KR980011267A - Video Mr. DiPlayer's way of playing memory - Google Patents

Abstract

The method includes the steps of: (a) determining whether a storage stop key signal for memory reproduction is input when reproduction is performed; (b) A step of storing and storing the time information preceding the time information at the position by a predetermined time when the signal is inputted and stopping the reproduction; (c) determining whether the power is off; (d) Determining whether a reproduction key signal is input, determining whether a reproduction reproduction key signal is inputted after the power is turned on again when the power is turned off, and (e) And performing playback from that position.

Therefore, according to the present invention, time information at a position ahead of a position at which a storage stop key signal is input is stored at the time of storing and reproducing, and when a memory reproduction key signal is inputted, reproduction is performed from that position, It is possible to prevent a user from watching a desired screen due to a scratch or an external impact.

Description

Video Mr. DiPlayer's way of playing memory

FIG. 1 is a schematic block diagram of a general video decoder according to the present invention. FIG.

2 is a flowchart of a method of storing and playing back video data according to a preferred embodiment of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

10: pick-up 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 processor

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 compact disc player (hereinafter abbreviated as a video decoder), and more particularly to a video compact disc player The present invention relates to a method for storing and reproducing data.

As audio media and video media have been developed, an optical disc player has been developed which reproduces audio and / or video data recorded on a semi-permanent 12 cm optical disc.

Such optical disc players include compact disc players (CDPs), laser disc players (LDPs) and compact disc graphic players (CDGPs), video compact disc players (VCDPs: video a compact disk player, a compact disk player, and a video compact disk player are devices capable of reproducing video and audio at the same time.

In recent years, a digital video disk (DVD) using MPEG-2 moving picture compression technology has been developed. This is because a gigabyte (GB) capacity Data can be recorded and reproduced. In addition, there is a trend to continue to improve the performance.

On the other hand, the above-mentioned optical disk players reproduce video and / or audio recorded on an optical disk and output it through a screen and / or a speaker, and have higher signal-to-noise ratios than conventional video and / It is possible to reproduce a signal with picture quality and / or sound quality, without generating irregular reproduction and modulation noises, with few distortion, without ghost, and with random accessibility And it is in a trend of rapid development and widespread use.

Among these optical disc players, the video decoder has additional functions for convenience of various uses. Among the functions, the memory reproduction function is a function of reproducing a predetermined key signal, that is, When a memory playback key signal is input by the user, the playback is performed again from the stored position. Such a memory playback function is advantageous in that the user can perform playback from a desired position .

On the other hand, when the memory reproduction is performed in such a video decoder, conventionally, when a scratch on the disc and an external shock occur, data necessary for decoding can not be accurately detected and playback can not be performed in the correct memory reproduction position There is a problem that the case may occur.

DISCLOSURE OF THE INVENTION It is therefore an object of the present invention to provide a recording and reproducing apparatus and a recording and reproducing apparatus which are capable of recording and reproducing a video and / The video data is stored in a position ahead of the position at which the key is input by a predetermined time, and then the memory and playback are started from that position, thereby reducing the number of scenes that can not be watched by a scratch or disturbance on the disk. And to provide a method for storing and reproducing the same.

According to a preferred embodiment of the present invention for achieving the above object, there is provided a method of storing and playing back video data, comprising the steps of: (a) determining whether a storage stop key signal for storage reproduction is input when reproduction is performed; (B) when the storage stop key signal is input in the step (a), after reading the time information at the position, storing the time information ahead of the time information by a predetermined time and stopping the reproduction ) Determining whether the power is turned off when the step (b) is completed, (d) determining whether a memory reproduction key signal is inputted immediately after the power is not turned off in the step (c) Determining whether a memory reproduction key signal is input after the power is turned on; (e) when the memory reproduction key signal is inputted in the step (d) Search value in a step of executing the reproduction from that position.

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

Figure 1 is a schematic block diagram of a typical video codere player for carrying out the present invention.

1, a video signal decoder for carrying out the present invention includes a pick-up and actuator 10, a radio frequency (RF) signal amplification and servo signal processing unit 20, a motor driving unit 30, An audio signal processing unit 80, a video signal processing unit 90, a speaker 100, and a screen 110. The audio signal processing unit 80, the audio signal processing unit 80,

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

The motor driving unit 30 drives a spindle motor (not shown) to rotate the disc, drive the actuator unit 10, and the pickup unit 10 executes the optical pickup to read the data recorded on the disc Output. The RF signal amplification and servo signal processing section 20 amplifies the RF signal provided from the pick-up and actuator section 10 and also provides a servo control signal according to the signal to the motor drive section 30, So that focus servo and tracking servo can be performed.

The digital signal processing unit 60 processes the amplified RF signal supplied from the RF signal amplification and servo signal processing unit 20, performs error detection and error correction, and outputs the amplified RF signal to the MPEG decoder 70. The MPEG decoder 70 decodes the error corrected digital video signal and audio signal provided from the digital signal processing unit 60 based on the MPEG compression format and outputs the decoded digital video signal and audio signal to the video signal processing unit 90 and the audio signal processing unit 80 Output.

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 respectively outputted as a voice and displayed as an image.

According to the present invention, when the memory key signal is input from the key input unit 40 during the reproduction through the above-described process, the microcomputer 50 stores the time information of the position where the memory stop key signal is input Time information at a position which is a few seconds ahead of the current position is stored in an internal memory (not shown). When the memory stop key signal is inputted, the microcomputer 50 reads the time information with reference to the Q data recorded on the disc at the playback position at the time when the storage stop key signal is input, For example, 5 to 10 seconds and the preceding time (D) is stored and stored in the memory as the storage reproduction position, and thereafter the control signal is generated to stop the reproduction.

When the memory playback key signal is input from the key input unit 40, the microcomputer 50 stores the memory position data stored in the memory, that is, the time information D, And outputs the control signal to the motor driving unit 30. The motor driving unit 30 drives the motor driving unit 30 in accordance with the control signal of the microcomputer 50 And drives the pick-up unit 10 to the storage reproduction position to reproduce from that position.

That is, according to the present invention, after storing the time information (D) at a position a few seconds ahead of the position where the actual storage stop key signal is inputted, the position corresponding to the time information (D) , And playback is performed before a predetermined time.

2 is a flow chart of a method of storing and reproducing video coders according to a preferred embodiment of the present invention.

When reproduction is performed in step S10, it is determined in step S20 whether a storage stop key signal for storing a storage reproduction position is input. If the storage stop key signal is input in step S20, the flow advances to step S30, and if not, the flowchart is fed back.

If the process goes from step S20 to step S30, in step S30, referring to the Q data recorded on the disc, time information at the current playback position where the storage stop key signal is input is read, Time information at a position D ahead of the time information by a predetermined time, for example, several seconds (N).

Thereafter, in step S40, the reproduction is stopped and the standby state is maintained.

In step S50, the microcomputer 50 determines whether a power off key signal is input from the key input unit 40. [ If the power off key signal is input in step S50, the process proceeds to step S60, otherwise the process proceeds to step S70.

If it is determined in step S50 that the power on key signal is input in step S60, the process proceeds to step S60. If the power-on key signal is input in step S60, the flow proceeds to step S70, otherwise the flow is fed back.

If it is determined in step S70 that the storage reproduction key signal is input in step S70, the process proceeds to step S70 if the storage reproduction key signal is input in step S70 If not, the flow is fed back.

When the process proceeds from step S70 to step S80, the search for the memory location D in accordance with the time information stored in step S30 is started in step S80. In step S90, S30), it is determined whether or not the stored search position D has been reached.

When the current search position reaches the stored search position D in step S30 in step S90, the flow advances to step S100 to execute playback from that position in step S100, and the flow returns, do.

Therefore, in the present invention, in executing the memory reproduction in the video decoder, after storing the time information at a position ahead of the position where the storage stop key signal is inputted by a predetermined time, when the memory reproduction key signal is inputted, It is possible to prevent a desired screen from being watched due to a scratch or an external impact on the disk at the initial stage of the memory reproduction, thereby realizing a more stable memory reproduction.

While the present invention has been particularly shown and described with respect to particular preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (1)

A method for storing and playing back a video compact disc player, comprising the steps of: (a) determining whether a storage stop key signal for memory reproduction is input when reproduction is performed; (B) when the storage stop key signal is input in the step (a), after reading the time information at the body, storing time information ahead of the time information by a predetermined time and stopping the reproduction; (C) determining whether the power is turned off when the step (b) is completed; (d) if the power is not turned off in the step (c) Determining whether a memory reproduction key signal is input after the power is turned on again; (E) if the storage / playback key signal is input in the step (d), searching for a storage / storage location in the step (b) and executing reproduction from the position. ※ Note: It is disclosed by the contents of the first application.