KR0181073B1 - Playback method using an entry data in a video compact disk player - Google Patents

Abstract

The present invention relates to a search and playback method of a video CD player, comprising: (a) initializing an entry number (N) and a playback time (T) thereof when an entry search key is input and reading time data for each entry; (B) transferring the pickup to the position according to the time data for the N-th entry, and then performing playback for a predetermined time T; (c) determining whether a playback key signal is input; (d) if the playback key signal is input in step (c), performing playback from that position; and (e) if the playback key signal is not input in step (c), the entry search off key signal is input. If it is determined and inputted, perform normal playback from the position. If not, increase the entry number by '1', and (f) compare the entry number increased by '1' with the maximum entry number in step (e). Same And stopping the video CD player and otherwise returning to step (b) of transporting the pickup according to the time data for the '1' incremented entry number and executing playback, such as a movie or the like. When the track is playing for a long time, it is possible to grasp the entire content more quickly and conveniently and to search for and play the desired part by registering and executing entry data for the important scene or part during disc production.

Description

PLAYBACK METHOD USING A ENTRY DATA IN A VIDEO COMPACT DISK PLAYER

1 is a schematic block diagram of a video CD player for practicing the present invention.

2 is a structural diagram of an entry table.

3 is a flowchart of a method of entry search playback of a video CD player according to the present invention.

* Explanation of symbols for main parts of the drawings

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

30: motor drive unit 40: key input unit

50: microcomputer 60: digital signal processing unit

70: MPEG decoder 80: audio signal processor

90: video signal processing unit 100: speaker

110: monitor

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video CD player, and more particularly, to an entry searching and reproducing method of a video CD player for setting up entry data on a critical part in a disc production and searching and playing the screen accordingly.

Conventional optical disc reproducing apparatuses include a compact disc player (CDP), a laser disk player (LDP) and a compact disk graphic player (CDGP). A disc player is a device that can play audio only. A laser player and a compact disc graphics player can play both video and audio simultaneously, but recently, a video that can play video and audio on a disc of the same size as a general compact disc. Compact disc players (hereinafter referred to as video CD players) have also been developed and used, and recently, digital video discs (DVDs) using MPEG-2 moving picture compression technology have been developed. Including a moving picture in the same 12cm optical disc GB: play to record the data of the (giga byte GB) capacity, and also, it is a trend that continued to develop to the performance improvement.

On the other hand, such optical disc reproducing apparatuses reproduce images and / or audio recorded on optical discs 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. It is widely used because it can reproduce signals in image quality and / or sound quality, does not generate noise due to irregular reproduction and modulation, has very little distortion, no ghost (virtual), and random access. There is a trend.

Recently, an optical disc changer system has been developed, which includes a plurality of disc trays, mounts the same number of discs, and reads and reproduces data recorded on tracks of each disc in a sequential or random manner.

On the other hand, among these optical disc players, the video CD player has an image search function and an entry playback function.

By the way, the conventional image search function can perform image search for all the recorded data, but it takes a lot of time, and the conventional entry reproduction method cannot show much of the data, and the user has to continue to operate.

In particular, when long time data is recorded on one track such as a movie, there is a problem that the image search function and entry reproduction as described above are difficult, and it is difficult to search a desired part by setting the track number.

Accordingly, the present invention has been devised to solve such a problem, and an object of the present invention is to provide time-critical data of important scenes and chapters at the time of disc production when a track has a long playing time such as a movie. It is to provide a video CD player entry search and playback method that allows users to quickly search this section after registering it in the entry table to grasp the contents recorded on the disk or to play the desired section.

According to a preferred embodiment of the present invention for achieving this object, the entry data is reproduced in accordance with this data after registering the time data for the beginning of the important scene and the playback times in this portion in the disc creation during disc production. A video CD player entry search playback method comprising: (a) initializing an entry number (N) and a playback time (T) when an entry search key is input, and reading time data for each entry; b) transferring the pickup to the position according to the time data for the N-th entry, and then performing playback for a predetermined time T; (c) determining whether a playback key signal is input; Performing playback from the position when the playback key signal is input in step (c); and (e) when the playback key signal is not input in step (c). Determining whether or not a re-search off key signal is input, if the input is performed, normal playback from the position; if not, increasing the entry number by '1', and (f) the entry increased by '1' in step (e). Stopping the video CD player if the number is matched against the maximum entry number, and otherwise returning to step (b) of transporting the pickup according to the time data for the incremented entry number and executing playback. Include.

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

1 is a schematic block diagram showing the hardware of a video CD player for practicing the present invention.

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

The pickup and actuator unit 10 executes optical pickup from a disk loaded in a disk tray (not shown) and outputs an RF signal read accordingly.

In addition, the motor driver 30 drives a motor (not shown) to rotate the disk and drive the actuator unit 10.

In addition, 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 driving unit so that the focus servo and the tracking servo can be performed. do.

The digital signal processor 60 digitally processes the amplified RF signal provided from the RF signal amplification and servo signal processor 20 and outputs the digital signal to the MPEG decoder 70. After decoding, the video signal is output to the video signal processor 90 and the audio signal processor 80.

Then, the audio signal processor 80 and the video signal processor 90 process the decoded audio and video signals provided from the MPEG decoder 70 and output them to the speaker 100 and the monitor 110, respectively. The 100 and the monitor 110 display audio and an image, respectively.

On the other hand, in the present invention, when the entry search key signal for entry search reproduction is input through the key input unit 40, the microcomputer 50 is read when the disk is loaded and refers to the entry table stored in the internal memory (not shown), respectively. Search playback is executed for a preset time for the entry of. The structure of this entry table is as shown in FIG. That is, as shown in Fig. 2, entries 1 to N record the time data at the critical part determined at the time of disc production, that is, the relative time data at the position relative to the total reproduction time.

That is, the microcomputer 50 generates a control signal to the motor drive unit 30 according to the time data for each entry as shown in FIG. 2 to drive a pickup transport motor (not shown) to each entry. After the pickup is transferred to the recorded position, playback is performed for a predetermined time at that position.

While the search and playback is being performed, the user finds a desired part and inputs the general playback key signal through the key input unit 40, or when the entry search key signal is input, the microcomputer 50 generates a control signal to generate the position. Start normal playback.

On the other hand, if the reproduction key signal or the entry search off key signal is not input, search reproduction is performed for all of the entries shown in FIG. 2, that is, entries 1 to N, respectively for a predetermined time.

3 is a flowchart for executing a method of entry search playback of a video CD player according to a preferred embodiment of the present invention.

First, in step S10, it is determined whether an entry search key signal for entry search reproduction is input. In step S10, when the entry search key signal is input, in step S20, the entry number N for entry search reproduction and the search reproduction time for each entry are initialized.

Thereafter, in step S30, time data for each entry (entry 1 to entry N) is read out and stored. Then, in step S40, the pickup is transferred to the position of the initialized entry N, and in step S50, search reproduction for the entry is started.

In operation S60, the microcomputer 50 counts the built-in timer (not shown) to determine whether the entry search reproduction is completed for the preset time T, and the search reproduction is performed for the preset time T. If it is completed, the flow proceeds to step S70.

At this time, if the playback key signal is input in step S70, the process proceeds to step S80 to perform normal playback from that position, and if the playback key signal is not input, proceeds to step S90 to search for an entry to turn off entry search. Determines whether an off key signal is input.

If the entry search off key signal is input in step S90, the process proceeds to step S80 to perform normal playback, otherwise, in step S100, the entry number N to be searched and reproduced is increased by '1', and then, In step S110, the entry number incremented by '1' is compared with the maximum entry number (M).

At this time, if the entry number of which '1' is increased is greater than or equal to the maximum entry number M, the flow advances to step S120 and entry search reproduction is stopped in step S120.

On the other hand, if the entry number increased by '1' in step S110 is smaller than the maximum entry number M, the flow advances to step S40 to perform the flow again. That is, the pickup is transferred in accordance with the time data for the next entry, and entry search reproduction for the next entry is executed.

Therefore, the present invention can register the entry data during the production of a disc for important scenes and parts when content of a single track has a long playing time such as a movie, so that the entire contents can be grasped more quickly and conveniently when searching and playing. It has the effect of finding and playing back parts.

While the invention has been shown and described with reference to certain preferred embodiments, those skilled in the art will recognize that various modifications and changes can occur without departing from the spirit and scope of the invention as set forth in the following claims.

Claims (1)

In the entry searching and reproducing method of a video CD player which registers the time data for the start of an important scene and the playing times in this portion in the entry table when the disc is produced, and executes the entry searching and playing according to the data, (a) the entry Initializing an entry number (N) and a reproduction time (T) when the search key is input, and reading time data for each entry; (b) transferring the pickup to the position according to the time data for the N-th entry, and then performing playback for a preset time T; (c) determining whether a playback key signal is input; (d) executing reproduction from the position when the reproduction key signal is input in the step (c); (e) If the reproduction key signal is not input in step (c), it is determined whether the entry search off key signal is input. If the reproduction key signal is input, normal playback is performed from the position. Increasing; (f) comparing the entry number incremented by '1' with the maximum entry number in step (e) to stop the video CD player; otherwise, pick up according to the time data for the '1' increased entry number. Returning to step (b) of transferring and executing playback.