KR19980058829A - Special playback methods for the improved video compact disc player - Google Patents

Abstract

The present invention relates to a special playback method of an improved video compact disc player. (A) When data for a repeat play key signal, a repeat section, and the number of repeats are input during a predetermined disc playback, Executing repetitive reproduction for the; (B) executing a search function until a search stop key signal is inputted when a search function key signal is inputted while executing repeat playback; (C) When the search function is completed, if the search completion position is within the repeating section by comparing the search completion position with the repeating section, the search section is repeated for the repeating section from the position where the search function is completed until the number of repeats entered in step (a) is reached. And performing repetitive playback.

Therefore, in the present invention, when the search function is executed during the execution of the repeat playback, if the position where the search function is completed does not go out of the repeat playback section, the repeat playback is continued in succession to the previously executed repeat playback without canceling the repeat playback function. By doing so, the user can eliminate the hassle of having to set the repeat play function again.

Description

Special playback methods for the improved video compact disc player

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a special playback method of an optical disc player. In particular, when the search function is executed during the repeat playback, if the search completion position is a predetermined position within the repeating section after the search function is completed, the playback continues continuously. A special playback method of an improved video compact disc player that is feasible.

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 the above-described optical disc players, the video compact disc player incorporates various special playback functions in order to provide ease of use.

Among these special playback functions, there are a repeat play function and a search play function. The repeat play function is a function of repeatedly playing a predetermined number of times for a predetermined section set by the user, and the search play function is a fast playback function during the section set by the user. Search and play back images at speed.

However, in the conventional video compact disc player, if the user executes the search playback function as necessary during the repeat playback function, the search playback function is performed irrespective of whether the search completion position is out of the repeat section or within the repeat section. When complete, repeat play is turned off.

Therefore, in this case, if the repeat playback function is canceled even though the image search is completed within the repeat and the section, the user has to set the repeat section again and execute the repeat function.

Accordingly, the present invention has been made to solve such a problem in the related art, and an object of the present invention is to provide a repeat play function when the search function is completed within a repeat section when the search function is executed during the repeat play function. It is to provide a special playback method of the improved video compact disc player that can repeat the playback function from the point where the search is completed without releasing it.

According to a preferred embodiment of the present invention for achieving this object, in playing a predetermined disc in a video compact disc player, the image search function is executed during the repeated playback function for a predetermined section and then repeated again. In the special playback method of the improved video compact disc player for executing the playback function, (A) if the data for the repeat playback key signal, the repeat section and the number of repeats are input during the playback of a predetermined disc, the input repeat Executing a repeat playback for the section; (b) executing a search function until a search stop key signal is input if a search function key signal is input during the repeat playback; and (c) the search. When the function is completed, the search completion position is compared with the search completion position and the repeating section is repeated. If it is in the liver, repeating the repetition section for the repetition section from the position at which the search function is completed until the number of repetitions input in step (a) is reached.

1 is a schematic block diagram of a typical video compact disc player for practicing the present invention.

2 is a detailed flowchart of a special playback method of an improved 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 executes an optical pickup from a disc loaded in a disc tray (not shown) and outputs an RF signal which is read 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.

Meanwhile, according to the present invention, the reproducing function key signal, the repetition interval, and the number of repetitions of the repetition reproduction function key signal for executing the repetition reproduction for a predetermined section from the key input unit 40 while the reproduction is performed through the above-described process. When the data is input, the microcomputer 50 generates a control signal to the motor and the motor driving unit 30 to drive the motor and the motor driving unit 30 to transfer the pickup unit 10 to the start position of the input repetition section. Perform repeat play.

If the search function key signal is input from the key input unit 40 during the execution of repetitive reproduction, the microcomputer 50 generates a control signal to the motor and the motor driver 30 to drive the motor and the motor driver 30. Thus, the pickup and actuator unit 10 is driven to execute the search function, thereby executing the search function from the disc.

On the other hand, after that, when the search stop key signal for releasing the search function is input from the key input unit 40, the microcomputer 50 generates a control signal to the motor and the motor driver 30 to drive the motor and the motor driver 30. The search function is canceled by driving, and at the same time, the search stopped position is repeatedly reproduced by comparing the time data of the search stopped position with the time data for the repeated reproduction section with reference to the Q data provided from the digital signal processing unit 60. If it is out of the section, normal playback is executed from that point. If it is not out of the repeat playback section, it repeats playback from the search stop position again and if the repeat playback is completed as many times as set by the input data, normal playback is normally executed. do. In other words, if the search function is executed during the repeat play, the repeat play function is canceled if the position where the search function is completed is out of the repeat play section, and if the search function is not out of the repeat play section, the repeat play function is not released. Repeat play is performed in succession to the previously executed repeat function.

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

During the reproducing in step S10, if the reproducing key signal and the data for reproducing, for example, the data for the repetition section and the repetition number, are input in step S20, the process proceeds to step S30. Repeat playback is executed in accordance with the repeat playback data input in step S30.

When repetitive playback is performed in step S30, it is determined in step S40 whether a search key signal for executing an image search function is input for a predetermined section. Proceed to S50 otherwise the flow is fed back.

When the search key signal is input in step S40 and the process proceeds to step S50, the search function is executed in step S50. When the search function is executed in step S50, it is determined whether a search function stop key signal is input in step S60. When the search function stop key signal is input in step S60, the process proceeds to step S70. In step S80, it is determined whether or not the search stop position, that is, the position where the search function is completed, is out of the repeat playback section input in step S20. In step S80, the search stop position is repeatedly played. If it is out of the section, the process proceeds directly to step S110, and if not, the process proceeds to step S90.

After that, when the process proceeds from the step S80 to the step S90, in step S90, the repeated playback is executed again from the position where the search is stopped and the process proceeds to the step S100.

In step S100, it is determined whether repetitive reproduction is completed, that is, it is determined whether repetitive reproduction for the repetition interval has been performed by the number of repetitions input in step S20. If the repeat playback is not completed in step S100, the flow is fed back. If the repeat playback is completed, the flow proceeds to step S110.

Finally, if proceeding from step S80 or step S100 to step S110, in step S110, normal playback is executed from the search stop position or the repeated playback completion position and the flow is returned.

As described above, in the present invention, when the search function is executed during the repeat playback in a video compact disc player, the repeat playback previously executed without releasing the repeat playback function when the search completion position does not leave the repeat playback section By executing the repeated playback in succession to the function, there is an effect that the user does not have to set the repeat playback function again.

Claims (1)

In the playback of a given disc in a video compact disc player, special playback of the improved video compact disc player for executing the picture search function during the repeat play function for a predetermined section and then executing the repeat play function again later In the method, (A) if a reproducing key signal, a repetition section, and a repetition number of data are input during the reproducing of a predetermined disc, performing reproducing for the input repetition section; (B) executing a search function until a search stop key signal is inputted when a search function key signal is inputted during execution of the repeat playback; (C) When the search function is completed, when the search completion position is compared with the repetition section and the search completion position is within the repetition section, when the number of repetitions input in step (a) is reached from the position at which the search function is completed; Executing the repeated playback for the repeated section until the special playback method of the improved video compact disc player.