KR19980058831A - Memory playback method of optical disc player - Google Patents

Abstract

The present invention relates to a memory reproducing method of an optical disc player.

To this end, the present invention stores and stores time data for a plurality of positions at which a memory stop key signal is input during reproducing, and then displays all stored time data when the memory reproducing key signal is input, If one time data is selected, playback starts from the position according to the time data. In addition, even when the stop key is input, time data at the stop position is stored, and playback is started from the stopped position when a continuous regeneration key signal is input later.

Therefore, the present invention conventionally compensates for the disadvantage of storing the time data for only one desired position in the memory reproducing and subsequently reproducing from that position, thereby storing the time data for all the memory positions desired by the user. Thereafter, there is an advantage that a desired predetermined storage position can be selected and playback can be performed from that position.

Description

Memory playback method of optical disc player

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a memory reproducing method of an optical disc player, and more particularly, to store storage position data for a plurality of positions during reproduction, and to select desired predetermined storage position data among a plurality of stored storage position data thereafter. A storage / playback method of an optical disc player for performing playback from a position.

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, such an optical disc player has a memory reproducing function that stops playback at a desired position during playback, stores time data at the stopped position, and then resumes playback from that position. It is built in.

That is, this function stores a position at which the user stops playback when the user cannot continuously play and watch the disc while the user is playing the predetermined disc. This function is to execute playback continuously.

However, conventionally, when the memory stop key signal is inputted to execute the memory regeneration as described above, the time data for the position is stored, then the playback is stopped and the key input standby state is switched. There is a disadvantage in that memory regeneration can be executed by storing the memory position data for the point.

Accordingly, the present invention has been made to solve such a drawback in the prior art, and an object of the present invention is to store time data for various desired various positions for a given disc which executes playback, and then store and store at the time of memory playback. SUMMARY OF THE INVENTION An object of the present invention is to provide a storage / playback method of an optical disc player, so that desired time data can be selected and reproduced from time data.

According to a preferred embodiment of the present invention for achieving this object, time data for desired positions are respectively stored while reproducing a predetermined disc, and then time data for a desired position among the stored time data. In the method of storing and reproducing an optical disc player for replaying from that position, (a) when a predetermined disc is loaded, read and store TOC (table of contents) data for the disc and wait for key input. (B) executing playback when the playback key signal is input; and (c) storing time data for positions at which the storage stop key signal for storage playback is input during playback. And (d) If the stop key signal is input during the playback, the time data of the stop key signal input position is stored and played. Stopping playback; (e) if a continuous playback key signal for executing playback from the playback stopped position is input again after the playback stops; Displaying the stored and stored time data at step (c) when a memory reproducing key signal is input; and (i) storing a time data of one of the time data for the storage position displayed at (bar). And if the position data selection key signal is input, reproducing from the position.

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

Fig. 2 is a detailed flowchart of the memory reproducing method of the optical disc player according to the 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 an RF signal amplified and servo signal processor 20 to read the RF signal.

In addition, the motor and the motor driving unit 30 drive a built-in spindle motor (not shown) to rotate the disk and drive the actuator unit 10 so that the pickup unit 10 performs optical pickup to record data recorded on the disk. Read and output it as an RF signal. The RF signal amplification and servo signal processing unit 20 amplifies an RF signal provided from the pickup and actuator unit 10 and provides it to the digital signal processing unit 60, and provides a servo control signal according to the signal to a motor and a motor driving unit ( 30) to provide focus servo and tracking servo.

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.

The key input section 40 is for providing a function key signal for executing a predetermined function. The key input section 40 of the optical disc player for implementing the present invention is a storage position data selection key in addition to the general function keys. (Not shown) and continuous playback keys (not shown).

In addition, the microcomputer 50 generates control signals corresponding to the function key signals input from the key input unit 40 to the respective constituent members so that the optical disk player executes the function input from the key input unit 40, and the disk In the initial stage of loading, TOC (table of contents) data is read out from the lead-in area of the disc and stored in the internal memory (not shown).

On the other hand, according to the present invention, when the playback key signal is input from the key input unit 40 while the microcomputer 50 reads the TOC data from the loaded disk and stores it in the built-in memory, the microcomputer 50 controls. A signal is generated to perform playback as described above.

During the reproducing, when the memory stop key signal for storing the stop position at which the reproducing is executed is input from the key input unit 40, the microcomputer 50 refers to and stores the Q data provided from the digital signal processing unit 60. The time data at the position where the stop key signal is input is stored at a predetermined address in the internal memory, and the playback is continued. After that, when the memory stop key signal is input again, the time data for the position at which the memory stop key signal is inputted. To a different address in memory. That is, time data for positions according to the storage stop key signal inputted until the reproduction stop key signal is input and the reproduction is stopped are addressed and stored in the memory, respectively.

In addition, when the reproduction stop key signal is input from the key input unit 40 during the above-described process, the microcomputer 50 stores the time data for the position where the stop key signal is input, at another address of the memory. At the same time, playback is stopped.

On the other hand, after that, when the stop key signal is input from the key input unit 40 and the continuous play key signal for reproducing is restarted from the position at which playback stops, the microcomputer 50 stores the time data at the pre-stored stop position. By generating a control signal to the motor and the motor drive unit 30 with reference to to transfer the pickup and the actuator unit 10 to the position where regeneration is stopped, and to perform regeneration from that position.

On the other hand, when the memory playback key signal is input from the key input unit 40 after playback is stopped, the microcomputer 50 provides the video signal processing unit 90 with time data and control signals for the storage positions stored in the internal memory. In addition, the video signal processor 90 processes the time data on the storage positions provided under the control of the microcomputer 50 to the screen 110 by processing the on-screen display (OSD), and the screen 110 displays the display 110. do.

Thereafter, when a selection key signal for selecting one of the time data for the storage location displayed on the screen 110 by the user from the key input unit 40 is input, the microcomputer 50 returns the time data for the selected storage location. Read and reference to generate a control signal to the motor and motor drive unit 30, the motor and motor drive unit 30 transfers the pickup and actuator unit 10 to the selected storage position in accordance with the control signal of the microcomputer 50 The pick-up and actuator section 10 executes playback from that position.

2 is a detailed flowchart of a storage / playback method of an optical disk player according to a preferred embodiment of the present invention.

When the disc is loaded from the disc tray in step S10, in step S12, the TOC data recorded in the lead-in area of the loaded disc is read and stored.

Subsequently, in step S14, reproduction is performed when a reproduction key signal is input from the key input unit 40.

If playback is performed in step S14, it is determined in step S16 whether a memory stop key signal is input. If in step S16 a memory stop key signal is input, the process proceeds to step S18, and if not, step S20. Proceed to).

On the other hand, if the memory stop key signal is input in step S16 and proceeds to step S18, in step S18, the microcomputer 50 refers to the Q stop data provided from the digital signal processing unit 90 and refers to the memory stop key signal. Stores the time data of the entered position and returns to step S14.

On the other hand, if the storage stop key signal is not input in step S16 and proceeds to step S20, in step S20 it is determined whether a playback stop key signal for stopping playback is input, and in step S20 If the stop key signal is inputted, the flow advances to step S22, and if not, the flow returns to step S16.

When the process proceeds from step S20 to step S22, in step S22, the microcomputer 50 stores the time data at the position where the reproduction stop key signal is input with reference to the Q data, and at the same time in step S24 Stop playback.

Thereafter, in step S26, it is determined whether or not the continuous playback key signal for executing playback again from the playback stop position is input. At this time, if the continuous playback key signal is input, the process proceeds to step S28 and playback in step S24. Playback is resumed from the stopped position, and if it is not input, the flow advances to step S30 to determine whether a memory playback key signal for executing playback at the memory stored position is entered in steps S16 to S18.

If the memory reproduction key signal is not input in step S30, the flow returns to step S26, and if inputted, the flow advances to step S32, and in step S32, the memory is stored in steps S16 to S18. The time data for the stored memory location is displayed on the screen 110.

Thereafter, in step S34, it is determined whether a key signal for selecting time data for one of the storage data for the storage location displayed in step S32 is input, in which the storage location is entered in step S34. If a key signal for selecting time data for &lt; RTI ID = 0.0 &gt; is &lt; / RTI &gt; is provided, the flow advances to step S36 to execute playback from the storage position selected in step S36 and the flow ends.

As described above, the present invention compensates for the disadvantage of storing the time data for only one desired position during memory playback and later performing playback from that position, thereby storing the time data for all the memory positions desired by the user. Thereafter, there is an advantage in that a desired predetermined storage position can be selected and playback can be performed from that position.

Claims (1)

An optical disc player for storing playback of time data for desired positions while performing playback on a predetermined disc, and then selecting time data for a desired position among the stored time data and executing playback from that position again. In the memory reproducing method, (A) reading and storing TOC (table of contents) data for a disc when the disc is loaded, and waiting for key input; (B) executing reproduction when a reproduction key signal is input, and (c) storing time data for positions at which a storage stop key signal for storage reproduction is input during reproduction; (D) if a stop key signal is input during the playback, storing time data at the stop key signal input position and stopping playback; (E) executing playback again from the playback stop position if a continuous playback key signal for executing playback again from the playback stop position is input after playback stops; (F) displaying the stored time data stored in step (c) if a memory playback key signal is input after playback stops; (G) storing the optical disc player, starting from the position when the storage position data selection key signal for selecting one of the temporal data for the storage position displayed in (f) is input; How to play.