KR19990026827A - How to introduce tracks on an optical disc player - Google Patents

Abstract

The present invention relates to a track introduction method of an optical disc player for introducing a program recorded in each track to an optical disc, comprising: a first step of setting an arbitrary virtual track section by dividing the optical disc evenly in predetermined units; A second step of setting a fine virtual track section by dividing any virtual track section set in the first step evenly by a predetermined unit; When the virtual track is set, a third step of sequentially reproducing each of the fine virtual track sections divided into the virtual track sections for a predetermined period of time is provided by providing a track introduction method of an optical disc player. Therefore, there is an effect that it is possible to accurately find a predetermined track position in the optical disc containing the desired program for a shorter time.

Description

How to introduce tracks on an optical disc player

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc player, and more particularly, to a track search method of an optical disc player configured to play an image for a predetermined time for each minute section within a predetermined section desired by a user.

In general, optical disc players include compact disk players (CDPs), laser disk players (LDPs), compact disk graphic players (CDGPs), and video compact disk players (VCDPs). 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.

Such an optical disc player has been developed to record and reproduce image and audio data on a semi-permanent optical disc as audio and video media have 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.

On the other hand, the optical disc player provides a search and playback function, which allows the user to start playback from a predetermined section selected by the user.

However, the search and playback function of the optical disc player according to the prior art has a problem that it is not possible to know the contents of the program recorded on the disc, so that it is necessary to play each track one by one.

In addition, a track introduction method has been proposed in order to eliminate such inconvenience. In the conventional track introduction method, a method of reproducing a predetermined time for each section of the entire optical disc has been used.

However, in the conventional track introduction method, since all the tracks of the optical disc are introduced, there is a problem that the time required is long, and because each track unit to be introduced is large, it is impossible to find exactly the content to be played back, or There was a problem in that the playback was required from near the track containing the contents to be played.

Accordingly, the present invention has been made in view of the above-described problems, and an object of the present invention is to set a virtual track in units of predetermined tracks, to set a fine track in which the set virtual track is subdivided, and then to reproduce the virtual track. The present invention provides a method of introducing a track of an optical disc player, which can be sequentially reproduced for a predetermined time for each track fine track.

In order to achieve the above object, in the present invention, in the track introduction method of an optical disc player for introducing a program recorded on each track to an optical disc, an arbitrary virtual track section is divided by equally dividing the optical disc into predetermined units. Setting up a first step; A second step of setting a fine virtual track section by dividing any virtual track section set in the first step evenly by a predetermined unit; When the virtual track section is set, a third step of sequentially playing a predetermined time for each subdivided minute virtual track section value of the virtual track section provides a track introduction method of an optical disc player. .

1 is a block diagram of hardware for implementing a track introduction method of an optical disc player according to the present invention;

2 is a detailed flowchart illustrating a track introduction method of an optical disc player according to the present invention;

* Explanation of symbols for main parts of the drawings

100: key input unit 200: system control unit

300: counter 400: storage

500: OSD processing unit 600: optical disc player

700 monitor

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

1 is a block diagram of hardware for implementing a track introduction method of an optical disc player according to the present invention, and includes a key input unit 100, a system control unit 200, a counter 300, a storage unit 400, and an OSD processing unit ( 500), the optical disc player 600, and the monitor 700, and the functions performed by the respective members are as follows.

First, the key input unit 100 includes a plurality of keys including an intro key, a play key, a numeric key, and a direction key, and generates a key signal corresponding to a user's key operation to the system control unit 200. to provide.

The system controller 200 controls the overall operation of the optical disc player 600 in response to a key signal provided from the key input unit 100 and a signal provided by each component member of the optical disc player 600. In particular, the optical disc player Each track section of the optical disc mounted on the 600 is divided into a predetermined virtual track and a fine virtual track in correspondence to a unit set by a user or a producer, and when the introductory key signal is provided from the key input unit 100, The optical disc player 600 and the counter 300 are controlled to play the virtual track for a predetermined time.

The counter 300 counts the time for the optical disc player 600 to play the program recorded in the fine virtual track of the optical disc under the control of the system controller 200.

The storage unit 400 stores predetermined character information to be output on an on-screen display (OSD) screen and predetermined time information for reproducing the fine virtual track to set the virtual track and the fine virtual track. Segment information for the virtual track is stored.

Under the control of the system controller 200, the OSD processor 500 OSD-processes the character information extracted by the system controller 200 from the storage 400 to set the virtual track and the fine virtual track. Output to the OSD screen.

The optical disc player 600 performs the overall operations of the optical disc player 600 such as searching for and playing a predetermined track of the optical disc under the control of the system controller 200.

The monitor 700 displays an OSD screen processed by the OSD processing unit 500 and a screen on which the optical disc player 600 reproduces a program recorded on the optical disc.

Hereinafter, the track introduction method of the optical disc player according to the present invention implemented by the hardware composed of the above-described structural members will be described in detail with reference to FIG.

2 is a detailed flowchart illustrating a track introduction method of an optical disc player according to the present invention.

First, when a disc is loaded in the optical disc player 600 (S 10), the optical disc player reads TOC information contained in a table of contents area located in a load-in section of the disc, thereby controlling the system. The system control unit 200 stores the TOC information provided by the optical disc player 600 in an internal memory (not shown) or the storage unit 400 provided in the system control unit 200. (S20) At this time, the TOC information may include information on the position of each track of the optical disc, information on the total reproduction time, and the like.

Thereafter, when the user manipulates the introduction key provided in the key input unit 100, the key input unit 100 generates an introduction key signal corresponding to the introduction key, and provides the generated key signal to the system controller 200. (S 30)

The system controller 200 receiving the introduction key signal from the key input unit 100 withdraws predetermined character information from the storage unit 400 for setting the virtual track section and the fine virtual track section, and then extracts the predetermined character information. The OSD processing unit 500 is controlled to output a to the OSD screen on the monitor 700.

Under the control of the system controller 200, the OSD processing unit 500 OSD-processes the predetermined character information extracted from the storage unit 400 and outputs the OSD on the monitor 700. In this case, the system controller 200 Maintains the key signal standby state (S 40).

Thereafter, while viewing an OSD screen output to the monitor 700 and the user manipulates a numeric key or a direction key for setting the virtual track section and the fine virtual track section, the key input unit 100 controls the key signal operated by the user. Is generated, and the generated key signal is provided to the system controller 200. (S50)

When the system controller 200 which is in the key signal standby state receives a key signal from the key input unit 100, sets the virtual track section and the fine virtual track section in response to the key signal provided from the key input unit 100, and sets Information about the track section is stored in the storage unit 400. (S 60)

In this case, the virtual track section may be divided into a predetermined number of whole reproduction time, or may be divided by a predetermined time unit.

For example, if the total playing time is 60 minutes, it may be set to a virtual track divided into 10 sections and divided into 6 minutes, or it may be set to 12 virtual tracks by dividing the entire playing time into 5 minutes. . At this time, if the virtual track section is set to a small time unit, it is difficult to find the track information that contains the program to be played. However, if the virtual track section is set to a too large time unit, the range for introducing as a fine track becomes wider. Since this becomes longer, it may be desirable to set it in a time range of about 5 to 10 minutes in consideration of this.

On the other hand, the fine virtual track section may also divide the virtual track section by a predetermined number, or may be divided by a predetermined time unit.

For example, if the virtual track is set in units of 10 minutes, the virtual track section may be finely divided into five sections and set as a minute virtual track section in units of two minutes. It may be set as a track section. Even at this time. If the subdivision unit is too small, it may be difficult to find the content you are looking for because the playing time is too short for the track introduction, or it may be the same as playing the entire virtual track section. Would be desirable.

When the step S60 is completed, the system controller 200 extracts predetermined text information from the storage 400 to output to the OSD screen to set the track introduction section, and outputs the extracted text information to the OSD screen. The OSD processing unit 500 is controlled to control the OSD processing unit 500.

Under the control of the system controller 200, the OSD processing unit 500 OSD-processes predetermined text information extracted from the storage controller 400 by the system controller 200 and displays the text information on the OSD screen through the monitor 700. (S 70)

Thereafter, while viewing an OSD screen output to the monitor 700 and the user manipulates a numeric key or a direction key for setting a virtual track section to which the track is to be introduced, the key input unit 100 receives a key signal operated by the user. And generates the generated key signal to the system controller 200. (S80)

Subsequently, the system controller 200 refers to information about the virtual track section and the fine virtual track section stored in the storage 400, and thus, the first fine of the virtual track section corresponding to the key signal provided from the key input unit 100. The optical disc player 600 is controlled to play the track section.

In addition, the system controller 200 controls the counter 300 to count the time for playing the first fine track section in the optical disc player 600.

Therefore, under the control of the system controller 200, the optical disc player 600 reproduces the program stored in the first minute track section of the virtual track section set by the user and outputs the program through the monitor 700 (S90). At the same time as step S90, the counter 300 counters the time for playing the program recorded in the first fine track section in the optical disc player 600. (S100)

On the other hand, during step S90 and step S100, the system control unit 200 checks whether the reproduction key signal is applied from the key input unit 100 (S110), and as a result of the check, the reproduction key from the key input unit 110 is performed. When the signal is applied, the track introduction operation is stopped, and the program recorded in the optical disc player is played back normally from the time when the play key signal is applied.

On the other hand, when the check result of step S 120, if the reproduction key signal is not applied from the key input unit 100, the system controller 200 writes the time counted by the counter 300 and the storage unit 400 in step S 100. Compare the fine track playing times that have been set and stored (S 130).

As a result of the comparison in step S 130, if the time counter counted by the counter 300 is smaller than the fine track reproduction time which is preset and stored in the storage unit 400, the system controller 200 performs steps S 90 to S 130. The optical disc player 600 and the counter 400 are controlled to repeat the step.

On the other hand, as a result of the comparison in step S 130, if the time counted by the counter 300 is greater than or equal to the fine track playing time which is preset and stored in the storage unit 400, the system control unit 200 controls the next fine track. The optical disc player 600 is controlled to reproduce the section (S 140).

Thereafter, the above-described steps S100 to S140 are repeated until a reproduction key signal is generated from the key input unit 100 or playback of all fine track sections in the virtual track section set by the user is finished.

According to the present invention described above, by reproducing the fine track subdivided into small sections sequentially for a predetermined time within a predetermined section to which track introduction is desired, an effect of accurately finding a predetermined track position in an optical disc containing a desired program for a shorter time period is obtained. There is.

Claims (5)

In the track introduction method of an optical disc player for introducing a program recorded on each track on an optical disc, A first step of equally dividing the optical disc into predetermined units to set an arbitrary virtual track section; A second step of setting a fine virtual track section by dividing any virtual track section set in the first step evenly by a predetermined unit; And if the virtual track is set, reproducing each of the fine virtual track sections subdivided into the virtual track sections for a predetermined period of time sequentially. 2. The track searching method of claim 1, wherein the virtual track section divides the entire playing time of the optical disk into a predetermined number evenly. The track searching method of claim 1, wherein the virtual track section divides the entire playing time of the optical disc evenly into predetermined time units. 4. The track search method according to any one of claims 1 to 3, wherein the fine virtual track divides the virtual track sections evenly into a predetermined number. 4. The track search method according to any one of claims 1 to 3, wherein the fine virtual track subdivides the virtual track section by a predetermined time unit.