any one of the first to fourth push buttons 11-14. It is an interlocking type push button switch.

  The acoustic device 2 includes a speaker 21,... 21 group and an amplifier 23 having a line input terminal 22 (RCA terminal R / L).

  The sink device C is a large plasma display having an HDMI input terminal c and capable of displaying moving images and still images.

The microphone M is a condenser microphone of an infrared transmission method in which an infrared light emitting unit is provided on the grip g.
This microphone M converts the sound uttered by the singer into an electrical signal in accordance with the sound emitted from the speakers 21... 21 group and the image displayed on the plasma display, and superimposes the electrical signal on the infrared ray m to mic Make a call to the receiver 3.

  The microphone receiver 3 demodulates and amplifies the electrical signal superimposed on the infrared ray m transmitted from the microphone M, and outputs (two systems) the amplified audio signal from the line output terminals 31 and 32.

The first source device 41, which is a karaoke commander, has an HDD (storage device) for storing a large number of music data distributed from the server via the network.
The first source device 41 has an HDMI output terminal 41a that outputs a digital video signal for music performance, and a line output that outputs an analog audio signal in which an audio signal output from the microphone receiver 3 is superimposed on an accompaniment audio signal. It has a terminal 41b and a line input terminal 41c. The line input terminal 41 c of the first source device 41 is connected to the line output terminal 31 of the microphone receiver 3 by an RCA cable.

The second source device 42, which is a personal computer, has an HDMI output terminal 42a that outputs a digital video signal, and a line output terminal 42b that outputs an analog audio signal.
This personal computer is a permanent disk top personal computer in the karaoke room of the karaoke shop, and can be connected to the Internet.

The third source device 43, which is a Blu-ray Disc (registered trademark) player, is a playback-only video device that can play back BD-Video and DVD-Video. It is possible to play BD-Video and DVD-Video brought into the room.
The third source device 43 has an HDMI output terminal 43a for outputting a digital video signal, and a line output terminal 43b for outputting an analog audio signal.

The fourth source device 44, which is an HDMI converter, converts the Lightning output (iPhone system) or MHL output (Android system) input from the input terminal 44c into an HDMI output, and outputs a digital video signal. And a line output terminal 44b for outputting an analog acoustic signal.
The connection port k (Lightning type, MHL type) of the portable terminal K and the input terminal 44c of the source device 44 are connected by a connection cable (two types).

  Further, when the notebook computer brought into the karaoke room by a singer or a companion has an HDMI output terminal and a line output terminal, it is not an HDMI converter (fourth source device 44). The HDMI cable 64 and the RCA cable 74 are directly connected to the HDMI output terminal and the line output terminal of the notebook computer.

  The selector 5 includes an external audio input terminal 510, an audio mixer 511, a first HDMI input terminal 521 and a first line input terminal 522, a second HDMI input terminal 531 and a second line input terminal 532, Control the third HDMI input terminal 541 and the third line input terminal 542, the fourth HDMI input terminal 551 and the fourth line input terminal 552, the HDMI output terminal 561 and the line output terminal 562, and the switching means 571 And an input switching device 57 having a microcomputer 570.

The first to fourth HDMI input terminals 521, 531, 541, 551 and the HDMI output terminal 561 are the 19-pin standard type type A shown below (see FIG. 3).
1 # TMDS Data2 +
2 # TMDS Data2 Shield 3 # TMDS Data2 +
4 # TMDS Data1 +
5 # TMDS Data 1 Shield 6 # TMDS Data 1-
7 # TMDS Data0 +
8 # TMDS Data 0 Shield 9 # TMDS Data 0-
10 # TMDS Clock +
11 # TMDS Clock Shield 12 # TMDS Clock-
13 # CEC
14 # Utility, HEAC +
15 # SCL
16 # SDA
17 # DDC, CEC ground, HEAC shield 18 # + 5V
19 # HPD, HEAC-

The first to fourth line input terminals 522, 532, 542, 552 and the line output terminal 562 are RCA pin terminals of the right channel R / left channel L of the acoustic signal.
The external audio input terminal 510 is also a similar RCA pin terminal (see FIG. 4).

An audio signal output (two channels) from the line output terminal 32 of the microphone receiver 3 is input to the external audio input terminal 510 via the RCA cable 70.
The audio mixer 511 adjusts the level of the audio signal input from the external audio input terminal 510, and outputs the adjusted audio signal from the output unit 512.

The HDMI cable 61 is connected to the first HDMI input terminal 521, and a digital video signal output from the first source device 41, which is a karaoke commander, is input.
The RCA cable 71 is connected to the first line input terminal 522, and an audio signal output from the first source device 41, which is a karaoke commander, is input.

The HDMI cable 62 is connected to the second HDMI input terminal 531, and a digital video signal output from the second source device 42, which is a personal computer, is input.
The RCA cable 72 is connected to the second line input terminal 532, and an analog acoustic signal output from the second source device 42 which is a personal computer is input.

The HDMI cable 63 is connected to the third HDMI input terminal 541, and a digital video signal output from the third source device 43 which is an optical disk player is input.
An RCA cable 73 is connected to the third line input terminal 542, and an analog acoustic signal output from the third source device 43, which is an optical disk player, is input.

The HDMI cable 64 is connected to the fourth HDMI input terminal 551, and a digital video signal output from the fourth source device 44, which is an HDMI converter, is input.
The RCA cable 74 is connected to the fourth line input terminal 552, and an analog audio signal output from the fourth source device 44, which is an HDMI converter, is input.

The I / O interface 572 of the selector 5 is electrically connected to each contact of the four interlocking push-type switch 1 by the connection cable 50, and converts the open / close state of each contact into a Lo / Hi output.
The micro computer 570 grasps the state of the contact related to the first to fourth push buttons 11 to 14 based on the Lo / Hi output for each contact output from the I / O interface 572, and the switching means 571 as described below. To control.

  In the present embodiment, the switching means 571 is an electronic switch with 19 contacts and 4 contacts, which uses a semiconductor such as a transistor or FET, and switches all connections of the 19 pin of the HDMI input / output terminal. In addition to electronic switches, mechanical switches such as a plurality of relays and rotary switches (motor drive, solenoid drive) may be used.

  At the position where the first push button 11 of the four interlocking push switch 1 is pushed in, the # 1 pin to the # 19 pin of the first HDMI input terminal 521 of the selector 5 are the # 1 pin of the HDMI output terminal 561 of the selector 5. Switching means 571 is electrically connected to the # 19 pin, and the L • R pin of the first line input terminal 522 of the selector 5 is electrically connected to the L • R pin of the line output terminal 562 of the selector 5 Control.

  At the position where the second push button 12 of the four interlocking push type switch 1 is pushed in, the # 1 pin to # 19 pin of the second HDMI input terminal 531 of the selector 5 are the # 1 pin of the HDMI output terminal 561 of the selector 5 to. The acoustic signal of the personal computer 42 electrically connected to the # 19 pin and output from the second line input terminal 532 and the audio signal of the adjusted microphone M output from the output unit 512 of the audio mixer 511 are input The switching means 571 is controlled so that the output side of the signal superimposing circuit j1 input to the side is electrically connected to the L / R pins of the line output terminal 562 of the selector 5. As a result, a signal in which the sound signal of the second source device 42 which is a personal computer and the adjusted sound signal of the microphone M are superimposed is output from the line output terminal 562 of the selector 5.

  At the position where the third push button 13 of the four interlocking push switch 1 is pushed in, the # 1 pin to the # 19 pin of the third HDMI input terminal 541 of the selector 5 are the # 1 pin of the HDMI output terminal 561 of the selector 5. The audio signal of the third source device 43 that is a Blu-ray disc player electrically connected to the # 19 pin and output from the third line input terminal 542, and the adjustment output from the output unit 512 of the audio mixer 511 The switching means 571 is controlled so that the output side of the signal superposition circuit j2 to which the voice signal of the finished microphone M is input to the input side is electrically connected to the L · R pin of the line output terminal 562 of the selector 5. As a result, a signal in which the audio signal of the third source device 43 which is a Blu-ray Disc player and the adjusted audio signal of the microphone M are superimposed is output from the line output terminal 562 of the selector 5.

  At the position where the third push button 14 of the four interlocking push switch 1 is pushed in, the # 1 pin to the # 19 pin of the fourth HDMI input terminal 551 of the selector 5 are the # 1 pin of the HDMI output terminal 561 of the selector 5. The audio signal of the portable terminal K electrically connected to the # 19 pin and output from the fourth line input terminal 552 and the audio signal of the adjusted microphone M output from the output unit 512 of the audio mixer 511 are The switching means 571 is controlled so that the output side of the signal superposition circuit j3 input to the input side is electrically connected to the L · R pin of the line output terminal 562 of the selector 5. As a result, a signal in which the acoustic signal of the mobile terminal K and the adjusted audio signal of the microphone M are superimposed is output from the line output terminal 562 of the selector 5.

  The HDMI cable 61 on the input side electrically connects the HDMI output terminal 41a from which the first source device 41, which is a karaoke commander, outputs a digital video signal for music performance, and the first HDMI input terminal 521 of the selector 5. It is a cable.

  The HDMI cable 62 on the input side is a cable that electrically connects the HDMI output terminal 42 a from which the second source device 42, which is a personal computer, outputs a digital video signal, to the second HDMI input terminal 531 of the selector 5.

  The HDMI cable 63 on the input side is a cable that electrically connects the HDMI output terminal 43 a from which the third source device 43, which is a Blu-ray Disc player, outputs a digital video signal, to the third HDMI input terminal 541 of the selector 5. is there.

  The HDMI cable 64 on the input side electrically connects the HDMI output terminal 44 a to which the fourth source device 44, which is an HDMI converter, outputs the digital video signal of the portable terminal K, and the fourth HDMI input terminal 551 of the selector 5 Cable.

  The HDMI cable 65 on the output side is a cable that electrically connects the HDMI output terminal 561 of the selector 5 and the HDMI input terminal c of the sink device C that is a large plasma display.

  The RCA cable 71 on the input side includes a line output terminal 41b of the first source device 41 that outputs an analog acoustic signal obtained by superimposing an audio signal output from the microphone receiver 3 on an acoustic signal for accompaniment, and a first output of the selector 5. It is a cable electrically connected to the line input terminal 522.

  The RCA cable 72 on the input side is a cable for electrically connecting the line output terminal 42 b from which the second source device 42, which is a personal computer, outputs an analog sound signal, to the second line input terminal 532 of the selector 5.

  The RCA cable 73 on the input side is a cable that electrically connects the line output terminal 43 b from which the third source device 43, which is a Blu-ray disc player, outputs an analog audio signal, to the third line input terminal 542 of the selector 5. is there.

  The RCA cable 74 on the input side is a cable that electrically connects the line output terminal 44 b from which the fourth source device 44, which is an HDMI converter, outputs an analog audio signal, to the fourth line input terminal 552 of the selector 5. .

  The RCA cable 75 on the output side is a cable that electrically connects the line output terminal 562 of the selector 5 and the line input terminal 22 of the amplifier 23.

The karaoke machine switching device A according to the first embodiment has the following advantages.
If the singer or companion who visits the karaoke shop presses and presses any of the first to fourth pressing buttons of the four interlocking push-type switch 1, four types of source devices (specifically, karaoke) You can easily switch between the commander, Blu-ray Disc player, PC, and mobile device).

  The four interlocking push-type switch 1 is a single throw type, and when one of the first to fourth push buttons 11, 12, 13, 14 is pressed (the electric contact is closed), another push button is pressed. Is a structure that returns to the initial position (the electrical contact is in the open state), so it can be seen at a glance which singer or companion sees which push button is currently being pushed in. Can easily determine which source device is currently available.

By switching the 4 interlocking push type switch 1, without connecting the cable, Blu-ray Disc player, personal computer, or portable terminal other than the karaoke commander, the audio device 2 and the sink device C (large plasma display) Electrically connected to
For this reason, singers and companions who come to the karaoke shop bring in a private optical disc containing accompaniment data of the music and play them on the optical disc player, or use the provided personal computer or the private portable terminal K from the Internet Accompaniment data of music can be imported and used. In addition, contents other than karaoke (video games, movie watching, trial listening to television) can be enjoyed with great power and ease by the audio device 2 and the sink device C.

  Even when using a source device other than the karaoke commander, the same microphone M can be used for singing, so the karaoke device switching device A is easy to use. Since the level of the audio signal of the microphone receiver 3 input from the external audio input terminal 510 can be adjusted by the audio mixer 511, it is possible to sing comfortably.

  Since the audio signal output from the microphone receiver 3 is two systems and the audio signal on the one system side is input to the karaoke commander which is the first source device 41, the scoring function of the karaoke commander is not impaired.

  The first to fourth HDMI input terminals 521, 531, 541, 551 of the selector 5 connected to the HDMI output terminals of each source device (karaoke commander, optical disc player, personal computer, portable terminal), and the sink device C (large In addition to the switching means 571 completely switching the electrical connection with the HDMI output terminal 561 of the selector 5 connected to the HDMI input terminal c of the (type plasma display) by the HDMI cable 65, the line output terminal 41b of each source device , 42b, 43b, 44b, the switching means 571 completely switches the electrical connection between the first to fourth line input terminals 522, 532, 542, 552 of the selector and the line input terminal 22 of the amplifier 23 Therefore, press any one of the four interlocking push type switches 1 to operate the source machine. When switching, it can prevent interference between the source device.

A karaoke apparatus switching device B (corresponding to claim 2) according to a second embodiment of the present invention will be described based on FIG.
The karaoke equipment switching device B shown in FIG. 2 includes a four-linked push switch 1, an acoustic device 2, sink devices C and D, a microphone M, a microphone receiver 3, and first to fourth source devices 41 to 41. 44, the selector 5, the HDMI cables 61 to 64 on the input side, the HDMI cables 65 to 66 on the output side, the RCA cables 71 to 74 on the input side, and the RCA cable 75 on the output side.

The four interlocking push type switch 1 and the acoustic device 2 are the same as in the first embodiment.
The sink device C is the same as that of the first embodiment, and is a large plasma display having an HDMI input terminal c and capable of displaying moving images and still images. This sink device C is for the companion to see.

The sink device D is a small plasma display having an HDMI input terminal d and capable of displaying moving images and still images. This sink device D is for the singer to watch.
The microphone M, the microphone receiver 3, the first source device 41, the second source device 42, the second source device 42, the third source device 43, and the fourth source device 44 are the same as in the first embodiment. is there.

  The selector 5 includes an external audio input terminal 510, an audio mixer 511, a first HDMI input terminal 521 and a first line input terminal 522, a second HDMI input terminal 531 and a second line input terminal 532; Third HDMI input terminal 541 and third line input terminal 542, fourth HDMI input terminal 551 and fourth line input terminal 552, first HDMI output terminal 563 and second HDMI output terminal 564 And a line output terminal 562 and an input switching device 57 having a microcomputer 570 for controlling the switching means 571.

The first to fourth HDMI input terminals 521, 531, 541, 551 are the same 19-pin standard type (type A) as in the first embodiment.
The first HDMI output terminal 563 is a 19-pin standard type (type A), to which one output of the HDMI splitter 58 is added.
The second HDMI output terminal 564 is a 19-pin standard type type A, to which the other side output of the HDMI splitter 58 is added (see FIG. 3).

The first to fourth line input terminals 522, 532, 542, 552, the line output terminal 562, the external audio input terminal 510, and the external audio input terminal 510 are the same as in the first embodiment.
In the present embodiment, the audio mixer 511 adjusts the level and tone of the audio signal input from the external audio input terminal 510, and outputs the adjusted audio signal from the output unit 512.

The first HDMI input terminal 521, the second HDMI input terminal 531, the third HDMI input terminal 541, and the fourth HDMI input terminal 551 are respectively connected to the same HDMI cables 61, 62, 83, and 64 as in the first embodiment. Is connected.
The same RCA cables 71, 72, 73, 74 as in the first embodiment are connected to the first line input terminal 522, the second line input terminal 532, the third line input terminal 542, and the fourth line input terminal 552, respectively. Is connected.

The I / O interface 572 of the selector 5 is the same as that of the first embodiment, and is electrically connected to each contact of the four interlocking push switch 1 by the connection cable 50 to convert the open / closed state of each contact into a Lo / Hi output. .
The microcomputer 570 is the same as that of the first embodiment, and grasps the state of the contacts related to the first to fourth push buttons 11 to 14 based on the Lo / Hi output for each contact output from the I / O interface 572. Control the switching means 571 as follows.

  The switching means 571 is also an electronic switch with 19 contacts and 4 contacts using semiconductors such as transistors and FETs in this embodiment, and switches all connections of the 19 pin of the HDMI input / output terminal. In addition to electronic switches, mechanical switches such as a plurality of relays and rotary switches (motor drive, solenoid drive) may be used.

  At the position where the first push button 11 of the four interlocking push switch 1 is pushed in, the first HDMI input terminal 521 of the selector 5 is electrically connected to the input portion 581 of the HDMI splitter 58, and the first of the selector 5 The switching means 571 is controlled so that the L / R pins of the line input terminal 522 are electrically connected to the L / R pins of the line output terminal 562 of the selector 5.

  In the position where the second push button 12 of the four interlocking push switch 1 is pushed, the second HDMI input terminal 531 of the selector 5 is electrically connected to the input portion 581 of the HDMI splitter 58, and the second push button 12 of the selector 5 is connected. The output side of the signal superimposing circuit j1 for inputting the acoustic signal of the personal computer 42 output from the line input terminal 532 and the audio signal of the adjusted microphone M output from the output unit 512 of the audio mixer 511 to the input side is a selector. The switching means 571 is controlled to be electrically connected to the L · R pin of the line output terminal 562 of No.5. As a result, a signal in which the sound signal of the second source device 42 which is a personal computer and the adjusted sound signal of the microphone M are superimposed is output from the line output terminal 562 of the selector 5.

  At the position where the third push button 13 of the four interlocking push switch 1 is pushed, the third HDMI input terminal 541 of the selector 5 is electrically connected to the input portion 581 of the HDMI splitter 58 and the third push button 13 of the selector 5 is connected. The audio signal of the third source device 43 that is a Blu-ray Disc player output from the line input terminal 542 and the audio signal of the adjusted microphone M output from the output unit 512 of the audio mixer 511 are input to the input side The switching means 571 is controlled so that the output side of the signal superimposing circuit j2 is electrically connected to the L / R pins of the line output terminal 562 of the selector 5. As a result, a signal in which the audio signal of the third source device 43 which is a Blu-ray Disc player and the adjusted audio signal of the microphone M are superimposed is output from the line output terminal 562 of the selector 5.

  In the position where the fourth push button 14 of the four interlocking push switch 1 is pushed, the fourth HDMI input terminal 551 of the selector 5 is electrically connected to the input portion 581 of the HDMI splitter 58, and the fourth push button 14 of the selector 5 is connected. The audio signal of the fourth source device 44 which is the HDMI converter 44 output from the line input terminal 552 and the audio signal of the adjusted microphone M output from the output unit 512 of the audio mixer 511 are input to the input side The switching means 571 is controlled so that the output side of the signal superimposing circuit j3 is electrically connected to the L / R pins of the line output terminal 562 of the selector 5. Thus, a signal on which the audio signal of the portable terminal K output from the fourth source device 44 which is the HDMI converter 44 and the adjusted audio signal of the microphone M are superimposed is output from the line output terminal 562 of the selector 5 It is output.

The HDMI cables 61, 62, 63, 64 on the input side are the same cables as in the first embodiment.
The HDMI cable 65 on the output side is a cable for electrically connecting the first HDMI output terminal 563 of the selector 5 and the HDMI input terminal c of the sink device C, which is a large plasma display.

The HDMI cable 66 on the output side is a cable for electrically connecting the second HDMI output terminal 564 of the selector 5 and the HDMI input terminal d of the sink device D, which is a small plasma display.
The RCA cables 71, 72, 73, 74 on the input side are the same as in the first embodiment, and the RCA cables 75 on the output side are also the same as in the first embodiment.

The karaoke machine switching device B according to the second embodiment has the following advantages.
If the singer or companion who visits the karaoke shop presses any one of the first to fourth pressing buttons of the four interlocking push-type switch 1 and presses it in the same manner as the karaoke device switching device A of the first embodiment In addition, four types of source devices (specifically, Karaoke Commander, Blu-ray Disc player, personal computer, portable terminal) can be easily switched.

  The four interlocking push-type switch 1 is a single throw type, and when one of the first to fourth push buttons 11, 12, 13, 14 is pressed (the electric contact is closed), another push button is pressed. Is the structure that returns to the initial position (the electrical contact is in the open state), so that, as with the karaoke equipment switching device A of the first embodiment, which push button is currently being pressed, This makes it easy to see at a glance, so that singers and accompanying persons can easily determine which source devices are currently available.

By switching the four interlocking push type switch 1, without changing the cable, in addition to the karaoke commander, the Blu-ray disc player, the personal computer, or the portable terminal is the audio device 2 and the sink devices C and D (large and small Electrically connected to the plasma display).
For this reason, singers and companions who come to the karaoke shop bring in a private optical disc containing accompaniment data of the music and play them on the optical disc player, or use the provided personal computer or the private portable terminal K from the Internet Accompaniment data of music can be imported and used. In addition, contents other than karaoke (video games, movie watching, trial listening to television) can be enjoyed with great power and ease by the audio device 2 and the sink devices C and D.

Even when a source device other than the karaoke commander is used, the karaoke device switching device A is convenient since it can be sung using the same microphone M as in the karaoke device switching device A of the first embodiment.
In addition, since the level and tone of the audio signal of the microphone receiver 3 input from the external audio input terminal 510 can be adjusted by the audio mixer 511, it is possible to sing comfortably.

  Similarly to the karaoke equipment switching device A of the first embodiment, the audio signal output from the microphone receiver 3 is made into two systems, and the audio signal on the one system side is inputted to the karaoke commander which is the first source device 41. , The scoring function of the karaoke commander is not lost.

  Similar to the karaoke equipment switching device A of the first embodiment, the first to fourth HDMI input terminals of the selector 5 connected to the HDMI output terminals of each source equipment (karaoke commander, optical disc player, personal computer, portable terminal). In addition to the switching means 571 completely switching the electrical connection between 521, 531, 541, 551 and the input unit 581 of the HDMI splitter 58, it is connected to the line output terminals 41b, 42b, 43b, 44b of each source device. Since the switching means 571 completely switches the electrical connection between the first to fourth line input terminals 522, 532, 542, 552 of the selected selector and the line input terminal 22 of the amplifier 23, the four interlocking push type switch When switching the source device by pressing any one of the 1 push buttons, interference between the source devices can be prevented. .

  Since the digital video signal output from the selector 5 is divided into two by the HDMI splitter 58 and output to the first HDMI output terminal 583 and the second HDMI output terminal 564, the first and second displays ( The same moving image or still image can be displayed on the first and second sink devices C and D). In addition, the first display (small) can be made to be close to the singer and the singer can be made to display the second display (large) to be made to accompany the person.

<Modification>
a. In Examples 1 and 2, the use of content other than karaoke is not only video games, watching movies, watching TV, but also live distribution from karaoke rooms, watching sports by friends, playing games with remote destinations, etc. Also good.

b. In the first and second embodiments, the music data that can be acquired from another source device (optical disk player, personal computer, portable terminal) may be music both inside and outside of the karaoke commander.

c. In the first and second embodiments, in the case of a type of personal computer that outputs a video signal from a display port, a conversion means (converter or conversion cable) for HDMI output is necessary.

d. In the first and second embodiments, the mobile terminal may be a tablet personal computer or a notebook personal computer.

e. In the first and second embodiments, the microphone M may use a radio wave obtained by modulating a carrier wave with an audio signal, or may be a dynamic microphone.

f. In the first and second embodiments, the storage device of the karaoke commander may be an SSD other than the HDD.

g. In each embodiment, the sink devices C and D may be an organic EL display, a liquid crystal display, or a projector.

A, B Karaoke device switching device 1 Four interlocking push type switch 2 Sound device 5 Selector 11 First press button 12 Second press button 13 Third press button 14 Fourth press button 21 Speaker (speaker group)
22 line input terminal 23 amplifier C sink device (sink device, first sink device)
c HDMI input terminal D Sink device (second sink device)
d HDMI input terminal m Infrared M Microphone 41 First source device 41a HDMI output terminal 41b Line output terminal 42 Second source device 42a HDMI output terminal 42b Line output terminal 43 Third source device 43a HDMI output terminal 43b Line output terminal 44 4th source device 44a HDMI output terminal 44b line output terminal 57 input switching device
58 HDMI splitter 61, 62, 63, 64 HDMI cable on the input side
65 HDMI cable on the output side
66 HDMI cable on the output side
70 RCA cable (RCA cable on the input side)
75 Output RCA cables 71, 72, 73, 74 Input RCA cables
510 External audio input terminal
511 Audio mixer
512 output section
521 First HDMI input terminal
522 First line input terminal
531 Second HDMI input terminal
532 Second line input terminal
541 Third HDMI input terminal
542 Third line input terminal
551 Fourth HDMI input terminal
552 Fourth line input terminal
561 HDMI output terminal
562 Line output terminal
563 First HDMI output terminal
564 Second HDMI output terminal
570 Microcomputer
571 switching means

[About claim 1]
The karaoke equipment switching device (A) includes a four-linked push switch (1) , an acoustic device (2) , a sink device (C) as a display, a microphone (M) , a microphone receiver (3) , 1 to 4 source devices (41 to 44) , selector (5) , HDMI cables (61 to 64) on the input side, HDMI cables (65) on the output side, RCA cables (71 to the input side ) 74) and an RCA cable (75) on the output side (HDMI is a registered trademark).

The four interlocking push type switch (1) is a single throw type, and pushes in any one of the first push button (11) to the fourth push button (14) (the electric contact is closed). The other push button is returned to the initial position (electrical contact is in the open state), whereby the respective electrical contacts are opened and closed.

The acoustic device (2) includes a speaker group (21,... 21) and an amplifier (23) having a line input terminal (22) .
The sink device (C) is a display having an HDMI input terminal (c) and capable of displaying moving pictures and still pictures.

The microphone (M) converts the sound uttered by the singer into an electrical signal in accordance with the sound emitted from the speaker group (21,... 21) and the video displayed on the display of the sink device (C). The signal is superimposed on infrared (m) and radio waves.

The microphone receiver (3) demodulates and amplifies an electric signal superimposed on an infrared ray (m) or a radio wave (sent from a microphone), and outputs two amplified audio signals.

The first source device (41) has a storage device for storing a large number of music data distributed from the server via the network, and an HDMI output terminal (41a) for outputting a digital video signal for music performance; A karaoke commander having a line output terminal (41b) for outputting an analog sound signal in which an audio signal ( one side) output from a microphone receiver (3) is superimposed on an accompaniment sound signal.

The second source device (42) is a personal computer having an HDMI output terminal (42a) for outputting a digital video signal, and a line output terminal (42b) for outputting an analog audio signal.
The third source device (43) is an optical disk player having an HDMI output terminal (43a) for outputting a digital video signal and a line output terminal (43b) for outputting an analog audio signal.

The fourth source device (44) is an HDMI converter for converting an MHL output Lightning output or portable terminal of the mobile terminal (K) (K) to the HDMI output and analog output, HDMI output for outputting a digital video signal It has a terminal (44a) and a line output terminal (44b) for outputting an analog sound signal.

The selector (5) includes an external audio input terminal (510), an audio mixer (511), a first HDMI input terminal (521), a first line input terminal (522), and a second HDMI input terminal ( 531), the second line input terminal (532) , the first signal superimposing circuit (j1), the third HDMI input terminal (541), the third line input terminal (542), and the second signal. A superimposing circuit (j2), a fourth HDMI input terminal (551) and a fourth line input terminal (552), a third signal superimposing circuit (j3), an HDMI output terminal (561) and a line output terminal ( 562) and an input switching device (57) having a microcomputer (570) for controlling the switching means (571) .

The external audio input terminal (510) receives an audio signal (the other side) output from the microphone receiver (3) . The audio mixer (511) adjusts the level of the audio signal input from the external audio input terminal (510), and outputs the adjusted audio signal from the output unit (512) .

A digital video signal output from a first source device (41) , which is a karaoke commander, is input to the first HDMI input terminal (521) . An analog sound signal output from the first source device (41) , which is a karaoke commander, is input to the first line input terminal (522) .

A digital video signal output from the second source device (42) , which is a personal computer, is input to the second HDMI input terminal (531) . The analog sound signal output from the second source device (42) , which is a personal computer, is input to the second line input terminal (532) .

The third HDMI input terminal (541) receives a digital video signal output from the third source device (43) , which is an optical disc player. An analog audio signal output from the third source device (43) , which is an optical disc player, is input to the third line input terminal (542) .

The digital video signal of the portable terminal (K) output from the fourth source device (44 ) which is an HDMI converter is input to the fourth HDMI input terminal (551) . The analog sound signal of the portable terminal (K) output from the fourth source device (44) , which is an HDMI converter, is input to the fourth line input terminal (552) .

The selector (5) is electrically connected to each contact of the four interlocking push type switch (1) by a connection cable (50) .
Four in the interlocked push first push button switch (1) (11) is pushed in position, the selector (5) a first HDMI input terminal (521) is to selector HDMI output terminal (5) (561) of are electrically connected, the micro-selector as the first line input terminal (5) (522) is electrically connected to the line output terminal of the selector (5) (562), the input switching device (57) The computer (570) controls the switching means (571) .

Four in the second push button interlocked push switch (1) (12) is pushed position, the selector (5) a second HDMI input terminal (531) is to selector HDMI output terminal (5) (561) of Electrically connected and the output side of the first signal superimposing circuit (j1) of the selector (5) is electrically connected to the line output terminal (562) of the selector (5) {from the second line input terminal (532) A signal obtained by superimposing the output analog sound signal and the adjusted audio signal output from the output unit (512) of the audio mixer (511) by the first signal superimposing circuit (j1) is the line output of the selector (5). The switching means (571) is controlled to be output to the terminal (562) .

Four in the third push button (13) is pushed in the position of the interlock push switch (1), the selector (5) third HDMI input terminal (541) is to selector HDMI output terminal (5) (561) of Electrically connected and the output side of the second signal superimposing circuit (j2) of the selector (5) is electrically connected to the line output terminal (562) of the selector (5) {from the third line input terminal (542) A signal obtained by superimposing the output analog sound signal and the adjusted audio signal output from the output unit (512) of the audio mixer (511) by the second signal superimposing circuit (j2) is the line output of the selector (5). The switching means (571) is controlled to be output to the terminal (562) .

Four in the fourth push button (14) is pushed position of the interlock push switch (1), the selector (5) Fourth HDMI input terminal (551) is to selector HDMI output terminal (5) (561) of Electrically connected and the output side of the third signal superimposing circuit (j3) of the selector (5) is electrically connected to the line output terminal (562) of the selector (5) {from the fourth line input terminal (552) A signal obtained by superimposing the output analog acoustic signal and the adjusted audio signal output from the output unit (512) of the audio mixer (511) by the third signal superimposing circuit (j3) is the line output of the selector (5). The switching means (571) is controlled to be output to the terminal (562) .

The four HDMI cables (61 to 64) on the input side are respectively connected to the HDMI output terminals (41a to 44a) of the first to fourth source devices (41 to 44 ) and the first to fourth of the selector (5) . 4 and HDMI input terminals (521, 531, 541, 551) .
The HDMI cable (65) on the output side connects the HDMI output terminal (561 ) of the selector (5) to the HDMI input terminal (c) of the sink device (C) as a display.

The four input RCA cables (71 to 74) are connected to the line output terminals (41b, 42b, 43b, 44b) of the first to fourth source devices (41 to 44) and the selector (5) , respectively. The first to fourth line input terminals (522, 532, 542, 552) are connected.
The RCA cable (75) on the output side connects the line output terminal (562 ) of the selector (5 ) and the line input terminal (22) of the amplifier (23) .

The karaoke device switching device (A) of claim 1 has the following advantages.
If the singer or companion who came to the karaoke store presses and presses one of the first push button (11) to the fourth push button (14) of the four interlocking push type switch (1) , four kinds of sources The devices (41 to 44) {Karaoke Commander, optical disc player, personal computer, portable terminal} can be easily switched.

The four interlocking push type switch (1) is a single throw type, and when one of the first push button (11) to the fourth push button (14) is pushed in (the electrical contact is closed), the other Since the push button of this is a structure that returns to the initial position (the electrical contact is in the open state), it is possible to know at a glance which push button is being pushed in. For this reason, the singer and accompanying person are currently It can be easily determined whether the source device (Karaoke Commander, optical disc player, personal computer, portable terminal) can be used.

The source device such as an optical disk player, a personal computer, or a portable terminal, other than the karaoke commander, is connected to the audio device (2) and the sink device (C ) without switching the cable by switching the interlocking push type switch (1). ) { Electrically connected to the display} .
For this reason, singers and companions who come to the karaoke shop bring in a private optical disc containing accompaniment data of the music and play them on the optical disc player, or play music from the Internet using a built-in personal computer or a private portable terminal. Accompaniment data can be captured and used. In addition, content other than karaoke (video games, watching movies, listening to television) can be easily enjoyed.

Even when using a source device other than the karaoke commander, the same microphone (M) can be used for singing, so the karaoke device switching device (A) is easy to use. In addition, since the level of the audio signal of the microphone receiver (3) input from the external audio input terminal (510) can be adjusted by the audio mixer (511) , it is possible to sing comfortably.

Since the microphone receiver (3) outputs two audio signals and inputs one system (one side) audio signal to the karaoke commander, the scoring function of the karaoke commander is not impaired.

First to fourth HDMI input terminals (521, 521 ) of the selector (5) connected to each HDMI output terminal (41a, 42a, 43a, 44a) of each source device (karaoke commander, optical disc player, personal computer, portable terminal) 531, 541, 551) and the switching means (571) for electrical connection between the HDMI output terminal (561) of the selector (5) connected to the HDMI input terminal (c) of the sink device (C) {display)}. In addition to being completely switched, the first to fourth line input terminals (522, 532, 542,... ) Of the selector (5) connected to the line output terminals (41b, 42b, 43b, 44b) of each source device and 552), since the switching means electrically connected between the line input terminal of the amplifier (23) (22) (571) is switched completely, four interlocking flop Any of push button Gerhard switch (1) when switching between the source device and depression operation, thereby preventing interference between the source device.

[Claim 2]
The karaoke equipment switching device (B) includes four interlocking push type switches (1) , an acoustic device (2) , first and second sink devices (C, D) as first and second displays, Microphone (M) , microphone receiver (3) , first to fourth source devices (41 to 44) , selector (5) , input side HDMI cables (61 to 64) , and output side HDMI A cable (65) , an input-side RCA cable (71 to 74), and an output-side RCA cable (75) are provided.

The four interlocking push type switch (1) is a single throw type, and pushes in any one of the first push button (11) to the fourth push button (14) (the electric contact is closed). The other push button is returned to the initial position (electrical contact is in the open state), whereby the respective electrical contacts are opened and closed.

The acoustic device (2) includes a speaker group (21,... 21) and an amplifier (23) having a line input terminal (22) .
The first sink device (C) is a first display having an HDMI input terminal (c) and capable of displaying a moving image or a still image.
The second sink device (D) is a second display having an HDMI input terminal (d) and capable of displaying a moving image or a still image.

The microphone (M) is displayed on the sound emitted from the speaker group (21,... 21) and on the first display of the first sink device (C) or the second display of the second sink device (D) . According to the video, convert the voice uttered by the singer into an electrical signal, and superimpose the electrical signal on an infrared ray (m) or a radio wave.

The microphone receiver (3) demodulates and amplifies an electric signal superimposed on an infrared ray (m) or a radio wave (sent from a microphone), and outputs two amplified audio signals.

The first source device (41) has a storage device for storing a large number of music data distributed from a server via a network, and an HDMI output terminal (41a) for outputting a digital video signal for music performance; A karaoke commander having a line output terminal (41b) for outputting an analog sound signal in which an audio signal ( one side) output from a microphone receiver (3) is superimposed on an accompaniment sound signal.

The second source device (42) is a personal computer having an HDMI output terminal (42a) for outputting a digital video signal, and a line output terminal (42b) for outputting an analog audio signal.
The third source device (43) is an optical disk player having an HDMI output terminal (43a) for outputting a digital video signal and a line output terminal (43b) for outputting an analog audio signal.

The fourth source device (44) is an HDMI converter for converting an MHL output Lightning output or portable terminal of the mobile terminal (K) (K) to the HDMI output and analog output, HDMI output for outputting a digital video signal It has a terminal (44a) and a line output terminal (44b) for outputting an analog sound signal.

The selector (5) includes an external audio input terminal (510), an audio mixer (511), a first HDMI input terminal (521), a first line input terminal (522), and a second HDMI input terminal ( 531), the second line input terminal (532) , the first signal superimposing circuit (j1), the third HDMI input terminal (541), the third line input terminal (542), and the second signal. A superimposing circuit (j2), a fourth HDMI input terminal (551) and a fourth line input terminal (552), a third signal superimposing circuit (j3), an HDMI output terminal (561) and a line output terminal ( 562) and an input switching device (57) having a microcomputer (570) for controlling the switching means (571) .

The external audio input terminal (510) receives an audio signal (the other side) output from the microphone receiver (3) .
In the case of claim 2, the audio mixer (511) adjusts the tone in addition to the level of the audio signal input from the external audio input terminal (510), and outputs the adjusted audio signal from the output unit (512). To do.

A digital video signal output from a first source device (41) , which is a karaoke commander, is input to the first HDMI input terminal (521) . An analog sound signal output from the first source device (41) , which is a karaoke commander, is input to the first line input terminal (522) .

A digital video signal output from the second source device (42) , which is a personal computer, is input to the second HDMI input terminal (531) . The analog sound signal output from the second source device (42) , which is a personal computer, is input to the second line input terminal (532) .

The third HDMI input terminal (541) receives a digital video signal output from the third source device (43) , which is an optical disc player. An analog audio signal output from the third source device (43) , which is an optical disc player, is input to the third line input terminal (542) .

The digital video signal of the portable terminal (K) output from the fourth source device (44 ) which is an HDMI converter is input to the fourth HDMI input terminal (551) . The analog sound signal of the portable terminal (K) output by the fourth source device which is an HDMI converter is input to the fourth line input terminal.

The selector (5) is electrically connected to each contact of the four interlocking push type switch (1) by a connection cable (50) .
At the position where the first push button (11 ) of the four interlocking push switch (1) is pushed, the first HDMI input terminal (521) of the selector (5) is connected to the input section (581) of the HDMI splitter (58). are electrically connected, the micro-selector as the first line input terminal (5) (522) is electrically connected to the line output terminal of the selector (5) (562), the input switching device (57) The computer (570) operates the switching means (571) .

At the position where the second push button (12 ) of the four interlocking push switch (1) is pushed, the second HDMI input terminal (531) of the selector (5) is connected to the input section (581) of the HDMI splitter (58). The switching means (571) is operated so that the signal is electrically connected and the signal superimposed by the first signal superposition circuit (j1) is guided to the line output terminal (562) of the selector (5) .

At the position where the third push button (13 ) of the four interlocking push switch (1) is pushed, the third HDMI input terminal (541) of the selector (5) is connected to the input section (581) of the HDMI splitter (58). The switching means (571) is operated so that the signal is electrically connected and the signal superimposed by the second signal superposition circuit (j2) is guided to the line output terminal (562) of the selector (5) .

The four fourth push button interlocked push switch (1) (14) is pushed position, the input selector HDMI splitters fourth HDMI input terminal (551) is selector (5) (5) (58) The switching means (571) is operated so that the signal electrically connected to the unit (581) and the signal superimposed by the third signal superimposing circuit (j3) is guided to the line output terminal (562) of the selector (5). .

The four HDMI cables (61 to 64) on the input side are respectively connected to the HDMI output terminals (41a to 44a) of the first to fourth source devices (41 to 44 ) and the first to fourth of the selector (5) . 4 and HDMI input terminals (521, 531, 541, 551) .
The two HDMI cables (65, 66) on the output side are the first and second HDMI output terminals (563, 564) of the selector (5 ) and the first and second displays which are the first and second displays. And the HDMI input terminals (c, d) of the sink device (C, D).

The four input RCA cables (71 to 74) are respectively connected to the line output terminals (41b, 42b, 43b, 44b) of the first to fourth source devices (41 to 44) and the selector (5). The first to fourth line input terminals (522, 532, 542, 552) are connected.
The RCA cable (75) on the output side connects the line output terminal (562 ) of the selector (5 ) and the line input terminal (22) of the amplifier (23) .

The karaoke device switching device (C) of claim 2 has the following advantages.
If the singer or companion who came to the karaoke store presses and presses one of the first push button (11) to the fourth push button (14) of the four interlocking push type switch (1) , four kinds of sources The devices (41 to 44) {Karaoke Commander, optical disc player, personal computer, portable terminal} can be easily switched.

The four interlocking push type switch (1) is a single throw type, and when one of the first push button (11) to the fourth push button (14) is pushed in (the electrical contact is closed), the other Since the push button of this is a structure that returns to the initial position (the electrical contact is in the open state), it is possible to know at a glance which push button is being pushed in. For this reason, the singer and accompanying person are currently It can be easily determined whether the source device (Karaoke Commander, optical disc player, personal computer, portable terminal) can be used.

By switching the interlocking push type switch (1) , the source device such as an optical disc player, a personal computer, or a portable terminal can be used as the audio device (2) and the first, the first, the second , in addition to the karaoke commander. It is electrically connected to two sink devices (C, D) { first display, second display } .
For this reason, singers and companions who come to the karaoke shop bring in a private optical disc containing accompaniment data of the music and play them on the optical disc player, or play music from the Internet using a built-in personal computer or a private portable terminal. Accompaniment data can be captured and used. In addition, content other than karaoke (video games, watching movies, listening to television) can be easily enjoyed.

Even when using a source device other than the karaoke commander, the same microphone (M) can be used for singing, so the karaoke device switching device (B) is easy to use. In addition, since the level and tone of the audio signal of the microphone receiver (3) input from the external audio input terminal (510) can be adjusted by the audio mixer (511) , it is possible to sing comfortably.

Since the microphone receiver (3) outputs two audio signals and inputs one system (one side) audio signal to the karaoke commander, the scoring function of the karaoke commander is not impaired.

First to fourth HDMI input terminals (521, 521 ) of selectors (5) connected to respective HDMI output terminals (41a, 42a, 43a, 44a) of respective source devices (Karaoke Commander, optical disc player, personal computer, portable terminal) 531, 541, 551) and the HDMI output terminal (561) of the selector (5) are completely switched by the switching means (571) , and the line output terminals (41b, 42b ) of each source device are also switched. , electrical connection 43 b, the selectors (first to fourth line input terminal 5) (522,532,542,552) which is connected to 44b), an amplifier (23 line input terminal) (22) since the switching means is switched complete, when switching the source device to one of the push button of the four-interlocking push switch (1) depression operation, Interference between over scan devices can be prevented.

The digital video signal output from the selector (5) is divided into two by the HDMI splitter (58 ) and output to the first HDMI output terminal (563) and the second HDMI output terminal (564) , The same moving image or still image can be displayed on the first and second displays { first and second sink devices (C, D) }. In addition, the first display (small) can be made to be close to the singer and the singer can be made to display the second display (large) to be made to accompany the person.

Claims (2)

A single-throw four-link push switch that opens and closes each electrical contact by returning the other push button to the initial position by pressing any one of the first to fourth push buttons;
An acoustic device comprising a speaker group and an amplifier having a line input terminal;
A sink device having an HDMI input terminal and capable of displaying moving images and still images;
A microphone for converting a voice uttered by a singer into an electrical signal according to the sound emitted from the speaker group and the image displayed on the display of the sink device, and superimposing the electrical signal on infrared rays or radio waves;
A microphone receiver that demodulates and amplifies the electric signal superimposed on infrared rays or radio waves, and outputs two lines of the amplified audio signal;
HDMI output terminal for outputting a digital video signal for music performance having a storage device for storing a large number of music data distributed from a server via a network, and an acoustic signal for accompaniment of an audio signal output from the microphone receiver A first source device which is a karaoke commander having a line output terminal for outputting an analog audio signal superimposed on
A second source device which is a personal computer having a HDMI output terminal for outputting a digital video signal and a line output terminal for outputting an analog audio signal;
A third source device which is an optical disc player having an HDMI output terminal for outputting a digital video signal and a line output terminal for outputting an analog audio signal;
A fourth source device which is an HDMI converter having an HDMI output terminal for converting a Lightning output or MHL output of the portable terminal to an HDMI output and outputting a digital video signal, and a line output terminal for outputting an analog audio signal;
An external audio input terminal for inputting the audio signal output from the microphone receiver; an audio mixer for adjusting the level of the audio signal input from the external audio input terminal; and outputting from the output unit A first HDMI input terminal and a first line input terminal for inputting a digital video signal and an analog audio signal output from the device, and a digital video signal and an analog audio signal output from the second source device A second HDMI input terminal and a second line input terminal, a third HDMI input terminal and a third line input terminal for inputting a digital video signal and an analog audio signal output from the third source device, A fourth HD for inputting a digital video signal and an analog audio signal output from the fourth source device A selector having I input terminal and the fourth line input terminal, HDMI output terminal and line output terminal, and the input switching device and having a micro Konpyuta for controlling the switching means,
Four HDMI cables on the input side connecting the HDMI output terminals of the first to fourth source devices to the first to fourth HDMI input terminals of the selector;
An output-side HDMI cable connecting the HDMI output terminal of the selector and the HDMI input terminal of the sink device;
Four input RCA cables connecting the line output terminals of the first to fourth source devices to the first to fourth line input terminals of the selector;
A karaoke apparatus switching device comprising: an RCA cable on an output side connecting a line output terminal of the selector and a line input terminal of the amplifier;
The selector is electrically connected to each contact of the four interlocking push-type switches with a connection cable,
The microcomputer is
The first HDMI input terminal and the first line input terminal are electrically connected to the HDMI output terminal of the selector and the line output terminal of the selector, respectively, at the pressing position of the first pressing button. Operate the switching means to
At the depressed position of the second pressing button, the second HDMI input terminal is electrically connected to the HDMI output terminal of the selector, and the second line input terminal and the output unit of the audio mixer are the selectors of the selector. Operate the switching means so as to be electrically connected to the line output terminal;
At the depressed position of the third press button, the third HDMI input terminal is electrically connected to the HDMI output terminal of the selector, and the third line input terminal and the output unit of the audio mixer are the selectors of the selector. Operate the switching means so as to be electrically connected to the line output terminal;
At the depressed position of the fourth press button, the fourth HDMI input terminal is electrically connected to the HDMI output terminal of the selector, and the fourth line input terminal and the output section of the audio mixer are the selectors. A karaoke equipment switching device, wherein the switching means is operated so as to be electrically connected to the line output terminal. A single throw type four interlocking push type switch which returns another press button to an initial position and opens and closes each electric contact by pressing any of the first to fourth press buttons.
An acoustic device comprising a speaker group and an amplifier having a line input terminal;
A first sink device having an HDMI input terminal and being a first display capable of displaying moving images and still images;
A second sink device having a HDMI input terminal and being a second display capable of displaying moving images and still images;
According to the sound emitted from the speaker group and the image displayed on the first display of the first sink device or the second display of the second sink device, the voice uttered by the singer is converted into an electric signal A microphone that superimposes the electrical signal on infrared rays or radio waves,
A microphone receiver that demodulates and amplifies the electric signal superimposed on infrared rays or radio waves, and outputs two lines of the amplified audio signal;
HDMI output terminal for outputting a digital video signal for music performance having a storage device for storing a large number of music data distributed from a server via a network, and an acoustic signal for accompaniment of an audio signal output from the microphone receiver A first source device which is a karaoke commander having a line output terminal for outputting an analog audio signal superimposed on
A second source device which is a personal computer having a HDMI output terminal for outputting a digital video signal and a line output terminal for outputting an analog audio signal;
A third source device which is an optical disc player having an HDMI output terminal for outputting a digital video signal and a line output terminal for outputting an analog audio signal;
A fourth source device which is an HDMI converter having an HDMI output terminal for converting a Lightning output or MHL output of the portable terminal to an HDMI output and outputting a digital video signal, and a line output terminal for outputting an analog audio signal;
An external audio input terminal for inputting the audio signal output from the microphone receiver; an audio mixer for adjusting the level and tone of the audio signal input from the external audio input terminal; and outputting from the output unit A first HDMI input terminal and a first line input terminal for inputting a digital video signal and an analog audio signal output from the first source device, and a digital video signal and an analog audio signal output from the second source device Second HDMI input terminal and second line input terminal for inputting, third HDMI input terminal and third line input for inputting digital video signal and analog audio signal output from the third source device A terminal for inputting a digital video signal and an analog audio signal output from the fourth source device; The HDMI input terminal and the fourth line input terminal, the first HDMI output terminal and the second HDMI output terminal for outputting the digital video signal divided by the HDMI splitter, the second HDMI output terminal, the line output terminal, and the micro for controlling the switching means. A selector comprising an input switching device having a computer;
Four HDMI cables on the input side connecting the HDMI output terminals of the first to fourth source devices to the first to fourth HDMI input terminals of the selector;
Two output-side HDMI cables on the output side connecting the first HDMI output terminal and the second HDMI output terminal of the selector and the HDMI input terminals of the first and second sink devices,
Four input RCA cables connecting the line output terminals of the first to fourth source devices to the first to fourth line input terminals of the selector;
A karaoke apparatus switching device comprising: an RCA cable on an output side connecting a line output terminal of the selector and a line input terminal of the amplifier;
The selector is electrically connected to each contact of the four interlocking push-type switches with a connection cable,
The microcomputer is
The first HDMI input terminal and the first line input terminal are electrically connected to the input portion of the HDMI splitter and the line output terminal of the selector, respectively, at the pushing position of the first push button. Operate the switching means to
In the pushing position of the second push button, the second HDMI input terminal is electrically connected to the input section of the HDMI splitter, and the second line input terminal and the output section of the audio mixer are connected to the selector. Operate the switching means to be electrically connected to the line output terminal,
In the pushing position of the third push button, the third HDMI input terminal is electrically connected to the input section of the HDMI splitter, and the third line input terminal and the output section of the audio mixer are connected to the selector. Operate the switching means to be electrically connected to the line output terminal,
In the pushing position of the fourth push button, the fourth HDMI input terminal is electrically connected to the input section of the HDMI splitter, and the fourth line input terminal and the output section of the audio mixer are connected to the selector. A karaoke equipment switching device, wherein the switching means is operated so as to be electrically connected to a line output terminal.

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