KR19980069631A - Memory playback method of optical disc player - Google Patents

Abstract

The present invention relates to a memory reproducing method of an optical disc player, comprising the steps of: (a) loading a disc, reading and storing TOC (table of contents) data when a reproducing key signal is input, and sequentially executing the reproducing; (B) storing and setting the time data for the playback position to which the positioning key signal is input as the designated position data, and (c) when the memory stop key signal is inputted, Storing and setting the time data for the playback position as storage stop position data, and stopping playback; and (d) referring to the respective designated position data stored according to the positioning key signal when the storage reproduction key signal is input. Performing playback sequentially for a predetermined time at the designated position of e) and (e) when the playback at each designated position is completed, the storage stop position. And performing the memory playback from the memory stopped position with reference to the data, and performing the memory playback immediately at the position where the memory is stored, without performing the playback at the memory stop position immediately. By executing playback for each predetermined time and then starting playback from the memory stop position, there is an effect that the user can easily understand the contents before the memory stop and can view the contents afterwards.

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 perform memory regeneration from a memory stop position after sequentially reproducing for a predetermined time at each position specified before memory stop during memory reproducing. A method of reproducing and storing an optical disc player.

With the development of audio and video media, optical disc players have been developed that record video and audio data on a semi-permanent optical disc and reproduce the recorded data in a non-contact manner using light.

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 signals with sound quality, generate almost no noise due to irregular playback and modulation, very low distortion, no ghost, random access, etc. 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 storage / playback function that allows playback to be continued continuously from a position where playback is stopped after stopping playback at a desired position during playback.

In other words, the memory reproducing function of the optical disc player, when the user inputs the memory stop key during the reproducing operation, stops the reproducing and then stores and stores the time information at the position where the reproducing stops, and then the user memorizes again. When the playback key signal is input, playback is performed from that location by referring to the time information of the previously stored storage stop position.

However, in the conventional memory regeneration function, when the memory regeneration is executed after a predetermined time after the memory stop at the desired point during the reproducing, the user forgets the contents previously reproduced before the memory retrieval and reproduces the previously. There was a problem that the contents played back may not be understood continuously according to the memory played back.

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 reproduce the contents which were played before the memory stop for a predetermined time, and then perform the playback from the memory stop position at the time of memory playback. The present invention provides a method of reproducing and storing an optical disc player in which a user can continuously understand contents recorded on a disc.

According to a preferred embodiment of the present invention for achieving this object, the storage of an optical disc player for continuously executing playback from the stop position after the memory stops at a desired predetermined position during playback. In the reproducing method, (a) when a reproducing key signal is input, loading a disc, reading and storing TOC (table of contents) data, and sequentially reproducing the reference with reference thereto; Storing and setting the time data for the inputted playback position as designated position data, respectively; and (c) if the memory stop key signal is input, storing and stopping the time data for the playback position at the time when the memory stop key signal is input. Storing and setting as position data and stopping playback; and (d) in response to the position designation key signal when a memory reproduction key signal is input. Performing reproduction sequentially for a predetermined time at each designated position with reference to the respective designated position data stored and (e) referring to the storage stop position data when the reproduction at each designated position is completed; And executing the memory playback from the position where the memory is stopped.

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

Fig. 2 is a detailed flowchart showing a memory reproducing method of an optical 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 performs an optical pickup from a disc loaded in a disc tray (not shown), and outputs the RF signal read out to the RF signal amplification and servo signal processing unit 20 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.

The key input unit 40 of the optical disc player for executing the present invention as described above is to provide a function key signal for executing a predetermined function, and the key input unit of the optical disc player for executing the present invention. 40 further includes a positioning key (not shown) in addition to a general function key, a memory stop key (not shown) for memory regeneration, and a memory regeneration key (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 reproduction key signal is input from the key input unit 40, the microcomputer 50 generates a control signal to the motor and the motor driver 30, accordingly, the motor and the motor driver 30 is picked up and The actuator unit 10 is driven to load the disc mounted in the disc tray.

When the disc is loaded in the disc tray through this process, the pick-up and actuator unit 10 is driven under the control of the microcomputer 50 to read TOC data recorded in the lead-in area of the disc, and then to the RF signal amplifying unit 20. The signal is amplified by the RF signal amplification unit 20 and processed by the digital signal processor 60, and then provided to the microcomputer 50, and the microcomputer 50 stores the TOC data in the internal memory. do.

In addition, when the microcomputer 50 finishes storing TOC data in the internal memory, the microcomputer 50 passes through the motor and motor driver 30, the RF signal amplification and servo signal processing unit 20, the digital signal processing unit 60, the MPEG decoder 70, and the like. A control signal is generated to perform playback.

On the other hand, according to the present invention, if the playback is performed through the above-described process, the microcomputer 50 determines whether the positioning key signal is input from the key input unit 40, the positioning key signal from the key input unit 40 When is input, the microcomputer 50 stores and sets, in the internal memory, the time data of the playback positions to which the positioning key signal is input, with reference to the Q data provided from the digital signal processing unit 60.

In addition, when the memory stop key signal for memory reproduction is input from the key input unit 40 while this process is being performed, the microcomputer 50 refers to the Q data provided from the digital signal processing unit 60 to store the memory stop key signal. The time data at the input point is stored and set in the internal memory as storage stop data, and at the same time, a control signal is generated by the motor and the motor drive unit 30 to stop playback at the point where the storage stop key signal is input.

After that, when the memory regeneration key signal is input from the key input unit 40, the microcomputer 50 generates control signals to the motor and the motor driving unit 30 by referring to the positioning data set in the internal memory as described above. The feed motors constituting the motor and the motor drive unit 30 are driven to transfer the pick-up unit 10 to each of the positioned points, and the regeneration is sequentially performed for a predetermined time, for example, 1 to 2 minutes. . In other words, the replay unit 10 is transported to the first positioned point to perform regeneration for 1 to 2 minutes, and then the regeneration unit 10 is transferred to the next positioned point to regenerate for 1 to 2 minutes. This process is performed up to the last positioned point.

On the other hand, when the reproduction at this position point is completed, the microcomputer 50 generates control signals to the motor and the motor driver 30 with reference to the memory stop data, thereby forming a feed constituting the motor and the motor driver 30. The motor is driven to transfer the pick-up section 10 to the point where the memory has been stopped, and then memory regeneration is started from that point.

Fig. 2 is a detailed flowchart showing a memory reproducing method of an optical disc player according to a preferred embodiment of the present invention.

When the play key signal is input in step S10, the disc loaded in the disc tray is loaded. In step S20, the TOC data of the loaded disc is read and stored.

When storage of the TOC data is completed in step S20, playback is sequentially performed from the first track of the loaded disc in step S25.

When playback is performed in step S25, in step S30, the microcomputer 50 determines whether a positioning key signal is input. When the positioning key signal is input in step S30, the process proceeds to step S40, and the microcomputer 50 stores the time data at the point where the positioning key signal is input in the internal memory as the positioning data and moves to step S30. Return and perform the flow.

On the other hand, if the positioning key signal is not input in step S30, the flow advances to step S50. In step S50, it is determined whether the storage stop key signal is input. If the memory stop key signal is input in step S50, the flow advances to step S60. If not, the flow returns to step S30 to resume the flow.

When the process proceeds from step S50 to step S60, in step S60, the time data for the playback position to which the storage stop key signal is input is stored and set as the storage stop data, and then the playback is stopped in step S70. .

Thereafter, in step S80, it is determined whether the memory reproduction key signal is input. If the memory reproduction key signal is input in step S80, the flow advances to step S90, and in step S90, the respective inputted points are stored in accordance with the positioning data set and stored in steps S30 and S40. Predetermined time. For example, playback is sequentially performed for 1 to 2 minutes.

Then, in step S100, it is determined whether the reproduction for the predetermined time for the last designated position is completed. At this time, if the reproduction for the last designated position is not completed, the flow is fed back, and if it is completed, in step S110. Proceeding, the pickup section 10 is jumped to the memory stopped position with reference to the memory stop data stored in step S60.

Further, in step S120, it is determined whether the pickup section S120 has reached the storage stop position. If the storage stop position has been reached, the flow advances to step S130 to execute playback at the memory stop position and the flow ends.

As described above, according to the present invention, the memory stop position is executed after the reproduction is performed for a predetermined time at each of the designated positions before the pre-stored storage stop, without executing the reproduction at the memory stop position immediately in executing the memory reproduction. By reproducing from the above, the user can easily understand the contents before the memory stop and watch the contents afterwards.

Claims (1)

In the memory reproducing method of the optical disc player, after the memory stops at a desired predetermined position during the reproducing, and subsequently, the reproducing is continuously performed from the memory stopped position. (A) loading a disc, reading and storing a table of contents (TOC) data when a reproduction key signal is input, and sequentially executing reproduction with reference to this; (B) storing and setting the time data for the playback position to which the positioning key signal is input as the designated position data respectively; (C) when the storage stop key signal is input, storing and setting the time data for the playback position at the time when the storage stop key signal is input as the storage stop position data, and stopping playback; (D) executing a reproduction sequentially for a predetermined time at each designated position with reference to the respective designated position data stored and stored in accordance with the position designated key signal when a memory reproduction key signal is input; And (e) performing a memory playback from the memory stop position by referring to the memory stop position data when the reproduction at each designated position is completed.