KR19990012009A - How to introduce the storage location of the optical disc player - Google Patents

Abstract

According to the present invention, after storing the data stored on the optical disc from the key input unit during playback, the position data of the storage position where the storage key signal is generated is stored in the storage unit, and then any one of a predetermined number of storage positions stored in the storage unit is selected. And storing and reproducing the optical disk player in the monitor from the selected position. When the storage key signal is generated from the key input unit during the reproducing operation of the optical disk player, the storage unit stores the position data at the point where the storage key signal is generated. Storing in a first step; A second step of retrieving whether or not position data for a memory location is stored in the storage unit when an introduction key signal is generated from the key input unit in the first step; And a third step of sequentially reproducing for a predetermined time from the location data of each memory location stored in the storage unit when the location data of the storage location is retrieved in the second step. By providing a method of introducing a storage location of the optical disc player, the contents of all stored storage locations can be quickly and easily recognized by the user, thereby making it easy to select the storage location of the user.

Description

How to introduce the storage location of the optical disc player

The present invention relates to a method of reproducing an optical disc player, in particular, by sequentially reproducing a plurality of storage positions set by a user during a reproducing process for a predetermined time. A storage position introduction method of an optical disc player which can inform a user.

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, the above-described optical disc player is provided with a storage function for storing a predetermined position desired by the user during the playback, and subsequently executing the playback at the stored position.

By the way, in the case where there is only one stored position, playback can be performed from the stored position. However, when there are a plurality of stored positions, the contents according to the respective positions cannot be confirmed, and thus the desired storage position can be determined. In order to execute, there was the hassle of having to execute the memory locations manually.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to sequentially display and display a plurality of storage positions set by a user during playback of an optical disc for a predetermined time. An object of the present invention is to provide a method of introducing a storage location of an optical disc player which can introduce the contents of the storage location.

In order to achieve the above object, in the present invention, after storing the data stored on the optical disk from the key input unit during the reproduction of the position data for the storage position where the storage key signal is generated, In the memory reproducing method of the optical disc player, which can select any one of the memory positions and play back to the monitor from the selected position, when the memory key signal is generated from the key input unit during the reproducing operation of the optical disc player, the memory key signal is generated. A first step of storing position data of the generated point in a storage unit; A second step of retrieving whether or not position data for a memory location is stored in the storage unit when an introduction key signal is generated from the key input unit in the first step; And a third step of sequentially reproducing for a predetermined time from the location data of each memory location stored in the storage unit when the location data of the storage location is retrieved in the second step. Provides a method of introducing a storage location of an optical disc player.

1 is a system configuration diagram of a general optical disc player for performing a method of introducing a storage position of an optical disc player according to the present invention;

2 is a detailed flowchart of a storage position introduction method of an optical disc player according to a preferred embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

110: optical pickup unit 120: RF signal amplification unit

130: digital signal processing unit 140: MPEG decoder

150: video signal processor 160: monitor

170: pickup transfer unit 180: servo unit

190: system control unit 200: storage unit

210: audio signal processing unit 220: speaker

230: key input unit 240: OSD processing unit

D: optical disc

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

1 is a system configuration diagram of a general optical disc player for executing a method of introducing a storage position of an optical disc player according to the present invention, which includes an optical pickup unit 110, an RF (radio frequency) signal amplifier unit 120, and a digital signal processor ( 130, the MPEG decoder 140, the video signal processor 150, the monitor 160, the pickup transfer unit 170, the servo unit 180, the system controller 190, the storage 200, and the audio signal processor 210. ), A speaker 220, and a key input unit 230 is configured.

The optical pickup unit 110 irradiates a predetermined laser beam to the signal surface of the disc by servo control of the servo unit 180, reads out data stored in the disc as an RF signal, and provides the RF signal amplification unit 120. .

The RF signal amplifier 120 amplifies the RF signal provided from the optical pickup unit 110 and provides it to the digital signal processor 130.

The digital signal processor 130 digitally processes the amplified RF signal, performs error detection and error correction, and then outputs the signal to the MPEG decoder 140. Also, the digital signal processor 130 outputs the time on the disc currently being reproduced during optical disc playback. Q data to the system control unit 190 is provided.

The MPEG decoder 140 decodes an error corrected digital video signal and an audio signal provided from the digital signal processor 130 based on the MPEG compression format and outputs the decoded video signal to the video signal processor 150 and the audio signal processor 210. .

The video signal processor 150 processes the decoded video signal provided from the MPEG decoder 140 and outputs it to the monitor 160, and also outputs the OSD data provided from the OSD processor 240 to the OSD screen. 160).

The pickup transfer unit 170 drives the optical pickup unit 110 based on the control signals of the servo unit 180 and the system controller 190.

The servo unit 180 generates a servo control signal corresponding to the focusing error signal and the tracking error signal provided by the optical pickup unit 110, and provides the generated servo control signal to the pickup transfer unit 170, thereby providing focusing servo and tracking. Let the servo be done.

The system controller 190 controls the overall operation of the optical disc player by applying signals generated from the key input unit 230 and the respective constituent members of the optical disc player.

The storage unit 200 stores position data for each memory location and preset character data for OSD output.

The audio signal processor 210 processes the decoded audio signal provided from the MPEG decoder 140 and outputs the same to the speaker 220. Accordingly, the speaker 220 transmits voice.

The key input unit 230 includes a plurality of keys such as a play key, a memory key, and an introduction key, and generates a key signal according to a user's key operation.

The OSD processor 240 OSD-processes predetermined text data extracted from the storage 200 under the control of the system controller 190 and provides the OSD to the video signal processor 150.

2 is a flowchart showing a method of introducing a storage position of an optical disc player in the above-described general optical disc player system, the detailed process of which is as follows.

First, when the optical disc D is mounted in the optical disc player system by the user, the system control unit 190 controls to load the disc D (S 1), and when the disc is loaded, the system control unit 190 The pickup transfer unit 170 and the servo unit 180 are controlled to read TOC information (Table Of Contents) allocated to the lead-in area of the disc.

Under the control of the system controller 190, the pickup transfer unit 170 is driven to jump the optical pickup unit 110 to the lead-in area of the optical disc, and the servo unit 180 performs a focusing servo and a tracking servo. The optical pickup unit 110 may perform accurate TOC reading.

Thereafter, when the TOC information is read by the optical pickup unit 110, the read TOC information is stored in the storage unit 200 by the system controller 190 (S 2).

In step S 2, when a reproduction key signal is generated from the key input unit 230 by a user's key manipulation, the generated reproduction key signal is applied to the system controller 190, and thus, the system controller 190 is an optical pickup unit. In operation 110, the pickup transfer unit 170 and the servo unit 180 are controlled to perform the regeneration operation.

Under the control of the system controller 190, the pickup transfer unit 170 transfers the optical pickup unit 110 to the program area of the signal surface of the disc, and when the tracking servo and the focusing servo are performed in the servo unit 180, The optical pickup unit 110 reads the data recorded in the program area as an RF signal, and then provides the read RF signal to the RF signal amplifier 120 as an amplified RF signal and to the digital signal processor 130. do.

Thereafter, the digital signal processor 130 performs digital signal processing on the RF signal amplified by the RF signal amplifier 120, performs an error and error correction, and then provides the digital video signal and the digital audio signal to the MPEG decoder 140. do.

The MPEG decoder 140 decodes an error corrected digital video signal and an audio signal provided from the digital signal processor 130 based on the MPEG compression format and outputs the decoded video signal to the video signal processor 150 and the audio signal processor 210. .

The video signal processor 150 processes the decoded video signal provided from the MPEG decoder 140 and outputs the signal to the monitor 160. The audio signal processor 210 decodes the audio signal provided from the MPEG decoder 140. Process the output to the speaker 220. As a result, an image is displayed on the monitor 160, and audio is transmitted from the speaker 220 (S 4).

If the storage key signal is generated from the key input unit 230 by the user's operation during step S4 (S5), the key signal generated at the key input unit 230 is applied to the system controller 190, The system control unit 190 applying the storage key signal refers to the Q data provided from the digital signal processing unit 130 and stores the position data at the point where the storage key signal is input in the storage unit 200 (S6). . At this time, since the Q data represents the time data of the position currently being reproduced, the position data of the point where the storage key signal is input will also be stored in the storage unit 200 as time data.

After step S6, steps S4 and S5 are repeated. That is, the position data is sequentially stored in the storage unit 200 at the point where the storage key signal is generated by the user's key operation during the playback of the disc.

On the other hand, if a function key signal is generated from the key input unit 230 in step S4 (S8), the system controller 190 applies the key signal generated from the key input unit 230, and corresponds to the applied key signal To control the overall operation of the optical disc player.

In addition, in step S4, when the introduction key signal is generated from the key input unit 230 (S7), the system control unit 190 controls the pickup transfer unit 170 and the servo unit 180 to stop the playback operation, Under the control of the system controller 190, the pickup transfer unit 170 moves to the initial position of the optical pickup unit 110, and the servo unit 180 stops irradiating the laser beam of the optical pickup unit 110. The reproduction operation made in the pickup unit 110 is stopped (S 10).

Simultaneously with step S 10, the system controller 190 searches whether the location data for the storage location is stored in the storage unit 200 (S 11), and stores the result of the search in step S 11 and the storage unit 200. If the position data for the position is not stored, the character data indicating that the memory position is not stored is withdrawn from the storage unit 200, and the OSD processor 240 is controlled to output the extracted character data to the OSD screen. do.

The OSD processor 240 OSD-processes predetermined text data extracted from the storage unit 200 to the video signal processor 150 under the control of the system controller 190, and the video signal processor 150 provides the OSD processor. The OSD data provided at 240 is output to the monitor.

As a result, the monitor 160 outputs predetermined character information indicating that the memory location is not stored on the OSD screen (S 12).

On the other hand, if the location data for the storage location is stored in the storage unit 200 as a result of step S 11, the system control unit 190 searches for each of the retrieved location data M1, M2,... Mn. (S 13)

Thereafter, the system control unit 190 controls the pickup transfer unit 170 and the servo unit 180 to reproduce the position data M1 of the first storage position, and under the control of the system control unit 190, the pickup transfer unit 170 is controlled. ) Moves the optical pickup unit 110 to the M1 point, and the servo unit 180 performs the focusing servo and the tracking servo to read the data at the M1 point (S 14).

In S 14, when the optical pickup unit 110 is located exactly at the M1 point located on the signal surface of the disc (S 15), playback starts in the same manner as in step S 4 described above (S 16), and at the same time, the system control unit ( 190 counts the playback time (C) and compares it with the preset time (T). (S17) At this time, the preset time (T) is set by the user on the OSD screen or by the manufacturer at the time of manufacture of the product. Will be preset.

In step S17, when the playback key signal is generated from the key input unit 230 (S 18), the system controller 190 applies the playback key signal generated by the key input unit 230, and releases the memory location introduction mode. In order to perform normal playback, the entire system of the optical disc player will be controlled to perform the same playback operation as in step S 4 described above, and the optical disc player is controlled by the system control unit 190 by the same process as step S 4 described above. The playback operation will be performed (S 19).

In operation S17, when a time counted by the system controller 190 coincides with a preset time T without generating a reproduction key signal from the key input unit 230 (S20), the system controller 190 ) Controls the entire optical disc player system to stop the playback operation being performed in step S16, and therefore, the playback operation will be stopped in the optical disk player as in step S10. At this time, the system controller 190 will stop the playback operation and reset the time counted in step S17 to 0. (S21)

Thereafter, in step S 13, in order to search for the next memory location M (n + 1) point detected by the storage unit 200 (S 22), the system control unit 190 stores the memory location retrieved from the storage unit 200. The positional data on S2 is searched to determine whether there is a next memory position M2 excluding the memory position M1 reproduced in step S16.

As a result of the determination in S 23, if there is data for the next storage position M (n + 1), the above steps from S 14 to S 23 are repeated, and if there is no data for the next storage position M (n + 1), the introduction is performed. Terminate the function.

On the other hand, in the method of introducing the storage position of the optical disk player according to the present invention described above in the step S1 to step S23, the number of storage positions stored in the storage unit 200 is M1, M2, .... Each data M1. It would be desirable to search M2, ..... Mn in chronological order of the disc. According to this method, each memory position M1. Since M2, ..... Mn are sequentially positioned, the time for moving the optical pickup unit 110 from one memory location to the next memory location will be shortened.

Further, in another embodiment of the storage position introduction method of the optical disc player according to the present invention, when there are a plurality of storage positions (M1, M2, ... Mn), each data M1. It would be desirable to store and search M2, ..., Mn in the order set for the storage location. That is, if the user sets the memory positions in the order of M1, M2, ... Mn, first, the set memory position is M1, then the set memory position is M2 .... and the most recently set memory position is Mn. After storing in the storage unit 200, it will be preferable to search in the reverse order. According to this method, it is possible to display from the memory position which the user most recently set as the memory position, thereby facilitating the user's selection.

As described above, according to the present invention, by sequentially playing for a predetermined number of storage positions set during playback of an optical disc, the contents at all storage positions can be quickly and easily recognized by the user, thereby allowing the user to select a storage position. There is an effect that can be facilitated.

Claims (6)

A memory reproducing method of an optical disc player having a storage unit capable of storing a reproduction position of an optical disc, A first step of storing, at the storage unit, a playback position at the time when the key signal is generated, every time a storage key signal is generated from the outside during the reproduction of the optical disc; A second step of detecting all playback positions stored in the first step when an introduction key signal is generated from the outside while the optical disc is mounted; And a third step of sequentially playing back all the storage positions detected in the second step for a predetermined time. The method of claim 1, wherein the third step, A first step of detecting position data of one or more storage positions stored in the storage; A second step of starting counting simultaneously with reproduction at the first storage location with reference to the position data detected in step 1; A third step of detecting at the storage unit and starting counting at the same time as the storage unit when the time counted in the second step coincides with a preset playback time; In the second process, a general playback key signal is generated from the key input unit, or if the storage unit is detected in the storage unit in the third process, the fourth operation is completed. Memory location introduction method. The method of claim 1, wherein if the position data of the memory location is not stored in the storage unit in the third step, the method includes outputting predetermined text data on the OSD screen to indicate that there is no memory location. Storage position introduction method of optical disc player. The method according to claim 1, wherein the position data for the storage position is time data of a point where a storage key signal is generated from the key input unit. 5. The method according to any one of claims 1 to 4, wherein the sequential reproduction of the storage positions is performed in the order of the reproduction final position from the reproduction initial position of the optical disc. The optical disc player according to any one of claims 1 to 4, wherein the sequential reproduction of the storage positions is performed in order of the storage positions stored first, from the last stored positions stored in the storage unit. Memory location introduction method.