KR0136051B1 - Video karaoke system and operating method thereof - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image accompaniment apparatus and a method of operating the same, which use an optical disc as a storage medium for flexible accompaniment data and lyrics subtitles and background images, and which includes a video processing means therein. According to the present invention, the video processing means is provided in the video accompaniment apparatus, and the video processing is performed by overlaying the subtitles on a still graphic or an external input video signal. For the purpose of generating a background image of the lyrics subtitle, a general disc, in particular a video CD (CD) or a digital video disc, by using an optical disc playback means and a video processing means provided to implement a video in the video accompaniment itself. A video accompaniment that allows you to play (DVD) By providing a device and a method of operation thereof, it is possible to overcome the monotony of the existing video accompaniment device, and by adding all the necessary data for accompaniment such as accompaniment data and lyrics data to the optical disc, new songs can be easily added by simply replacing the optical disc. It is possible to operate as a player of a video CD (CD) or a digital audio disc (DVD) by using the above optical disc reproducing means and moving picture processing means.

Description

Video accompaniment device and its operation method

1 is a block diagram of an image flexible accompaniment device according to the present invention;

2 is an embodiment of an image flexible accompaniment device according to the present invention,

3 is an operation flowchart of an image flexible accompaniment device according to the present invention;

4A to 4C illustrate an example of a data structure of an image accompaniment dedicated CD-ROM reproduced by an image accompaniment apparatus according to the present invention.

a is the data structure of the CD,

b is a data structure diagram of the program area in a,

c is a data structure diagram of the song data area for one song of the image accompaniment device in b,

5A to 5C illustrate another example of a data structure of a CD accompaniment-only CD ROM played by the image accompaniment apparatus according to the present invention.

a is a data structure diagram of the program area,

b is a data structure diagram of the table area in a,

c is a data structure diagram of a song data area for a song of the image accompaniment apparatus in a,

6 a to c are data tables of FIG.

a is a tune table,

b is the video table,

c is a video matching table.

* Description of the symbols for the main parts of the drawings *

100: microprocessor 110, 120: system RAM, ROM

130: key processing means 140: audio processing means

150: optical disc playback means 150 ': CD-ROM drive unit

160: video processing means 170: video processing means

The present invention relates to an image accompaniment apparatus using an optical disk as a storage medium for data of accompaniment data and lyrics subtitles and a background, and a video processing means therein, and a method of operating the same. The present invention relates to an image accompaniment apparatus capable of providing a video generated by itself and an operation method thereof.

In general, the video accompaniment apparatus stores accompaniment data, lyrics subtitles, and background graphic data in a memory means, and when the accompaniment is selected, the accompaniment sound according to the selection and the lyrics are displayed on the background screen. It is possible to enjoy singing through the music, and the means for storing the lyrics and background image graphics and accompaniment data is usually implemented using EPROM or MASKROM.

By the way, in the conventional video accompaniment apparatus, a graphic of a still image generated by itself as a background image of a lyrics subtitle is used, or a video generated by an external video reproducing apparatus input through an external video input is used.

At this time, the background graphics generated by the self are monotonous because they do not vary in the type of graphics stored as the limit of the storage capacity and implement only the still image.

However, in order to provide a video as a background image, a large amount of memory must be secured, which causes an excessively high cost increase, and thus a still image using a small amount of memory is stored as a background image graphic data. In other words, it has been recognized as a limitation of the image accompaniment device that only a still image, not a video, can be generated as a background image of a lyrics subtitle.

Therefore, in order to avoid such monotony, a conventional video accompaniment apparatus often receives a video output from a VCR or an LDP as an external video and uses it as a background screen for lyrics subtitles. That is, a video accompaniment device connected to an LDP or a VCR can show a video as a background screen of lyrics subtitles, which is a great strength of the video accompaniment device.

However, there is a problem in that a separate VTR or LDP is required to receive a video through an external video input, and an external video image having a desired background cannot be selected according to selecting an accompaniment. There is a problem of simply using a live performance of a famous singer or a natural scene as a background image.

In addition, due to the limited capacity of the memory to store the accompaniment data, even if you want to continue to add the selection, only the number of songs (usually 100 or more) that can be stored in one ROM (4M bit) can be added to the needs of consumers There is a disadvantage that the burden is increased, and also, as the new song is not easily installed by the consumer, it is difficult to secure a large capacity storage medium and easily add a new song.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to provide a moving image subtitle as a background image by providing a video processing means inside a video accompaniment apparatus.

Another object of the present invention is to play a general optical disc, for example, a video CD (CD) or a digital video disc (DVD) by using an optical disc reproducing means and a moving image processing means provided to implement a moving image in the image accompaniment apparatus itself. It is to provide an image accompaniment apparatus and an operation method thereof.

That is, the present invention for achieving the above object is a microprocessor for controlling the entire image accompaniment apparatus, and the microprocessor to store the programs necessary to control the operation of the image accompaniment apparatus and to the operation of the image accompaniment apparatus. System RAM and ROM providing various necessary storage areas; key processing means for processing a key signal of a song selected by a user and entering the microprocessor; accompaniment data arranged in the form of MIDI data; and lyrics subtitle data. And an image accompaniment optical disc and a general optical disc (data stored in a compressed form) that store data such as still graphics for a background image, moving image data for a background image, and programs necessary for overall control of the image accompaniment device. The microprocessor (including stored in uncompressed form) An optical disc reproducing means for reproducing under control, and an optical disc reproducing means for reproducing the image flexible accompaniment-only optical disc under the control of the microprocessor and outputting the video compressed data for the accompaniment wallpaper for the background image in real time. Reproduces and outputs a moving image video signal, or under the control of the microprocessor, the optical disc reproducing means receives and decompresses the moving image compressed data and the audio compressed data outputted by reproducing a general optical disc in which data is compressed. Video processing means for reproducing and outputting a moving video signal and an audio signal, and receiving the accompaniment data outputted by the optical disc reproducing means for reproducing the video flexible accompaniment-only optical disc under the control of the microprocessor. Generates an analog accompaniment signal and synthesizes it with an externally input voice signal, or receives the audio signal output by decompressing the video processing means under the control of the microprocessor and converts it into an analog audio signal. Audio processing means for outputting, and under the control of the microprocessor, the optical disc reproducing means receives data such as the lyrics subtitles and still graphics, which are output by reproducing the video flexible accompaniment-only optical disc, and outputs a background such as lyrics subtitles and still graphics. A background is generated, and either the generated still picture for the background image or the video image signal for the background image reproduced and received by the video processing means or one of the external video signals for the background image generated and imported by the external image reproducing means. Select it by the screen It consists of a lyric captions which occurs in the selected background screen to the video processing means for outputting the overlay.

As described above, the present invention includes an optical disc reproducing means and a moving image processing means for overlaying lyrics subtitles on a background screen and outputting accompaniment data, wherein a CD (CD) medium loaded in the optical disc reproducing means is an image accompaniment dedicated CD- The first step of determining whether it is a CD-ROM or a general CD (CD) medium, and the image when the accompaniment-only CD-ROM (CD-ROM) is loaded on the optical disc reproducing means. The second step of reproducing the accompaniment CD-ROM to perform the image accompaniment, and the result of the first step, when the normal CD (CD) medium is loaded in the optical disc playback means, this is the video CD (CD). A third step of determining whether the CD-DA or CDG is performed and reproducing each CD medium is performed sequentially.

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

1 is a block diagram showing an image flexible accompaniment device according to the present invention.

It stores the microprocessor 100 that controls the entire video accompaniment device, programs necessary for the microprocessor 100 to control the operation of the video accompaniment device, and provides various storage areas necessary for the operation of the video accompaniment device. System RAM and ROM 110 and 120, key processing means 130 for processing the key signal of the song selected by the user and entering the microprocessor 100, and accompaniment data arranged in the form of MIDI data. A video accompaniment-only optical disc and a general optical disc that store data such as lyrics subtitle data, still images for a background image, moving image data for a background image, and a program necessary for overall control of the image accompaniment apparatus. Stored in the form of an uncompressed form) and under the control of the microprocessor 100 The optical disc reproducing means 150 and the video compression data for the accompaniment background image inputted by the optical disc reproducing means 150 by playing the optical disc accompaniment-only optical disc under the control of the microprocessor 100. Receives and outputs a moving picture video signal for a background image in real time, or outputs by reproducing and outputting a general optical disc stored by the optical disc reproducing means 150 in a compressed form under the control of the microprocessor 100. And video processing means 170 for receiving audio compressed data, decompressing, and reproducing and outputting a moving video video signal and an audio signal in real time, and the optical disc reproducing means 150 under the control of the microprocessor 100. The accompaniment data output by playing the video flexible accompaniment-only optical disc Generates an analog accompaniment signal to be input and synthesizes it with an externally input voice signal or outputs the audio signal output by decompressing the video processing unit 170 under the control of the microprocessor 100. Audio processing means 140 for receiving and converting an analog audio signal and outputting the lyrics subtitles outputted by the optical disc reproducing means 150 playing the video flexible accompaniment-only optical disc under the control of the microprocessor 100. And receiving data such as still captions and still graphics by receiving data such as lyrics and still graphics, and generating a background image such as lyrics subtitles and still graphics, and playing back the generated still images for the background image or the video processing means 170. The video signal for the background image or the external image reproducing means Select one of the external video signal is generated for the incoming background screen as a background screen, is composed of the selected background to overlay the subtitle in which the lyrics occur in the display to output video processing means (160).

The present invention configured as described above uses an optical disc as an storage medium such as accompaniment data arranged in the form of MIDI data, lyrics subtitle data, still image data for a background image, and moving image data for a background image. Such an optical accompaniment-only optical disc may be a CD (Compact Disc), a double-density CD (CD), or a digital video disc (DVD).

In the optical disc reproducing means 150 for reproducing the above-described optical accompaniment-only optical disc, a CD-ROM drive or a digital video disc drive may be used according to the optical disc medium to be reproduced.

In addition, the present invention includes a moving picture expert group (MPEG) decoder as the moving picture processing unit 170.

The general technical details of MPEG are as follows.

MPEG is a standard for the compression and decompression of video and audio signals and the synchronization of restored audio and video data. MPEG standards are currently enacted in MPEG1 and MPEG2.

MPEG1 decodes about 1.2Mbit of compressed video information per second and produces 30 '352 × 240' images per second.

To convert a normal NTSC screen into digital information, data equivalent to 140 times 1.2 Mbit / s is required. The MPEG1 decoder thus restores 140: 1 compressed video data in real time.

Generally, a CD-ROM is used as a storage device for MPEG1 data. After the moving picture data and audio data are recorded in the data recording area of the CD-ROM by the compression method, the MPEG-1 decoder can be used to obtain a 72 minute moving picture and audio signal. CD) device.

MPEG2 is a standard that can compress and reproduce video signals of higher quality than MPEG1 by using data several times larger than MPEG1.

It is used as a storage medium for MPEG2 data is an optical disk such as a digital video disk (DVD), a digital video disk (DVD) has a much larger storage capacity than a CD (CD) media.

In general, a video CD (CD) player using MPEG1 has a VHS VTR level, and a digital video disc (DVD) player using MPEG2 plays a quality higher than that of a laser disk player.

The MPEG decoder, that is, the video processing means 170, reproduces the video and audio signals in real time by decompressing the compressed video information and the audio information according to the MPEG standard.

FIG. 2 is a detailed diagram of an image flexible accompaniment device according to the present invention of FIG. 1.

That is, the microprocessor 100 for controlling the entire image accompaniment, and the system RAM and ROM 110 for storing the programs and data for controlling the image accompaniment device and providing a storage area necessary for the operation of the image accompaniment device. 120, a key processing unit 130 for processing the key signal of the song selected by the user and entering it into the microprocessor 100, accompaniment data arranged in the form of MIDI data, data about lyrics subtitles, and still image stops. CD-ROM for playing back accompaniment CD-ROMs and CD-ROM media, which stores data such as graphics, moving picture data for background images, and programs necessary for controlling the video accompaniment device. Drives the accompaniment data reproduced from the CD-ROM drive unit 150 'under the control of the drive unit 150' and the microprocessor 100 to generate an analog accompaniment signal. Audio processing means 140 for synthesizing with the voice signal of the user input and output, and the CD-ROM drive unit 150 ′ is controlled by the microprocessor 100. CD-ROM) outputs video compressed video data for accompaniment background image and outputs the video signal for background image in real time, or outputs the CD-ROM drive unit 150 '. Video processing means 170 for reproducing and decompressing video data and audio compression data outputted by playing and outputting a general CD (CD) medium in real time, and outputting the video video signal and audio signal in real time; 100 receives and processes data related to the lyrics subtitles and data such as a still image for a background screen, and the background image is processed by the video processing means 170. The video processing means 160 receives the video video signal for the surface, and outputs the lyrics by overlaying the lyrics on the background image of the still graphic or the video.

Here, the audio processing unit 140 includes a sound source processor 142 for generating a digital audio accompaniment signal based on the accompaniment data reproduced from the CD-ROM drive unit 150 ', and the accompaniment of the sound source processor 142. Audio to select a signal or an audio signal of the video processing unit 170 or a CD-DA audio signal reproduced by the CD-ROM drive unit 150 'under the control of the microprocessor 100. MUX 144, a digital / analog converter 146 for converting the digital audio signal selected and output by the audio mux 144 into an analog audio signal, and an output signal of the digital / analog converter 146. And an audio mixer 148 for mixing the user's voice signal input from the external microphone 147 and outputting audio to a speaker or the like.

In addition, the CD-ROM drive unit 150 'is a CD-ROM (CD-ROM) or video recording accompaniment data, lyrics caption data, background image still image graphics data and moving image data according to the present invention as compressed data. CD mechanism 155 for loading and driving a CD or CD-DA for audio to generate a digital signal, and a CD medium under the control of the microprocessor 100. Digital processing of the digital signal output through the CD mechanism 155 under the control of the system controller 154 and the system controller 154 to reproduce the CD signal. Under the control of the digital signal processor 152 and the system controller 154, the CD signal output from the digital signal processor 152 is decoded to output CD-ROM data and output the data. It consists of a block decoder 151 in charge of the face.

The video processing means 160 further includes a lyrics caption processor 161 for generating a caption display signal based on the lyrics caption data, and a video signal of the still image of the background graphics processor 162 based on the background image graphic data. A video mux 163 for selecting any one of the moving image video signals of the processing means 170, and a composite video signal converter 164 for converting the digital video output signal of the video mux 163 into an analog signal for output to a monitor. And an analog mux 168 for selecting any one of an output signal of the composite video signal converter 164 and an external video signal input through an external video input terminal 168, and an output signal of the analog mux 158. And a video mix 166 that overlays the output signal of the lyrics subtitle processor 161 and outputs the video signal to a monitor or the like.

Thus, since the present invention includes a CD-ROM drive unit 150 'which is a core component of a video CD player and a video processing unit 170 which is an MPEG decoder, the video CD player is provided. It can also be operated. That is, the present invention operates not only as an image accompaniment apparatus but also as an accessory of a video CD player, or an accompaniment signal output from the sound source processor 142 or an audio signal of the video processing means 170. The audio mux 144, which can be selected by the control of the microprocessor 100, and the video video signal output from the video processing means 170 or the background video graphic signal output from the background graphics processor 161 are micro. The video mux 163 selected by the control of the processor 100 was provided.

Also, since the CD-DA signal is output from the digital signal processor 152 of the CD-ROM drive unit 150 ', the CD-DA signal is output from the audio mux 144. By configuring the CD-DA signal to be selectively output under the control of the microprocessor 100, the present invention can operate as a CD player that plays a general audio CD. Do.

In addition, the CDG is used to record graphic data in an area called a subcode field of the CD format, so that 16-color graphics can be reproduced. A CDG decoder was provided to enable playback of the CDG.

That is, the present invention can be used as a CD-DA or CDG player as well as a video accompaniment device, and can also be used as a video CD player.

Further, in the embodiment shown in FIG. 2, if a digital video disc drive (DVD Drive) is used in place of the CD-ROM drive unit 150 'and a digital video disc (DVD) is used as the optical accompaniment-only optical disc, The present invention can be used not only as an image accompaniment device but also as a general digital video disc (DVD) player.

4A to 4C show an example of a structure of data recorded on an image accompaniment CD-ROM (CD-ROM) to be reproduced in the embodiment of the image accompaniment apparatus according to the present invention shown in FIG. As shown in a of FIG. 4, the display panel is divided into three areas, a lead-in area, a program area, and a lead-out area. In the lead-in area, various kinds of information such as the number of songs recorded on the disc and the address of the index portion are recorded. This is called TOC (Table Of Content). Data is recorded in the program area, and a signal indicating the end of the data is recorded in the lead-out area.

Programs and various data necessary for the operation of the image flexible accompaniment apparatus according to the present invention are stored in the program region of the signal recording area of the CD (CD), and b of FIG. 4 is a CD-ROM of the image flexible accompaniment apparatus according to the present invention. One embodiment of the data structure of the program area of a CD-ROM reproduced in a (CD-ROM) drive is shown.

That is, it is divided into a program code area, a song data area, a still picture data area, and a moving picture data area. The program code area contains an entire control program for operating a video flexible accompaniment device. That is, in the image accompaniment mode, the bootstrap loader stored in the system ROM 120 by the microprocessor 100 reads the control program code and stores the control program code in the system RAM 110 to store the entire control program. It will control the video accompaniment device. If the entire control program is stored in this manner, the entire control program can be replaced only by exchanging the CD-ROM without replacing the system ROM 120 when the control program is improved or modified.

In the song data area, various types of data of all the songs to be accompaniment are stored. The structure of the data stored in one song unit is shown in FIG.

The still image data area is an area for storing data such as graphics and photographs used as a background image of a lyrics subtitle, and an index (hereinafter referred to as a still image index) is provided in units displayed on one screen. The still image index can be used to call up the desired graphic as a background image.

The video data area is an area in which data about a video used as a background of lyrics subtitles is stored, and an index (hereinafter referred to as a video index) is assigned to a data unit of a video that is played for a predetermined time. You can import the video you want as wallpaper.

As shown in FIG. 4C, the song data area includes a storage area for storing song numbers for selection by a selection key, an area for storing information such as a title, composer, and singer, and selection songs. It is divided into a MIDI accompaniment data area for storing data for accompaniment generation, a font code area for lyrics subtitles, a still picture table area for a background picture, and a video table area for a background picture. Accompaniment data of the image flexible accompaniment apparatus according to the present invention is stored in the MIDI format. In the accompaniment device, instead of recording the actual accompaniment, the length of the keyboard required to play the instrument is stored in the command format. Compared to PCM recordings per song, a very small memory capacity is consumed, allowing a large number of accompaniment data to be stored and used.

The font code area of the lyrics subtitle stores a font code of a character used to express the lyrics subtitle at the time of accompaniment.

The still image table for the background image is a table storing the still image indexes for graphics or photographs to be used as the background image of the lyrics when the accompaniment is performed. You can see the combination of graphics to be used as wallpaper.

The video table for the background is a table storing the video indexes for the video to be used as the background of the lyrics when the accompaniment is performed. The microprocessor 100 is used as the background image of the song to be accompanied by the indexes of the table. You can see the combination of videos.

Referring to the embodiment of the data structure described above, the operation sequence of the present invention shown in FIG. 3 will be described based on the operation relationship of each component of the image accompaniment apparatus shown in FIG. .

First, when the power is turned on, the microprocessor 100 performs an initialization step 300 of setting an internal flag or a register to an initial value.

After performing the initialization step 300 as described above, the step 310 of checking whether the CD medium is loaded in the CD-ROM drive unit 150 'is performed. If no media is loaded, wait for loading. Subsequently, when a CD is loaded in the CD-ROM drive unit 150 ', the CD-ROM is a video or a CD for audio or a CD. A step 320 of distinguishing whether a CD is performed is performed.

If the loaded CD medium is an image CD-ROM, the image accompaniment mode 330 is performed, and the loaded CD medium CD is an image CD. If it is not a CD-ROM, the operation 340 determines whether it is a video CD. In the case of a video CD, the video CD mode 350 is performed. In the case of an audio CD rather than a CD, the CD-DA or CDG mode 360 is performed.

The image accompaniment mode 330, which is the core of the present invention, enters the accompaniment mode 330 when the user loads the image accompaniment CD-ROM (CD-ROM) into the CD-ROM drive unit 150 '. When the music is inputted through the key processing means 130, the microprocessor 100 reads the selected song number, records it in the system RAM 110, and checks the input key by the control program. When the microprocessor 100 gives a CD-ROM drive unit 150 'a song data transfer command for the selected song according to the checked input key, the CD-ROM drive unit 150' displays the corresponding song information. The read data of the data structure shown in FIG. 4B for the song is read and transmitted to the system RAM 110 in a direct memory access (DMA) manner through the block decoder 151.

MIDI accompaniment data of the song data for the song is input to the sound source processor 142 under the control of the microprocessor 100, and the digital accompaniment signal of the actual accompaniment sound according to the sound source is output from the sound source processor 142. The audio signal is input to the digital / analog converter 146 via the audio mux 144 and converted into an analog accompaniment signal, and then mixed in the audio mixer 148 with the user's voice signal input to the external microphone 147. Is output.

As described above, at the same time the accompaniment signal is processed by the audio processing means 140, the font code of the lyrics caption among the song data for the song is controlled by the microprocessor 100. The font data of the letter in accordance with the text is read from the system ROM 120, processed, and outputs the lyrics subtitles, and inputs them to the video mixer 166.

When the microprocessor 100 refers to the still image table for the background image among the song data for the song, checks the still image index recorded therein, and outputs the still image as the background image. The still picture data for the background image to be output as the background image of the subtitle is transferred from the block decoder 151 of the CD-ROM drive unit 150 'to the background graphic processor 162 in a DMA manner, and the background graphic processor 162 is used. The digital processing apparatus inputs the still image data for the background image to generate a digital video signal for the background image, and inputs it to the video mux 163.

On the contrary, when the microprocessor 100 checks the video index recorded therein with reference to the video image table for the wallpaper among the song data for the selected song, and outputs the video as the background image of the lyrics subtitle at the time of accompaniment of the song, The video data for the background image is transferred from the block decoder 151 of the CD-ROM drive unit 150 'to the video processing unit 170 by the DMA method, and the video processing unit 170 processes the input background video data. A video digital video signal for a background is generated and input to the video mux 163.

That is, the microprocessor 100 checks the still picture table and the video table for the song and determines whether the still picture or the video is used as the background image of the lyrics subtitle at the time of accompaniment. The digital video signal for the background image is inputted to the video mux 163, and the video mux 163 selects and outputs the corresponding digital video signal for the background type of the video mux 163 to be input to the composite video signal converter 165. do.

In the composite video signal converter 165, the input digital video signal for the background screen is converted into an analog video signal and outputted, and then passed through the analog mux 165 under the control of the microprocessor 100. The video mixer 166 is input to the video mixer 166, and the video mixer 166 is mixed with the lyrics subtitles output from the lyrics subtitle processor 161 and outputs the lyrics subtitles overlaid on the background screen.

In this case, when there is an external video signal for a background screen input to the external video input terminal 168, the external video signal passes through the analog mux 166 under the control of the microprocessor 100, and then the video mixer 166. In FIG. 1, the lyrics image is mixed with the lyrics caption output from the lyrics caption processor 161 to output a background image in a form in which the lyrics subtitle is overlaid.

As a result, the video processing means 160 outputs the moving image or the still image with the lyrics subtitle overlaid on the background screen, and the audio processing means 140 outputs the user's voice signal mixed with the accompaniment signal.

On the other hand, when the loaded CD medium is a video CD, the video CD mode 350 is performed under the control of the microprocessor 100, which is the CD-ROM drive unit 150 '. The video CD (CD) is played back and the video CD (CD) data is transmitted to the video processing means 170 through the block decoder 151, and the video CD data is processed by the video processing means 170. The digital audio signal is output as a digital audio signal and a video signal.

The digital audio signal is input to the audio mux 144 of the audio processing means 140, and the digital video signal is input to the video mux 163 of the video processing means 160.

At this time, under the control of the microprocessor 100, the audio mux 144 selects the digital audio signal output from the video processing unit 170 and inputs the digital audio signal to the digital / analog converter 146, and the digital / analog converter 146. ) Is converted into an analog audio signal, and then amplified by an amplifier of the audio mixer 148 and then output, and further, the digital image of the video processing means 170 in the video mux 163 is controlled by the microprocessor 100. After the video signal is selected and input to the composite video signal converter 164, the composite video signal converter 164 is converted into an analog composite video signal and passes through the analog mux 165 under the control of the microprocessor 100. And output via the video mixer 166.

In addition, when the loaded CD medium is a CD-DA or a CDG, the CD-DA or CDG is controlled by the microprocessor 100. The mode 360 is performed, in which the CD-DA or CDG disc is reproduced in the CD-ROM drive unit 150 'and output from the digital signal processor 152. CD-DA data) is input to the audio mux 144 of the audio processing unit 140, and then passes through the audio mux 144 under the control of the microprocessor 100 and then to the digital to analog converter 146. The signal is converted into an analog audio signal, amplified by the amplifier of the audio mixer 148, and then output.

In the case of CDG, audio output is processed in the same manner as in the case of CD-DA, and the processing of video graphics is controlled by the microprocessor 100. The digital cdg (CDG) signal output from the unit 150 'is decoded and output by the background graphic processor 162 and then the video mux 163 is controlled by the microprocessor 100. After passing through the signal, it is input to the composite video signal converter 164 and converted into an analog composite video signal, and then passed through the analog mux 165 under the control of the microprocessor 100, and then output through the video mixer 166. .

5 shows another embodiment of a data structure recorded on an image accompaniment-only CD-ROM.

FIG. 5A corresponds to FIG. 4B, whose program code area and song data area are the same as those in FIG. 4B.

According to the data structure shown in FIG. 5, only a moving picture can be used as a background image of the lyrics subtitle.

As shown in b, a table, a video table, and a video matching table exist in the table area of FIG. In the song table, as shown in Fig. 6A, the size of the song data, the video matching table number, the pitch, and the time when the song was released are stored for each of the songs.

In the moving picture table, as shown in b of FIG. 6, the size and group number of the moving picture data are assigned to the moving picture data for the background image composed of predetermined time periods, for example, two minutes. Group numbers are classified according to the subject of moving image data and can be assigned as shown in the following table.

At this time, when a plurality of moving picture data of a predetermined time unit are generated based on a mountain, a group number of mode G1 is assigned to each.

The video matching table stores video matching table numbers and group numbers corresponding to the video matching table numbers. The video matching table number is also stored in the song table of FIG. 6A, and one matching table number is stored for each song, which is used to determine a combination of videos used as a background image of the accompaniment.

For example, if M1 is stored as a moving picture matching table number in a table of a song, M1 is retrieved from the moving picture matching table of FIG. 6C, and group numbers G1, G2, and G3 are obtained as shown. This means that the video of the mountain, river and beach is used as the background of the song. In addition, a large number of mountainous background images, that is, moving image data having a group number G1 may exist, one of which is randomly reproduced (RANDOM). The same applies to moving picture data having G2 and G3 as group numbers.

The time point at which the background image data changes from G1 to G2, G2 to G3, G3 to G1, and the like is the time point at which the considered portion of the song is played. The number of times the background image data changes depending on the number of times the song has been considered. If all the moving picture data is played before the consideration of a song, the last frame of the moving picture data is continuously played back as a still picture until the arrival of the song is reached.

That is, by using the data structure shown in Fig. 5, the combination of moving picture data to be used as the background of the lyrics subtitles can be known.

As described above, the operation method is the same except for the method of determining the combination of the moving picture data used as the background of the lyrics in the data structure of FIG. 4 and the data structure of FIG. 5 used in the present invention.

As described above, according to the present invention, the present invention includes an optical disc reproducing means and a video processing means therein to provide a video generated by itself as a background image of a lyrics subtitle, and a background image suitable for a selected song. It is possible to overcome the monotony of the existing video accompaniment device by providing the data, and all the data required for the accompaniment such as accompaniment data and lyrics data can be stored on the optical disc so that new songs can be easily added by simply replacing the optical disc. The above-described optical disc reproducing means and moving picture processing means have the effect of operating as a player of a video CD or a digital video disc.

Claims (7)

In the composition of the accompaniment apparatus that overlays the lyrics subtitles on the background and outputs the accompaniment data, A microprocessor 100 for controlling the whole image accompaniment apparatus, System RAMs and ROMs 110 and 120 for storing programs necessary for the microprocessor 100 to control the operation of the image accompaniment apparatus and providing various storage areas for the operation of the image accompaniment apparatus; A key processing unit 130 for processing a key signal of a song selected by a user and introducing the same into the microprocessor 100; Accompaniment data arranged in the form of MIDI data, lyrics subtitle data, still image data for background images, moving image data for background images, and images. Optical disc reproducing means 150 for reproducing accompaniment-only optical discs and general optical discs (including data stored in compressed form and uncompressed form) under the control of the microprocessor 100; Under the control of the microprocessor 100, the optical disc reproducing unit 150 receives the video compressed data for the image accompaniment wallpaper output by playing the optical disc accompaniment-only optical disc and outputs the moving image video signal for the background image in real time. Reproduces and outputs, or, under the control of the microprocessor 100, the optical disc reproducing means 150 reproduces the video compressed data outputted by reproducing the data stored in the compressed form and the general optical disc stored in the compressed form. Video processing means 170 for receiving and outputting the compressed video data and the audio compressed data to be decompressed to reproduce and output the video video signal and the audio signal in real time; Under the control of the microprocessor 100, the optical disc reproducing unit 150 receives the accompaniment data output by playing the optical disc accompaniment-only optical disc, generates an analog accompaniment signal, and generates an analog accompaniment signal. Audio processing means 140 for synthesizing and outputting the audio signal output by decompressing and outputting the audio signal output by the video processing means 170 under the control of the microprocessor 100; , Under the control of the microprocessor 100, the optical disc reproducing means 150 receives data such as the lyrics subtitles and still graphics, which is output by reproducing the video flexible accompaniment-only optical disc, and displays a background screen such as lyrics subtitles and still graphics. And one of the generated still image for the wallpaper or the video image signal for the background image reproduced and input by the video processing means 170 or the external video signal for the background image generated and input by an external image reproducing means. And a video processing means (160) for outputting by overlaying the generated lyrics with the selected subtitle on the selected background. The method of claim 1, The video processing means (170) is an image accompaniment device, characterized in that it comprises an MPEG decoder. The method of claim 1, The optical disc reproducing means 150 is composed of a CD-ROM drive. The optical disc reproducing unit 150 reproduces an image-only CD-ROM as a dedicated optical disc for accompaniment and stores the data in a compressed form. Video accompaniment device characterized in that it is possible to play a video CD (CD). Including the audio selection means in the audio processing means 140, when the CD-ROM drive reproduces an audio CD (CD-D) as a general optical disc, and outputs a digital CD-DA (CD-DA) signal, Video accompaniment device, characterized in that the analog CD-DA (CD-DA) signal can also be output by receiving this input. The method of claim 1, And the video processing means (160) comprises a CDG (CDG) decoder. The method of claim 1, The optical disc reproducing means 150 is composed of a digital video disc (DVD) drive, and plays a general digital accompaniment-only digital video disc (DVD) as the optical accompaniment-only optical disc, and stores the data in a compressed form. An image accompaniment device characterized by being capable of playing a general digital video disc (DVD) as an optical disc. In operating a video accompaniment apparatus having an optical disk playback means and a video processing means for overlaying lyrics subtitles on a background screen and outputting accompaniment data, A first step of determining whether the CD medium loaded on the optical disc reproducing means is an image accompaniment only CD-ROM or a general CD medium; As a result of the determination of the first step, when the image accompaniment-only CD-ROM is loaded in the optical disc reproducing means, the second step of playing the image accompaniment by the CD-ROM Wow, As a result of the determination in the first step, when a normal CD (CD) medium is loaded in the optical disc reproducing means, it is determined whether it is a video CD (CD-DA) or CD (CDG), and each CD (CD) is determined. 3) A method of operating an image accompaniment device, characterized in that the third step of playing the medium in sequence.