KR19980078974A - How to play optical disc - Google Patents

Abstract

The present invention relates to an optical disc reproducing method of reproducing an initial menu screen by switching a PBC (Play Back Control) function mode from an off state to an on state by one key operation in an optical disc reproducing apparatus. A first checking step of checking whether the optical disc is an optical disc capable of performing a function when a key for requesting the operation mode for the function is switched from the on state to the off state after mounting is applied; A second check step of checking whether the function is in an off state if it is determined that the optical disc can perform a function as a result of performing the first check step; Returning if the function is not in the off state as a result of performing the second check step; A third check step of checking whether or not the function mode of the optical disc player is in track playback when the function is turned off as a result of performing the second check step; If the optical disc player is in the state of playing the track, if the optical disc player is in the state of playing the track, turning on the function to play the initial menu screen. It is carried out including.

Description

How to play optical disc

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc reproducing method in an optical disc reproducing apparatus, and more particularly, to an optical disc reproducing device that facilitates a transition from the off state to the on state of the PBC (Play Back Control) function mode during optical disc reproducing. It is about a method.

In general, the PBC function allows a user to select a program to be played through a menu-played screen. As shown in FIG. 1, an optical disc proposed to perform the PBC function basically divides an information storage area into a lead-in area 100, a data area 102, and a lead-out area 104, and a data area. Information for performing the above-described PBC function is stored in the first track 102 (hereinafter referred to as track 1). In particular, as shown in FIG. 2, the track 1 includes a primary volume descriptor (PVD) area 200, a basic information area 202, a video CD information area 204, a segment play item (SPI) area 206, and a CDI ( CD Interactive) is divided into an area 208, and stores the corresponding information. Among the areas, menu information necessary for performing the above-described PBC function in the SPI area 206 (for example, still images introducing menu contents). Slice screen and video screen) and address information of these menu information are stored in the PSD (Play Sequence Discriptor) area of the video CD information area 204 described above. An optical disc having the same structure is sometimes referred to as CD version 2.0.

In the playback process for such an optical disc, in order to switch the off PBC function mode to an on state, there has been a hassle of controlling a plurality of function keys. In other words, control the 'stop key' to turn off the playback mode, control the 'pbc on' key to switch the PBC function mode on, and then control the 'play key' to perform the PBC function mode. The first menu screen was played.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned shortcomings. In the optical disc reproducing apparatus, the first menu screen is reproduced by switching the PBC (Play Back Control) function mode from the off state to the on state by one key operation during the optical disc reproduction. An optical disc reproducing method is provided.

Another object of the present invention is to provide an optical disc reproducing method of reproducing the initial menu screen for performing the PBC function mode by switching the PBC function mode, which is set to the off state, to an on state by using a menu key during the optical disc reproducing apparatus. To provide.

In order to achieve the above object, an optical disc reproducing method according to the present invention includes information for performing a function of reproducing and selecting, in a menu form, details information about a program stored in a data area in a predetermined area within a data area. In a device for reproducing an optical disc, a key for checking whether the optical disc is an optical disc capable of performing a function when a key for requesting the operation mode for the function is switched from the on state to the off state after mounting the optical disc is applied. 1 check step; A second check step of checking whether the function is in an off state if it is determined that the optical disc can perform a function as a result of performing the first check step; Returning if the function is not in the off state as a result of performing the second check step; A third check step of checking whether or not the function mode of the optical disc player is in track playback when the function is turned off as a result of performing the second check step; If the optical disc player is in the state of playing the track, if the optical disc player is in the state of playing the track, turning on the function to play the initial menu screen. It is characterized in that it is performed.

1 is an overall structure diagram of an optical disc capable of performing a PBC (Play Back Control) function

FIG. 2 is a data structure diagram included in track 1 shown in FIG.

3 is a schematic functional block diagram of a general optical disc player

4 is a flowchart of an optical disk reproducing method according to the present invention.

* Explanation of symbols for main parts of drawings *

300: optical disk 310: key input unit

320: control unit 330: playback processing unit

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, an embodiment of the present invention for achieving the above object in detail.

3 is a schematic block diagram of a general optical disc reproducing apparatus, in which an optical disc 300 containing code information capable of performing a PBC (Play Back Control) function and a key for applying a user's command The controller 310 controls to perform a function according to a command applied through the input unit 310, the key input unit 310, and reads (or picks up) information stored on the optical disc 300 by the controller 320. And a reproducing processor 330 for reproducing.

4 is a flowchart of an optical disk reproducing method according to the present invention.

Next, an operation of the optical disc reproducing method according to the present invention shown in FIG. 4 will be described in detail with reference to FIG. 3.

The controller 320 checks whether the Menu key is controlled in step 400. As a result of the check, if the menu key is not controlled, it is returned and does not perform the operation according to the present invention. However, as a result of the check, if the menu key is controlled, the process proceeds to step 410 to check whether the currently mounted optical disc 300 is configured to perform the PBC function (hereinafter, referred to as version 2.0). Here, the menu key is a key for requesting a transition from the on state to the off state in the PBC function mode.

As a result of checking in step 410, if the mounted optical disc 300 does not have a version 2.0 structure, the operation according to the present invention is terminated. However, if the mounted optical disc 300 has a version 2.0 structure as a result of step 410, the process proceeds to step 420 to check whether the PBC function mode is OFF. If the result of the check is not off, it is returned.

However, if it is determined in step 420 that the PBC function mode is off, the process proceeds to step 430 to check whether a track is being played. As a result of the check, if the track is not being played back, the process returns to step 440. The PBC function mode is turned on and offset to 0000H. The initial menu screen is provided to the user at such an offset. The initial menu screen information is information pre-loaded in the controller 320. The loading information on the controller 320 is initialized after the optical disc 300 is mounted. It is read at the time and loaded into the control unit 320.

As described above, the present invention enables the switching of the PBC function mode from the off state to the on state by one key operation in the optical disc reproducing apparatus. There is an advantage to simplify.

Although the present invention has been described as the above-described embodiment, those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention. For example, in the above-described embodiment, the mode switch is performed by the menu key, but it may be set to play the same role as the above-described menu key by using a specific specific key or another function key. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (2)

An apparatus for reproducing an optical disc containing information for performing a function of reproducing and selecting history information of a program stored in the data area in a menu form in a predetermined area of the data area, the method comprising: A first checking step of checking whether the optical disc is an optical disc capable of performing the function when a key for requesting the operation mode for the function is switched from the on state to the off state after mounting the optical disc is applied; A second check step of checking whether the function is in an off state if it is determined that the optical disc can perform the function as a result of performing the first check step; Returning if the function is not in an off state as a result of performing the second check step; A third check step of checking whether the function mode of the optical disc player is in the state of playing tracks when the function is turned off as a result of performing the second check step; As a result of performing the third check step, if the optical disc reproducing apparatus is not in the state of playing a track; And reproducing the initial menu screen by turning on the function if the optical disc reproducing apparatus is in a track playing state as a result of performing the third check step. The optical disc reproducing method according to claim 1, wherein a menu key is used as a key for requesting a transition from the on state to the off state.