KR19990005954A - Background player for video compact disc player and its control method - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

Background player for video compact disc player and its control method

2. The technical problem to be solved by the invention

To provide various background screens while playing an audio CD in VCDP

3. Summary of Solution to Invention

After storing the image in the ROM, when the audio compact disc is played, the image stored in the ROM is output to the image output device to provide as a background image.

4. Important uses of the invention

Provides wallpapers for video compact disc players, TVs, etc.

Description

Background player for video compact disc player and its control method

The present invention provides a video compact disc on which video information is recorded (COMPACT DISK), or a video compact disc player on which an audio CD on which audio information is recorded (VIDEO COMPACT DISK PLAYER). VCDP). In particular, it is for outputting a background screen when playing an audio CD in VCDP.

In general, a VCDP includes a CD player 1 for playing a video CD or an audio CD, as shown in FIG. 1; An MPEG device for decoding data output from the CD player 1 [MOVING PICTURE EXPERTS GROUP: A device according to the international standard of media integrated video compression] (hereinafter referred to as MPEG); A microcomputer (5) for controlling the operations of the CD player (1) and MPEG (2); A DRAM (DYNAMIC RANCOM ACCESS MEMORY) 6 connected to the microcomputer 5 and MPEG 2 to provide a temporary storage location; A video D / A converter (7) connected to the video signal output terminal of the MPEG (2) for converting a digital video signal applied from the MPEG (2) into an analog video signal; A video output unit (8) connected to the video signal output terminal of the video D / A converter (7) for outputting the video signal applied from the video D / A converter (7) to a video output device; An audio D / A converter (3) connected to the audio signal output stages of the CD player (1) and the MPEG (2) and converting the digital audio signal applied from the MPEG (2) into an analog audio signal; The audio output unit 4 is connected to the audio signal output terminal of the audio D / A converter 3 and outputs the audio signal applied from the audio D / A converter 3 to the audio output device.

The conventional VCDP reproduces information stored in a video CD or an audio CD through the CD player 1 and MPEG 2, and then the audio D / A converter 3 and the video D / A converter 7. ) And video and audio were output through the respective output units.

However, the conventional VCDP as described above has a problem in that an image cannot be provided when an audio CD is played, thereby degrading the original function of the VCDP.

In other words, although VCDP is a device that can enjoy video and sound at the same time, there is a problem that when using an audio CD can not perform a video function to provide an image.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems, and in particular, by using an external ROM storing image information, and outputting an image stored in the ROM when an audio CD is played, a background screen can be provided. The present invention provides a video playback device for a video compact disc player and a control method thereof.

In order to achieve the above object, the background image reproducing apparatus of the video compact disc player of the present invention is a video compact disc player for reproducing and outputting a video compact disc or an audio compact disc.

After the image is stored in the storage means, when the audio compact disc is reproduced, the technical feature is that the image stored in the storage means is output to the image output device and provided as a background image.

In addition, the storage means is preferably composed of a ROM under the control of the microcomputer for controlling the operation of the video compact disc player.

On the other hand, the control method of the background image reproducing apparatus of the video compact disc player comprises: an audio CD detecting step of detecting whether the compact disc to be reproduced is an audio compact disc; A first image output step of reading and outputting image data stored in the storage means when it is determined that the audio compact disc is being reproduced as a result of performing the audio CD detection step; After performing the first image output step, the second image which detects whether or not the reproduction of the audio compact disc is completed and outputs the next image stored in the storage means in units of a predetermined time until the reproduction of the audio compact disc is completed. It is characterized by its methodological construction that includes an output stage.

In addition, the method of reading an image in the first image output step or the second image output step is characterized in that the stored image is selected at random and read.

The apparatus for controlling a background screen of the video compact disc player and a control method thereof according to the present invention, in particular, after storing a plurality of images in a predetermined storage means, and outputs the image stored in the storage means when the audio CD is reproduced, By providing the product, the efficiency of the product can be improved.

1 is a block diagram showing the configuration of a typical video compact disc player;

2 is a block diagram showing an embodiment according to the technical concept of a background image reproducing apparatus of a video compact disc player of the present invention;

3 is a control flowchart showing a control method of a background image reproducing apparatus of the video compact disc player of the present invention.

* Explanation of symbols for the main parts of the drawings

10: microcomputer, 20: ROM, 30: MPEG, 40: video D / A converter, 50: video output unit, 60: DRAM, 70: CD player, 80: audio D / A converter, 90: audio output unit

Hereinafter, with reference to the accompanying drawings, an embodiment according to the technical idea of the background image playback apparatus and control method of the video compact disc player of the present invention configured as described above will be described in detail as follows.

In this embodiment, ROM is used as the storage means.

EXAMPLE

First, a plurality of video information is stored in the ROM.

2, the video signal output from the CD player 70 is output to the video output unit 50 through the microcomputer 10, the MPEG 30, and the video A / D converter 40. Sequentially connected, and the audio signals output from the CD player 70 are sequentially connected to be output through the audio D / A converter 80 and the audio output unit 90. Connected between the microcomputer 10 and the MPEG 20, the video stored in the ROM 20 is applied to the video D / A converter 40 through the decoding process of the MPEG 30 through the control of the microcomputer 10. This embodiment is configured so as to.

In the figure, reference numeral 60 denotes a DRAM.

Then, as shown in FIG. 3, the microcomputer 10 performs an audio CD detection step 100 for detecting whether the CD played in the VCDP is an audio CD or a video CD.

At this time, if it is determined that the CD played in the VCDP is an audio CD as a result of performing the audio CD detection step 100, the audio information stored in the audio CD is converted into an audio D / A converter 80 and an audio output unit ( At the same time as outputting the audio signal through 90, the video information stored in the ROM 20 is read out to output the video through the decoding operation of the MPEG 30 and the D / A conversion operation of the video D / A converter 40. The first image output step 200 to be output to the unit 50 is performed.

In addition, after performing the first image output step 200, it is detected whether or not the reproduction of the audio CD is completed and the next image stored in the ROM 20 is stored in a predetermined time until the reproduction of the audio CD is completed. The second image output step 300 for outputting is performed.

In other words, when it is determined that the audio CD is reproduced, the video data stored in the ROM 20, which is a storage means, is read, and then the video signal is decoded and output through the MPEG 20.

In this case, the plurality of images stored in the ROM 20 may be sequentially output in a predetermined order, or the images may be randomly output by determining an address in which each image is stored by a random variable. As a result, various images can be realized.

Therefore, the user can be provided with various images even when playing the audio CD.

On the other hand, although the ROM is used as the storage means in the above embodiment, it has been found that a compact disk, a floppy disk, a video tape, or the like can be connected and used with the driving apparatus within the scope not departing from the technical idea of the present invention. Put it.

As described above, the apparatus for controlling a background screen of the video compact disc player of the present invention and a method of controlling the same can provide various screens even when playing an audio CD through a storage means in which video information is stored. Not only will it be available, it will also be effective to increase the commerciality.

Claims (4)

In a video compact disc player for playing and outputting a video compact disc or an audio compact disc, And storing the image in the storage means, and outputting the image stored in the storage means to the image output device and providing the image as a background image when the audio compact disc is reproduced. The apparatus of claim 1, wherein the storage means comprises a ROM controlled by a microcomputer for controlling the operation of the video compact disc player. An audio CD detecting step of detecting whether or not the reproduced compact disc is an audio compact disc; A first image output step of reading and outputting image data stored in the storage means when it is determined that the audio compact disc is being reproduced as a result of performing the audio CD detection step; After performing the first image output step, the second image which detects whether or not the reproduction of the audio compact disc is completed and outputs the next image stored in the storage means by a predetermined time until the reproduction of the audio compact disc is completed. A control method of a background playback apparatus of a video compact disc player, characterized by comprising an output step. The apparatus of claim 3, wherein the image reading method of the first image output step or the second image output step comprises randomly selecting and reading a stored image. Control method.