KR19980079032A - How to Schedule Play of Video Compact Disc Players - Google Patents

Abstract

The present invention provides a reservation and playback method of a video compact disc player for reserving and reproducing a desired track for each track recorded separately by data content on a predetermined disc, wherein the reservation key signal and the number of tracks to be reserved are reserved. A first step of inputting; A second step of storing and setting track numbers input in the first step, and reading and storing information data for each track from the disc; A third step of sequentially playing reservation tracks stored and stored in the second step when a reserved play key signal is input; And a fourth step of reading and displaying information data on the next reserved track of the track being reproduced in the third step, if the pause key signal is input.

Description

How to Schedule Play of Video Compact Disc Players

The present invention relates to a method of reserved playback of a video compact disc player. Particularly, when a pause signal is input while playing a reserved track, the present invention pauses the playing screen and allocates a predetermined portion of the screen. A reservation method for reproducing a video compact disc player capable of displaying initial screen information on a reserved song.

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

Such an optical disc player reproduces video and audio recorded on an optical disc and outputs it through a screen and a speaker, and has a higher signal-to-noise ratio than conventional video and audio playback devices, thereby reproducing a signal with better image quality and sound quality, and irregularities. It is rapidly developing due to various advantages such as no noise due to reproduction and modulation, very little distortion, no ghost, and random access.

In addition, such an optical disk player has been developed and widely used such as a compact disk player (CDP), a laser disk player (Laser Disk Player), a compact disk graphic player (CDGP) and a video compact disk player. Recently, a digital video disc (DVD) using MPEG-2 moving picture compression technology and a digital video disc player for reproducing the same have been developed, which includes several gigabytes of moving pictures in a 12 cm optical disc such as a current CD. It can record and play back data of giga byte (GB), and it is made to be compatible to play current compact disc and video compact disc.

In general, video compact discs are widely used for accompaniment of songs because they use clear and noiseless sound. The song accompaniment video compact disc contains accompaniment, singer, subtitles and background images of different songs on a plurality of tracks. In addition, the video compact disc player reads the TOC (Table Of Contents) area recorded on the video compact disc, and sequentially reproduces tracks recorded on the video compact disc based on the read TOC information. By the way, the video disc player is imposed with various functions for the convenience of the user, and among them, there is a function for reserving and changing the order of playing the tracks.

The reservation method of such a video compact disc player reads TOC information contained in the video compact disc when the disc is played, and stores the same in the video compact disc player. When a user enters a reserved key into the video compact disc player, previously stored TOC information is displayed on the screen. Then, the user reserves a predetermined track based on the TOC information displayed on the screen. The video compact disc player then stores the reserved tracks and performs playback in the reserved order. The video compact disc player also displays a number of reserved tracks on the screen for the user to recognize.

However, the conventional reserved track reproducing method displays only the number of the reserved track on the screen of the track being played, so that the initial screen information of the next reserved track is unknown.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and when a pause signal is input while playing a reserved track, a predetermined portion of the paused screen is allocated to display initial screen information of the next reserved track. It is an object of the present invention to provide a method of playing a reserved track of a video compact disc.

In order to achieve the above object, the present invention provides a reservation and playback method of a video compact disc player for reserving and reproducing a desired track for each track recorded separately by data content on a predetermined disc. A first step of inputting a key signal and the number of a track to be reserved; A second step of storing and setting track numbers input in the first step, and reading and storing information data for each track from the disc; A third step of sequentially playing reservation tracks stored and stored in the second step when a reserved play key signal is input; And a fourth step of reading and displaying information data on the next reserved track of the track being played back in the third step stored in the second step when the pause key signal is input.

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 an overall block diagram of a video compact disc player for carrying out the reserved playback method of the present invention;

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

Explanation of symbols for the main parts of the drawings

10: disk 20: key input unit

30: control unit 40: optical pickup unit

50: RF signal amplification unit 60: digital signal processing unit

70: servo signal processing unit 80: motor and motor drive unit

90: MPEG decoder 100: video signal processing unit

110: monitor 120: audio signal processing unit

130: speaker 140: storage 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 an overall block diagram of a video compact disc player for performing a reserved track playback method according to the present invention.

Referring to FIG. 1, a video compact disc player includes a disc 10, a key input unit 20, a control unit 30, an optical pickup unit 40, an RF signal amplifying unit 50, a servo signal processing unit 70, and a motor. And the motor driver 80, the digital signal processor 60, the MPEG decoder 90, the video signal processor 100, the monitor 110, the audio signal processor 120, the speaker 130, and the storage 140. Include.

The optical pickup unit 40 outputs an RF signal (video, audio or text) that is read according to the optical compact disc player performing optical pickup from the disc 10 in the playback mode.

The RF signal amplifying unit 50 amplifies an RF signal provided from the optical pickup unit 40 and provides it to the digital signal processing unit 60, and also detects a focus and tracking error signal from the RF signal, thereby providing a servo signal processing unit ( 70).

The servo signal processing unit 70 provides a servo signal according to the focus and tracking error signal provided from the RF signal amplifying unit 50 to the motor and the motor driving unit 80 so as to perform tracking and focus servo.

In addition, the motor and the motor driving unit 80 rotates the disk 10 and the optical pickup unit 40 performs the optical pickup to read the data recorded on the disk 10 to output the RF signal.

The digital signal processing unit 60 processes the amplified RF signal provided from the RF signal amplifying unit 50 as a digital signal, and outputs the digital signal to the MPEG decoder 90 which has performed error detection and error correction.

The MPEG decoder 90 separates an error corrected bit stream type digital signal provided from the digital signal processor 60 into a video signal and an audio signal, and the audio signal and the video signal are based on the MPEG video compression format. After decoding, the audio signal is output to the audio signal processor 120 and the video signal processor 100, respectively.

The audio signal processor 120 converts the decoded audio signal provided from the MPEG decoder 90 into an analog signal and outputs the analog signal to the speaker 130.

The video signal processing unit 100 processes the decoded video signal provided from the MPEG decoder 90, decodes and processes the sub picture signal, outputs the video signal to the monitor 110, and displays the same.

Meanwhile, the key input unit 20 provides a function key signal for performing a predetermined function in the video compact disc player, and the control unit 30 configures control signals according to the key signal provided from the key input unit 20, respectively. Generated as elements and controls to allow certain functions to be executed.

When a predetermined track is reserved from the user, the storage 140 receives and stores initial screen information of each reserved track from the MPEG decoder 90 and stores the addressed information according to the request of the MPEG decoder 90. The initial screen information of the pre-stored reserved track is output to the video signal processor 100 to be displayed on the monitor 110.

FIG. 2 is a detailed flowchart showing a preferred embodiment of the method for displaying a reserved song according to the present invention. Referring to FIG.

First, when the disc 10 is mounted and driven in the video compact disc player, the controller 30 reads TOC information recorded on the disc through the optical pickup unit 40. The control unit 30 stores the read TOC information in the internal memory.

Next, the controller 30 determines whether the reservation key signal is provided through the key input unit 20, and when the reservation key signal is provided, reads out the prestored TOC information and outputs the same through the monitor 110 so that the user can recognize the reserved key signal. . Then, the user can select a track number to reserve based on the TOC information displayed on the monitor 110. Then, the controller 30 determines whether the number of the reserved track provided through the key input unit 20 has been input (S1).

Subsequently, when a reserved track number is input in step S1, the controller 30 stores time information on a track start position with reference to the track number and TOC information in an internal memory. In addition, the controller 30 controls the servo signal processor 70 to read initial screen information about the stored track number. The servo signal processing unit 70 controls the optical pickup unit 40 to search for each reserved track. At this time, the initial screen information of the reserved track read out from the optical pickup unit 40 is provided to the digital signal processing unit 60 through the RF signal amplifying unit 50 to process digital signals. 90 is provided, decoded, and provided to the storage 140, and initial screen information of each reserved track is addressed and stored in the storage 140 according to the above-described process (S2).

Then, the controller 30 determines whether the reserved playback key signal is input (S3). At this time, when the reserved playback key signal is input, the controller 30 sequentially plays the reserved track. For example, assuming that a total of 10 tracks are recorded on the disc 10 and tracks 2, 4, and 6 are reserved among the 10 tracks, a reserved play key signal is provided from the key input unit 20. The controller 30 controls the servo signal processor 70 to allow the optical pickup unit 40 to search for the start position of track # 2. When the optical pickup unit 40 reaches the start position of track No. 2, the controller 30 controls playback to start from the start position of track no. Next, when the playback of track 2 is finished, the controller 30 searches and plays track 4, and when the playback of track 4 is finished, the control unit 30 searches and plays track 6 (S4).

When the playback of the reserved tracks is executed, the controller 30 determines whether the pause signal is input through the key input unit 20 (S5). When the pause signal is input, the track 30 is reproduced at that time. Pause. At the same time, the control unit 30 generates a control signal to the MPEG decoder 90, whereby the MPEG decoder 90 tracks that are currently being reproduced from the initial screen information on the reserved track stored in the storage 140. Detects initial screen information of the next track of the track and provides it to the video signal processor 100. The video signal processor 100 processes the initial screen information by PIP (Picture In Picture) and outputs it to the monitor 110. The monitor 110 allocates a predetermined portion of the paused playback screen to display initial screen information on the next track (S6). For example, if a pause signal is provided to the controller 30 while the track 2 is currently being played, the controller 30 stops playback of track 2, and simultaneously generates a control signal to the MPEG decoder 90. The initial screen information of track 4, which is the next reserved track, is read from the storage 140 and provided to the video signal processor 100, so that the initial screen information of track 4 is paused and the video signal of track 2 is paused. The image is displayed as a still image on a predetermined area of the monitor 110.

Then, the controller 30 determines whether the pause release key signal is input from the key input unit 20 (S7). At this time, if the pause release key signal is not provided, the process returns to step S6 and pauses. When the release key signal is provided, the controller 30 controls the servo signal processor 70 to perform playback from the point where playback is paused through the optical pickup unit 40. For example, if a pause release key signal is provided while the initial screen information of track 4 is displayed on the screen of track 2, which is paused, the controller 30 continues from the time of track 2, which is paused. Playback is performed (S8).

Finally, the controller 30 detects whether the reservation regeneration is completed and returns to step S5 if the reservation regeneration is not completed and ends when the reservation regeneration is completed (S9).

As described above, the reservation reproducing method according to the present invention displays the initial screen information of the next reserved track in a predetermined portion of the paused screen when a pause key signal is supplied from the outside. There is this.

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)

A reserved playback method of a video compact disc player for reserving and reproducing a desired track for each track recorded separately by data content on a predetermined disc, the method comprising: A first step of inputting a reservation key signal and a number of a track to be reserved; A second step of storing and setting track numbers input in the first step, and reading and storing information data for each track from the disc; A third step of sequentially playing reservation tracks stored and stored in the second step when a reserved play key signal is input; And a fourth step of reading and displaying information data on the next reserved track of the track being played in the third step, if the pause key signal is input.