KR0120588B1 - Disc media, and reproducing method and apparatus thereof, for karaoke system - Google Patents

Abstract

A disk recording medium used in an image song accompaniment system and a replaying method are disclosed. The disk recording medium has a read-in region, a program region and a read-out region. The program region has a first region containing a number of accompaniment program index informations; a second region containing a number of moving picture video data index informations; a third region containing data of a accompaniment song; and a fourth region containing a number of moving picture video data, each of which has a different video index information.

Description

Video recording accompaniment disc recording medium and its playback method and device

1 is a diagram showing the data structure of a Q subcode channel of a CD.

2 is a diagram showing an example of a TOC of a Q subcode channel according to the present invention.

3 is a diagram for explaining a track configuration of a program area of a compact disc according to the present invention.

4 is a diagram showing an example of the tune program index table of FIG.

FIG. 5 is a diagram showing an example of the video image data index table of FIG.

6 is a diagram showing a colorant structure of MODE2 FORM2.

7 is a diagram showing a note on / off message structure of MIDI data.

8 is a diagram showing one embodiment of a data structure of a song program according to the present invention;

9 is a diagram showing another embodiment of a data structure of a tune program according to the present invention;

10 is a view showing an exclusive message for timing synchronization of accompaniment data, text data, and moving picture video data according to the present invention.

11 and 12 show sector structures of MODE1 and MODE2 FORM1.

13 is a block diagram of a video song accompaniment device according to the present invention;

14 and 15 are flowcharts for explaining the operation of the video song accompaniment apparatus according to the present invention.

The present invention relates to a disc recording medium dedicated to video song accompaniment, and a method and device for reproducing the same. In particular, a single disc is used for recording a video song accompaniment disc capable of recording thousands of song accompaniment, lyrics and moving pictures. A medium and a method and apparatus for reproducing the same.

A video song accompaniment device, also known as a karaoke (KARAOKE) device, is a device that allows a user to enjoy a song in accompaniment while viewing the displayed song lyrics along with song accompaniment. Recently, such a video song accompaniment apparatus has been spread to not only karaoke shops but also homes.

Conventional video song accompaniment apparatuses include LD karaoke apparatuses using laser disks (hereinafter referred to as LD), computer karaoke apparatuses using semiconductor memory, and CDG karaoke apparatuses using compact disk graphics (hereinafter referred to as CDG). .

The LD karaoke apparatus reproduces a moving image video signal, an audio signal, and a text signal recorded on the LD with an LD player, of which the text signal and the moving image video signal are displayed on the screen of the video display device, and the audio signal is transmitted through the audio device. By outputting, it is possible to enjoy high quality and high sound quality and to provide a background of a video suitable for the mood of the song and the lyrics of the song.

However, since LD (30cm in diameter) contains a lot of motion licture with audio, the disc size is larger than Cd (12cm in diameter), and there are limited to about 30 programs in one LD. . Therefore, in order to have more than 2000 programs that are sufficient for use in karaoke shops, approximately 70 LDs must be provided. If the LD value is 50,000 won, the purchase cost of 3.5 million won is high, so the cost of the store is high. In addition, since the disk needs to be replaced according to the curve, the karaoke shop has the economic burden and inconvenience of hiring a disc changer or installing an LD changer of several hundred to tens of millions of won. In addition, the LD changer has the disadvantage of occupying a considerable amount of installation space due to the large size of the device and a slow search speed.

A CDG karaoke apparatus is a device that simultaneously outputs images, lyrics and music by reproducing still images and text data recorded in subcode channels on a CD-G disc and displaying them through a video display apparatus. Such CDG karaoke apparatus has been expanded to home use recently because CDG is smaller in size than LD and purchase cost (10,000-15,000 won per sheet) is cheaper.

However, compared with LD, it does not implement assimilation and has a disadvantage of poor image quality. Since only 15 songs are stored per CDG, it is inconvenient to purchase a large amount of CDG discs in order to have a rich program like LD.

The computer karaoke device stores the song accompaniment data and lyrics data in the form of MIDI (Musical Instrument Digital Interface) data using a semiconductor memory device, and reads the corresponding MIDI data according to the song selection, and displays the character data on the screen of the video display device. The song accompaniment data is an audio output device through a sound processor.

The computer karaoke device can record more than 1,000 to 1,500 different programs because the signals recorded on the recording medium are MIDI data rather than sampled audio data like the disc karaoke device. According to the present invention, it has a merit that search fitting can be performed at a very high speed, but it is difficult to compose a screen suitable for the atmosphere of a song as in a disc karaoke apparatus.

In addition, the sound quality is poor, and the cost burden due to memory expansion is great when adding songs. In addition, it is incompatible with other media, and unlike a disk, the movement of software (program) is inconvenient.

As described above, conventional video song accompaniment apparatuses have advantages and disadvantages and are expensive, and thus are difficult to be widely used in homes.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and provides a video recording accompaniment disc recording medium capable of recording a background image of thousands of song accompaniment, lyrics and moving pictures in a single compact disc. The purpose.

Another object of the present invention is to provide a reproduction method and apparatus for the recording medium.

It is still another object of the present invention to provide a video light accommodating device of low cost and small size.

Still another object of the present invention is to provide a video song accompaniment apparatus compatible with other media.

In order to achieve the above object, the video recording accompaniment-only disc recording medium of the present invention is a compact disc recording medium having a lead-in area, a program area, and a lead-out area, wherein the program area includes independence information of a plurality of accompaniment music programs. A first area for a music program index table loaded with a track; A second area for moving picture data data index table containing index information of a plurality of moving picture video data forming a background image of the accompaniment song programs; A third area for song data consisting of MIDI data, lyrics data, and index information of the moving picture video data for each accompaniment song program, and including accompaniment song programs having different song index information; And a fourth area for moving picture data containing the plurality of moving picture data data having different moving picture index information.

A reproducing method of the present invention for achieving the above another object is a reproducing method of a disc recording medium for video song accompaniment having a lead-in area, a program area and a lead-out area, wherein the reproducing method is performed from the lead-in area of the disc recording medium at the beginning of reproduction. Reading a content table to obtain initial address information of the program area; Reading the accompaniment song program index table and the moving picture video data index table from the first area and the second area of the program area according to the obtained initial address information and storing them in the first and second memories; Acquiring the address information of the selected accompaniment song program by referring to the song program index table of the first memory according to the selection of the accompaniment song program, and obtaining the accompaniment song from the third area of the disc recording medium according to the obtained address information. Reading program data and storing the program data in a third memory; While the MIDI data read out from the third memory is reproduced and output as an audio signal, the moving image video data is read from the fourth area of the disc recording medium with reference to the moving image video data index information stored in the third memory. And mixing the reproduced moving picture video data with the lyrics data read out from the third memory, outputting them as a video signal, and displaying the same.

In addition, the playback apparatus includes a video song accompaniment apparatus displaying a song lyrics and a background image together with song accompaniment, comprising: input means for generating a key signal for selecting a song; CD reproducing means for reproducing a CD signal from a video recording accompaniment disc recording medium according to a key input of the input means; Decoding means for inputting the CD signal to generate a decoded signal; Memory means for storing an accompaniment song program index table, a moving picture video data index table for background pictures, and accompaniment song program data of the decoded signals; Image processing means for inputting a song lyrics subtitle and moving picture video data for a background image and outputting a video signal; Audio processing means for inputting song accompaniment media data and outputting synthesized analog audio signals; And inputting the decoding signal to the memory means, supplying the address signal of the corresponding song program to the CD reproducing means according to the song selection by referring to the song program index table, and moving picture video data index information of the song program data. Supplying each moving video data address signal to the CD reproducing means with reference to the moving picture data data index table, and supplying the moving picture video data reproduced and decoded from a disc recording medium to the image processing means in response to the address signal. And a control processor for forming the song program data in a mid-data format and providing it to the audio processing means.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

The video song accompaniment disc recording medium of the present invention (hereinafter referred to as CDK) is largely similar to a conventional compact disc digital audio (CL-DA) disc, with a lead-in area (LIA), a program area (PMA), and a lead-out area (LOA). Has 1 shows the data structure of a Q channel in LIA. The 98-bit Q channel data consisting of the second bits of the sub-code region among the 98-frame data bit strings is composed of 2 bits of sync bits and 96 bits of data bits. The 96 bits are 4 bits of control bits, 4 bits of address bits followed by 72 bits of data bits as shown. 72-bit data bits include 8-bit track number code (TNR), 8-bit pointers, 24-bit minutes, seconds, frames, 8-bit interval bits (Zero), and 24-bit pointer addresses (PMIN, PSEC, PFRAME). It is composed of

This Q channel has a table of contents recorded on the disk, that is, information of the contents table TOC. Therefore, in the existing CD-DA disc format, since 01 to 99 track number codes are set, only up to 99 programs can be displayed, and no more programs can be designated within the TOC.

Referring to FIG. 2, in the present invention, an index table area is set in the PMA to search for thousands of accompaniment song programs and dozens of moving picture video data. PMIN when the pointer of the TOC is 1 indicates the initial address of the program area.

PMIN at A0 indicates the first track number of the program area, PM1 at the A1 indicates the last track number of the program area, and PMIN at A2 indicates the initial address of the LOA. PSEC and PFRAME at A0 and A1 may represent a coding scheme of moving picture video data. In the above-described TOC of the present invention, the contents order according to the pointer values except for A0 to A2 may be changed according to the data structure of the PMA. It is preferable in terms of the servo operation of the apparatus.

Referring to FIG. 3, the PMA of a CDK disc according to the present invention is largely divided into five areas. The first area contains a song program index table, that is, an index table of FIG. 4 composed of song accompaniment song numbers and address information. The second area contains a video table data index table, i.e., an index table of FIG. 5 composed of index information and address information of video video data constituting a background screen. In the third area, song programs having song accompaniment media data are stored in song units. In the fourth area, moving picture video data for a background screen is classified by song unit.

The CD disc can store approximately 640M bytes of information when the maximum play time is 75 minutes. In the embodiment of the present invention, about 2,000 pieces of accompaniment song programs and moving picture video data corresponding to 20 pieces of 3 minutes are recorded on one CD disc.

The accompaniment song program occupies 2000 x 50K bytes = 100 Mbytes when about 50K bytes per song.

In the case of a video compact disc (hereinafter referred to as a VIDEO CD), up to 75 minutes of moving picture can be recorded on a single CD. According to the recording method of the VIDEO CD, when recording 20 moving pictures of 3 minutes in the moving picture video data area of the disc recording medium according to the present invention, it occupies 3 x 20 x 640/75 = 512M bytes.

The song program index table occupies 2000 x 4 bytes = 8K bytes, and the moving picture video data index table occupies 20 x 4 bytes = 80 bytes. These index tables can be accommodated in three sectors and one sector, respectively, as the MODE1 sector 2048BYTE.

The total amount of information in the first to fourth areas is 100M + 512M + 1K + 8K = 612,009M bytes. It allocates an extra 38M bytes to the fifth zone, and this fifth zone is a digitally-sampled warning message of a conventional CD system. For example, this disc is a Samsung CD-K disc, so if you want to play it, you must have a Samsung CDK player. Contains warning messages or CDG text warning messages.

In the embodiment of the present invention, moving picture video data is recorded using the MODE2 FORM2 sector structure of the CD-1 disc format shown in FIG. The accompaniment song program consists of MIDI data. The format of the MIDI signal is shown in Table 1 below.

The MIDI signal is composed of one byte of status bytes, one byte of status bytes, and at least one byte of data bytes. MIDI signal is divided into channel message and system message according to status byte. Channel message is divided into voice message and mode message. System message is divided into exclusive message, common message and real-time message. As shown in FIG. 7, the note on / off message indicates which pitch of 128 pitches is generated, and which pitch of 128 pitches is generated and stopped.

Accompaniment data and lyrics data of the present invention can use a conventional computer karaoke MIDI format. Therefore, the arrangement of the accompaniment tune program can be configured as shown in FIG.

First, referring to FIG. 8, a header of a tune program has information regarding a header ID code, a header size, a body size, a pointer 1, a pointer 2, a pointer 3, and a total size. The body is largely composed of accompaniment song data, font data, and index information of moving picture video data.

These data are configured in the MIDI format, pointer 1 of the header designates the font data initial address, and pointer 2 designates the initial address of the moving picture video data index information. Pointer 3 designates the initial address of the Taylor.

Accompaniment of accompaniment song data, character data and moving picture sequence data is performed by MIDI time code. MIDI time codes include header frame messages, full time code messages, user bit messages, and setup messages. In addition, control data can be inserted into the accompaniment song data to synchronize fonts and screen synchronization. For example, as shown in FIG. 10, an exclusive message can be used to carry a manufacturer ID code and a flag code.

The flag code (OX) is a data byte. LSB of the lower 4 bits is used for accompaniment data valid flag, and the second bit is font data output flag. The third bit is used as video data output flag.

Next, referring to Fig. 9, the header of the tune program has information regarding the header size, body size, taylor point and total size. The body has flag information of FIG. 10 for each accompaniment data, followed by corresponding font data and index information of moving image video data. Therefore, there is no need to set a pointer to the header as compared to the method of FIG.

The media data of the accompaniment song program has a mode structure of FIG. 11 or MODE2 FORM1 of FIG. 11 having a higher error correction capability than that of a MODE2 FORM2 sector of video image data. For example, when the accompaniment tune program is 50K bytes, about 25 sectors are continuous.

As described above, the video recording-accompaniment disc recording medium according to the present invention does not directly access song programs by referring to the TOC of an existing CD disc, but first accesses a song program index table and then references each song program by referring to the index table. You can access thousands of song programs. In addition, by recording the audio signal recorded on the PMA by using MIDI data without using a sampling method having a large amount of information, more song programs can be recorded on a single disc.

Referring to FIG. 13, the video song accompaniment apparatus according to the present invention includes a CD reproducing means 100, a decoding means 200, a control processor 300, a memory means 400, an image processing means 500, and an audio processing means. 600 and the input and display means 700.

The CD reproducing means 100 picks up the optically modulated data signal from the disc 110 via the pickup means 130, decodes it in the DSP means 150 and outputs the decoded CD data signal. The servo means 140 performs a tracking servo of the spindle motor 120 and the pickup means 130. The microcomputer 160 operates as a subprocessor of the control processor 300 by controlling each part of the CD reproducing means 100 according to a key input signal and generating a display signal.

The decoding means 200 receives a CD playback signal, descrambles it, outputs a CDK signal by detecting and correcting a predetermined error of the obtained signal. The control processor 300 inputs the CDK signal, stores it in the memory means 400, and operates as the main processor of the microcomputer 160 of the CD reproducing means 100. It also has a MIDI signal processing function for processing MIDI data among CDK signals. The control processor 300 supplies the accompaniment data of the processed MIDI data to the audio processing means 600 in a MIDI signal format of 0 bits per byte at a rate of 3.125K bytes per second, and the moving picture video data and the character data are processed for video. To the means 500.

The memory means 400 includes a first memory 410 for storing a song program index table, a second memory 420 for storing a video image data index table, and a third memory for storing song program data ( 430).

The image processing means 500 includes a moving image processor 510, a character processor 520, and a mixer 530. The moving image video processor 510 inputs moving image video data compressed according to the MPEG standard, reproduces the moving image video signal, and outputs it to image processing means such as a TV receiver.

The character processor 520 outputs a character image signal according to the input font data. The mixer 530 mixes a text image signal with a video image signal output from the video image processor 500 and outputs the text image signal to a TV receiver not shown.

The audio processing unit 600 includes a sound source processor 610, a selector 620, and a digital analog converter 630. For example, the sound source processor 610 such as a digital sound generator such as YM-2163, YM-3812, or YMF-262 under Yakung reproduces and outputs the accompaniment signal in accordance with the supplied MIDI signal.

The selector 620 selectively outputs the CD playback signal during CD disc playback through the DAC 630 and the accompaniment signal of the above-described sound source processor 610 in response to the disc discrimination operation of the CD playback means 100. Or output to an audio device. The input and display means 700 includes an input means 710 for generating a key signal in response to a remote controller or a key input, and a display means 720 for displaying an operation state of the system.

Operation of the video song accommodating device of the present invention configured as described above will be described with reference to FIGS. 14 and 15. When the disc is loaded into the video song accommodating device of the present invention, the CD player 100 reads the TOC from L1A of the disc 110 (step 10). The microcomputer 160 determines the disc type according to the format of the TOC to determine whether the loaded disc 110 is a CDK disc or another CD disc (step 12). If it is not a CDK disc, CD-DA disc processing is performed (step 14). If a CD-G decoder, a CD-I decoder, or the like is added, the corresponding CDG disc and CD-I disc can be processed. In the case of a CD-DA disc, an audio output selection signal (dotted line in FIG. 13) is generated to output the audio signal of the CD-DA. If it is a CDK disc in step 14, the microcomputer 160 searches the PMA song program index table area and the moving picture video data index table area with reference to the TOC and outputs them through the pickup means 130 and the DSP 150 (16 and 18). step). Check the presence or absence of a key signal through the input means 710 (step 20), and if there is a key input, decipher the input key signal (step 22), perform the corresponding key processing (step 24), If the curve is corrected, the corresponding song program selection signal is generated (step 26). When the corresponding song program address is input from the control processor 300 in response to the curved tag signal generation (step 28), the microcomputer 160 controls the servo unit 140 to move the pickup unit 130 to the program area so that the corresponding song program address is input. Search for the program. Subsequently, the corresponding song program is read (step 30) and output. When a moving video data address signal is input from the control processor 300 (step 32), the microcomputer 160 searches the moving video data area of the disc, reads out the moving video data, and outputs it (step 34). Repeat steps 32 and 34 until the corresponding song is completed (step 36), and returns to step 20 when it is completed.

Referring to FIG. 15, the CD signal supplied from the CD reproducing means 100 in the case of a CDK disc is descrambled through the decoding means 200 and subjected to error correction to be input to the control processor 300. In operation 300, the CDK signal is input and stored in the first memory 410 of the music program index table memory means 400 (step 50), and the video image data index table is stored in the second memory 420 (52). step). When the program selection signal is supplied from the microcomputer 160 (step 54), the control processor 300 generates an address signal of the corresponding song program by referring to the music program index table stored in the first area (step 56). When the song program data is input through the decoding means 200 in response to the address signal, it is stored in the third memory 430 of the memory means 400 (step 58). The control processor 300 reads the song program data in the third memory 430, decodes the data according to the MIDI data format, and controls the CD reproducing means 100, the video and audio processing means 500, 600 according to the decoding result. In the case of font data output (step 62), the decoded font data is supplied to the character processor 520 (step 60). The character processor 500 generates a character image signal according to the input font data (step 64). When the video data is output (step 66), the moving picture video data index information in the third memory is read out and the decoding means 200 from the CD reproducing means 100 in response to the moving picture data data address signal in the second memory 420. The coat roll processor 300 receives the moving image data signal supplied through the moving image data signal and supplies the moving image video data signal to the moving image video processor 510. The moving image processor 510 converts the input moving image data into an analog TV signal and outputs it (step 70). The TV signal and the text image signal generated in step 64 are mixed in the mixer 530 to output the video signal to the TV receiver (step 72). If the font data and the moving image video data are not output in steps 62 and 66, the MIDI data is converted into a 10-bit MIDI signal and supplied to the sound processor 610 (step 74), and the sound processor 610 inputs and synthesizes the MIDI signal. The analog audio signal is output to the audio device (step 76). Repeat steps 60 to 76 until the performance is complete (78 steps). When the performance is completed, the process returns to step 54.

As described above, in the present invention, more than 2000 song accompaniments can be performed on a single CDK disc, and each video can be added with a moving picture according to the meaning of the song lyrics. The image quality is excellent, the light weight is small, the value is very low, and the existing It is very economical because it can maintain compatibility with CD discs. In addition, since there is no need to exchange discs like the existing LDP or CDG, it is possible to perform the same high-speed search operation as the computer karaoke device, but it can provide a great background for the lyrics that cannot be provided by the existing computer karaoke device. CDG karaoke It is possible to provide a background image of a moving picture rather than the graphic level of the device.

In the above-described embodiment of the present invention, an example of a compact disc has been described, but a recordable / playable disc such as a CD-WORM and a MOD disc can be used. In this case, the user can not only add a new song, etc., but also can select a background picture according to his / her preference by referring to the moving picture video data index table, so that a higher quality video song accompaniment can be enjoyed.

As described above, it should be noted that the present invention is not limited to the above-described embodiments, but includes a range that can be modified and modified by those skilled in the art within the technical spirit and scope made in the claims.

Claims (13)

A video flexible accommodating disc recording medium having a lead-in area, a program area, and a lead-out area, the program area comprising: a first area for a song program index table on which index information of a plurality of accompaniment song programs is loaded; A second area for moving picture data data index table containing index information of a plurality of moving picture video data forming respective background images of each of the accompaniment song programs; A third area for song data, comprising a plurality of accompaniment song programs each consisting of MIDI data, lyrics data, and index information of the video image data for each accompaniment song, and having different song index information; And a fourth area for moving picture video data containing the plurality of moving picture data data having different moving picture index information. 2. The disc recording medium according to claim 1, wherein each moving picture video data is composed of music units. 2. The disc recording medium according to claim 1, wherein the moving picture video data is recorded by the CD-I MODE2 FORM2 method. The video recording accompaniment-only disc recording medium according to claim 1, wherein each of the accompaniment song programs is recorded in any one of Mode 1 or Mode 2 Form 1 of CD-I. The video recording accompaniment-only disc recording medium according to claim 1, wherein each moving picture video data is compressed and encoded by an MPEG method. The video recording accompaniment-only disc recording medium according to claim 1, wherein the lyrics data of each accompaniment song program has a measure data format. 2. The recording medium of claim 1, wherein the accompaniment media data includes timing codes for synchronizing lyrics and moving image video output. The recording medium of claim 1, wherein the program area further comprises a fifth track containing warning message data recorded in a CD-DA method following the fourth track. 10. The disc recording medium according to claim 8, further comprising graphic data for warning messages that can be reproduced in a CD-G manner in the graphic sub code channel of the fifth track. A method of reproducing a video recording accompaniment disc recording medium having a lead-in area, a program area, and a lead-out area, wherein the initial table information is read from the lead-in area of the disc recording medium at the beginning of reproduction. Obtaining; Reading a song program index table and a moving image data index table from first and second areas of the program area according to initial address information of the program area and storing the first and second music program index tables in the first and second memories; Acquiring the address information of the selected accompaniment song program by referring to the song program index table of the first memory according to the selection of the accompaniment song program, and obtaining the accompaniment song from the third area of the disc recording medium according to the obtained address information. Reading program data and storing the program data in a third memory; While reproducing and outputting audio data read out from the third memory, the video data is read out from the fourth area of the disc recording medium with reference to the moving picture data index information stored in the third memory. And mixing and outputting the moving image data and the lyrics data read out from the third memory as a video signal and displaying the same. A video song accompaniment apparatus for displaying a song lyrics and a background image together with song accompaniment, comprising: input means for generating a key signal for selecting a song; CD reproducing means for reproducing a CD signal from a video recording accompaniment disc recording medium in response to a key input of the input means; Decoding means for inputting the CD signal to generate a decoded signal; Memory means for storing a song program index table, a moving picture video data index table for background pictures, and accompaniment song program data among the decoded signals; Image processing means for inputting a song lyrics subtitle and moving picture video data for a background screen and outputting a video signal; Audio processing means for inputting song accompaniment media data and outputting synthesized analog audio signals; Inputting the decoding signal to the memory means and supplying an address to the CD reproducing means according to a song selection by referring to the song program index table, and moving picture video data of the song program data. The moving picture video data address signal is supplied to the CD reproducing means with reference to the moving picture data data index table according to the index information, and the moving picture video data reproduced and decoded from the disc recording medium in response to the address signal is used for the image processing means. And a control processor for supplying the song program data to a media data format and providing the song program data to the audio processing means. 12. The video singing accompaniment apparatus according to claim 11, wherein said audio processing means includes selecting means for selectively outputting a CD-DA signal and a MIDI signal in accordance with disc discrimination by the CD playing means. 12. The video song accompaniment apparatus according to claim 11, further comprising a CDG decoder for inputting the CD signal and processing a CDG signal.