KR100189920B1 - Method for displaying reproduced information of an optical disc - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of displaying an optical video disc and playback information, and more particularly, to a method of displaying playback information for displaying angle screen information in a digital video disc (DVD) playback.

For the purpose of the present invention, an angle information reading step for reading out the number of angle screens and a total reproduction time of an angle, an angle starting step for reading out the disc information area to recognize the start of the angle screen, An angle information display step of displaying an angle number when the angle number is selected by the user and displaying the total time of the angle screen corresponding to the angle number and the angle number; The angle information display is performed until the playback time is greater than the total playback time of the selected angle, and the angle display ending is ended when the angle playback time is longer than the total playback time of the selected angle.

According to the present invention, when the digital video disk is reproduced, the angle screen information is displayed on the screen, and the user can see that the screen being viewed is an angle screen.

Description

How to display optical disc playback information

FIG. 1 is a signal format diagram recorded on a general digital video disk.

FIG. 2 is a block diagram showing a disc reproducing apparatus for explaining a method of displaying digital video disc reproducing information according to the present invention.

FIG. 3 is a flowchart illustrating a method of displaying digital video disc playback information according to the present invention.

FIG. 4 shows an on-screen display in the angle information display process of FIG.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for displaying optical video disc playback information, and more particularly, to a playback method for displaying angle screen information in a digital video disc (DVD) playback.

Generally, a digital video disk (DVD) is a storage medium that can store various digital information such as video and audio information.

In an audio, video, and stream transmitted from a disc when a digital video disc (DVD) is reproduced, an angle picture, which is a picture of moving pictures having the same contents photographed from various angles or developed differently at a certain point in time, It offers more convenient and versatile functions.

However, in the related art, there is a disadvantage that there is no way to know information about whether the screen that the user is currently viewing is an angle screen.

Accordingly, it is an object of the present invention to provide an optical disc playback information display method capable of knowing that a screen being viewed by a user is an angle screen by displaying on-screen the angle screen information when playing back a digital video disc, .

In order to accomplish the above object, the present invention provides a disc navigation pack (NV-PCF) area in which angle information data such as a navigation data area (read in advance) in which the number of angle screens is recorded and a total play time, The method comprising the steps of: reading angle information by detecting the disc navigation area and reading the total playing time of the angle screen and the angle; An angle start step of reading out the disc information area having the angle information data and recognizing that the start of the angle screen is started, an angle number display step of displaying numbers indicating a plurality of angle angles on the screen when the angle screen starts, In the step of displaying the angle number, An angle information display step of displaying a selected angle number and a total time corresponding to the selected angle number, a step of displaying the angle information until the current angle playback time is greater than a total playback time of the selected angle, And an angle display end step of ending the angle information display step if the angle information display step is larger than the total play time of the selected angles.

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

FIG. 1 is a signal format diagram recorded on a general digital video disk.

FIG. 1 is a diagram showing an example of the disc navigation information (NV-PCK: Navigation Pack) areas 110 and 130 in which angle information data of an angle total play time is recorded, an audio and video stream area 120 in which video data and audio data are recorded .

FIG. 2 is a block diagram showing a configuration of a general digital video disk reproducing apparatus.

2 is a block diagram illustrating a servo control system for controlling a disk servo and converting an RF (high frequency) signal recorded in a first format on a disk 210 into a digital signal, that is, Eight to Fourteen Modulation (EFM) A data processor 230 for demodulating an EFM signal input from the signal reproducing unit 220, the servo control and signal reproducing unit 220 and correcting an error; A decoder 240 for decoding and outputting the video stream and the DSI information, a front key for interfacing between the user and the player, and a playback information FLT such as a remote control key reception and playback time, the user interface microcomputer 250, And receives the user key from the user interface microcomputer 250 as a system controller to control the servo control and signal playback unit 120, the data processor unit 230, A system control microcomputer 260 for controlling the coder 240 and controlling various devices for controlling the coder 240, and an OSD (On) button 260 for displaying playback information such as angle screen information of the disc player, -Screen Display) control unit 270.

FIG. 3 is a flowchart illustrating a method of displaying digital video disc playback information according to the present invention.

The flow chart of FIG. 3 includes an angle information reading process 310 and 320, an angle screen start recognition process 330, an angle number display step 340, an angle number selection step 350, an angle information display step 360, And performing a display time delay of information (370, 380, 390).

FIG. 4 illustrates an on-screen display in the angle information display process 360 of FIG.

The flow chart of FIG. 3 will be described in connection with the format diagram of FIG. 1 and the block diagram of FIG. 2.

3, when the digital video disk is reproduced, the system control microcomputer 260 detects the navigation data information area 110 recorded at the beginning of the disc from the decoder 240 and displays the angle data And reads the total playing time of the angle through NV-PCK of the first degree (steps 310 and 320).

When the system control microcomputer 260 recognizes the start of the angle screen using the NV-PCK information recorded in a predetermined section of the angle screen recorded in a stream form during the disc playback (step 330), the OSD controller 270 ) To display numbers indicating a plurality of angle angles recorded in a menu file on the disc on the screen (operation 340).

When the user selects a desired number among the angle numbers displayed on the screen (operation 350), the system control microcomputer 260 generates an angle screen corresponding to the selected angle number and displays the angle screen corresponding to the angle number and the angle screen corresponding to the angle number Time is applied to the OSD control unit 270 and displayed on the screen (operation 360). For example, as shown in FIG. 4, information corresponding to the selected angle screen 410, that is, angle number: 2 and angle time: 00 minutes and 30 seconds are displayed on the screen.

Next, the system control microcomputer 260 detects the NV-PCK information in which the angle information is recorded for every predetermined section of the angle screen on which the angle is reproduced. The NV-PCK information is stored in the current angle playback time every time the NV-PCK information is detected ) (About 0.5 second) (step 380).

Therefore, the system control microcomputer 260 applies the angle information of the angle number and the total time to the OSD control unit 270 until the current angle playback time is greater than the total playback time of the selected angle (step 390) ), And if the angle playback time is greater than the total playback time of the selected angle (step 390), the angle information display (step 360) is terminated.

As described above, according to the present invention, when a digital video disc is played back, angle screen information is displayed on-screen so that it can be seen that the screen being viewed by the user is an angle screen, and a desired angle screen can be easily searched using information about the angle screen There is an advantage to be able to do.

Claims (2)

There is provided a method of displaying digital video disc playback information including a disc navigation area in which angle information data of an angle screen number and an angle total play time are recorded and a signal area in which video data and audio data are recorded, An angle information reading step of reading the angle information data by detecting the navigation area, an angle starting step of reading out the angle information data from the angle screen being reproduced and recognizing that the start of the angle screen is started, An angle number display step of displaying the numbers of the angles read out in the angle information reading step on the screen, an angle screen corresponding to the selected angle number when the angle number is selected by the user in the angle number display step, And the corresponding angle number An angle information display step of displaying a total time of the angle screen, a step of displaying the angle information until the current angle playback time is greater than a total playback time of the selected angle, and if the angle playback time is larger than the total playback time of the selected angle And an angle display end step of ending the angle information display step. The method of claim 1, wherein the angle information reading step reads out data information recorded at a head portion of a disc when a disc reproducing operation is started.