CN110880309A

CN110880309A - Kara OK equipment switching device with good usability

Info

Publication number: CN110880309A
Application number: CN201910653585.XA
Authority: CN
Inventors: 神谷大树
Original assignee: Summaries
Current assignee: Summaries
Priority date: 2018-09-06
Filing date: 2019-07-19
Publication date: 2020-03-13
Anticipated expiration: 2039-07-19
Also published as: JP6487596B1; CN110880309B; JP2020042058A

Abstract

The invention provides a karaoke apparatus switching device which can easily switch the connection with audio and video apparatuses by a guest of an incoming store to simply operate four audio and video apparatuses in a karaoke room, and can make the sound signal of a microphone and the sound signal of the audio and video apparatuses have the same level and have good usability. In an entertainment system with good usability, when a store user repeatedly clicks and releases a button of a 1 st button switch or a 2 nd button switch of a switch box in a state that a device other than a karaoke jukebox is selected, attenuation amounts of 1 st to 3 rd electronic sound volumes are reduced or increased. Therefore, the signal level of the acoustic signal output from the personal computer, the optical disk player, or the portable terminal can be matched with the signal level of the adjustment completion sound signal with the singer's voice output from the mixer.

Description

Kara OK equipment switching device with good usability

Technical Field

The present invention relates to a karaoke device switching apparatus using an audio/video selector and having excellent usability.

Background

In a karaoke system installed in a karaoke room, a large display and a large-power audio device are generally connected to a karaoke jukebox through a plurality of connection cables, so that a plurality of guests at a store can enjoy karaoke.

However, when the display and the audio apparatus are used for purposes other than karaoke (video game, movie watching, and television watching), a plurality of cables need to be connected and replaced.

Patent document 1 describes a karaoke system having a video signal switching unit. Patent document 2 describes a home theater having an input selector.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open No. 10-282975

Patent document 2: japanese patent laid-open publication No. 2011-41227

Disclosure of Invention

Technical problem to be solved by the invention

In the karaoke system of patent document 1, in addition to the images played by karaoke, the images of the auditorium captured by the camera, the reproduced moving images and still images of the video player are switched by the video signal switching means (input image switching means) so as to embed the video of the singer captured by another camera.

However, since the video signal switching unit of the karaoke system of patent document 1 is controlled by a remote controller, the operability of switching is poor (the video signal switching unit is also used for command operations such as song selection), and the current switching state cannot be determined at a glance.

In the home theater disclosed in patent document 2, a personal computer, a karaoke device, and a game device are incorporated as AV devices, and the devices to be used are switched by an input selector incorporated in the AV devices, so that software for them can be provided with a large screen and a large-power sound.

However, since all the devices are incorporated as AV devices, the AV devices become redundant and have poor maintainability. In addition, the input selector is built in the AV device, so the operability of switching is poor (because it is inconspicuous), and the current switching state cannot be determined at a glance.

In addition, recently, a personal computer connected to the internet is connected to the karaoke system, so that there is a demand for enjoying the following entertainment in a karaoke room:

want to enjoy online movies with friends through large screens and powerful stereo.

Want to enjoy the live sports in foreign countries with friends through large-screen and powerful stereo.

Want to send promotional music videos.

It is desired to sing with a singer through a large screen and a powerful sound.

A karaoke music piece abroad that wants to sing through a large screen and a large-power sound.

Want to play online games with large screens and powerful stereo.

The user wants to view the animation of the website together with the friend through a large-size and powerful audio device.

Further, there is a need for guests in karaoke rooms who wish to enjoy the following entertainment:

the user wants to view a BD or DVD with a friend through a large-sized screen and a large-power audio.

It is desired to view content stored in a mobile terminal (smart phone, notebook computer, tablet terminal, etc.) by the mobile terminal itself with a large screen and high-power audio.

In addition, when switching the audio and video equipment, the following technical problems exist:

in accordance with the needs of customers coming from the store, each time a clerk in the karaoke room switches the connection between a plurality of audio/video devices including a karaoke jukebox and an audio/video auditor (a large-screen display + a large-power audio device), the clerk needs to go to the karaoke room to perform work, which takes time and labor. Further, when the customer of the store makes a connection change, the connection change operation takes time and labor, and the device may be damaged by erroneous connection.

In addition, when there are a plurality of audio/video devices, since there is a variation in the audio signal output from each audio/video device, a level difference is likely to occur between the audio signal of the microphone and the audio signal of each audio/video device, and there is a possibility that it is not possible to perform a comfortable singing.

That is, it is necessary for the customer at the store to be able to easily operate the av selector for switching the plurality of av devices, and for the customer at the store to be able to see at a glance which av device is currently connected to the av device, and to prevent a level difference from occurring between the sound signal of the microphone and the sound signal of the av device.

The present invention has been made in an effort to provide a karaoke apparatus switching device which is easy to use, and which can easily switch the connection between various audio/video apparatuses and the audio/video apparatus (amplifier + display) by a guest of a store through a simple operation of the four audio/video apparatuses (karaoke jukebox, personal computer, optical disk player, and a portable terminal of the guest of the store) in a karaoke room, and can easily make the audio signal of a microphone and the audio signal of the audio/video apparatus have the same level.

Technical scheme for solving technical problem

[ first aspect of the invention ]

The karaoke device switching apparatus (a) of claim 1, which is excellent in usability, comprises: a box-shaped switch box (S) placed in the karaoke room; an audio device (1), a video device (La, Lb), and a microphone receiver (2) provided in a karaoke room; a karaoke jukebox (3), a personal computer (4), a compact disc player (5) and a signal converter (6) which are arranged in a karaoke room { four audio and video equipment }; a microphone (M) used in the karaoke room, and a sound and video selector (7) electrically connected with the switch box (S) through a connecting cable.

The 1 st to 4 th push-button switches (S1, S2, S3, S4) for switching devices of the switch box (S), the 1 st to 4 th lamps (r1, r2, r3, r4) for checking devices, the 1 st and 2 nd push-button switches (g1, 2) for adjusting sound signal levels, and the 1 st and 2 nd lamps (e1, e2) for checking operations are disposed on the upper surface of the box.

The 1 st to 4 th push button switches (s1, s2, s3, s4) are configured as normally open single-pole single-throw switches, and when the 1 st to 4 th push buttons (b1, b2, b3, b4) are pressed, the electric contacts are closed.

The 1 st to 4 th lamps (r1, r2, r3, r4) are disposed in the vicinity of the 1 st to 4 th push switches (s1, s2, s3, s 4).

The 1 st and 2 nd push button switches (g1, g2) are configured as normally open single-pole single-throw switches, and when the 1 st and 2 nd push buttons (p1, p2) are pressed, the electric contacts are closed.

The 1 st and 2 nd lamps (e1, e2) are disposed in the vicinity of the 1 st and 2 nd push switches (g1, g 2).

An acoustic device (1) includes a speaker (11) group and an amplifier (12).

The video devices (La, Lb) can display moving images and still images.

The microphone (M) converts the voice uttered by the singer into an acoustic electric signal, and the acoustic electric signal is superimposed with infrared rays or electric waves.

A microphone receiver (2) acquires infrared rays (m) or radio waves on which an audio electric signal is superimposed, demodulates and amplifies the audio electric signal, and outputs the amplified audio signals (21, 22) in a two-system manner.

The karaoke jukebox (3) has a storage device that stores a plurality of pieces of music data transmitted from a distribution server via a network (31), and outputs a video signal (32) of a background video of the music, and a vocal signal (21) on the side output by a microphone receiver (2), and a vocal signal (33) with singing obtained by superimposing a sound signal of a pure performance of the music.

The personal computer (4) is connectable to the Internet (40) and outputs a video signal (41) and an audio signal (42).

The optical disk player (5) can reproduce various optical disks and output a video signal (51) and an audio signal (52).

The signal converter (6) is connected to an output port of a portable terminal (60) which is brought into the karaoke room by a store-coming person, and outputs a video signal (61) and an audio signal (62).

The audio/video selector (7) comprises: a mixer (71), 1 st to 3 rd electronic sound volumes (k1, k2, k3), 1 st to 3 rd signal superimposing circuits (72, 73, 74), a press detection circuit (75), a microcomputer (76), a lamp energizing circuit (77), an electronic switch (78), and an electronic sound volume operation circuit (79).

The mixer (71) adjusts the level of the other side sound signal (22) output from the microphone receiver (2), and outputs an adjusted sound signal (711).

The 1 st electronic sound volume (k1) adjusts the signal level of an acoustic signal (42) output from a personal computer (4), and outputs an adjusted acoustic signal (421).

The 2 nd electronic volume (k2) adjusts the signal level of the audio signal (42) outputted from the optical disk player (5), and outputs an adjusted audio signal (521).

The 3 rd electronic sound volume (k3) adjusts the signal level of the acoustic signal (62) output from the signal converter (6), and outputs the adjusted acoustic signal (621).

A1 st signal superimposing circuit (72) superimposes an adjusted sound signal (711) output from the mixer (71) and an adjusted sound signal (421) output from a 1 st electronic volume (k1), and outputs a 1 st voiced sound signal (721).

A2 nd signal superimposing circuit (73) outputs a 2 nd voiced sound signal (731) obtained by superimposing an adjusted sound signal (711) output from a mixer (71) and an adjusted sound signal (521) output from a 2 nd electronic volume (k 2).

A3 rd signal superimposing circuit (74) superimposes an adjusted sound signal (711) output from the mixer (71) and an adjusted sound signal (531) output from a 3 rd electronic volume (k3), and outputs a 3 rd voiced sound signal (741).

A press detection circuit (75) detects the pressing of the 1 st to 4 th push-button switches (s1, s2, s3, s4) and the 1 st and 2 nd push-button switches (g1, g2) (b1, b2, b3, b4, p1, p2) by closing the electric contacts.

The microcomputer (76) of the audio/video selector (7) operates as follows.

When the store comes to press the 1 st button (b1) of the 1 st button switch (s1), the press detection circuit (75) detects only the press of the 1 st button (b1), and therefore the microcomputer (76) operates the electronic switch (78) so that the video signal (32) of the karaoke jukebox (3) and the audio signal (33) with singing are input to the video devices (La, Lb) and the amplifier (12) of the audio device (1), respectively, and instructs the lamp energizing circuit (77) to energize the 1 st lamp (r 1).

When the store comes to press the 2 nd button (b2) of the 2 nd button switch (s2), the press detection circuit (75) detects only the press of the 2 nd button (b2), so that the microcomputer (76) operates the electronic switch (78) to input the video signal (41) and the 1 st voiced sound signal (721) output from the personal computer (4) to the video devices (La, Lb) and the amplifier (12) of the audio device (1), respectively, and instructs the lamp energizing circuit (77) to energize the 2 nd lamp (r 2).

When the user presses the 3 rd button (b3) of the 3 rd button switch (s3), the press detection circuit (75) detects only the pressing of the 3 rd button (b3), so that the microcomputer (76) operates the electronic switch (78) to input the video signal (51) and the 2 nd audio signal (731) outputted from the optical disk player (5) to the video devices (La, Lb) and the amplifier (12) of the audio device (1), respectively, and instructs the lamp energizing circuit (77) to energize the 3 rd lamp (r 3).

When the store comes to press the 4 th button (b4) of the 4 th button switch (s4), the press detection circuit (75) detects only the pressing of the 4 th button (b4), and therefore the microcomputer (76) operates the electronic switch (78) so that the video signal (61) and the 3 rd voiced sound signal (741) output by the signal converter (6) are input to the video devices (La, Lb) and the amplifier (12) of the audio device (1), respectively, and the indicator lamp energizing circuit (77) energizes the 4 th lamp (r 4).

When a press detection circuit (75) detects a repeated click operation of a 1 st button (p1) of a 1 st button switch (g1) pressed and released by a store arriving person in a state where a device other than a karaoke jukebox (3) is selected, a microcomputer (76) instructs an electronic volume operation circuit (79) to reduce the attenuation amounts of 1 st to 3 rd electronic volumes (k1, k2, k3), so that the electronic volume operation circuit (79) reduces the attenuation amounts of 1 st to 3 rd electronic volumes (k1, k2, k 3). In addition, since the microcomputer (76) instructs the lamp energizing circuit (77) to energize the 1 st lamp (e1) when the 1 st button (p1) is pressed, the 1 st lamp (e1) is lit during the pressing.

When a press detection circuit (75) detects a repeated click operation of a 2 nd button (p2) of a 2 nd button switch (g2) pressed and released by a store arriving person in a state where a device other than a karaoke jukebox (3) is selected, a microcomputer (76) instructs an electronic volume operation circuit (79) to increase the attenuation amounts of 1 st to 3 rd electronic volumes (k1, k2, k3), so that the electronic volume operation circuit (79) increases the attenuation amounts of 1 st to 3 rd electronic volumes (k1, k2, k 3). In addition, since the microcomputer (76) indicates the lamp energizing circuit so that the 2 nd lamp (e2) is energized when the 2 nd button (p2) is pressed, the 2 nd lamp (e2) is lighted during the pressing.

The karaoke device switching apparatus according to claim 1, which is excellent in usability, has the following advantages.

A person coming to a karaoke shop (including a person in the same country) can easily switch between four audio/video devices { karaoke jukebox (3), personal computer (4), optical disc player (5), and portable terminal (60) } by pressing any of 1 st to 4 th buttons (b1, b2, b3, b4) of 1 st to 4 th button switches (s1, s2, s3, s 4).

When any one of the 1 st to 4 th push buttons (b1, b2, b3, b4) of the 1 st to 4 th push button switches (s1, s2, s3, s4) is pressed (during pressing, the electrical contact is closed), the 1 st to 4 th lamps (r1, r2, r3, r4) become on corresponding to the pressed 1 st to 4 th push button switches (s1, s2, s3, s4), therefore, it is possible to judge which device is currently connected to the audio apparatus (1) and the video apparatuses (La, Lb) at a glance, and therefore, even if the device is a person who is not performing a switching operation other than the person who comes from the store, after the lighting states of the 1 st to 4 th lamps (r1, r2, r3, r4) are observed, it is possible to easily determine which device { karaoke jukebox (3), personal computer (4), disc player (5), portable terminal (60) } is usable.

Further, since the 1 st to 4 th push switches (S1, S2, S3, S4) have short switch lengths and are normally open single-pole single-throw switches, they are easy to press, and the switch box (S) in which the 1 st to 4 th push switches (S1, S2, S3, S4) are disposed is not bulky.

When a store repeatedly clicks the 1 st button (p1) of the 1 st button switch (g1) or the 2 nd button (p2) of the 2 nd button switch (g1) of a switch box (S) while a device other than a karaoke jukebox (3) is selected, an electronic volume operation circuit (79) decreases or increases the attenuation amount of the 1 st to 3 rd electronic volumes (k1, k2, k 3).

Therefore, the coming store can simply match the signal level of the acoustic signal output by the four acoustic video equipment { personal computer (4), optical disk player (5), portable terminal (60) } with the signal level of the sound signal with the singer' S voice adjustment completion sound output by the mixer on the side of the switch box (S) by repeatedly clicking the 1 st and 2 nd button switches (g1, g2) of the switch box (S). In addition, the signal level of an acoustic signal of any acoustic video device { personal computer (4), optical disk player (5), portable terminal (60) } can be adjusted on the side of the switch box (S) without using the microphone (M).

Further, since the 1 st lamp or the 2 nd lamp (e1, e2) is turned on when the 1 st and 2 nd push button switches (g1, g2) are pressed, the store can confirm that the repeat click operation for the level matching is received by observing the lighting state of the lamps.

[ means for solving 2 ]

In a state that a device other than a karaoke jukebox (3) is selected, in addition to a configuration in which when a store arrives to repeatedly click and release a 1 st button (p1) of a 1 st button switch (g1) or a 2 nd button (p2) of a 2 nd button switch (g2) of a switch box (S), attenuation amounts of 1 st to 3 rd electronic sound volumes (k1, k2, k3) are reduced or increased, a configuration is made in which when a long-press operation is performed to release a long-press on the 1 st button (p1) of the 1 st button switch (g1) or the 2 nd button (p2) of the 2 nd button switch (g2), attenuation amounts of 1 st to 3 rd electronic sound volumes (k1, k2, k3) are greatly reduced or increased.

When the difference between the signal level of an acoustic signal output from a personal computer (4), an optical disk player (5), or a portable terminal (60) and the signal level of a sound signal (711) with a singer output from a mixer (71) is large, a long-press operation of long-pressing and releasing the 1 st button (p1) of a 1 st button switch (g1) or the 2 nd button (p2) of a 2 nd button switch (g2) is performed, and when the difference in the signal levels starts to decrease, a repeated click operation may be performed on the 1 st button (p1) of the 1 st button switch (g1) or the 2 nd button (p2) of the 2 nd button switch (g 2).

Therefore, the signal level of the sound signal outputted from the personal computer (4), the optical disk player (5), or the portable terminal (60) can be matched with the signal level of the sound signal (711) with the singing voice outputted from the mixer (71) after adjustment in a short time.

Drawings

Fig. 1 is a block diagram of a karaoke device switching apparatus with good usability according to embodiment 1 of the present invention.

Fig. 2 is an explanatory diagram of a switch box of the karaoke apparatus switching device.

Fig. 3 is a flowchart showing the operation of the microcomputer when switching the connected device.

Fig. 4 is a flowchart showing the operation of the microcomputer when adjusting the attenuation amount of the electric volume.

Detailed Description

The karaoke apparatus switching device with good usability is configured such that when a guest presses and releases the 1 st button of the 1 st button switch or the 2 nd button of the 2 nd button switch of the switch box and repeatedly clicks in a state where an apparatus other than the karaoke jukebox is selected, the attenuation amount of the 1 st to 3 rd electric sound volumes is decreased or increased.

Therefore, it is possible to match the signal level of the sound signal output from the personal computer, the optical disk player, or the portable terminal with the signal level of the adjustment completion sound signal of the singing voice output from the mixer.

Example 1

A karaoke device switching apparatus a (corresponding to claim 1) excellent in usability according to embodiment 1 of the present invention will be described with reference to fig. 1 to 4.

A karaoke device switching apparatus A having excellent usability includes: a box-shaped switch box S, an audio device 1, a display La and a large-sized display Lb which are video devices, a microphone M, a microphone receiver 2, a karaoke jukebox 3, a personal computer 4, an optical disk player 5, a signal converter 6, and an audio/video selector 7 (see fig. 1 and 2).

On the box upper surface U of a switch box S placed in a karaoke room K, there are disposed 1 st to 4 th push-button switches S1 to S4 for switching devices, 1 st to 4 th light-emitting diodes r1 to r4 for confirming connected devices, 1 st and 2 nd push-button switches g1 and g2 for adjusting sound signal levels, and 1 st and 2 nd light-emitting diodes e1 and e2 for confirming operations.

The 1 st to 4 th push-button switches s1 to s4 located on the lower side of the box upper surface U in the figure are single-pole single-throw switches in which the electrical contacts are closed when the 1 st to 4 th push-buttons b1 to b4 having a substantially square shape are pressed.

On the upper side of the 1 st to 4 th buttons b1 to b4 in the figure, (1), (2), (3) and (4) are printed, which are shown as a karaoke jukebox 3, a personal computer 4, a compact disc player 5, and a signal converter 6 of the portable terminal 60.

The 1 st to 4 th light emitting diodes r1 to r4 are disposed above (1), (2), (3) and (4), respectively, in the drawing.

The 1 st and 2 nd push button switches g1 and g2 are positioned on the right side of the upper surface U of the cartridge in the figure, and are normally open single-pole single-throw switches in which when the 1 st and 2 nd push buttons p1 and p2 having the shapes of the upper arrow (↓) and the lower arrow (↓) are pressed, the respective electrical contacts are closed.

The 1 st and 2 nd light emitting diodes e1 and e2 are respectively disposed on the box upper surface U above the 1 st push button p1 and the box upper surface U below the 2 nd push button p 2.

The acoustic apparatus 1 includes a speaker 11, … 11 group and an amplifier 12 having a line input terminal (RCA terminal R/L).

The display La and the large-format display Lb are normal-sized and large-sized plasma displays having HDMI input terminals, and can display moving images and still images.

The microphone M is an infrared transmission type condenser microphone having an infrared light emitting unit provided on the handle g.

The microphone M converts the voice uttered by the singer into an electric signal matching the sound uttered from the speaker 11, … 11 group and the video displayed on the display La and the large display Lb, modulates the infrared rays with the voice electric signal, and transmits the modulated infrared rays M toward the microphone receiver 3.

The microphone receiver 2 demodulates and amplifies an audio electric signal from the infrared ray M emitted from the microphone M, and the amplified analog audio signals 21 and 22 are output from the line output terminal (dual system).

The karaoke jukebox 3 has an HDD (storage device) that stores a plurality of pieces of music data distributed from a distribution server via a network 31.

The karaoke jukebox 3 outputs a digital video signal 32 of the background video of the music, and an audio signal 33 of the analog singing with the music, which is obtained by superimposing the analog audio signal 21 on the side outputted from the microphone receiver 2 and the audio signal of the accompaniment of the pure music, to the audio/video selector 7 from the HDMI output terminal and the line output terminal.

The personal computer 4 connectable to the internet 40 outputs the digital video signal 41 to the audio/video selector 7 through the HDMI output terminal, and outputs the analog audio signal 41 to the 1 st electronic volume k1 through the line output terminal.

The optical Disc player (Blu-ray Disc) 5 is a video device dedicated to playback capable of repeating BD video and DV video, and can play back BD video and DVD video brought into the karaoke room by a singer and a fellow person.

The optical disk player 5 outputs the digital video signal 51 to the audio/video selector 7 from the HDMI output terminal, and outputs the analog audio signal 51 to the 2 nd electronic volume k2 from the line output terminal.

The signal converter 6 is an HDMI converter, and is connected to an output port of a portable terminal 60 provided by the visitor, and outputs the digital video signal 61 to the audio/video selector 7 and the analog audio signal 62 to the 3 rd electronic volume k 3.

The signal converter 6 prepares two types, converting a Lightning output (iPhone system) or an MHL output (android system) into an HDMI output.

The audio/video selector 7 is composed of an

audio mixer

71, 1 st to 3 rd audio signal superimposing circuits 72 to 74, 1 st to 3 rd electronic volumes k1 to k3, and a selector main body 70 having a press detection circuit 75, a microcomputer 76, an LED energizing circuit 77, an electronic switch 78, and an electronic volume operation circuit 79.

The mixer 71 adjusts the signal level of the analog audio signal 22 on the other side output from the microphone receiver 2, and outputs the adjusted audio signal 711 to the 1 st to 3 rd acoustic signal superimposing circuits 72 to 74.

The 1 st electronic sound volume k1 adjusts the signal level of the acoustic signal 42 output from the personal computer 4, and outputs the adjusted acoustic signal 421.

The 1 st acoustic signal superimposing circuit 72 superimposes the adjusted acoustic signal 711 output from the mixer 71 and the adjusted acoustic signal 421 output from the 1 st electronic sound volume k1, and outputs the 1 st voiced sound signal 721 to the selector main body 70.

The 2 nd electronic volume k2 adjusts the signal level of the audio signal 52 output from the optical disc player 5, and outputs the adjusted audio signal 521.

The 2 nd acoustic signal superimposing circuit 73 superimposes the adjusted audio signal 711 output from the mixer 71 and the adjusted acoustic signal 521 output from the 2 nd electronic volume k2, and outputs the 2 nd voiced sound signal 731 to the selector main body 70.

The 3 rd electronic sound volume k3 adjusts the signal level of the acoustic signal 62 output from the signal converter 6, and outputs the adjusted acoustic signal 621.

The 3 rd acoustic signal superimposing circuit 74 superimposes the adjusted audio signal 711 output from the mixer 71 and the adjusted audio signal 621 output from the 3 rd electronic volume k3, and outputs the 3 rd voiced sound signal 741 to the selector main body 70.

The push detection circuit 75 is a circuit for detecting whether or not the 1 st to 4 th buttons b1 to b4 of the 1 st to 4 th push-button switches s1 to s4 and the 1 st and 2 nd buttons p1 and p2 of the 1 st and 2 nd push-button switches g1 and g2 are depressed based on the closing of the electrical contacts of the respective push-button switches.

The LED energizing circuit 77 is a circuit that energizes the 1 st to 4 th light emitting diodes r1 to r4 and the 1 st and 2 nd light emitting diodes e1 and e 2.

The microcomputer 76 of the audio/video selector 7 determines whether or not any of the 1 st to 4 th push-button switches s1 to s4 or the 1 st and 2 nd push-button switches g1 and g2 is pressed as follows.

< judgment on pressing of 1 st to 4 th push-button switches s1 to s4 >

When the switching device is activated, in step s1 of fig. 3, the microcomputer 76 holds all the electrical contacts of the 1 st to 4 th push button switches s1 to s4 as an open state (off state), and proceeds to step s 2.

The on state is considered to mean that the microcomputer 76 maintains the on state in view of the held electrical contact of the push switch.

In step s2 of fig. 3, the microcomputer 76 determines whether or not any button is pressed based on the detection of the press detection circuit 75, and when any button of the 1 st to 4 th buttons b1 to b4 is pressed, it proceeds to step s3, and when none of the buttons is pressed, it stands by in step s 2.

In step s3 of fig. 3, the microcomputer 76 keeps the push button switch whose press was detected in step s2 in the state regarded as being closed (on state), and proceeds to step s 4.

The term "closed" means that the microcomputer 76 maintains the closed state of the held electrical contact of the push switch even if the pressing is released.

In step s4 of fig. 3, the microcomputer 76 instructs the LED energizing circuit 77 to bring the light emitting diode corresponding to the push-button switch whose pressing was detected in step s2 into a lighting state, and lights the corresponding light emitting diode.

In step s5 of fig. 3, the microcomputer 76 determines whether or not another button different from the button of the button switch detected in step s2 (or step s5 of the previous time) has been pressed based on the detection of the press detection circuit 75, and if the button of the other button switch has been pressed (yes), the process proceeds to step s6, and if the button of the other button switch has not been pressed (no), the process stands by in step s 5.

In step s6 of fig. 3, the microcomputer 76 releases the holding of the push-button switch held in the state regarded as the closed state (on state) in step s3, and proceeds to step s 7.

In step s7 of fig. 3, the microcomputer 76 turns off the light emitting diode corresponding to the button switch released in step s6, and proceeds to step s 8.

In step s8 of fig. 3, the microcomputer 76 keeps the push button switch whose press was detected in step s5 in the state regarded as being closed (on state), and proceeds to step s 9.

The term "closed" means that the microcomputer 76 maintains the closed state depending on the held electrical contact of the push switch even if the pressing is released.

In step s9 of fig. 3, the microcomputer 76 puts the light emitting diode corresponding to the push button switch held in the state regarded as being closed (on state) in step s8 in the lighting state, and returns to step s 5.

In the course of executing step s1 to step s9, the microcomputer 76 of the audio/video selector 7 controls the electronic switch 78 based on the push button switch (any of the 1 st to 4 th push button switches s1 to s4) held in the closed state (on state) and the light emitting diode lit in correspondence with the push button switch.

< judgment on pressing of 1 st and 2 nd push-button switches g1 and g2 >

In step st1 of fig. 4, the microcomputer 76 determines whether or not the current connection device is a device other than the karaoke jukebox 3, and if the connection device is a device other than the karaoke jukebox 3 (yes), it proceeds to step st2, and if the connection device is the karaoke jukebox 3 (no), it stands by in step st 1.

In step st2, the microcomputer 76 instructs the electronic volume operating circuit 79 so that the attenuation amount of the 1 st to 3 rd electronic volumes k1 to k3 becomes 50%, and proceeds to step st 3.

In step st3, when the microcomputer 76 detects only the additional pressing of the 1 st push switch g1 based on the signal from the pressing detection circuit 75, the process proceeds to step st4, and when the additional pressing is not detected (no), the process proceeds to step st 8.

In step st4, the microcomputer 76 instructs the electronic volume operating circuit 79 to decrease the attenuation amount of the 1 st to 3 rd electronic volumes k1 to k3 (-1% for the 1 st click operation), and proceeds to step st 5.

The microcomputer 76 instructs the LED energizing circuit 77 in step st5 so that the 1 st light emitting diode e1 is lit, and proceeds to step st 6. Thereby, the 1 st light emitting diode e1 is turned on (the pressing period of the 1 st push button switch g 1).

In step st6, the microcomputer 76 determines whether or not the additional pressing of the 1 st push button switch g1 has been successfully released based on the signal from the pressing detection circuit 75, and if the additional pressing has been successfully released (yes), the process proceeds to step st7, and if the additional pressing is in progress (no), the process returns to step st 5.

The microcomputer 76 instructs the LED energizing circuit 77 to turn off the 1 st light emitting diode e1 in step st7, and proceeds to step st 3. Thereby, the 1 st light emitting diode e1 is turned off (when the 1 st push button switch g1 is released).

In step st8, when the microcomputer 76 detects only the additional pressing of the 2 nd push button switch g2 based on the signal from the pressing detection circuit 75, the process proceeds to step st9, and when no additional pressing is detected (no), the process returns to step st 3.

In step st9, the microcomputer 76 instructs the electronic volume operating circuit 79 to increase the attenuation amount of the 1 st to 3 rd electronic volumes k1 to k3 (1 click operation + 1%), and proceeds to step st 10.

In step st10, the microcomputer 76 instructs the LED energizing circuit 77 to cause the 2 nd light emitting diode e2 to light up, proceeding to step st 11. Thereby, the 2 nd light emitting diode e2 is turned on (the pressing period of the 2 nd push button switch g 2).

In step st11, the microcomputer 76 determines whether or not the additional pressing of the 2 nd push button switch g2 has been successfully released based on the signal from the pressing detection circuit 75, and if the additional pressing has been successfully released (yes), the process proceeds to step st12, and if the additional pressing is being performed (no), the process returns to step st 10.

In step st12, the microcomputer 76 instructs the LED energizing circuit 77 so as to turn off the 2 nd light emitting diode e2, returning to step st 3. Thereby, the 2 nd light emitting diode e2 is turned off (when the press of the 2 nd push button switch g2 is released).

The electronic switch 78 is composed of a semiconductor (transistor, FET, etc.), and switches the connection with the four audio/video devices (karaoke jukebox 3, personal computer 4, optical disc player 5, signal converter 6) and the video devices (large display Lb, display Ls) and the audio device 1 (amplifier 12) as described below.

The microcomputer 76 operates the electronic switch 78 while the 1 st push-button switch s1 is kept in the on state, and guides the digital video signal 32 of the music background video output from the karaoke jukebox 3 to the large display Lb and the display La via the distributor sp, and guides the analog singing audio signal 33 output from the karaoke jukebox 3 to the amplifier 12 of the audio apparatus 1. In addition, the microcomputer 56 instructs the LED energizing circuit 77 to energize the 1 st light emitting diode r 1.

When the 2 nd push switch s2 is held in the on state, the microcomputer 76 operates the electronic switch 78 to guide the digital video signal 41 output from the personal computer 42 to the large-format display Lb and the display La through the distributor sp, and guides the analog 1 st audio signal 721 output from the 1 st audio signal superimposing circuit 72 to the amplifier 12 of the audio apparatus 1.

In addition, the microcomputer 56 instructs the LED energizing circuit 77 to energize the 2 nd light emitting diode r 2.

In a state where the 3 rd push switch s3 is electrically held in a closed state (on state), the microcomputer 76 operates the electronic switch 78 to guide the digital video signal 51 output from the optical disk player 5 to the large-format display Lb and the display La via the distributor sp, and to guide the analog 2 nd audio signal 731 output from the 2 nd audio signal superimposing circuit 73 to the amplifier 12 of the audio apparatus 1. In addition, the microcomputer 76 instructs the LED energizing circuit 77 to energize the 3 rd light emitting diode r 3.

In a state where the 4 th push-button switch s4 is electrically held in a closed state (on state), the microcomputer 76 operates the electronic switch 78 to guide the digital video signal 61 output from the signal converter 6 as the HDMI converter to the large-format display Lb and the display La via the distributor sp, and to guide the analog 3 rd audio signal 741 output from the 3 rd audio signal superimposing circuit 74 to the amplifier 12 of the audio apparatus 1.

In addition, the microcomputer 76 instructs the LED energizing circuit 77 to energize the 4 th light emitting diode r 4.

The karaoke device switching apparatus a of embodiment 1, which is excellent in usability, has the following advantages.

Since there are a plurality of audio/video devices (karaoke jukebox 3, personal computer 4, optical disc player 5, and portable terminal 60) to be switched, there is a variation in the audio signals output from the respective audio/video devices, and a level difference (inability to sing comfortably) is likely to occur between the audio signal of the microphone M and the audio signal of the respective audio/video devices.

However, the karaoke device switching apparatus a of the present embodiment, which is excellent in usability, is configured such that when a store operator repeatedly clicks and releases the button of the 1 st push switch g1 or the button of the 2 nd push switch g2 of the switch box S in a state where a device other than the karaoke jukebox 3 is selected, the electronic volume operation circuit 79 decreases or increases the attenuation amount of the 1 st to 3 rd electronic volumes k1 to k 3.

With this configuration, the user can easily match the signal level of the audio signal output from the personal computer 4, the optical disk player 5, or the mobile terminal 60 with the signal level of the singing-user-associated audio signal 71 output from the audio mixer 71 by repeatedly clicking the 1 st switch g1 and the 2 nd push button switch g2 of the switch box S, and the usability of the user is improved.

Further, since the 1 st lamp e1 or the 2 nd lamp e2 is turned on when the 1 st and 2 nd push button switches g1 and g2 are pressed, the store owner can confirm that the double click operation for level matching is accepted by observing the lamp lighting state.

When a singer or fellow person who has arrived at the karaoke shop presses any of the 1 st to 4 th buttons b1 to b4 of the 1 st to 4 th button switches s1 to s2 with a finger and then releases the finger, the four devices (the karaoke jukebox 3, the personal computer 4, the optical disk player 5, and the portable terminal 60) can be easily switched.

Since the 1 st to 4 th push-button switches s1 to s4 are single-pole switches, when any of the 1 st to 4 th push-buttons b1 to b4 is pressed (the electrical contact points are closed during pressing), the 1 st to 4 th light-emitting diodes r1 to r4 corresponding to the pressed 1 st to 4 th push-button switches s1 to s4 are turned on, and thus it is possible to determine which device is currently connected to the large-format display Lb, the display La, and the amplifier 12 at a glance.

That is, when the 1 st to 4 th light emitting diodes r1 to r4 are viewed, the user can easily determine which device (the karaoke jukebox 2, the personal computer 4, the optical disc player 5, and the portable terminal 60) is usable.

Further, since the 1 st to 4 th push-button switches S1 to S4 and the 1 st and 2 nd push-button switches g1 and g2 for switching the connected devices are single-blade push-button switches, the switches can be easily pressed and the thickness of the switch box S in which the switches are arranged can be reduced.

The karaoke apparatus switching device a of example 1, which is excellent in usability, can perform singing using the same microphone M even when a device other than the karaoke jukebox 3 is used. In addition, the level of the analog sound signal 32 of the microphone receiver 3 can be adjusted by the mixer 71.

The karaoke apparatus switching device a of the embodiment 1, which is excellent in usability, does not affect the score function of the karaoke jukebox 3 because the microphone receiver 3 outputs the two-system voice signals 31, 32 and the one-system voice signal 21 is input to the karaoke jukebox 3.

When a person coming to a karaoke shop easily enjoys entertainment other than karaoke without using the karaoke jukebox 3 and the microphone M, as described below, by himself or herself or with a friend of the store, the karaoke apparatus switching device a with good usability can reduce or increase the attenuation amount of the 1 st to 3 rd electronic sound volumes k1 to k3 by the repeated click operation of pressing and releasing the button of the 1 st button switch g1 or the button of the 2 nd button switch g2 of the switch box S, and thus is good in usability.

The online movie distribution site is accessed using the desktop personal computer 42, and a movie is viewed on a large screen with a large-power audio device together with friends.

The desktop personal computer 42 is used to access a foreign sports live broadcast delivery site, and enjoy the sports live broadcast with friends in a large screen and powerful audio.

The online game site is accessed using the desktop personal computer 42, and a game is played with a large screen and powerful audio.

The movie distribution site is accessed using the desktop personal computer 42, and the friends view the movie of the site on a large screen together with powerful audio.

< modification example >

a. The microphone M may be a microphone using a radio wave obtained by modulating a carrier wave with an audio signal, or may be a moving-coil microphone.

b. The mobile terminal described in each claim may be a mobile game device (Playstation or the like) that can be taken into a karaoke room, in addition to a smartphone (android, Iphone apple).

c. In the state where the karaoke apparatus switching device a having good usability in example 1 selects an apparatus other than the karaoke jukebox 3, the attenuation amounts of the electronic sound volumes k1 to k3 of the 1 st to 3 rd buttons k1 to k3 are decreased or increased when the store-coming person performs the repeated click operation of pressing and releasing the 1 st button p1 of the 1 st button switch g1 or the 2 nd button p2 of the 2 nd button switch g2 of the switch box S, and the attenuation amounts of the electronic sound volumes k1 to k3 of the 1 st to 3 rd buttons may be greatly decreased or increased when the long press operation of long-pressing and releasing the 1 st button p1 of the 1 st button switch g1 or the 2 nd button p2 of the 2 nd button switch g2 is performed (corresponding to claim 2).

When the difference between the signal level of the audio signal output from the personal computer 4, the optical disc player 5, or the mobile terminal 60 and the signal level of the adjusted audio signal 71 with the singer voice output from the audio mixer 71 is large, the long-press operation of long-pressing and releasing the 1 st button p1 of the 1 st button switch g1 or the 2 nd button p2 of the 2 nd button switch g2 is performed, and when the difference in the signal levels starts to decrease, the 1 st button p1 of the 1 st button switch g1 or the 2 nd button p2 of the 2 nd button switch g2 may be repeatedly clicked.

Therefore, the signal level of the sound signal output from the personal computer 4, the optical disk player 5, or the portable terminal 60 can be matched with the signal level of the adjustment completion sound signal of the singer's voice output from the mixer 71 in a short time.

Description of the reference symbols

1 Acoustic device

2 microphone receiver

3 kara OK dibbler

4 personal computer

5 CD player

6 signal converter

7 sound and video selector

11 loudspeaker

12 amplifier

21 analog voice signal (voice signal) of one side

22 analog sound signal (sound signal) of the other side

31 network

32 video signal

33 acoustic signal with singing

41 video signal

42 sound signal

51 video signal

52 acoustic signal

60 Portable terminal

61 video signal

62 acoustic signal

71 audio mixer

721 st signal superposition circuit

73 nd 2 signal superposition circuit

74 3 rd signal superposition circuit

75 press detection circuit

76 micro-computer

77 LED energizing circuit

78 electronic switch

79 electronic sound volume

k1 electronic volume 1

k 22 nd electronic volume

k3 electronic volume 3

421 adjusting the sound signal

431 adjust complete audible signal

441 adjust the completion of the audible signal

711 adjusted finished sound signal

721 adjust the done Acoustic Signal

731 adjusted finished acoustic signal

741 adjusts the completion of the audible signal

S switch box

M microphone

m modulated rear infrared (infrared)

s 11 st button switch

s2 push-button switch 2

s3 push button switch No. 3

s4 push-button switch No. 4

b1 push button 1

b2 push button 2

b3 push button No. 3

b4 No. 4 button

r1 No. 1 lamp

r2 No. 2 lamp

r3 No. 3 lamp

r4 No. 4 lamp

g 11 st button switch

g2 push-button switch 2

b1 No. 1 Lamp

b2 No. 2 lamp

Lb large display (video device)

La display (video device)

k1 electronic volume 1

k 22 nd electronic volume

k3 electronic volume 3

A kara OK equipment switching device

Claims

1. A karaoke device switching apparatus (A) with good usability, comprising:

a box-shaped switch box (S) which is placed in the karaoke room, and the upper surface of which is arranged with: 1 st to 4 th push-button switches (s1, s2, s3, s4) for switching a normally open single-pole single-throw device in which each electrical contact is closed when the 1 st to 4 th push-buttons (b1, b2, b3, b4) are pressed, 1 st to 4 th lamps (r1, r2, r3, r4) for confirming the device disposed in the vicinity of the 1 st to 4 th push-button switches (s1, s2, s3, s4), 1 st and 2 nd push-button switches (g1, g2) for adjusting the acoustic signal level of a normally open single-pole single-throw device in which each electrical contact is closed when the 1 st and 2 nd push-buttons (p1, p 4642) are pressed, and 1 st and 2 nd push-button switches (g 632, g2) for confirming the operation (e 53, 2) disposed in the vicinity of the 1 st and 2 nd push-button switches (g1, g 2);

an acoustic device (1), the acoustic device (1) being disposed in the karaoke room, the acoustic device including a speaker (11) group and an amplifier (12);

video devices (La, Lb) which are provided in the karaoke room and can display moving images and still images;

a microphone (M) for use in the karaoke room, for converting a voice uttered by a singer into a voice electric signal, and superimposing the voice electric signal with infrared rays and electric waves;

a microphone receiver (2) which is installed in the karaoke room, acquires infrared rays (m) and electric waves on which the audio electric signals are superimposed, demodulates and amplifies the audio electric signals, and outputs the amplified audio signals (21, 22) in a dual system;

a karaoke jukebox (3) installed in a karaoke room and having a storage device for storing a plurality of pieces of music data transmitted from a distribution server via a network (31), the karaoke jukebox (3) outputting a video signal (32) of a background video of the music and a vocal signal (33) with singing obtained by superimposing a vocal signal (21) on one side outputted from the microphone receiver (2) and a vocal signal of a pure performance of the music;

a personal computer (4) which is placed in the karaoke room, can be connected to the internet (40), and outputs a video signal (41) and an audio signal (42);

a disk player (5) which is installed in the karaoke room, can reproduce various disks, and outputs a video signal (51) and an audio signal (52);

a signal converter (6), wherein the signal converter (6) is connected with an output port of a portable terminal (60) brought into the karaoke room, and outputs a video signal (61) and an audio signal (62); and

a stereo video selector (7), the stereo video selector (7) and the switch box (S) are electrically connected through a connecting cable, and the stereo video selector comprises: a mixer (71), wherein the mixer (71) adjusts the signal level of the other side sound signal (22) output by the microphone receiver (2) and outputs an adjusted sound signal (711); a first electronic volume (k1) that adjusts the signal level of the sound signal (42) output from the personal computer (4) and outputs an adjusted sound signal (421); a second electronic volume (k2) which adjusts the signal level of the audio signal (52) outputted from the optical disc player (5) and outputs an adjusted audio signal (521); a third electronic volume (k3) that adjusts the signal level of the sound signal (62) output from the signal converter (6) and outputs an adjusted sound signal (621); a 1 st signal superimposing circuit (72), wherein the 1 st signal superimposing circuit (72) superimposes the adjusted sound signal (711) output from the mixer (71) and the adjusted sound signal (421) output from the first electronic volume (k1) to output a 1 st voiced sound signal (721); a 2 nd signal superimposing circuit (73), wherein the 2 nd signal superimposing circuit (73) superimposes the adjusted sound signal (711) output from the mixer (71) and the adjusted sound signal (521) output from the second electronic volume (k2) to output a 2 nd voiced sound signal (731); a 3 rd signal superimposing circuit (74) that superimposes the adjusted audio signal (711) output from the mixer (71) and the adjusted audio signal (621) output from the third electronic volume (k3) by the 3 rd signal superimposing circuit (74) and outputs a 3 rd voiced sound signal (741); a press detection circuit (75) for detecting presses of the 1 st to 4 th push-button switches (s1, s2, s3, s4) and the 1 st and 2 nd push-button switches (g1, g2) (b1, b2, b3, b4, p1, p2) by closing the respective electrical contacts, wherein the press detection circuit (75) detects the presses of the first to 4 th push-button switches (s1, s2, s3, s 4); a microcomputer (76); a lamp energizing circuit (77), wherein the lamp energizing circuit (77) energizes the 1 st to 4 th lamps (r1, r2, r3, r4) and the 1 st and 2 nd lamps (e1, e 2); an electronic switch (78); and an electronic volume operating circuit (79),

the microcomputer (76) performs the following operations:

if the press detection circuit (75) detects only the press of the 1 st button (b1), operating the electronic switch (78) so that the video signal (32) and the vocal signal (33) of the karaoke jukebox (3) are input to the video devices (La, Lb) and the amplifier (12) of the audio device (1), respectively, and instructing the lamp energizing circuit (77) to energize the 1 st lamp (r 1);

when the press detection circuit (75) detects only the press of the 2 nd button (b2), the electronic switch (78) is operated so that the video signal (41) and the 1 st voiced sound signal (721) output from the personal computer (4) are input to the video devices (La, Lb) and the amplifier (12) of the sound device (1), respectively, and the lamp energizing circuit (77) is instructed to energize the 2 nd lamp (r 2);

when the press detection circuit (75) detects only the press of the 3 rd button (b3), the electronic switch (78) is operated so that the video signal (51) and the 2 nd voiced sound signal (731) outputted from the optical disk player (5) are inputted to the video devices (La, Lb) and the amplifier (12) of the audio device (1), respectively, and the lamp energizing circuit (77) is instructed to energize the 3 rd lamp (r 3);

when the press detection circuit (75) detects only the press of the 4 th button (b4), the electronic switch (78) is operated so that the video signal (61) and the 3 rd audio signal (741) output from the signal converter (6) are input to the video devices (La, Lb) and the amplifier (12) of the audio device (1), respectively, and the lamp energizing circuit (77) is instructed to energize the 4 th lamp (r 4);

when the press detection circuit (75) detects a repeated click operation of only the 1 st button (p1) of the 1 st button switch (g1) for adjusting the level of the acoustic signal in a state where the apparatus other than the karaoke jukebox (3) is selected, the electronic volume operation circuit (79) decreases the attenuation amounts of the electronic volumes (k1, k2, k3) of the 1 st to 3 rd buttons, and instructs the lamp energizing circuit (77) to energize the 1 st lamp (e1) when the 1 st button (p1) of the 1 st button switch (g1) is pressed;

when the press detection circuit (75) detects a repeated click operation of only the 2 nd button (p2) of the 2 nd button switch (g2) for adjusting the level of the acoustic signal in a state where the device other than the karaoke jukebox (3) is selected, the electronic volume operation circuit (79) increases the attenuation amount of the electronic volumes (k1, k2, k3) of the 1 st to 3 rd buttons, and instructs the lamp energizing circuit (77) to energize the 2 nd lamp (e2) when the 2 nd button (p2) of the 2 nd button switch (g2) is pressed.

2. The karaoke device switching apparatus (a) according to claim 1, wherein said microcomputer (76) performs the following operations:

when the press detection circuit (75) detects a long press operation of releasing only the 1 st button (p1) of the 1 st button switch (g1) for adjusting the level of the acoustic signal in a state where the apparatus other than the karaoke jukebox (3) is selected, the electronic volume operation circuit (79) greatly reduces the attenuation amount of the 1 st to 3 rd electronic volumes (k1, k2, k3) and instructs the lamp energizing circuit (77) to energize the 1 st lamp (e1) when the 1 st button (p1) of the 1 st button switch (g1) is pressed for a long time;

when the press detection circuit (75) detects a long press operation of long pressing and releasing only the 2 nd button (p2) of the 2 nd button switch (g2) for adjusting the level of the acoustic signal in a state where the device other than the karaoke jukebox is selected, the electronic volume operation circuit (79) greatly increases the attenuation amount of the 1 st to 3 rd electronic volumes (k1, k2, k3), and instructs the lamp energizing circuit (77) to energize the 2 nd lamp (e2) when the 2 nd button (p2) of the 2 nd button switch (g2) is long pressed.