KR19990001679A - How to shorten disc playback start time for optical disc player - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc pickup of an optical disc player, and more particularly, to a method of shortening a reproduction start time of an optical disc player by performing disc loading and simultaneously moving pickups.

The present invention is a method for reducing the disc playback start time of an optical disc player that shortens the pickup initial position movement time of a disc newly mounted in a tray. Starting loading and pickup initial position movement; A disc loading end and pickup initial position movement sequence determination step of determining a disc loading termination and pickup initial position movement sequence when the disc loading and pickup initial position movement starts; As a result of the disc loading end and pickup initial position movement sequence determination, if disc loading end is performed before the pickup initial position movement, the disc loading is stopped and then the pickup movement is stopped, and when the pickup initial position movement is performed before the disc loading termination, the pickup movement is performed. Performing a loading stop operation or a pick-up movement stop to stop the loading of the disc after the stop; When the disc loading stop operation or the pickup movement stop is completed, the optical disc reproduction standby mode performing step of performing the optical disc reproduction standby mode can be performed, thereby reducing the reproduction start time.

Description

How to shorten disc playback start time for optical disc player

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc pickup of an optical disc player, and more particularly, to a method of shortening a reproduction start time of an optical disc player by performing disc loading and simultaneously moving pickups.

In general, an optical disc player reproduces an image and / or an audio recorded on an optical disc and outputs it through a screen and / or a speaker. The optical disc player is also resistant to dust and scratches and is picked up by a laser to pick up a signal. Or higher signal-to-noise ratio than audio playback devices, enabling better signal quality and / or sound quality, no noise from irregular playback and modulation, minimal distortion, ghostless and random There are various advantages such as accessibility, which is rapidly developing and widely spreading.

In addition, such optical disk players include compact disk players (CDP), laser disk players (LDP), compact disk graphic players (CDGP), and video compact disk players (VCDP: video). compact disk player) has been developed and widely used, and 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 is possible to record and play back gigabytes (GB) of data including moving images in an optical disc of 12 cm, and it is also made to be compatible to play current CDs and VCDs.

On the other hand, when the disc is loaded in the tray, the pickup of the optical disc player first loads the tray in which the disc is loaded, moves the pickup to the initial position of the next loaded disc after the disc loading operation is completed, and the pickup moves to the initial position. Pickup initialization was performed by stopping the pickup movement operation.

That is, by performing the initial position shift of the pickup after the disk loading operation is completed, there is a problem in that the disc type discrimination recognition time is delayed by the initial position pickup time, thereby delaying the optical disc reproduction time.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to reduce the playback time by performing disc loading and pickup initial position movement at the same time, thereby quickly recognizing the disc type and shortening the optical disc playback time. The present invention provides a method for reducing pickup time of an optical disc player.

A feature of the present invention for achieving the above object is a method for shortening the disc playback start time of an optical disc player, which shortens the pick-up initial position movement time of a disc newly mounted in a tray. A disc loading and pickup initial position movement start step of starting the pickup initial position movement; Determining the disc loading end and pickup initial position movement order to determine the disc loading end and the pickup initial position movement order when the disc loading and pickup initial position movement starts; As a result of the disc loading end and pickup initial position movement sequence determination, if the disc loading end is performed before the pickup initial position movement, the disc loading is stopped and then the pickup movement is stopped, and the pickup initial position movement is less than the end of the disc loading. Performing a loading stop operation or a pickup movement stop for stopping the disc loading after the pickup movement is first performed; And performing an optical disc reproduction standby mode in which an optical disc reproduction standby mode is performed when the disc loading stop operation or the pickup movement stop is completed.

The above 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.

1 is a configuration diagram of hardware to which the present invention is applied;

2 is a flowchart for performing a method for shortening a disc playback start time of an optical disc player according to a preferred embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

10: disc 20: disc loading motor

30: optical pickup unit 40: delivery motor

50: micom 60: disk loading end detection unit

70: optical pickup initial position detection unit 80: key input unit

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

1 is a block diagram of hardware to which the present invention is applied, and includes an optical disc 10, a disc loading motor 20, an optical pickup unit 30, a delivery motor 40, a microcomputer 50, and a disc loading end detection unit. 60, the optical pickup initial position detecting unit 70, and a key input unit 70.

Reference numeral 10 denotes an optical disc. Although not shown in the drawing, the optical disc includes a hole area, a lead-in area containing TOC (Table of Contents) information, a file area containing a substantial program, and a lead-out area.

The key input unit 80 is typically composed of key metrics to provide a predetermined key signal pressed by the user to the microcomputer 50.

Therefore, when the disc 10 is mounted on the tray and a signal for the playback key is provided from the key input unit 80, the microcomputer 50 outputs a disc loading motor driving control signal for loading the disc 10 mounted on the tray. It supplies to the loading motor 20, and supplies a delivery motor drive control signal to the delivery motor 40 for performing a pick-up initial position movement.

That is, the disk loading motor 20 starts and stops disk loading when the disk loading motor driving control signal is provided from the microcomputer 50, and the sending motor 40 receives the feeding motor driving control signal from the microcomputer 50 when the disk loading motor driving control signal is provided. The optical pickup unit 30 is controlled to move to the pickup initial position of the disk 10.

Accordingly, the optical pickup unit 30 starts and stops moving to the pickup initial position of the disk 10 under the control of the delivery motor 40.

At this time, the disc loading end detection unit 60 detects whether the disc is finished loading and provides a disc loading end detection signal to the microcomputer 50, and the optical pickup initial position detection unit 70 is the optical pickup unit 30 When the optical pickup unit 30 detects the pickup initial position movement of the optical pickup unit 30, the optical pickup unit 30 detects the initial pickup position and provides the optical pickup initial position detection signal to the microcomputer 50.

Here, the disk loading end detection unit 60 is configured as a switch and is driven when a disk loading end is detected to provide a disk loading end detection signal to the microcomputer 50, and the optical pickup initial position detection unit 70 is configured as a switch. When the position of the lead-in area of the disk 10 is detected and the position of the lead-in area is detected, the drive is driven to provide the optical pickup initial position detection signal to the microcomputer 50.

Therefore, when the disc loading end detection signal is provided from the disc loading end detection unit 60, the microcomputer 50 stops driving the disc loading motor 20 to stop the disc loading operation of the disc loading motor 20, When the optical pickup initial position detection signal is provided from the pickup initial position detecting unit 70, the driving of the transmission motor 40 is controlled to stop the pickup movement of the optical pickup unit 30, and thus the transmission motor 40 controls the optical pickup. The pickup movement operation of the pickup unit 30 is stopped.

FIG. 2 is a flowchart for performing a method of shortening the playback start time of an optical disc player according to a preferred embodiment of the present invention, which will be described with reference to the block diagram shown in FIG.

When the disc 10 is loaded in the tray 200, the microcomputer 50 controls the drive of the disk loading motor 20 to start loading the disk in step 201, and proceeds to step 202. The drive of the delivery motor 40 is controlled to move the pickup initial position of the 30, that is, to the lead-in area of the disc 10.

Accordingly, the disc loading motor 20 starts loading the disc under the control of the microcomputer 50, and the delivery motor 40 moves to the initial position of pickup according to the control of the microcomputer 50. Control the operation.

At this time, the microcomputer 50 proceeds to step 203 to determine the disc loading end and pickup initial position movement order, that is, the microcomputer 50 is the disc loading end detection unit 60 and the optical pickup initial position detection unit The disk loading stop or the pickup movement stop is performed in accordance with the detection signal provided at 70.

That is, if the disc loading end detection signal is provided before the pickup initial position detection signal in step 203, the microcomputer 50 proceeds to step 204. When the disc loading end detection signal is provided later than the pickup initial position detection signal, the micom 50 is sent to step 207. Proceeds to step.

Therefore, the disc loading motor 20 stops loading the disc in step 204, and the microcomputer 50 proceeds to step 205 to determine whether the optical pickup unit 30 has moved to the pickup initial position, and to the pickup initial position. If it has moved, the flow proceeds to step 206 to stop the drive of the delivery motor 40 to stop the pickup movement.

In addition, when the optical pickup unit 30 moves to the initial position of pickup in step 207, the microcomputer 50 stops the pickup movement. When the disc loading is finished, the microcomb 50 stops driving the disc loading motor 20. Stop (steps 209 to 210).

On the other hand, when the pick-up movement to the disc loading and lead-in area is completed as described above, the microcomputer 50 proceeds to step 211 to perform a playback standby mode for reproducing the optical disc, that is, focusing servo and driving the disc at constant speed. The spindle motor is controlled, the TOC information is read from the lead-in area, and the file area in which the program is stored is searched.

As described above, in the method for shortening the playing time of the optical disc player according to the present invention, when the disc is loaded and the pickup initial position shift starts, the disc loading ends and the pickup initial position shift ends, the loading stop and the pickup initial sequence are completed according to the end sequence. By stopping the position movement, the playback start time can be shortened.

While the invention has been shown and described with respect to certain preferred embodiments, it will be apparent to those skilled in the art that various modifications, changes and omissions can be made without departing from the spirit and scope of the invention.

Claims (1)

A method of shortening the disc play start time of an optical disc player, which shortens the pickup initial position shift time of a newly loaded disc in the tray A disc loading and pickup initial position movement start step of loading the disc and starting the pickup initial position movement when the disc is mounted in the tray; Determining the disc loading end and pickup initial position movement order to determine the disc loading end and the pickup initial position movement order when the disc loading and pickup initial position movement starts; As a result of the disc loading end and pickup initial position movement sequence determination, if the disc loading end is performed before the pickup initial position movement, the disc loading is stopped and then the pickup movement is stopped, and the pickup initial position movement is less than the end of the disc loading. Performing a loading stop operation or a pickup movement stop for stopping the disc loading after the pickup movement is first performed; And And performing an optical disc play standby mode to perform an optical disc play standby mode when the disc loading stop operation or the pickup movement stop is finished.