KR970002677B1 - Device to prevent breaking of begining screen in compact disc graphic player - Google Patents

Abstract

If received operation order signal is replaying order signal, microcomputer(16) outputs initialization data display signal so DRAM(14) impresses meaningless initialization data to CD-G circuit(12) according to the initialization data display signal outputted from that microcomputer(16). The initialization data impressed to CD-G circuit is outputted by decoding to initialize screen.

Description

Initial screen crack prevention device of compact disc graphic (CD-G) player

1 is a block diagram of an initial screen crack prevention device of a compact disc graphics player according to the present invention,

2 is a flowchart for explaining the operation of the initial screen crack prevention apparatus of the compact disc graphics player according to the present invention.

* Explanation of symbols for main parts of the drawings

10: input device 12: compact disc graphics (CD-G) circuit

14: D-RAM 16: Microcomputer

18: decoder

The present invention relates to an apparatus for preventing initial screen cracking of a compact disc graphic player, and in particular, to prevent the screen from being deformed or broken due to a malfunction in which previous data stored in a memory is displayed on a screen during initial screen playback. The first aspect of the present invention relates to an apparatus for preventing breakage of an initial screen of a compact disc graphics player.

In general, a compact disc player using a CD-G (Compact Disk Graphic) uses a CD-G chip and a D-RAM to play back video and audio recorded on the disc. Before the initial screen reproducing operation or the initialization of the CD-G and D-RAM, data stored in the D-RAM is displayed on the screen so that the preceding image is displayed instead of the original initial screen.

As such, when the preceding image is displayed, the user may not only feel that the current operation of the compact disc player in use is a malfunction, but also a user who is inexperienced in using the compact disc player may be mistaken as a malfunction state. Occurs.

Accordingly, the present invention has been made in view of the above-described circumstances, and its object is to output meaningless initialization data among the data of the D-RAM in the initial screen regeneration mode to make the screen state constant so that the preceding data is displayed on the screen. It is to provide an initial screen broken prevention device of a compact disc player to prevent the occurrence of malfunction.

In order to achieve the above object, there is provided an apparatus for preventing an initial screen cracking of a compact disc player according to the present invention, comprising: an input device capable of inputting a playback command and other command signals according to a desired video and audio information playback; CD-G circuit that reads out image data necessary for image reproduction when inputting image reproduction command signal from device, D-RAM storing screen data such as OSD required for image reproduction other than graphic data and meaningless initialization data; Determining the mode according to the command signal input from the input device to perform the corresponding operation and outputting the initialization data display signal to display meaningless initialization data stored in the D-RAM on the screen during the initial operation. Initialized by the CD-G circuit in accordance with the microcomputer and the initialization data display signal from the microcomputer And a decoder for decoding the output initial image data and decoding subsequent image data output from the CD-G circuit in accordance with the end of output of the initial image data.

As described above, according to the present invention, meaningless initialization data stored in the D-RAM is displayed on the screen according to the initialization data display signal output from the microcomputer during the initial operation according to the user's image reproduction signal input.

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

1 is a block diagram of a device for preventing the initial screen cracking of a compact disc graphics player according to the present invention, wherein reference numeral 10 denotes the reproduction of video and audio information desired by a user from among information recorded on a CD-G disc (not shown). And a remote controller as a device capable of inputting a reproducing command and other command signals. 12 is an integrated circuit that reads out image data necessary for reproducing an image when the image reproducing command signal is input from the input device 10. (IC; Integrated Circuit) is an integrated CD-G circuit, and 14 is a D-RAM in which screen data such as an OSD required for video reproduction and meaningless initialization data are stored in addition to graphic data.

According to a preferred embodiment of the present invention, the reference numeral 16 determines the mode according to the command signal input from the input device 10 to perform the operation accordingly and at the same time stored in the D-RAM 14 during the initial operation. A microcomputer that outputs an initialization data display signal to display meaningless initialization data on a screen, and 18 is an initial state initialized and output by the CD-G circuit 12 according to the initialization data display signal from the microcomputer 16; The decoder decodes the image data and decodes the subsequent image data output from the CD-G circuit 12 according to the termination of the output of the initial image data.

The initial screen break prevention operation by the initial screen break prevention device of the compact disc graphic player according to the present invention configured as described above will be described with reference to the flowchart of FIG.

Once, in step 20, the user inputs a desired operation command signal using the remote controller 10, in step 21 the microcomputer 16 determines whether the received operation command signal is a reproduction command signal. If the result of the determination is not a reproduction command signal, in step 22, the microcomputer 16 outputs an operation command signal to process the received operation command signal so that an operation corresponding to the received operation command signal is performed, while receiving the received operation command signal. If the signal is a play command signal, the microcomputer 16 outputs an initialization data display signal in step 23, so that the D-RAM 14 stores meaningless initialization stored according to the initialization data display signal output from the microcomputer 16. The data is applied to the CD-G 12 and the initialization data applied to the CD-G circuit 12 is output by the decoding of the decoder 18 to bring the screen state to the initial state. Subsequently, in step 24, the microcomputer 16 determines whether the continuous playback operation is currently being performed and causes the operation of the step 23 to be repeatedly performed if the continuous playback operation is being performed, while the playback operation is terminated. In step 25, the microcomputer 16 stops outputting the initialization data from the D-RAM 14, and at the same time, the CD-G circuit 12 reads the graphic data and the D-RAM 14 read from the CD-G disc. Video data other than the graphic data required for the video call output applied from the C-G image, and the decoder 18 decodes the video data output from the CD-G circuit 12 and outputs it as a video signal. Is played.

As described above, according to the apparatus for preventing the initial screen crack of the compact disc graphic player according to the present invention, meaningless initialization data stored in the D-RAM is stored in accordance with the initialization data display signal output from the microcomputer during the initial operation according to the user's video playback signal input. Since it is displayed on the screen, unlike the conventional method in which the preceding video signal is displayed on the screen according to the reproduction of the initial screen, it is possible to prevent the occurrence of judgment error due to cracking phenomenon and deformation of the screen.

Claims (1)

An input device 10 capable of inputting a playback command and other command signals according to desired video and audio information playback, and video data necessary for video playback upon inputting a video playback command signal from the input device 10; A CD-G circuit 12 for reading the data, a D-RAM 14 storing screen data such as OSD required for image reproduction other than graphic data, and meaningless initialization data, and the input device 10 The microcomputer 16 for determining a mode according to the command signal to perform an operation according to the command signal and outputting an initialization data display signal to display meaningless initialization data stored in the D-RAM 14 on the screen during initial operation. And an output type of initial image data while decoding initial image data initialized and output by the CD-G circuit 12 according to the initialization data display signal from the microcomputer 16. The CD-G circuit 12, the initial screen breakage prevention device for a compact disk player, characterized in that configured by a decoder 18 for decoding the subsequent image data that is output in accordance with the.