KR19980017224A - How to Display Disc Information in a Video Compact Disc Player - Google Patents

Abstract

The present invention relates to a method of displaying disc information in a video compact disc player, comprising the steps of (a) determining whether a disc currently being played is a version 2.0 video compact disc (VCD2.0), and (b) (a) steps. Determining whether a predetermined key signal is input if the disc being played back is VCD2.0; and (c) if a predetermined key signal is input in step (b), the key signal is an item information display key signal or a corresponding offset. Determining whether it is a key signal without a key, and if it is a key information display key signal or a key signal without a corresponding offset, reading and displaying information on the currently playing item (Item), and (d) input in step (c). And if the key signal is a key signal having a corresponding offset and not an item information display key signal, executing a function corresponding to the key signal.

Accordingly, the present invention provides a more convenient way for a user to conveniently display VCD2. 2 items by displaying item information on an item being played when a key signal without a user's need and a corresponding offset is input when performing playback of a VCD2.0 disc in a video compact disc player. This has the advantage of enabling the function of zero.

Description

How to Display Disc Information in a Video Compact Disc Player

1 is a schematic block diagram of a video compact disc player for practicing the present invention;

2 is a flowchart of a method of displaying disc information in a video compact disc player according to a preferred embodiment of the present invention.

3 and 4 illustrate item information displayed on a screen according to the present invention.

＊ Description of symbols for main parts of the drawings ＊

10: Pickup and Actuator

20: RF signal amplification and servo signal processing unit

30: motor drive unit 40: key input unit

50: microcomputer 60: digital signal processing part

70: MPEG decoder 80: Audio signal processor

90: video signal processing unit 100: speaker

110: Screen

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video compact disc player. In particular, when a designated key or a wrong key is input when playing a video compact disc of version 2.0, a video for displaying a disc information of an item currently being played on a screen is displayed. A disc information display method in a compact disc player.

Optical disk players currently developed and used include compact disk players (CDP), laser disk players (LDP), compact disk graphic players (CDGP), and video compact disk players (CDGP). VCDP: video compact disk player) has been developed and used, and recently, digital video disk (DVD) using MPEG-2 moving picture compression technology has been developed, which is a 12cm optical disk like the current CD. It can record and play back several gigabytes (GB) of data including moving pictures.

On the other hand, such optical disc reproducing apparatuses reproduce images and / or audio recorded on optical discs and output them through a screen and / or a speaker, and have a higher signal-to-noise ratio than conventional image and / or audio reproducing apparatus. It has the advantages of being able to reproduce signals with image quality and / or sound quality, no noise caused by irregular reproduction and modulation, very low distortion, no ghost and random access, and so on. There is a trend that is widespread.

On the other hand, there are two types of video compact discs used in the video compact disc player, such as VCD 1.1 of version 1.1 and VCD 2.0 of version 2.0. Among these, VCD 2.0 is a user interactive disk, and can perform a playback control (PBC) function that allows a user to step through a menu screen. The data for performing such a function is The first track of VCDP 2.0 is recorded in a play sequence descriptor (PSD) area, and this data consists of a Play List and a Selection List.

By the way, when the playback is performed on such a VCD2.0 disc, a user may input a wrong key signal without an offset value or the user may not be sure which key signal to input next.

Accordingly, the present invention has been proposed in view of the above-described points, and an object of the present invention is to input a wrong key signal without an offset value when playing a VCD2.0 disc in a video compact disc player, or to know information about an item currently being played. The present invention provides a method of displaying disc information of a video compact disc player that can display information on an item currently being played.

According to a preferred embodiment of the present invention for achieving this object, in the method for displaying disc information in a video compact disc player, (a) determining whether the disc currently being played is a video compact disc (VCD2.0) of version 2.0; (B) determining whether a predetermined key signal is input when the disc being played in step (a) is VCD2.0, and (c) when a predetermined key signal is input in step (b). It is determined whether the key signal is an item information display key signal or a key signal without the offset. If the key signal is an item information display key signal or a key signal without the offset, information about the currently playing item is read and displayed. And (d) if the key signal input in the step (c) is a key signal having a corresponding offset, not an item information display key signal, And a step of executing the function.

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

1 is a schematic block diagram of a video compact disc player for practicing the present invention.

As shown in FIG. 1, a video compact disc player for implementing the present invention includes a pickup and actuator unit 10, an RF (radio frequency) signal amplification and servo signal processor 20, a motor driver 30, and a key input unit. 40, the microcomputer 50, the digital signal processor 60, the MPEG decoder 70, the audio signal processor 80, the video signal processor 90, the speaker 100, and the screen 110.

The pickup and actuator unit 10 executes an optical pickup from a disc loaded in a disc tray (not shown) and outputs an RF signal which is read accordingly.

In addition, the motor driving unit 30 drives the spindle motor (not shown) to rotate the disk, and drives the actuator unit 10 so that the pickup unit 10 performs optical pickup to read the data recorded on the disk to RF Output as a signal.

The RF signal amplification and servo signal processing unit 20 amplifies an RF signal provided from the pickup and actuator unit 10 and provides a servo control signal according to the signal to the motor driving unit so that the focus servo and the tracking servo can be performed.

The digital signal processing unit 60 digitally processes the amplified RF signal provided from the RF signal amplification and servo signal processing unit 20, performs error detection and error correction, and outputs the result to the MPEG decoder 70.

The MPEG decoder 70 decodes an error corrected digital video signal and an audio signal provided from the digital signal processor 60 based on the MPEG compression format and outputs the decoded video signal to the video signal processor 90 and the audio signal processor 80. .

The audio signal processor 80 and the video signal processor 90 process the decoded audio and video signals provided from the MPEG decoder 70 and output them to the speaker 100 and the screen 110, respectively. ) And the screen 110 are displayed as an audio transmission and an image, respectively.

On the other hand, according to the present invention, when a function such as playback is executed in accordance with the above-described operation, the microcomputer 50 determines the type of the disc currently being played, and the type of the disc is a video compact disc (VCD2. If 0), it is determined whether the next key signal input from the key input unit 40 is an item information key signal or a key signal without offset in the current state.

At this time, when an item information display key signal is input or a key signal without offset is input, the microcomputer 50 displays information about the currently playing item recorded in the first track of VCD2.0, that is, the PSD area of track 1. The image signal is read and provided to the video signal processor 90, and the video signal processor 90 processes the text and outputs the text to the screen 110, and the screen 110 displays the text.

Meanwhile, the item information displayed on the screen 110 includes and displays data as shown in FIG. 3 when the currently playing item is a play list, and displays data shown in FIG. 4 when it is a selection list. And are displayed.

2 is a flowchart of a disc information display method in a video compact disc player according to a preferred embodiment of the present invention.

In step S10, it is determined whether the type of the disc currently being played is VCD2.0. If the type of the disc is not VCD2.0, the flow ends. If it is VCD2.0, the flow proceeds to step S20.

Then, in step S20, it is determined whether a predetermined key signal is input, and if so, the flow proceeds to step S30.

Thereafter, in step S30, it is determined whether the key signal input in step S20 is an item information key signal. If it is an item information key signal, the process proceeds to step S50; otherwise, the process proceeds to step S40.

When the process proceeds from step S30 to step S40, in step S40, it is determined whether the key signal input in step S20 has a corresponding offset. If there is no corresponding offset, the process proceeds to step S50. If there is an offset, the flow proceeds to step S70 to perform a function according to the key signal and end the flow.

On the other hand, if the process proceeds from step S30 or step S40 to step S50, in step S50, information on the currently playing item is read out and displayed in step S60.

As described above, the item information displayed in step S60 is as shown in FIG. 3 in the case of a play list, and as shown in FIG. 4 in the case of a selection list.

Accordingly, the present invention provides a more convenient way for a user to conveniently display VCD2. 2 items by displaying item information on an item being played when a key signal without a user's need and a corresponding offset is input when performing playback of a VCD2.0 disc in a video compact disc player. This has the advantage of enabling the function of zero.

While the invention has been shown and described with reference to certain preferred embodiments, those skilled in the art will recognize that various modifications and changes can occur without departing from the spirit and scope of the invention as set forth in the claims below.

Claims (1)

A method of displaying disc information in a video compact disc player, the method comprising: (a) determining whether the disc currently being played is a video compact disc (VCD2.0) of version 2.0; (b) determining whether a predetermined key signal is input if the disc being played in step (a) is VCD2.0; (c) When a predetermined key signal is input in step (b), it is determined whether the key signal is an item information display key signal or a key signal without a corresponding offset to determine an item information display key signal or a key signal without a corresponding offset. Reading and displaying information on an item currently being played; (d) if the key signal input in the step (c) is a key signal having a corresponding offset and not an item information display key signal, executing the function corresponding to the key signal; Display method.