KR19990050080A - Repeat playback device of optical disc player - Google Patents

Abstract

The present invention relates to a repetitive reproduction method of an optical disc player for reproducing a program recorded in a predetermined section of an optical disc, comprising: a first step of reproducing a program recorded on the optical disc; A second step of storing a program reproduced from a time point at which the repeat key signal is applied when a repeat key signal is applied from the outside; If the repetition key signal is applied again in the second step, a third step of reproducing the program stored in the optical disc and repeatedly playing the program stored in the second step is repeated. By providing a method, it is possible to shorten the time required for reproducing the repetition section after the reproduction of the repetition section, thereby improving the usability of the optical disc player.

Description

Repeat playback device of optical disc player

The present invention relates to repetitive playback of an optical disc player. More particularly, the present invention relates to an optical disc player configured to perform repetitive playback using data stored in a memory after storing data set in the repetition section. A repetitive playback method.

In general, an optical disc player is a device that reads data from an optical disc on which several gigabytes (GB) of video and audio data are recorded, for example, by MPEG-2 moving picture compression technology. Compared to the playback device, it provides high quality and high sound quality, and provides useful functions such as random access, and is a widely used electronic device, including a compact disk player (CDP) and a laser disk player (LDP: laser disk). player and compact disk graphic player (CDGP), video compact disk player (VCDP), and digital video disk (DVD).

On the other hand, the optical disc player provides a repeat play function for the convenience of the user, and is a function for repeatedly playing the entire section or the predetermined section of the optical disc set by the user. It can be played back many times, or it is useful for a user, such as repeatedly playing a desired screen or music for hobby use.

Such a repeat play function of the optical disc player will be briefly described with reference to FIG. 1 as follows.

1 is a block diagram showing hardware for performing repetitive reproduction of a general thin film type optical path control apparatus.

First, when an optical disc is loaded into the optical disc player 300, under the control of the system controller 200, the optical disc player 300 reads out TOC (Table of Contents) information of the optical disc, and provides the optical disc player 300 to the system controller 200. The system controller 200 stores the TOC information provided from the optical disc player 300 in an internal memory (not shown) or the storage 400 provided in the system controller 200 itself.

Subsequently, when a playback key signal is applied to the system controller 200 by a user's key operation, the system controller 200 controls the optical disk player 300 to drive the optical disk player 300 in the playback mode, and the optical disk player The control unit 300 reads a program recorded on the optical disc under the control of the system control unit 200, detects a track position on the optical disc currently being reproduced, and provides the detected position to the system control unit 200.

If the first repeat play key signal is applied by a user's key operation while playing a program recorded on the optical disk, the system controller 200 sets the track position at the time when the first repeat play key signal is applied to the start point (a) of the repeat section. ) Is stored in the storage unit 400, and once the repetitive reproducing key signal is applied, the system controller 200 stores the track position at the time when the second reproducing key signal is applied as the end point (b) of the repetition section. Save to 400.

In addition, when the second repeat play key signal is applied, the system controller 200 controls the optical disc player 300 to switch the optical disc player 300 from the play mode to the repeat play mode.

That is, the system controller 200 refers to the information about the start point (a) of the repeating section stored in the storage unit 400, and the optical disc player 300 reads the program recorded on the optical disk from the start point (a) of the repeating section. To control.

While the optical disc player 300 reads the program recorded on the optical disc from the start point a of the repeating section under the control of the system control unit 200, the system control unit 200 repeats the current playback position of the optical disc player 300. It is determined whether the end point b of the section is reached.

When the playback position of the optical disc player 300 reaches the end point (b) of the repeating section while the above process is in progress, the system controller 200 plays the program recorded in the optical disc player 300 from the start point (a) of the repeating section. The optical disc player 300 is controlled.

Thereafter, the optical disc player 300 repeats the above-described process by the control of the system controller 200 until the repetition release key signal is applied from the key input unit 100.

However, in the above-described conventional method, when the optical pickup unit (not shown) for reading the program recorded on the optical disc reaches the end point b of the repetition section, it moves to the start point a of the repetition section again and moves. Since the focus servo and the tracking servo have to be performed again at one point, the time required between the repeating section and the repeating section is large, causing a problem of boredom for the viewer.

Accordingly, the present invention has been made in view of the above-described problems, and an object of the present invention is to store a program stored in a repetition section selected by a user in a memory, and to perform repetitive playback using the memory. It is to provide a reproduction method.

In order to achieve the above object, the present invention provides a repetitive reproduction method of an optical disc player for reproducing a program recorded in a predetermined section of an optical disc, comprising: a first step of reproducing a program recorded on the optical disc; A second step of storing a program reproduced from a time point at which the repeat key signal is applied when a repeat key signal is applied from the outside; If the repetition key signal is applied again in the second step, a third step of reproducing the program stored in the optical disc and repeatedly playing the program stored in the second step is repeated. Provide a method.

1 is a block diagram showing a repeating playback apparatus of a typical optical disc player;

2 is a block diagram of hardware for implementing a repetitive playback method of an optical disc player according to the present invention;

3 is a detailed flowchart showing a method of repeating playback of an optical disc player according to the present invention;

<Description of the symbols for the main parts of the drawings>

100: key input unit 200: system control unit

300: optical disc player 320: program reader

340: decoding unit 360: display unit

400: storage

The above and other objects and advantages of the present invention will become apparent from the following description with reference to the attached FIGS. 2 and 3. At this time, in order to help the understanding of the present invention, the same reference numerals are used for the same members as those of FIG. 1.

Hereinafter, a repeating playback method of an optical disc player according to the present invention will be described with reference to FIGS. 2 and 3.

2 is a block diagram showing hardware for implementing a repetitive reproduction method of an optical disc player according to the present invention, and FIG. 3 is a detailed flowchart illustrating a repetitive reproduction method of an optical disc player according to the present invention.

Referring to FIG. 2, the hardware for implementing a repetitive playback method of an optical disc player according to the present invention includes a key input unit 100, a system control unit 200, an optical disc player 300, and a storage unit 400. The function of each structural member is as follows.

First, the key input unit 100 includes a plurality of keys including a play key and a repeat play key, and generates and provides a key signal corresponding to a user's key operation to the system controller 200.

The system control unit 200 controls the entire system in response to signals applied from the key input unit 100 and the respective constituent members provided in the repeating playback device. In particular, the system control unit 200 repeats a program recorded on the optical disc from the key input unit 100 during playback. When the key signal is applied, the storage unit 400 stores the reproduction data reproduced by the optical disc player 300 from the time when the repetitive key signal is applied. In addition, when the second repetitive playback key signal is applied from the key input unit 100, the optical disc player 300 stops the operation of reproducing the program recorded on the optical disc, reads the program recorded in the storage unit 400, and reads out the program. The optical disc player 300 is controlled to repeatedly display the programmed program.

The optical disc player 300 includes a program reading unit 320, a decoding unit 340, and a display unit 360, and reproduces a program recorded on an optical disc under the control of the system control unit 200, or stores the storage unit 400. Plays back the playback data stored in.

At this time, the program reading unit 320 reads a program recorded on the optical disc as a predetermined signal under the control of the system control unit 200, performs synchronization signal detection and error correction from the read signal, and then corrects the error. The reproduced data is provided to the decoder 340 or the storage 400.

The decoder 400 decodes the reproduction data provided by the program reader 400 into original data before encoding, and separates the decompressed data into an audio signal and a video signal and provides the same to the display unit 360.

The display unit 360 includes a monitor (not shown) and a speaker (not shown). The display unit 360 outputs an image signal provided from the decoder 400 through a monitor, while an audio signal is output through the speaker. Output

The storage unit 400 stores reproduction data reproduced from the repetition section of the optical disc set by the user.

Referring to FIG. 3, the process of implementing the repetitive playback method of the optical disc player according to the present invention in hardware having the above-described structural members will be described in detail as follows.

First, when a predetermined optical disc is mounted on the optical disc player 300, the system controller 200 controls the optical disc player 300 to load the mounted optical disc, and the optical disc player 300 controls the system control unit 200. The optical disc is loaded under the control of S 10.

When the loading of the optical disc is completed in step S 10, the system controller 200 controls the optical disc player 300 to read the Table of Contents (TOC) information of the mounted optical disc, and the optical disc player 300 controls the system control unit 200. ), The TOC information is read out from the TOC area allocated to the load-in area of the optical disc and provided to the system controller 200. At this time, the TOC information is information stored in the lead-in area of the optical disc at the time of manufacture of the optical disc, and includes the track number for each track of the optical disc, position information about the track start point and the track end point.

The system controller 200 stores the TOC information provided from the optical disc player 300 in an internal memory (not shown) or the storage 400 provided in the system controller 200 itself (S 20).

Subsequently, when the user manipulates the play key provided in the key input unit 100, the key input unit 100 generates a key signal in response to the user's key operation, and then provides the generated play key signal to the system controller 200. (S 30)

The system control unit 200 receiving the play key signal from the key input unit 100 controls the optical disc player 300 so that the optical disc player 300 performs a playback operation, and the optical disc player 300 controls the system of the system control unit 200. By control, the program recorded on the optical disc is read out. In addition, the optical disc player 300 detects a track position on the optical disc currently being reproduced, and provides the system controller 200 with information about the detected current reproduction position (S30).

That is, the program reading unit 320 reads out a program recorded on the optical disc as a predetermined signal, detects a synchronous signal from the read signal, corrects an error of the read signal, and reproduces the error corrected signal, that is, reproduces the signal. The data is provided to the decoder 340. In addition, the position of the current optical disk based on the synchronization signal will be provided to the system controller 200.

The decoder 340 decodes the reproduction data provided from the program reader 340 into the image data before encoding, and separates the decoded signal into a video signal and an audio signal and provides the same to the display unit 360.

The display unit 360 displays an image signal provided by the decoder 340 through a monitor (not shown), and outputs an audio signal through a speaker (not shown) (S 40).

When the program recorded on the optical disc is reproduced through the monitor and the speaker by the above-described step S40, when the program desired to be repeatedly played is played, the user is provided in the key input unit 100 to repeatedly play the desired program. The repeated reproducing key is operated, and the key input unit 100 generates a repetitive reproducing key signal corresponding to the user's key operation, and applies the generated reproducing reproducing key signal to the system controller 200 (S 50).

When the repetitive playback key signal is applied from the key input unit 100 in step S 50, the system controller 200 stores the playback data provided from the program reader 320 of the optical disc player 300 to the decoder 340. Save to 400. At this time, since the reproduction data is also provided from the program reading unit 320 to the decoding unit 340, the reproduction operation is performed by the same process as the operation S40 (S60).

By proceeding to step S60, the user manipulates the repeat play key provided in the key input unit 100 when the desired program is completed while watching the program played through the display unit 360 of the optical disc player 300. In addition, the key input unit 100 generates a repetitive reproducing key signal corresponding to a user's key operation, and provides the generated repetitive reproducing key signal to the system controller 200 (S 70).

In operation S 70, the system controller 200 receiving the repetitive playback key signal from the key input unit 100 refers to information on the current track provided by the optical disc player 300, and at the time when the repetitive playback key signal is applied, Store information about the track position P being played back in the storage unit 400 (S80), and switch from the play mode for sequentially playing the programs recorded on the optical disc to the repeat play mode for repeating a predetermined section; The optical disc player 300 is controlled.

That is, under the control of the system control unit 200, the program reading unit 320 stops reading the program recorded on the optical disc, and the reproduction unit 340 receives the reproduction data stored in the storage unit 400. At this time, the reproduction data is reproduction data applied from the program reading unit 320 to the decoding unit 340 from the time of applying the first repetition key signal until the second repetition key signal is applied. will be.

The decoding unit 340 decodes the reproduction data applied from the storage unit 340 into the image data before encoding, and then decodes the decoded data into an audio signal and an image signal and provides the decoded data to the display unit 360. The unit 360 outputs the video signal and the audio signal provided by the decoder 340 through the monitor and the speaker.

Thereafter, when the reproduction of the reproduction data stored in the storage unit 400 is completed, the reproduction unit 330 applies the decoding unit 340 from the beginning of the stored reproduction data, and the decoding unit 340 and the display unit 360 perform the above-described operation. By repeating, the program set by the user is repeatedly played. (S 90)

In operation S 90, when the user manipulates the repetition release key provided in the key input unit 100 to stop repetitive playback while watching a program repeatedly output from the display unit 360, the key input unit 100 is operated. Generates a repetition release key signal corresponding to the user's key operation, and applies the generated repetition release key signal to the system controller 200. (S100)

In step S 100, the system controller 200 receiving the repetition release key signal from the key input unit 100 extracts information on the track position stored in the storage unit 400 in step S 80, and extracts the track position. With reference to the information, the optical disc player 300 is controlled to read out and reproduce the program recorded on the optical disc from the track position P at the time when normal playback is stopped and repeat playback starts.

Under the control of the system controller 200, the optical disc player 300 performs normal playback in the same operation as step S40 from the track position P at the time when normal playback is stopped and repeated playback starts (S 110).

According to the present invention described above, after the reproduction of the repeating section is finished, it is possible to shorten the time required to play the repeating section again, thereby improving the usability of the optical disc player.

Claims (2)

A repetitive reproduction method of an optical disc player for reproducing a program recorded in a predetermined section of an optical disc, comprising: a first step of reproducing a program recorded on the optical disc; A second step of storing a program reproduced from a time point at which the repeat key signal is applied when a repeat key signal is applied from the outside; If the repetition key signal is applied again in the second step, a third step of reproducing the program stored in the optical disc and repeatedly playing the program stored in the second step is repeated. Way. The repetitive reproduction method according to claim 1, wherein the second step stores a coded program.