KR19980079034A - How to Display Information on the Video CD (CD) Changer - Google Patents

Abstract

The present invention relates to an information display method of a video CD changer for displaying information on a next disc of a disc currently being played during video CD (CD) changer playback. To this end, the present invention provides a method of displaying information of a video 3CD changer for displaying information on a next disc of a disc currently being played, comprising: a first step of determining whether three video CDs are mounted in a tray of the video 3CD changer; A second process of reading and storing information on the three video CDs if three video CDs are mounted; A third step of reproducing a video CD corresponding to any one of the predetermined ones when a key signal for reproducing any one of the three video CDs is applied; A fourth step of reading information on the next video CD of the video CD being played when a signal for the information display key is provided while playing the video CD corresponding to any one of the predetermined ones; And a fifth step of displaying on the screen information of the next video CD of the video CD currently being played back from the information read out by the fourth step, so that the information of the video CD mounted in the video 3CD changer can be easily known. There is.

Description

How to Display Information on the Video CD (CD) Changer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a playback method of an optical disc player, and more particularly, to an information display method of a video CD changer for displaying information on a next disc of a disc currently being played during a video CD (CD) changer playback.

Computer and communication technologies are developing remarkably toward the 21st century information society. As a result, the amount of information such as audio, code information, images, and document information is increasing at a tremendous speed, recording video and audio data on a high-density recording medium that performs high-density recording due to the breakthrough of semi-permanent optical disk, that is, laser and optical technology. An optical disc player for playing this has been developed.

Such an optical disc player reproduces an image and / or an audio recorded on an optical disc and outputs it through a screen and / or a speaker, and has a higher signal-to-noise ratio than conventional image and / or audio reproducing apparatus, resulting in better image quality and / or sound quality. It is possible to reproduce signals with no noise, generate no noise due to irregular reproduction and modulation, very little distortion, ghostless, random access, etc. have.

In addition, such an optical disk player includes a compact disk player (CDP), a laser disk player (LDP), a compact disk graphic player (CDGP) and a video compact disk player (VCDP: video). compact disk player) has been developed and widely used, and recently, a digital video disk (DVD) using MPEG-2 moving picture compression technology and a digital video disk player for playing the same have been developed. It is possible to record and play back gigabytes (GB) of data including moving images in an optical disc of 12 cm, and it is also made to be compatible to play current CDs and VCDs.

On the other hand, the Video 3 CD changer is an optical disc player capable of mounting three discs and plays back discs according to a user's selection.

At this time, when playing the video 3CD changer, when the information of the next disc currently being played is to be known, the next disc currently being played must be played.

SUMMARY OF THE INVENTION The present invention has been made in view of the foregoing, and an object of the present invention is to provide an information display method of a video 3CD changer for displaying information on a screen of a next disc of a disc currently being played during video 3 CD changer playback. There is.

A feature of the present invention for achieving the above object is a method of displaying information of a video 3CD changer for displaying information about a next disc of a disc currently being played, wherein three video CDs are mounted in a tray of the video 3CD changer. A first process of determining whether there is; A second step of reading and storing information about the three video CDs when the three video CDs are mounted; A third step of playing a video CD corresponding to any one of the predetermined ones when a key signal for playing any one of the three video CDs is applied; A fourth step of reading information on a next video CD of the video CD being played when a signal for an information display key is provided while playing the video CD corresponding to any one of the predetermined ones; And a fifth step of displaying on the screen information of the next video CD of the video CD currently being played back from the information read out by the fourth step.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

1 is a block diagram of hardware for displaying information of a video CD changer according to a preferred embodiment of the present invention;

2 is a flowchart for performing a method of displaying information of a video CD changer according to the present invention.

<Description of the code | symbol about the principal part of drawing>

10 tray 20 CD deck portion

30: digital signal processor 40: MPEG decoder

50: micom 60: key input unit

70 memory 80 audio signal processor

90: video signal processing unit 100: OSD unit

Hereinafter, with reference to the accompanying drawings will be described in detail the operation of the preferred embodiment according to the present invention.

1 is a block diagram showing the configuration of an information display device of a video 3CD changer according to the present invention, which includes a tray 10 having a dish capable of mounting three video CDs, recorded on a disc by laser light. Provides video information and audio information, and is not shown in the drawings, but typically includes a CD deck unit including an optical pickup device, an RF (Radio Frequency) amplifier / servo signal processor, an actuator / motor driver, a disc motor, and the like. (20) read and demodulate the video information and audio information reproduced and provided by the CD deck unit 20 to perform frame detection signal detection, error detection and error correction, and then provide video and audio information. To store the TOC information provided by the digital signal processor 30 and the digital signal processor 30 that read and provide TOC information of the read-in area. An error corrected video provided by the microcomputer 40 to control and provide a CD deck control signal corresponding to the provided key signal, a key input unit 50 to provide a key signal selected by a user, and a digital signal processor 30. And an MPEG decoder 60 providing MPEG decoding by decoding audio information, a storage unit 70 storing TOC information under the control of the microcomputer 40, and reading the stored TOC information upon request of the microcomputer 40, the MPEG decoder. The audio signal processing unit 80 converts the audio information decoded and provided by the analog signal into an analog signal, processes the audio signal, and provides the speaker to the audio signal. Under the control of the video signal processor 90 and the microcomputer 40 which provide signal processing, the video signal provided from the video signal processor 90 is processed by OSD. It consists of OSD (on screen display) unit 100 that provides teoro.

FIG. 2 is a flowchart for performing the information display method of the video 3CD changer according to the present invention, which will be described in detail with reference to the block diagram shown in FIG.

First, the microcomputer 40 determines whether all three video CDs are loaded on the tray 10 in step 200. As a result of the determination, if all three video CDs are mounted on the tray 10, the flow advances to step 201 to read and store TOC information for the first disc. That is, the microcomputer 40 reads the TOC information for the first disk and controls the memory 70 to store the read TOC information.

In addition, the microcomputer 40 proceeds to step 202 and 203 to control to read the TOC information for the second disk and the third disk and store it in the memory 70.

On the other hand, the microcomputer 40 proceeds to step 204 to determine whether a key signal for playing a predetermined video CD from the key input unit 50 is provided. At this time, the key input unit 50 is usually composed of key metrics and provides a predetermined key signal pressed by the user to the microcomputer 40. When a key for playing any one of the three video CDs is pressed, The microcomputer 40 provides a key signal for playing the selected predetermined video CD.

That is, when the key signal for reproducing the predetermined video CD among the three video CDs is provided from the key input unit 50, the microcomputer 40 proceeds to step 205 and the CD deck unit 20 plays the predetermined video CD. To control.

At this time, the CD deck unit 20 jumps to the track corresponding to the predetermined video CD under the control of the microcomputer 40, reproduces the video and audio information contained in the predetermined video CD, and provides the digital signal processor 30 to the digital signal processor 30. In addition, the digital signal processor 30 digitally processes the video and audio information provided from the CD deck unit 20 and provides it to the MPEG decoder 60.

Accordingly, the MPEC decoder 60 MPEG-decodes and provides video and audio information provided by the digital signal processor 30. Accordingly, the audio signal processor 80 processes and provides audio information provided by MPEG decoding. The video signal processor 90 processes and provides video information provided by MPEG decoding.

As described above, the microcomputer 40 that controls the playback of the predetermined video CD selected by the user proceeds to step 206 to display the information display key, that is, the information of the next video CD of the predetermined video CD currently being played. It is determined whether a key signal is provided.

As a result of determination, when the signal for the information display key is provided from the key input unit 50, the microcomputer 40 proceeds to step 207 to read information of the next video CD of the predetermined video CD currently being played from the memory 70. In operation 208, the information of the memory 70 that is read out, that is, the information of the next video CD of the currently playing video CD and the currently playing video signal, is mixed and displayed on the screen.

As described above, in the information display method of the video 3CD changer according to the present invention, if all three video CDs are loaded in the tray, the information on the three video CDs is read and stored, and the next disc of the currently playing disc is read. When a key signal for displaying information on the screen is applied, information on the three stored video CDs is read out and displayed on the screen, so that the information on the disc mounted in the video 3CD changer can be easily known.

While the invention has been shown and described with respect to certain preferred embodiments, it will be apparent to those skilled in the art that various modifications, changes and omissions can be made without departing from the spirit and scope of the invention.

Claims (1)

An information display method of a video 3CD changer for displaying information about the next disc of the disc currently being played, A first step of determining whether three video CDs are loaded in a tray of the video 3CD changer; A second step of reading and storing information about the three video CDs when the three video CDs are mounted; A third step of playing a video CD corresponding to any one of the predetermined ones when a key signal for playing any one of the three video CDs is applied; A fourth step of reading information on a next video CD of the video CD being played when a signal for an information display key is provided while playing the video CD corresponding to any one of the predetermined ones; And And a fifth step of displaying on the screen information of the next video CD of the video CD currently being played back from the information read out by the fourth step.