KR0151461B1 - Method and apparatus for operating a disk tray - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc tray opening and closing apparatus and method for an optical disc reproducing apparatus, comprising: a first detection unit (40) for detecting whether a disc is placed on the disc tray (14), and a disc tray (14) close signal by a user The second sensing unit 30 for detecting a, the disk tray opening and closing switch 12 for generating an open / closed signal of the disk tray 14 by the user, the first sensing unit 20, the second sensing The microcomputer 40 generating a control signal for closing and opening the disk tray 14 according to the sensing signal of the unit 30 and the output signal of the disk tray opening / closing switch 12, and the control signal generated by the microcomputer 40. And a drive unit 50 for closing the disc tray 14 according to the present invention. When the disc tray is closed after the disc is mounted on the disc tray 14, the disc tray 14 is conveniently driven to close the disc tray. Can be closed It is to be.

Description

Disc tray switchgear and method for optical disc player

1 is a front view of a conventional conventional optical disc reproducing apparatus.

FIG. 2 is a perspective view of the conventional optical disk reproducing apparatus shown in FIG.

3 is a perspective view of an optical disc reproducing apparatus provided with a disc tray opening and closing apparatus of the optical disc reproducing apparatus according to the present invention.

4 is a block diagram of a disc tray opening and closing apparatus of an optical disc reproducing apparatus according to an embodiment of the present invention.

5 is a flowchart of a disc tray opening and closing method of an optical disc reproducing apparatus according to another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10: disc tray opening 12: disc tray opening and closing switch

14 disc tray 20 first detection unit

30: second detection unit 40: micom

50: drive unit 100, 300: optical disc playback device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc reproducing apparatus, and more particularly, to a disc tray opening and closing apparatus of an optical disc reproducing apparatus and a method thereof for facilitating loading of an optical disc in the optical disc reproducing apparatus.

Conventional optical disc playback devices include compact disk players (CDP), laser disk players (LDP) and compact disk graphic players (CDGP). Is a device capable of playing only video, and a lazy disk player and a compact disk graphic player are devices capable of simultaneously playing back video and audio. Such optical disc reproducing apparatuses reproduce images and / or audio recorded on the optical disc and output them through a screen and / or a speaker. There is an advantage to play.

1 is a front view of a conventional conventional optical disc reproducing apparatus 100, and FIG. 2 is a perspective view of this optical disc reproducing apparatus 100. As shown in FIG.

As shown in FIG. 1, the front portion of the optical disc reproducing apparatus 100 has a disc tray inlet (10) and a disc tray opening / closing switch (12) located at an arbitrary point below the disc tray inlet (10). Include.

When the user presses the disk tray open / close switch 12, as shown in FIG. 2, the disk tray 14 comes out through the disk tray inlet 10, after which the user again opens the disk tray open / close switch 12. Press () to enter the disc tray into the optical disc reproducing apparatus 100. That is, the disk tray 14 is operated in and out by pressing the disk tray opening and closing switch when the disk is loaded or the disk is removed or the disk is replaced.

By the way, as can be seen from FIG. 2, in the conventional optical disc reproducing apparatus 100, the disc tray opening / closing switch 12 is pressed for the purpose of replacing or removing the disc, and the disc tray 14 reproduces the optical disc. When the disc tray 14 is moved out of the device 100, the disc tray opening and closing switch 12 needs to be pressed once more to transfer the disc tray 14 into the optical disc reproducing apparatus 100. (14) It was very inconvenient for the user to operate the disc tray opening and closing switch 12.

Accordingly, the present invention has been made to solve such inconveniences, and an object of the present invention is to provide a disc tray opening and closing apparatus and method for an optical disc reproducing apparatus, which makes the disc tray opening and closing of the optical disc reproducing apparatus more convenient. It is.

According to one aspect for achieving the above object, the present invention, the disc tray opening and closing switch for opening and closing the disc tray for the purpose of mounting, replacing and removing the disc in the disc tray used in the optical disc reproducing apparatus In the disc tray opening and closing device having,

A first sensing unit mounted on the disc tray and detecting whether the disc is placed in the disc tray and generating a detection signal when the disc is placed;

A second sensing unit mounted on the disk tray and configured to detect a closed disk tray of a user;

A microcomputer generating the disc tray driving control signal for closing the disc tray when the first and second sensing signals are detected;

And a driving unit for driving the disk tray according to the disk tray driving control signal generated by the microcomputer.

According to another aspect for achieving the above object, the present invention provides a disc tray including a first sensing unit, a second sensing unit, and a disc tray opening and closing switch for operating a disc tray on which a disc used in an optical disc reproducing apparatus is mounted. In the disk tray opening and closing method of the switchgear,

(a) determining whether the disc tray is opened;

(b) if the disc tray is not opened in step (a), determining whether the disc tray open signal is input from the disc tray open / close switch, and opening the disc tray when the disc tray open signal is received. Wow;

(c) determining whether the disk tray close signal is input from the disk tray open / close switch when the disk tray is opened in step (a), and closing the disk tray when the disk tray close signal is input;

(d) If the disc tray close signal is not input in the step (c), it is determined whether a detection signal is generated in the first and second detection units, and thus the detection signals are detected in the first and second detection units. Closing the disk tray if it occurs.

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

3 is a perspective view of an optical disc reproducing apparatus 300 provided with a disc tray opening and closing apparatus of the optical disc reproducing apparatus according to the present invention.

As shown in the figure, the first sensing unit 20 and the second sensing unit 30 are mounted inside the disc tray 14.

Here, the first sensing unit 20 is located at any place in the disc tray 14 where a disc (not shown) is placed. Thus, when the disk is placed, it is detected. In addition, the first sensing unit 20 may be configured as a pressure sensor or a photo sensor. That is, it is possible to detect the pressure of the disk or to determine the presence or absence of the disk using infrared light.

In addition, the second sensing unit 30 is located at any place except the position where the disk is placed in the disk tray 14, and may be configured as a pressure sensor or a photo sensor. That is, after the user places the disc in the disc tray, the user places the hand at an arbitrary point on the second sensing unit 30, or if a certain pressure is applied to the second sensing unit 30, the second sensor unit 30 Infrared is used to detect this.

4 is a block diagram of a disc tray opening and closing apparatus of an optical disc reproducing apparatus according to an embodiment of the present invention.

As shown in FIG. 4, the present invention includes a first sensing unit 40 for detecting whether a disk is placed on the disk tray 14 and a second sensing unit for detecting a close signal of the disk tray 14 by a user. Detection of the unit 30, the disc tray opening / closing switch 12 for generating an open / closed signal of the disc tray 14 by the user, the first sensing unit 20 and the second sensing unit 30 The microcomputer 40 generating a control signal for closing and opening the disk tray 14 according to the signal and the output signal of the disk tray opening / closing switch 12 and the disk tray 14 according to the control signal generated from the microcomputer 40. It includes a drive unit 50 for closing).

In the present invention, the disc tray opening / closing switch 12 is used to open the disc tray 14 for the purpose of mounting or removing the disc (not shown). When the disc tray opening / closing switch 12 is pressed in the state in which the disc tray 14 is closed, the input signal is provided to the microcomputer 40, whereby the microcomputer 40 generates a control signal to the driving unit 50. Thereafter, the drive unit 50 is driven and thus the disc tray 14 is opened.

When the disk is placed on the open disk tray 14, the first sensing unit 20 detects this and generates a detection signal to the microcomputer 40. Thereafter, when the second detection unit 30, which is an infrared sensor, detects the disk tray 14 close signal from the user and generates it to the microcomputer 40, the microcomputer 40 closes the disk tray 14 with the driving unit 50. Generate a control signal for.

That is, the microcomputer 40 generates a control signal to the driving unit 50 only when both of the sensing signals of the first sensing unit 20 and the second sensing unit 30 are input. The reason for this is that when the user passes the disc over the first sensing unit 30 before positioning the disk in the process of positioning the disk in the disk tray 14, the second sensing unit 30 receives the microcomputer ( 40), which is to prevent this because the disc tray 14 may be closed before the disc is located.

As a result, when the microcomputer 40 receives the detection signal of the first detection unit 20 and then receives the detection signal of the second detection unit 30, the control signal for closing the disc tray 14 to the driver 50 is received. It is configured to generate. The drive unit 50 is composed of a motor drive unit and a motor.

5 is a flowchart of a disc tray opening and closing method of the optical disc reproducing apparatus according to another embodiment of the present invention.

The disc tray opening and closing method of the optical disc reproducing apparatus shown in FIG. 5 will be described below.

In step S10, the microcomputer 40 determines whether the disk tray 14 is open. In step S10, if the disc tray 14 is opened, step S10 proceeds to step S30, and if not, opens to step S20.

When the process proceeds from step S10 to step S20, in step S20 it is determined whether the open key signal of the disc tray opening / closing switch 12 is input. If the open key signal is not input in step S20, it is fed back to step S10. If the open key signal is input in step S20, the microcomputer 40 for the disk tray 14 open signal in step S60. The control signal is provided to the driver 50, and accordingly, the driver 50 opens the disc tray 14.

In addition, when the process proceeds from step S10 to step S30, it is determined whether a close key signal is input in step S30. When the close key signal is input in step S30, the driving unit 50 closes the disc tray 14 under the control of the microcomputer 40 in step S60. If the close key signal is not input in step S30, the flow proceeds to step S40.

In operation S40, the microcomputer 40 determines whether a detection signal is input from the first sensing unit 20. When the detection signal is input from the first sensing unit 20, that is, when it is determined that the disc is placed in the disc tray 14, the flow advances to step S50, and otherwise returns to step S30.

In step S50, the microcomputer 40 determines whether a detection signal is input from the second sensing unit 30. When the detection signal is input from the second sensing unit 30 in step S50, the process proceeds to step S60. Thereafter, in step S60, the disc tray 14 is driven to close the disc tray 14.

As described above, the present invention detects whether the disc is located at the disc mounting position of the disc tray 14 and then closes the disc tray by detecting a close signal of the disc tray 14 of the user using infrared rays. When the disk tray is closed after being mounted on the tray, the disk tray can be closed by conveniently driving the disk tray.

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

Claims (6)

Disc tray opening and closing apparatus having a disc tray opening and closing switch 12 for opening and closing the disc tray 14 for the purpose of mounting, replacing, and removing the disc in the disc tray 14 used in the optical disc reproducing apparatus. A first sensing unit (20) mounted on the disc tray (14) to detect whether the disc is placed on the disc tray (14) and to generate a detection signal; A second sensing unit (30) mounted to the disk tray (14) for detecting a close signal of the disk tray (14) by a user and generating the detection signal; A microcomputer 40 generating a disc tray 14 driving control signal for closing the disc tray 14 when the detection signals of the first sensing unit 20 and the second sensing unit 30 are received; And a drive unit for driving the disc tray (14) according to the disc tray (14) drive control signal generated by the microcomputer (40). The disk tray opening and closing apparatus of an optical disk reproducing apparatus according to claim 1, wherein the first detecting unit (20) comprises a pressure sensor or a photo sensor. 3. The disc tray opening and closing apparatus of an optical disc reproducing apparatus according to claim 2, wherein the first sensing unit (20) is located at any point of the disc mounting portion of the disc tray (14). The disk tray opening and closing apparatus of claim 1, wherein the second detection unit (30) comprises a pressure sensor or a photo sensor. 5. The disc tray opening and closing apparatus of an optical disc reproducing apparatus according to claim 4, wherein the second sensing unit (30) is located at any place except for the portion where the disc is mounted on the disc tray (14). Disc tray opening and closing apparatus including a first sensing unit 20, a second sensing unit 30, and a disc tray opening / closing switch 12 for operating a disc tray 14 on which a disc used in an optical disc reproducing apparatus is mounted. A method of opening and closing a disc tray, the method comprising: (a) determining whether the disc tray 14 is open (S10); (b) If the disc tray 14 is not opened in the step (a), it is determined whether the disc tray 14 open signal is input from the disc tray open / close switch 12 and the disc tray 14 Opening the disc tray when an open signal is received (S20, S60); (c) When the disc tray 14 is opened in step (a), it is determined whether the disc tray close signal is input from the disc tray open / close switch 12, and when the disc tray close signal is input, the disc tray Closing steps S30 and S60; (d) If the disc tray close signal is not input in step (c), it is determined whether a detection signal is generated in the first sensing unit 20 and the second sensing unit 30, and thus the first sensing unit 20 is detected. And closing (S40, S50, S60) the disc tray (14) when a detection signal is generated in the second sensing unit (30).