KR19980058792A - How to control optical disc loading in an optical disc player - Google Patents

Abstract

The present invention provides a method for controlling the loading of the optical disc and the feeding operation of the pickup unit in order to prevent excessive power consumption caused by simultaneous loading of the optical disc and feeding operation of the pickup unit in the optical disc player. In this regard, driving the pick-up transfer unit to transfer the pickup, determining the input of the disc loading key, and when the disc loading key is input, stop driving of the pick-up transfer unit and then drive the optical disc drive unit. Loading the disc, and after the loading of the optical disc is completed, resuming driving of the pickup transport unit to move the pickup unit to an initial position on the loaded optical disc.

Description

How to control optical disc loading in an optical disc player

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk player, and more particularly, to driving a feeding device of a pick-up unit for loading an optical disk and performing recording / reproducing from the loaded optical disk. Relates to a device.

Conventional optical disc reproducing apparatus, i.e., optical disc player, includes a compact disc player (CDP: compact disk player), a laser disk player (LDP) and a compact disk graphic player (CDGP). In general, a compact disc player is a device capable of playing only voice, and a laser disc player and a compact disc graphic player are devices capable of simultaneously playing back video and audio.

In addition, recently, a video compact disc player capable of playing video and audio on a disc having the same size as a general compact disc has been developed and used.

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, resulting in better image quality and It can be reproduced with sound quality, has no noise due to irregular reproduction and modulation, has very low distortion, no ghost, random access, etc. There is a trend.

Such an optical disc player has a loading mechanism for loading an optical disc on a turn table, and a pick-up unit that scans a laser beam toward the loaded optical disc and reads information through the reflected beam therefrom. and a feeding mechanism for slidingly conveying the up unit in the radial direction of the optical disk. With the loading of the optical disk and the feeding of the pickup unit completed, the pickup unit is slid by the feeding device about the optical disk seated on the turntable which is rotationally driven by the spindle motor, that is, in the radial direction of the optical disk. The regeneration is performed by being transferred.

Such an optical disc player of the prior art is characterized in that the optical disc is loaded by the loading mechanism as described above when the optical disc is reproduced with the tray of the optical disc being ejected, and the pickup unit of the pickup unit to the optical disc is caused by the feeding mechanism. The feeding operation is being performed at the same time. In this case, since the current required for driving the loading mechanism and the feeding mechanism of the optical disc player is simultaneously supplied, there is a problem that the power consumption increases considerably in proportion to the square of the supply current amount.

Therefore, the present invention provides an apparatus for loading and feeding an optical disc player, which can reduce power consumption by sequentially loading an optical disc and feeding a pickup unit during reproduction of the optical disc.

According to the present invention for achieving the above object, driving the pickup transfer unit to transfer the pickup unit, determining the disc loading key input in the step of transferring the pickup unit, the disc loading key is input Stopping the driving of the pickup transport unit; driving the optical disk drive unit to load the optical disk to a playback position; and after the loading of the optical disk is completed, driving of the pickup transport unit resumes the pickup. There is provided an optical disc loading control method of an optical disc player, comprising the steps of placing a unit in an initial state on the loaded optical disc.

1 is a block diagram of an optical disc loading control apparatus of an optical disc player according to a preferred embodiment of the present invention.

2 is a flowchart for explaining the operation performed by the optical disc loading control apparatus of the optical disc player according to the preferred embodiment of the present invention.

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

10: key input unit 20: control unit

30: pickup transfer unit 40: transfer detection unit

50: pickup unit 60: disc drive unit

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

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

Referring to Fig. 1, there is shown a block diagram of an apparatus for controlling loading and feeding of an optical disc player according to a preferred embodiment of the present invention. As shown, the control device of the present invention includes a key input unit 10 for inputting a drive mode selection signal of a user to an optical disc player, and a pickup transfer unit 30 and a disc according to the selection mode provided from the key input unit 10. It has a control unit 20 for generating a control signal to the drive unit 60, and a disk tray for receiving the optical disk under the control of the control unit 20, moving the disk tray to a position corresponding to the drive mode selected by the user and loading A transfer unit consisting of a disc drive unit 60 for making a pickup, a pickup transfer unit 30 for transferring a pickup unit 50 for reproducing a signal to an optical disc, and a limit switch for detecting whether the pickup transfer unit 30 is driven to an accurate position. The sensing unit 40 is provided.

According to the present invention, the control unit 20 implemented as a microcomputer has a disc drive unit first selected according to a driving mode selected by the user through the key input unit 10, for example, a playback mode, in a state where the disc tray of the disc drive unit 60 is ejected. After moving the 60 to a predetermined position and loading the optical disc on the disc tray, the pickup unit 50 is programmed to perform a reproducing operation on the optical disc loaded by the pickup transfer section 30. Hereinafter, referring to FIG. 2, a method of controlling the feeding operation of the pickup conveying unit for the optical disc loading and the feeding of the pickup unit by the disc drive unit of the optical disc player executed according to the present invention will be described.

In the control method of the present invention, the eject mode is selected by the key input unit 10 (step 71), the optical disc player performs the eject operation according to the selected eject mode (step 73), and the eject operation is completed (step 75). After that, the control unit 20 first starts a feeding operation of controlling the pickup transfer unit 30 to move the pickup unit 50 to the initial position (step 79).

In step 81, the control unit 20 determines whether the pick-up transfer unit 30 has been transferred to the initial position for regeneration. This determination is achieved by the pick-up transfer unit 30 contacting the transfer detection unit 40 configured as a limit switch so that a switch-on signal is provided from the transfer detection unit 40 to the control unit 20. Since the state of the feed after the completion of ejection is ejected during the playback of a particular track, no switch-on signal will be generated from the feed detector 40.

In step 83, it is checked whether the disk loading key is input from the key input unit 10 during the feed transfer. In this step, if the disc loading key is input, the control unit 20 stops driving of the pickup transfer unit 30 (step 85), otherwise, the feeding drive of the pickup transfer unit 30 is transferred from the transfer detection unit 40. Continue until the switch-on signal is generated.

Through the above-described process, the control unit 20 drives the disc drive unit 60 to move the disc tray to load the optical disc on the tray to the playback position (step 87). If it is determined that the loading of the optical disc is completed (step 89), the flow returns to step 79 to continue the transfer operation of the pickup unit 50 by the pickup transfer unit 30, thereby initializing the pickup unit on the loaded optical disc. Position it. The completion of the transfer operation is detected by the transfer detector 40 during the operation of the pickup transfer unit 30, so that the loading of the optical disc and the feeding operation of the pickup unit are sequentially performed.

As described above, when the play mode is selected when the disc tray is ejected, the optical disc is sequentially loaded, and then the pickup unit performs the feeding operation of the pickup unit. Power consumption can be prevented.

Claims (1)

An optical disc loading control method of an optical disc player having a loading unit for loading an optical disc and a pickup transfer unit for transferring a pickup unit for reproducing the optical disc, Driving the pickup transfer unit to transfer the pickup unit; Determining a disc loading key input in the step of transferring the pickup unit; When the disc loading key is input, stopping driving of the pickup transport unit; Driving the optical disc drive unit to load the optical disc to a playback position; And after the loading of the optical disc is completed, resuming driving of the pickup transfer unit to position the pickup unit in the initial state on the loaded optical disc.