KR19980085475A - Short play method of optical disc player - Google Patents

Abstract

The present invention relates to a method for shortening and reproducing an optical disc. The method for reproducing an optical disc in which predetermined information including surplus information is considered to be insignificant by a user is provided. A first step of storing location information on the set excess interval; By reproducing the optical disc player, the optical disc player comprises a second step of retrieving whether there is position information on the surplus section when the optical disc is reproduced, and rapidly reproducing the excess section at a predetermined magnification. While playing all the sections of, it is possible to play with more weight on the section containing important information in a short time.

Description

Short play method of optical disc player

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a short playback method in an optical disk player, and more particularly, to a short playback method of an optical disk player capable of shortening a playback time of an entire optical disk by fast playing back an excess section which is not important to a user. It is about.

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, in the above-described optical disc player, since the optical disc mounted in the playback mode is played at a constant speed at a constant speed, time loss for constant speed playback of a non-critical section occurs.

In addition, even if you want to pass quickly for a non-significant section, there was a hassle of having to manually operate the key for the surplus section.

The present invention has been made in view of the above-described problems, and an object of the present invention is to set a section which is not important to a user as a redundant section, to play all the sections of the optical disc, but to perform constant speed playback only for the important section. It is to provide a short play method of an optical disc player capable of high speed play for the remaining excess section.

In order to achieve the above object, in the present invention, in the method for reproducing an optical disc in which predetermined information including excess information that a user considers to be insignificant is included, after setting an excess section in which the surplus information is recorded during reproduction of the optical disc, A first step of storing location information on the set excess interval; The present invention provides a method for short-playing an optical disc player, comprising: a second step of searching whether there is positional information on the excess section when the optical disc is played, and if the excess section exists, quickly playing the excess section at a predetermined magnification.

1 is a block diagram of hardware for implementing a short-term playback method of an optical disc player according to the present invention;

2 is a flowchart illustrating a method of setting an excess section in a method of short-time playback of an optical disc player according to the present invention;

Fig. 3 is a detailed flowchart showing a method of short playing 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 disk player 400: storage unit

500: OSD processing unit

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

1 is a block diagram of hardware for implementing a method of short-term playback of an optical disc player according to the present invention. The key input unit 100, the system control unit 200, the optical disc player 300, the storage unit 400, and the OSD processing unit It consists of 500.

As such, each component member of the hardware for implementing the method for shortening the optical disc player according to the present invention performs the following functions.

First, the key input unit 100 includes a plurality of function keys including a redundant section setting key, a shortcut playback key, a numeric key, and a direction key, and when one of the keys provided as described above is manipulated by a user, A key signal corresponding to the key is generated and provided to the system controller 200.

The system controller 200 controls the overall operation of the optical disc player in response to a key signal generated from the key input unit 100 or various signals input from each component of the optical disc player 300.

The optical disc player 300 performs general operations of the optical disc player such as playback, fast playback, slow playback, and the like under the control of the system controller 200 corresponding to the key signal generated by the key input unit 100.

The storage 400 stores and stores data about the start point and the end point of the surplus section, the preset speed, the unique number of the disk, and the like, and predetermined character information indicating that there is no surplus section.

The OSD processing unit 500 OSD-processes the text data preset in the storage unit 400 under the control of the system control unit 300.

Hereinafter, a method of shortening and reproducing an optical disc player according to the present invention using the hardware composed of the above-described structural members will be described with reference to FIGS. 2 and 3.

2 is a flowchart illustrating a process of setting an excess section in the method of shortening playback of an optical disc player according to the present invention, and FIG. 3 is a detailed flowchart showing a method of shortening playback of an optical disc player according to the present invention.

First, when an optical disc is loaded in the optical disc player 100 (S 1), the optical disc player reads TOC information of a TOC (Table Of Contents) area allocated to a load-in section of the optical disc, thereby controlling the system controller ( The data is stored in the internal memory (not shown) of the 200 or the storage unit 300 (S 2).

The TOC information read out from the TOC area may also include the unique number of the optical disc and the positional information of each track.

Thereafter, when the user manipulates the play key provided in the key input unit 100, the key input unit 100 generates a play key signal and provides the generated key signal to the system controller 200 (S 3).

The system control unit 200 receiving the play key signal from the key input unit 100 controls the optical disc player to play the optical disc mounted in the optical disc player 300, and the optical disc player 300 is controlled by the system control unit 200. ) Reads the predetermined information contained in the mounted optical disc and provides the system controller 200 with the position information of the optical disc which is currently reading the information. (S 4)

In step S4, when the user manipulates the redundant section setting key provided in the key input unit 100 to set the redundant section, the key input unit 100 generates a redundant section setting key signal to generate the system control unit 200. Provided to (S 5). In this case, the excess section may be a section in which the user feels bored or unnecessarily feels unnecessary to watch / listen, or may be a section other than the section that the user wants to watch again.

The system controller 200 receiving the surplus section setting key signal from the key input unit 100 stores the position information of the optical disc at the moment when the surplus section setting key signal is applied to the storage unit 400 as a start point of the surplus section (S6). ). At this time, the data for the start point of the redundant section will be stored together with the unique number of the optical disc. Further, in step S6, the optical disc player 300 will be made in a state of continuously maintaining the playback operation.

Subsequently, when the excess section release key signal is generated again from the key input unit 100 by the user's key manipulation (S7), the system controller 200 recognizes the excess section release key signal and generates the excess section release key signal. The location information of the optical disc at the point to be stored is stored in the storage unit 400 as an end point of the surplus section (S 8). In this case, it is preferable that the data on the end point of the redundant section is stored together with the unique number of the optical disk and the start point of the redundant section stored in step S6.

On the other hand, at the moment when the excess section release key signal is input, the system controller 200 may add a function for storing the position data at the moment when the release key signal is input and at the same time setting the reproduction magnification of the excess section.

In order to set the reproduction magnification of the surplus section as described above, first, the system controller 200 withdraws the character data asking for whether to set the magnification of the optical disc from the storage unit 400 to OSD-process the extracted data. The processor 500 controls the processing unit 500, and accordingly, a monitor (not shown) may output a predetermined OSD screen inquiring the user of the reproduction ratio of the excess section.

At this time, the user may determine whether to set the excess section reproduction ratio while looking at the OSD screen (S 10).

If the user determines that the playback magnification is not set in step S10, the system controller 200 controls to repeat step S10 in step S4 described above until a stop key signal is input from the key input unit 100, After the user decides to set the reproduction magnification in step S 10, when a key signal for selecting magnification is applied (S 11), the system controller 200 stores the reproduction magnification corresponding to the applied key signal in the storage unit 400. (S 12) At this time, the key for selecting the magnification may be a numeric key or a direction key, and the user may use the same number keys or direction keys to double, triple or quadruple speed. It is possible to set up to play the surplus screen at double speed.

Thereafter, the optical disc player 300 repeats steps S4 to S12 described above until a stop key signal is generated from the key input unit 100. In this case, when the stop key signal is generated from the key input unit 100 (S 13), the system control unit 200 controls the optical disc player 300 to stop the playback operation, and the optical disc player 300 controls the system control unit 200. The playback operation is interrupted under the control of (S 14).

The process of setting the excess section is as described above, and a method of short-playing an optical disc in which the excess section is set by the above-described process will be described.

First, when a predetermined optical disc is loaded into the optical disc player (S 101), the optical disc player 300 reads TOC information from the TOC area allocated to the load-in section of the optical disc, thereby saving internal memory (not shown) in the system control unit 200. Or the TOC information in the storage unit 400 (S 102). At this time, by reading the TOC information, the system controller 200 recognizes the unique number and track information of the optical disc.

Subsequently, when a user manipulates a short play key provided in the key input unit 100 to short-play the optical disc mounted on the optical disc player 300, the key input unit 100 generates a short play key signal to generate a system control unit ( 200) (S 103).

In step S13, the system controller 200 to which the short play key signal is applied searches for the storage unit 400 and searches whether data for the excess section corresponding to the unique number of the optical disc recognized in step S102 is stored. (S 104)

As a result of the search in step S104, if the storage unit 400 does not have any information on the excess section corresponding to the unique number of the optical disc, the optical disc player 300 is controlled to play back all the data contained in the optical disc at a constant speed. The optical disc player 300 continuously plays back the optical disc mounted under the control of the system controller 200 (S 110).

On the other hand, if the search result of step S104, the storage unit 400 has information on the excess section corresponding to the unique number of the optical disk, the system control unit 200 withdraws the data for the excess section from the storage unit 400 (S 105) In this case, the data for the excess section includes the position data for the start point and the end point of the excess section, and may also include data for the reproduction magnification in some cases.

The system controller 200 performs step S 105 and at the same time controls the optical disc player 300 to perform the playback operation of the optical disc, and retrieves the current playback position of the optical disc. At this time, the optical disc player 300 performs the reproducing operation of the optical disc under the control of the system control unit 200 and simultaneously provides the system control unit 200 with the position information of the optical disc currently being reproduced. Will retrieve the current playback position. (S 106)

In step S 106, the system control unit 200 compares the start point of the redundant section drawn out in step S 105 with the playback position of the current optical disc (S 107), and as a result of the comparison, the current playback position of the optical disc is drawn out in step S 15. If the start point of the surplus section coincides with the start point, the system controller 200 controls the optical disc player 200 to play the optical disc at high speed at a preset reproduction ratio. At this time, if the data on the reproduction magnification is extracted in step S 105, the system controller 200 will control the optical disc player 300 to play the excess section at high speed with the extracted reproduction magnification. If the data is not extracted, the optical disc player 300 will be controlled to play at high speed at a preset reproduction ratio.

Therefore, under the control of the system control unit 200, the optical disc player 300 performs high-speed reproduction at a predetermined magnification for the excess section, and provides the system control unit 200 with position information on the position currently being reproduced. S 108)

At the same time as the high speed playback in step S 108, the system control unit 200 compares the end point of the current playback position and the excess section provided by the optical disk player 300 (S 109), The system controller 200 determines whether there is a next surplus section (S110), and if there is a next surplus section, repeats step S106 to S110, and if there is no next surplus section, normal playback at a constant speed for the remaining sections. (S 111)

As described above, by using the short playback method of the optical disk player according to the present invention, the user can watch or listen to the desired section at a constant speed while being able to watch or listen to all the information contained in the optical disk in a short time. There is.

Claims (2)

In the method of reproducing an optical disc player for reproducing an optical disc having a surplus information which is not desired by a user in a predetermined section and having an individual unique number, A first step of reading the unique number of the optical disc and storing positional information about the excess section together with the unique number of the optical disc if there is an excess section in which the excess information is recorded during the reproduction of the optical disc; And a second step of retrieving whether there is information on a surplus section according to a unique number of the optical disc when the optical disc is reproduced, and rapidly reproducing the excess section of the optical disc at a predetermined predetermined magnification. 2. The method of claim 1, wherein the first step includes a step of setting a fast reproduction ratio of the excess section, and the second step is a step of reproducing the excess section at the fast reproduction ratio set in the first step. The short play method of the optical disc player.