KR19980075485A - How to play video compact disc player repeatedly - Google Patents

Abstract

The present invention relates to a repetitive playback method of a compact disc player, comprising: (a) reading and storing TOC (table of contents) data recorded in a lead-in area of a disc when a predetermined disc is loaded; (B) inputting and setting a plurality of tracks to be repeatedly played, and (c) repeating the track set in the step (b) sequentially as many times as the input number if the track repeat play key and the number of repeats are input. Performing playback; and (d) if the repeat playback of the set number of times for the last track among the tracks set for the repeat playback is completed or a repeat play cancel key signal is input, the repeat play is canceled and then released. And performing normal playback.

Accordingly, the present invention has the effect that the repeated playback can be performed sequentially for a set number of times for a plurality of desired tracks in the repeated playback in the video compact disc player.

Description

How to play video compact disc player repeatedly

The present invention relates to a repetitive reproduction method of a video compact disc player, and more particularly, to a repetitive reproduction method of a video compact disc player capable of executing repetitive reproduction for reserved tracks after reserving a plurality of desired tracks.

With the development of audio and video media, optical disc players for recording and reproducing video and audio data on semi-permanent optical discs have been developed.

Such an optical disc player reproduces an image and / or 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 Or it can reproduce the signal with sound quality, it does not generate noise due to irregular reproduction and modulation, very low distortion, no ghost and random access, so it is rapidly developed and widely distributed. There is a trend.

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. Also, 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 can record and play back gigabytes (GB) of data including moving images on a 12cm optical disc such as a CD, and it is also designed to be compatible to play current CDs and VCDs.

On the other hand, among such optical disc players, the video compact disc player has a built-in repeat play function for convenience. The repeat play function repeats a predetermined number of times for a desired track or a desired section on a given disc. It is used for various purposes, and in particular, it is widely used for learning languages.

However, such a repeat play function can repeat play only a predetermined number of times for only one desired track and one section, and if there are a plurality of desired tracks for desired repeat play, repeat play can be performed for each desired track. There was no inconvenience.

Therefore, the present invention has been devised to solve such inconveniences in the related art, and an object of the present invention is to set a desired number of tracks in the repetitive playback in a video compact disc player and to set up these reserved tracks. The present invention provides a method of repeating playback of a video compact disc player that can repeat playback sequentially as many times.

According to a preferred embodiment of the present invention for achieving this object, a repetitive reproduction of a video compact disc player for performing repetitive reproduction for a desired plurality of tracks among a plurality of tracks recorded separately by data content on a given disc. The method comprises the steps of: (a) reading and storing TOC (table of contents) data recorded in a lead-in area of a disc when a predetermined disc is loaded; Input setting a plurality of tracks; (c) repeating and reproducing the track set in step (b) sequentially as many times as the input number if the track repeat play key and the number of repeats are input; When repeating the set number of times of repeating the set number of times for the last track among the tracks set for the repeat play is completed or a repeat play cancel key signal is input, Releasing copy playback and executing normal playback from the released point.

1 is a schematic block diagram of a general optical disc player for practicing the present invention;

2 is a detailed flowchart of a repetitive playback method of a video compact disc player according to a preferred embodiment of the present invention.

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

10: pickup and actuator unit 20: RF signal amplification and servo signal processing unit

30: motor and motor drive unit 40: key input unit

50: microcomputer 60: digital signal processing part

70: MPEG decoder 80: Audio signal processor

90: video signal processing unit 100: speaker

110: Screen

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

1 is a schematic block diagram of an optical disc player for practicing the present invention.

As shown in FIG. 1, an optical disc player for carrying out the present invention includes a pickup and actuator unit 10, an RF (radio frequency) signal amplification and servo signal processor 20, a motor and motor driver 30, and a key input unit. 40, the microcomputer 50, the digital signal processor 60, the MPEG decoder 70, the audio signal processor 80, the video signal processor 90, the speaker 100, and the screen 110.

The pickup and actuator unit 10 performs an optical pickup from a disc loaded in a disc tray (not shown), and outputs the RF signal read out to the RF signal amplification and servo signal processing unit 20 accordingly.

In addition, the motor and the motor driving unit 30 drive the spindle motor (not shown) to rotate the disk and drive the actuator unit 10 so that the pickup unit 10 performs optical pickup to read data recorded on the disk. To output as an RF signal.

The RF signal amplification and servo signal processing unit 20 amplifies the RF signal provided from the pickup and actuator unit 10 and provides a servo control signal according to the signal to the motor and the motor driving unit 30 to provide the focus servo and the tracking servo. To be done.

The digital signal processing unit 60 digitally processes the amplified RF signal provided from the RF signal amplification and servo signal processing unit 20, performs error detection and error correction, and outputs the result to the MPEG decoder 70.

The MPEG decoder 70 decodes an error corrected digital video signal and an audio signal provided from the digital signal processor 60 based on the MPEG compression format and outputs the decoded video signal to the video signal processor 90 and the audio signal processor 80. .

The audio signal processing unit 80 and the video signal processing unit 90 process the decoded audio and video signals provided from the MPEG decoder 70 and output them to the speaker 100 and the screen 110, respectively. And the screen 110 are displayed as an audio and an image, respectively.

On the other hand, according to the present invention, read storage of TOC (table of contents) data indicating the disc content information recorded in the lead-in area of a given disc loaded in the disc tray (this is a function of the microcomputer 50). After the repetitive reservation key signal and the track numbers are input from the key input unit 40 after completion of the operation), the microcomputer 50 refers to the previously stored track number and the start of the corresponding tracks. The time data for the point and the completion point are stored in the internal memory (not shown) in sequence.

After that, when the track repetition regeneration key signal and the number of times of repetition are input from the key input unit 40, the microcomputer 50 generates control signals to the motor and the motor driving unit 30 by referring to the time information of each track set for storage. Thus, the pickup unit 10 transfers the first reserved track among the tracks reserved for repeated playback, and executes playback in the same manner as described above. When the playback is completed, the pickup is transferred to the next reserved track and playback is performed in the same manner for the track.

On the other hand, as described above, repeat play is completed as many times as the number of inputs for the last weakly set track during repeat play on the reserved tracks, that is, repeat play is completed for all the reserved tracks, or the key input unit is used. When the repeat playback cancel key signal is input from 40, the microcomputer 50 first cancels the repeat playback function, and then generates a control signal to the motor, the motor drive unit 30, etc., and then starts from the position where the repeat playback is released. Allow playback to occur.

Fig. 2 is a detailed block diagram showing a method for performing repetitive playback of a video compact disc player according to a preferred embodiment of the present invention.

After the predetermined disc is loaded in step S10, when reading and storing of the TOC data recorded in the lead-in area is completed in step S20, the flow advances to step S30.

Then, in step S30, it is determined whether the repetition reservation function key signal and the track number to be reserved are input.

In step S30, when the repeat reservation function key signal and the track number to be reserved are input, in step S40, the time for the start position of the tracks corresponding to the input track number is referred to with reference to the stored TOC data in step S20. Store and set the data and time data for the end position along with the track number.

Thereafter, in step S50, it is determined whether the track repeat play key signal and the number of repeats are input. When the track repeat play key signal and the number of repeats are input in step S50, in step S60, it is stored and stored in step S40. The repeated tracks are repeatedly played back in sequence as many times as the number of repeated inputs.

Thereafter, in step S70, it is determined whether the repetitive regeneration release key signal is input. If the repetitive regeneration release key signal is input in step S70, the flow advances to step S90, and if not, the flow advances to step S80. do.

When the process proceeds from step S70 to step S80, step S80 determines whether repeat play for all reserved tracks has been completed. If repeat play has been completed in step S80, the process proceeds to step S90. If not, the flow returns to step S70 to repeat the flow.

Finally, if step S70 or step S80 proceeds to step S90, step S90 cancels the repeat playback function and executes normal playback from the released position.

As described above, the present invention has the effect that the repetitive reproduction can be performed sequentially for a set number of times for a plurality of desired tracks in the repetitive reproduction in the video compact disc player.

Claims (1)

A repetitive playback method of a video compact disc player for performing repetitive playback for a desired plurality of tracks among a plurality of tracks recorded separately by data content on a predetermined disc, (A) reading and storing TOC (table of contents) data recorded in a lead-in area of the disc when a predetermined disc is loaded; (B) input setting a plurality of tracks to be played repeatedly; (C) if the track repeat play key and the number of repeats are input, sequentially repeating the track set in the step (b) as many times as the input number; (D) canceling repeat play and executing normal play from the released point if repeat play of the set number of times for the last track among the tracks set for repeat play is completed or a repeat play cancel key signal is input; Repeated playback method of a compact disc player containing.