JP3204222B2 - Karaoke playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an MPEG (Moving Picture Experts Group) as a high-efficiency moving picture coding system.
The present invention relates to a karaoke reproducing apparatus for reproducing a karaoke disk on which a digital video signal and a digital audio signal compressed according to a standard are recorded.

[0002]

2. Description of the Related Art In recent years, in the field of business or consumer use,
It is well known that a karaoke reproducing apparatus that sings a desired song along a melody using a microphone while reproducing a karaoke disk is frequently used.

A plurality of songs (hereinafter referred to as software) are recorded on a karaoke disk used in the karaoke reproducing apparatus in advance. The plurality of pieces of software include audio information and image information including lyrics and melodies.

Also, a plurality of karaoke disks are stored in a rack, desired software is selected from a quick reference table during karaoke performance, and a karaoke disk containing the desired software is taken out of the rack and played. .

[0005]

By the way, since a karaoke disk used in the above-described karaoke reproducing apparatus contains a still image as image information, for example,
Although it is suitable for displaying the lyrics on the monitor sequentially as the karaoke song progresses and for the convenience of the singer, the movement of the screen is poor for listeners who watch the same monitor, so that a moving image with change is required. Was. Further, in the karaoke reproducing apparatus described above, the reproducing unit for reproducing the selected karaoke song and the output unit for outputting the image and sound of the selected karaoke song can be separately installed in different places. Did not.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been made in consideration of the above-mentioned problems .
Appearance and playback characteristics that meet the specifications
Karaoke disc with an information track with
Therefore, the data area contains one of many karaoke songs.
Digital video signal per hit image is MPEG standard
Divides and records the compressed video signal data compressed by
A number of sectors, located immediately after said number of sectors and
The digital audio signal relating to the audio of the image is MP
Record compressed audio signals that have been compressed according to the EG standard.
The set of sectors to be recorded is one set.
As many as the number of Laoke songs are arranged in sequence, and the data
The area includes the compressed video signal and the compressed audio.
The read rate at which the signal is time-division multiplexed and output is the CD-
Be within the range of ROM disk read rate
And a number of previously prepared cards
Many karaoke songs recorded on Laoke discs
Karaoke playback to select and play the desired karaoke song
A live device, wherein the selected karaoke songs are
For any karaoke disc
A search unit for searching whether the information is recorded ,
Play the specified karaoke disc
The compressed video signal relating to the selected karaoke song
And compressed data obtained by time-division multiplexing the compressed audio signal.
A reproducing unit for outputting a data signal, prior to output from the reproducing unit
A data decompression unit that performs data decompression on the compressed data signal in a complementary manner to the data compression and demodulates the digital video signal and the digital audio signal, thereby outputting the digital video signal and the digital audio signal in synchronization with the image and voice of the selected karaoke tune. , Said playback
The compressed data signal output from the data expansion unit
On the playback of the selected karaoke songs transmitted to
A karaoke reproducing apparatus, comprising: communication means interposed between the reproduction section and the data decompression section so as to perform data communication.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a karaoke reproducing apparatus according to the present invention will be described below with reference to FIGS.
<Karaoke reproducing device> will be described in detail in this order. <Karaoke Disk> FIG. 5 is a diagram showing the recorded information in the karaoke disk.

A karaoke disk is a well-known CD-ROM.
It has the appearance and reproduction characteristics that satisfy the disc standard. As described below, a plurality of music pieces ( Karaoke software) is sequentially recorded for each song in sector units.

That is, in order to achieve compatibility with a CD-ROM disc, a data transfer rate (read rate) of 1.5
In order to satisfy Mb / s, the readout rate of the data-compressed digital video signal is 1.15 Mb / s, the readout rate of the data-compressed digital audio signal is 0.224 Mb / s, and both of these data-compressed digital audio signals are read out. The signal is time-division multiplexed and its read rate is set to 1.3.
By setting it to 9 Mb / s, the reading rate was kept within the range of 1.5 Mb / s.

The reason is that the upper limit frequency of the video signal is set to 4.2 MHz, and the read rate of the digital video signal which is not subjected to A / D conversion and data compression is 100 Mb.
/ S is required, and the upper limit frequency of the audio signal is set to 20 kHz, and the read rate of the digital audio signal which is not subjected to A / D conversion and data compression is 1.4M.
Since b / s is required, the read rate of a signal obtained by time-division multiplexing these two signals is 101.4 Mb / s, which greatly exceeds the read rate of 1.5 Mb / s. This is because the disc specification cannot be satisfied.

Therefore, the data compression ratio of the digital video signal becomes 1/87 and the data compression ratio of the digital audio signal becomes 1 / 6.3 by data compression.

The above-mentioned karaoke disk formed by a board making technique corresponding to a well-known CD-ROM disk mainly contains a plurality of karaoke software, and specifies a software number corresponding to the arrangement order of music pieces. It is configured so that random access reproduction can be performed by simply performing the operation.

Here, a series of data signals recorded on the karaoke disk 1 will be described.

[0014] As shown in FIG.
A well-known TOC area 2a, a menu area 2b, and a data area 2c, which are lead-in portions of the information track 2, are sequentially recorded. Here, only the vicinity of the reproduction start head of the information track 2 is shown.

In the above-mentioned TOC area 2a, a lead-in signal for confirming that reproduction has been started by using a reproduction optical pickup (not shown) is recorded.

The above-described menu area 2b stores intro information and menu information for each of a plurality of software programs recorded on the disc 1, and these are recorded in JIS code as character / symbol code signals.

The menu information is composed of bibliographic items such as the disc number of the disc 1, the software number of each music piece, the title character of each software, the singer's name, and the lyrics. The menu information reproduced by the karaoke reproducing apparatus 10 described later is transmitted to the printer 5 via the personal computer 30.
0 is printed on the recording paper 51 and used as a quick reference table 70 of the music (shown in FIGS. 1 and 4B, respectively). Note that this menu information is recorded in the form of a digital video signal without being coded as a character / symbol code signal in this manner, and this digital video signal is directly printed out by the printer 50 without passing through the personal computer 30. Is also possible. However, in this case, since the menu information cannot be edited and arranged for each disc number and for each software number, the menu information is printed out in the reproduction order of the digital video signals. Further, the disc number and software number in the menu information are coded so that they can be read by scanning the quick reference table 70 with a bar code reader 71 described later (shown in FIG. 4A).

The intro information recorded together with the menu information described above includes a melody of a singing portion of a song or a part of lyrics of a singing portion edited in units of a plurality of songs, in the form of a digital audio signal. In order to select the intro information, the intro information corresponding to each software is individually coded with a disc number and a software number, respectively, and is coded and superimposed.

It should be noted that only the menu information or the intro information may be recorded in the menu area 2b. Further, the menu information and the intro information may be recorded on either the outer peripheral portion or the inner peripheral portion of the disc. However, it is needless to say that the menu information and the intro information are recorded at a place where there is no problem during a normal karaoke performance.

The data area 2c is composed of a plurality of sectors 2c1 to 2cn and tracks 2c11, and the digital video signal of which data is compressed for the first music is sequentially recorded in the sectors 2c1 to 2c4, 2c6 and 2c7. The data-compressed 2-channel stereo digital audio signal corresponding to each of the digital video signals recorded in sectors 2c1-2c4 is sector 2
recorded in c5. Further, signals for various controls are recorded in the sector 2cn. Further, a track 2c11 provided as necessary stores sound field data relating to the music, and the sector 2c is used during reproduction.
5 is output from an audio channel different from the audio signal recorded on the
64 is emitted. <Karaoke Reproducing Apparatus> FIG. 1 is a system configuration diagram of a karaoke reproducing apparatus according to the present invention, FIG. 2 is a block diagram of an embodiment of a karaoke reproducing apparatus according to the present invention, and FIG. FIG. 4 is a diagram showing a use state of the quick reference table.

The system configuration of the karaoke reproducing apparatus is shown in FIG.
As shown in FIG. 1, a karaoke reproducing apparatus 10, a personal computer 30, a printer 50, a large color video monitor 60, a color video monitor 61 with a stand, a microphone 6
2. It consists of speakers 63,63.

The above-mentioned karaoke reproducing apparatus 10 reproduces the karaoke disks 1 stored therein in a large number (for example, 360 sheets) after selecting the karaoke disks 1 according to the selection of the music piece by the user. As described above, a large number of songs (up to 18 songs, 74
Video data of moving images, two-channel audio, and data related to the song (disc number, software number, song title, singer name, etc.) are recorded for each minute. Is reproduced and output as needed. The video signal reproduced from the karaoke reproducing apparatus 10 is outputted to the color video monitors 60 and 61, respectively, and reproduced.
The data related to the music is output to the personal computer 30, where the data is processed in accordance with the desired editing, and then printed on the recording paper 51 by the printer 50. The sound field speakers 64, 64 are connected as needed.

Here, the above-mentioned karaoke reproducing apparatus 10 will be described with reference to FIGS.

The karaoke reproducing apparatus 10 comprises a changer mechanism section 11, player sections 12 and 13, a data expansion section 14, and a controller 15. The changer mechanism section 11 includes a changer controller 11a and a communication module 11b, and the player sections 12 and 13 include player controllers 12a and 13a. The data decompression unit 14 includes a communication module 14a, a data separation unit 14
b, a controller 14c, a video signal decompression unit 14d, an audio signal decompression unit 14e, and a code signal processing unit 19. The controller 15 has a remote control receiver 15a. Data expansion unit 14 described above
Medium, the data expansion characteristics of the video signal expansion unit 14d and the audio signal expansion unit 14e are
It has characteristics complementary to data compression characteristics when digital video signals and digital audio signals are data-compressed according to the G standard. Further, the code signal processing section 19 outputs the character / symbol code signal recorded in the JIS code to the menu area 2b of the karaoke disc 1 as the original character / symbol code signal, or records it as a digital video signal. The menu information is output as a video signal.

Next, the reproducing operation of the karaoke reproducing apparatus 10 will be described.

First, the user selects a desired music piece (software number) by operating an operation button (not shown) of the controller 15 or the remote control unit 17 described above.

In response, the controller 15 temporarily stores the selected software number and displays the selected software number on a display (not shown). In parallel with this operation, based on the built-in software number versus disk number comparison data, a search is made for the disk number of the disk on which the program of the selected software number is recorded, and in response to the search result, Based on the built-in disk number vs. disk storage part address number comparison data, a search is made to find which part of the disk storage rack (not shown) stores the disk of the disk number. On the basis of the search data thus obtained, a drive control signal for removing the disk stored in the storage part with the address number is output from the output terminal 15b to the input terminal 11a1 of the changer mechanism 11. .

The changer controller 11a of the changer mechanism section 11 drives and controls a disk carrier (not shown) as follows based on the applied drive control signal. That is, the disk carrier is changed from the standby state to the driving state, and is first moved at a high speed toward the storage part where the disk is stored, moved at a low speed when approaching the storage part, and stopped when reaching the position of the storage part. You. After this,
When the disk stored in the storage portion is taken out and mounted on the mounting portion of the disk carrier, the disk carrier changes from the stopped state to the driving state, and the player unit 1
The disk is transported at high speed in the direction of 2. Thus, the disc is placed on the turntable (not shown) of the player unit 12. Thereafter, the disk carrier enters the standby state again.

Prior to the above case, the controller 15
Recognizes that a disc is not loaded on any of the player sections 12 and 13, and in that case, recognizes that the player section 1
Needless to say, a control signal for loading the discs in the order of 2, 13 is output to the changer controller 11a of the changer mechanism section 11.

Thereafter, when the operation button (not shown) of the controller 15 or the remote control unit 17 is operated again to newly select a music piece, a disk containing the selected music piece is recorded in the same manner as described above. Can be placed on a turntable (not shown) of the player unit 13.

The player controller 12a of the player section 12 (or the player controller 13a of the player section 13) sends a rotation control signal for rotating the turntable on which the disc is mounted at a constant linear velocity to a motor (not shown). Output to As a result, the motor changes from the stop state to the constant speed rotation state, and rotates the turntable at a constant speed. In this state, the disk is reproduced and scanned by an optical pickup (not shown) to output a reproduced data signal.

In this manner, a series of data signals (character / symbol code signals, video signals, audio signals) having the above-described configuration are reproduced, and the player unit 12 (or the player unit) is transmitted via the bus line 16a1 (or the bus line 16a2). 13) is supplied to the communication module 11b of the changer mechanism unit 11, where it is converted into a predetermined communication format, and then supplied to the communication module 14a of the data decompression unit 14 via the communication line 16b. By the way,
The communication modules 11b and 14a are well-known RS232C. The communication module 14a reversely converts a signal that has been converted into a predetermined communication format and transmitted by the communication module 11b, and outputs an original series of data signals.

Meanwhile, the digital data signal supplied to the data decompression unit 14 is output to the data separation unit 14b via the bus line 16c. In addition, separately from the above, the changer mechanical unit 11 (changer controller 1)
1a and the communication module 11b), control signals (for example, reproduction start signals) sequentially supplied according to the various operations selected by the controller 15 described above pass through the communication module 14a of the data decompression unit 14, Line 16d
Is supplied to the controller 14c.

The controller 14c controls all the components inside the data decompression unit 14, and is controlled by a line 16d.
And outputs a control signal to start the separation of the digital data signal to the data separation unit 14b based on the control signal provided through In response, the data separation unit 14b separates and outputs a series of digital data signals supplied from the bus line 16c as a character / symbol code signal, a data-compressed video signal, and a data-compressed audio signal. Here, as a method of separating the data signal, a signal obtained by time-division multiplexing of the three signals described above is recorded on the disk 1 as a series of data signals. Is to be separated.

Of the separated signals, the data-compressed video signal is sent to the video signal decompression unit 14d, and the data-compressed audio signal is sent to the audio signal decompression unit 1d.
4e, and the character / symbol code signal is supplied to the code signal processing unit 19 via the bus line 16e. At the same time, the controller 14c sends a decompression start signal for performing data decompression to the video signal decompression unit 14d and the audio signal decompression unit 1 via lines 16f and 16g.
4e.

The video signal decompression unit 14d decompresses the supplied data-compressed video signal,
The composite video signal and the Y / C separated video signal are subjected to D / A conversion and output simultaneously. The Y / C video signal is output from a video output terminal (so-called S terminal) 14d11, and the three-channel composite video signal is output from video output terminals 14d12 to 14d14. By selectively connecting the color video monitors 60 and 61 to the video output terminals 14d11 to 14d14, video images of moving images can be reproduced.

The audio signal expansion section 14e expands the data of the supplied data-compressed audio signal, and then performs D / A conversion to output a 2-channel audio signal. This audio signal is for L and R channels.
The audio is output from the audio output terminals 14e11 and 14e12. These audio output terminals 14e11, 14e
By connecting the above-mentioned speakers 63 to 63, 2-channel stereo sound can be reproduced.

The code signal processing section 19 outputs the JIS-coded character / symbol code signal recorded in the JIS code as the original character / symbol code signal.
Alternatively, menu information recorded as a digital video signal is output as a video signal. The character / symbol code signal is output from the quick look-up table data output terminal 19a, and the video signal of the menu information is output from the tune name display dedicated data output terminal 19b. By connecting the above-mentioned personal computer 30 to the quick-reference table data output terminal 19a via the interface 18, the printer 50 is operated to display the quick-reference table on the recording paper 51 (FIG. 4).
Can be printed out. Also, by connecting a display (not shown) to the song title display dedicated data output terminal 19b, the song title can be displayed.

As described above, when all the data decompression operations in the data decompression unit 14 having the above configuration are completed, the controller 14c sends an end signal indicating that the data decompression operation is completed to the communication modules 14a and 11b and the changer controller 11a. The output is sent to the controller 15 via the above.

Thus, the karaoke reproduction of the selected one tune ends.

Here, the personal computer 30 and the printer 50 will be described.

The personal computer 30 has a storage function and an organizing function (editing function), and includes a storage section, a key operation section, an organizing section, a display section, and a code converting section. That is, the characters / characters processed by the above-described code signal processing unit 19 via the interface 18
The symbol code signal is stored in the storage unit described above. This storage unit has a capacity to store a plurality of menu information. Here, the key operation unit is operated to arrange a large amount of menu information stored in the storage unit into a predetermined format by the organizing unit. That is, the predetermined format is the quick reference table 7 shown in FIG.
This is a pattern to be printed out to 0. As the method of organizing by the organizing unit, various organizing methods are possible such as, for example, organizing the titles of the menu information in the order of "aiueo" so that they can be printed out, or by each singer name. Further, the disc number in the menu information can be replaced according to the storage number of a rack (not shown). The data being organized can be organized while looking at the display. The menu information arranged and coded in a predetermined format is converted into regular characters / symbols by a character / symbol conversion unit, and then printed by the printer 50 to create a quick reference table 70. Thereby, for example, the menu information of the karaoke disk containing the latest software can be immediately printed as a quick reference table 70 after being arranged in a predetermined format, so that the user does not lose bookbinding time, and It becomes very convenient.

As described above, if the barcode reader 71 (shown in FIG. 4A) is recorded as menu information so that it can be used, the barcode-printed quick reference table 70 is used to select the desired software. The menu can be selected without key-in operation, and the selected menu can be registered in the karaoke reproducing apparatus 10 by operating the remote control as it is, which is very convenient. When the menu information is recorded as a video signal without being coded as described above, the track number of the disc is designated and stored in a frame memory (not shown), and the quick reference table 70 is transmitted from the printer 50.
Can also be created. However, in this case, it is impossible to arrange the menu information.

[0044]

According to the karaoke reproducing apparatus of the present invention, a communication unit is interposed between a reproducing unit for reproducing a selected karaoke song and a data decompressing unit for outputting an image and sound of the selected karaoke song. By doing so, it is configured so that communication between the reproduction unit and the data decompression unit is possible,
Even if the playback unit and the data decompression unit are separated and installed in different places, communication between them is always maintained by the communication means, so the karaoke songs selected by the playback unit are separated from the playback unit. Since the data decompression unit can reproduce the image and the sound, the karaoke reproducing apparatus of the present invention has an effect that the reproduction unit and the data decompression unit are separated from each other and there is no restriction on the installation location. For this reason, for example, when a plurality of communication means are installed radially from one central reproduction unit and one data decompression unit is connected to each communication unit, or when one reproduction unit and one reproduction unit are connected. One data expansion unit is connected by one communication means, and even if a plurality of communication means are connected by a network between the plurality of data expansion units, the reproduction unit and the plurality of data expansion units are connected. Since communication is possible, the reproducing unit can appropriately distribute the selected karaoke tune to the plurality of data decompressing units, and there is an effect that only one reproducing unit is required.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a karaoke reproducing apparatus according to the present invention.

FIG. 2 is a block diagram showing an embodiment of a karaoke reproducing apparatus according to the present invention.

FIG. 3 is a system configuration diagram of a main part of a karaoke reproducing apparatus according to the present invention.

FIG. 4 is a diagram showing a use state of a quick reference table.

FIG. 5 is a diagram showing recorded information in a karaoke disk.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Karaoke disk (Karaoke disk) 2c1-2cn Sectors 11b, 14a Communication module (communication means) 12, 13 Player section (playback section) 14d Video signal expansion section 14e Audio signal expansion section

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) G10K 15/04 302 G11B 20/10 H04N 5/91-5/956 H04N 7/24

Claims (1)

(57) [Claims] 1. Satisfies the standard of a CD-ROM disc
Information with appearance and playback characteristics and with data area
A karaoke disk having tracks, wherein the data
The area contains images related to the number of karaoke songs per song.
The digital video signal to be compressed according to the MPEG standard.
A large number of sectors for dividing and recording the compressed video signal,
Audio of the image, located immediately after the multiple sectors
Digital audio signals according to the MPEG standard
Sectors for recording compressed audio signals with data compression
Become one set, and each set is the number of the many karaoke songs
And the data area is
When the compressed video signal and the compressed audio signal are
The read rate of the double output is the CD-ROM disc
Is recorded so that it falls within the range of
Many karaoke discs prepared in advance
Out of a large number of karaoke songs
A karaoke playback device that selects and plays Laoke songs.
The selected karaoke songs are the multiple karaoke discs
Which of the karaoke discs
And a karaoke disc searched by the search unit.
Playing the music, the compression of the selected karaoke song
Time-division multiplexing the video signal and the compressed audio signal
A reproducing unit for outputting a compressed data signal, the compressed data signal to be output from the reproducing unit, by demodulating the digital video signal and digital audio signal and the complementary data decompression and data compression are music selection A data decompression unit for synchronously outputting the image and sound of the karaoke song, and the compressed data signal output from the reproduction unit
Playback of selected karaoke songs transmitted to the
A karaoke reproducing apparatus , comprising: communication means interposed between the reproducing section and the data decompressing section so as to perform data communication .