KR19980023509A - Automatic memory playback method of optical disk system - Google Patents

Abstract

The present invention relates to an automatic memory reproducing method using an optical disc system for reproducing an optical disc. A first step of stopping reproduction and storing a reproduction stop position on the disc when a return reproduction key is provided from the outside during normal reproduction of the optical disc system; ; A second step of searching for a position before a preset time from a reproduction stop position on the disc; A third step of performing playback from a position before a predetermined time from a reproduction stop position on the disc; A fourth step of stopping playback and storing a playback stop position on the disk when a playback stop key is provided from the outside during normal playback of the optical disc system; And a fifth step of reproducing from the reproduction stop position on the disc when the return play key is provided to the optical disc system from the outside after the fourth step.

Description

Automatic memory playback method of optical disk system

The present invention relates to an automatic memory reproducing method of an optical disc system. In particular, when the disc stops suddenly in an undesired state during disc reproducing, it is necessary to perform the replay immediately from the stop position or to replay the screen already watched during disc reproducing. It is about automatic memory playback method that plays it back when.

Computer and communication technologies are developing remarkably toward the 21st century information society. Accordingly, the amount of information such as voice, code information, screen, and document information is increasing at a tremendous speed. Therefore, it is urgent to develop a device and a media capable of effectively storing and quickly processing it.

As such an information recording medium, magnetic tapes and magnetic disks that have applied magnetic recording have been mainly used, but new high density recording media capable of storing as much information as possible per unit area have been required as the information has exploded. With the recent development of optical technologies such as lasers, optical recording technology has been realized, and optical discs have been spotlighted as a new mass information storage medium.

Conventional optical disc reproducing systems, i.e. optical disc players, include a compact disc player (CDP), a laser disc player (LDP), and a compact disc graphic player (CDGP). In general, a compact disc player is a device capable of playing only voice, and a laser disc player and a compact disc graphic player are devices capable of simultaneously playing video and audio.

Recently, a video compact disc player capable of playing video and audio on a disc having the same size as a general compact disc has been developed and used.

On the other hand, such optical disc reproducing systems reproduce images and / or audio recorded on the optical disc and output them through a screen and / or a speaker, and have a higher signal-to-noise ratio than conventional image and / or audio reproducing apparatus, resulting in better image quality and / or Or it can reproduce the signal with sound quality, there is no noise caused by irregular playback and advocacy, there is very little distortion, no ghost, random access is possible, etc. Is in.

A disk of such an optical disk system is typically composed of a read in area A, a data area B, and a read out area C as shown in FIG.

In the lead-in area A, a menu for data contained in the data area is stored as a table of contents (TOC), and in the data area B, a substantial movie program or a karaoke program is stored. ) Contains the end data for the program in the data area B, and the like.

For example, in the case of a karaoke disc, the data area B will contain a plurality of songs and a background screen suitable for each song, and the lead-in area A will include the total number of songs in the data area and the start of each song. Data such as time, end time, total song time, and the like will be stored, and the lead-out area C will contain data relating to the end of reproduction of the data disc.

Therefore, when reproducing such an optical disc system, the position of each track of the disc is determined using the TOC information contained in the read-in area of the disc, and when a certain track is selected, the track is searched to perform the playback.

In such an optical disc system, when playback is suddenly stopped by pressing a stop key or the like in an undesired state during normal playback, a corresponding track including a position where playback is stopped must be designated again. In this case, the optical disc system does not replay after the point at which playback is stopped, but instead replays the designated track from the beginning, thereby making extremely unnecessary playback.

It is therefore a first object of the present invention to provide an automatic memory reproducing method for reproducing a file directly from a stop position when it is suddenly stopped in an undesired state during disc reproducing.

Another object of the present invention is to provide an automatic memory reproducing method for automatically reproducing a previously viewed screen during disc reproducing.

The present invention provides an automatic memory reproducing method using an optical disc system for reproducing an optical disc, in order to achieve the above object: if a return play key is provided from the outside during normal reproduction of the optical disc system, the reproduction stops and a reproduction stop position on the disc is provided. A first step of remembering; A second step of searching for a position before a preset time from a reproduction stop position on the disc; A third step of performing playback from a position before a predetermined time from a reproduction stop position on the disc; A fourth step of stopping playback and storing a playback stop position on the disc when a playback stop key is provided from outside during normal playback of the optical disc system; And a fifth step of reproducing from the playback stop position on the disc when the return play key is provided from the outside of the optical disc system after the fourth step.

1 is a general configuration diagram of an optical disc.

2 is a general configuration diagram of an optical disc system.

Fig. 3 is a detailed flowchart showing a preferred embodiment of the automatic memory reproducing method of the present invention.

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

100: disc 200: disc player

300,400: D / A conversion unit 500: control unit

600: key input unit

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

FIG. 2 is an overall configuration diagram of an optical disc system for performing the automatic memory reproducing method of the present invention. The disc 100, the TOC information contained in the lead-in area A of the disc 100, and the data of the disc 100 are shown in FIG. The video data of the program data reproduced by the disc player 200 and the program data reproduced by the disc player 200 are read out and reproduced from the program data recorded in the area B and the sub data recorded at regular intervals on the track of the disc 100. D / A (Digital / Analog) converter 300 for converting and outputting, D / A converter 400 for converting and outputting audio data of analogue program data reproduced by disc player 200, disc playback When the disc player 200 suddenly stops operating in an undesired state, the stop position on the disc 100 is determined by referring to the sub data provided from the disc player 200. Keys to the control unit 500 and the control unit 500 for controlling the disc player 200 to perform playback immediately from the stop position on the disc 100 or to automatically reproduce some of the program data that has already been played during the disc playback. The key input unit 600 provides a signal.

FIG. 3 is a detailed flowchart of the automatic memory reproducing method of the present invention performed by using the optical disc system shown in FIG. 2, which will be described below with reference to FIG.

First, in the normal play mode of the optical disc system (S1), the disc player 200 reads and plays the program data recorded on the disc 100, but the sub data recorded at regular intervals on the track of the disc 100 is controlled by the control unit 500. ), And the image data among the reproduced program data is provided to the D / A converter 300, and the audio data is provided to the D / A converter 300.

Therefore, the D / A converter 300 changes the analog image data provided from the disc player 200 and provides the analog data to a display device (not shown) such as a TV monitor.

In addition, the D / A converter 400 converts the voice data provided from the disc player 200 into analog and provides the same to an output device (not shown) such as a speaker.

On the other hand, the control unit 500 reads the sub data provided from the disc player 200 to detect the current playback position of the disc. The above-described sub data is recorded in tracks of the disc 100 at regular intervals, and time data. (Commonly referred to as Q data). At this time, the Q data represents a playback time required for playing back to the recording position of each sub data recorded at regular intervals on the track of the disk 100 during normal playback of the disk.

Therefore, by reading the sub data, the current reproduction position on the disc can be known.

As such, when the user provides the return play key signal to the control unit 500 using the key input unit 600 during the normal play mode (S2), the control unit 500 controls the disc player 200 to stop the play. On the other hand (S3), the sub data is read out and time data corresponding to the reproduction stop position on the disc 100 is stored in the internal memory (S4).

Then, the disc player 200 is controlled to search for a preset time, for example, 5 seconds before the play position from the play stop position on the disc 100 (S5).

The disc player 200 searches, for example, 5 seconds before the playback position from the playback stop position on the disc 100 under the control of the control unit 500. When the search is completed (S6), the control unit 200 controls the disc player 200 to perform playback from, for example, a playback position of 5 seconds before on the disc 100 (S7).

On the other hand, if a user accidentally provides a stop key signal to the controller 500 during playback (S8), the controller 500 controls the disc player 200 to stop playback (S9), and reads the sub data. The time data corresponding to the playback stop position on the disc 100 is stored in the internal memory (S10).

Then, when the return play key is provided from the key input unit 600 (S11), the control unit 500 refers to the play stop position data stored in the internal memory so that the play can be performed again from the play stop position. Control (S12).

Therefore, the disc player 200 resumes playback from the playback stop position under the control of the control unit 500.

As described above, the present invention is very convenient to perform the playback immediately from the stop position when it is suddenly stopped in an undesired state during disc playback, and to automatically play it when you want to see the screen already watched during disc playback. It works.

Claims (1)

In the automatic memory reproducing method using an optical disc system for playing an optical disc: A first step of stopping playback and storing a playback stop position on the disk when a return playback key is provided from the outside during normal playback of the optical disc system; A second step of searching for a position before a preset time from a reproduction stop position on the disc; A third step of performing playback from a position before a predetermined time from a reproduction stop position on the disc; A fourth step of stopping playback and storing a playback stop position on the disk when a playback stop key is provided from the outside during normal playback of the optical disc system; And a fifth step of reproducing from the playback stop position on the disc when the optical disc system is provided with a return play key from the outside after the fourth step.