KR20110084595A

KR20110084595A - Apparatus and method for controlling record in optical disc drive

Info

Publication number: KR20110084595A
Application number: KR1020100004220A
Authority: KR
Inventors: 양중수
Original assignee: 주식회사 히타치엘지 데이터 스토리지 코리아
Priority date: 2010-01-18
Filing date: 2010-01-18
Publication date: 2011-07-26

Abstract

An apparatus and method for controlling recording in an optical disc drive according to the present invention is, for example, in various types of optical disc drives used in connection with a host such as a personal computer, when an optical disc is mounted on a tray where an optical disc is inserted. When the temperature is detected and the detected temperature of the optical pickup is a first reference temperature set in advance, the tray is automatically ejected to lower the temperature of the optical pickup, and the detected temperature of the optical pickup is determined in advance. If the second reference temperature is set to, the recording speed is automatically adjusted downward, thereby preventing the recording error of incorrectly recording data at a high speed at a high temperature of the optical pickup, and automatically ejecting the tray. Therefore, the temperature of the optical pickup can be reduced efficiently.

Description

Apparatus and method for controlling record in optical disc drive}

The present invention relates to a recording control apparatus and method applied to various types of optical disc drives (ODDs) used for connection to a host such as, for example, a personal computer.

In general, various types of optical disc drives (ODDs) for recording or reproducing data on optical discs such as CDs, DVDs, BDs, and the like are widely used.

On the other hand, in the optical disk drive (ODD), for example, as shown in Figure 1, the loading motor for ejecting the tray (Tray) on which the optical disk is mounted to the outside (Insert) (Inner) LM: Loading Motor is included.

Further, in the optical disc drive, for example, the data recording speed is increased to 8 times speed, 16 times speed, 32 times speed, etc., and the temperature of the optical pickup is set to a preset optical pickup limit temperature (eg, OPU Limit Temp = 65). ° C), the maximum recording speed is adjusted downward to prevent an error from occurring in the data recording operation.

For example, while recording data at 32x speed, when the temperature of the optical pickup is 65 degrees preset, the recording speed is lowered from 32x to 16x, so the temperature of optical pickup is abnormally high. In this case, a recording error that incorrectly records data at high speed is prevented.

However, even if the recording speed is lowered as described above, since the temperature of the optical pickup cannot be lowered, it is necessary to adjust the downward adjusted recording speed lower or temporarily stop the data recording operation, so that the user does not want to lower the speed. There is a problem that the write operation is performed or the data write operation is stopped.

For example, when the tray on which the optical disc is seated is inserted, the temperature of the optical pickup is detected, and if the first reference temperature is set in advance, the tray is automatically ejected to detect the temperature of the optical pickup. It is an object of the present invention to provide a recording control apparatus and method in an optical disk drive for lowering a temperature and enabling the recording double speed to be automatically adjusted downward if the detected temperature of the optical pickup is a second reference temperature set in advance.

A recording control method in an optical disc drive according to the present invention includes: a first step of setting a first reference temperature for automatically ejecting a tray and a second reference temperature for automatically downwardly adjusting a recording speed; And when the temperature of the optical pickup reaches the first reference temperature, automatically ejecting the tray, and when the temperature reaches the second reference temperature, automatically adjusting the recording double speed downward.

The first reference temperature may be set to be lower than the second reference temperature by a predetermined temperature.

In the second step, the temperature of the optical pickup is detected, and when the first reference temperature is reached, the tray is automatically ejected and a corresponding guidance message is displayed.

The method may further include displaying a message for guiding downward adjustment of the recording speed when the user forcibly inserts the tray while the tray is automatically ejected.

In addition, the recording control apparatus in the optical disk drive according to the present invention comprises: a loading motor for ejecting or inserting a tray; A temperature sensor for detecting a temperature of the optical pickup; Setting a first reference temperature for automatically ejecting the tray and a second reference temperature for automatically down-regulating a recording speed, and when the temperature of the optical pickup reaches the first reference temperature, the tray Is automatically ejected, and when the second reference temperature is reached, a control unit for automatically adjusting the recording speed down, characterized in that it is configured,

The control unit may detect the temperature of the optical pickup and automatically eject the tray when the first reference temperature is reached, and display a corresponding guidance message through an interface with a host. ,

The control unit may display a message for guiding down-regulation of recording speed through an interface with a host when the user forcibly inserts the tray while the tray is automatically ejected.

1 illustrates an embodiment of ejecting and inserting a tray in a general optical disc drive.
2 illustrates an embodiment in which a recording speed is adjusted downward in a general optical disc drive.
3 shows a configuration of an embodiment of an optical disk drive to which the present invention is applied;
4 shows an operation flowchart of an embodiment of a write control method in an optical disc drive according to the present invention;
5 and 6 illustrate an embodiment of guide messages displayed according to the present invention.

Best Mode for Carrying Out the Invention Preferred embodiments of a recording control apparatus and method in an optical disc drive according to the present invention will be described in detail with reference to the accompanying drawings.

The recording control apparatus and method according to the present invention is applied to an optical disc drive used for connection to a host such as a personal computer, or is included in one independent device such as a DVD-Recorder or the like. Can be applied to

FIG. 3 shows the configuration of an embodiment of an optical disk drive to which the present invention is applied. The optical disk drive 100 used in connection with a host 300 such as a personal computer includes an optical disk 10 and a loading motor 11. , Spindle motor 12, servo unit 13, optical pickup 14, temperature sensor 15, RF processor 16, digital signal processor 17, LD driver 18, microcomputer 19, memory 20, and the interface unit 21 and the like are included.

Meanwhile, as described above with reference to FIG. 1, the optical disc 10 is inserted into or ejected from the inside of the tray while the insert and the eject operation are performed. Is made by the rotation operation of the loading motor 11.

In addition, in the microcomputer 19, when the tray on which the optical disk 10 is seated is inserted, the temperature of the optical pickup detected by the temperature sensor 15 is compared with a preset reference temperature. For example, a first reference temperature for automatically ejecting the tray and a second reference temperature for automatically down-regulating the recording double speed are set in advance.

For example, as described above with reference to FIG. 2, assuming that an optical pickup limit temperature (OPU Limit Temp) for down-regulating a recording double speed is a second reference temperature, the first reference temperature is the second reference temperature. The temperature may be set to a temperature lower by a predetermined temperature (eg, −5 ° C.), for example, the first reference temperature may be set to 60 ° C., and the second reference temperature may be set to 65 ° C. .

If the temperature of the optical pickup detected by the temperature sensor 15 is the first reference temperature, the microcomputer 19 operates the servo unit 13 to control the loading motor 11. By driving, the tray is ejected to the outside to lower the temperature of the optical pickup.

On the other hand, if the temperature of the optical pickup detected by the temperature sensor 15 is the second reference temperature, by operating the servo unit 13 to drive the spindle motor 12 at a low speed, the data The recording speed is adjusted downward.

On the other hand, when the tray is ejected to the outside, the interface operation with the host, so that the corresponding guidance message is displayed, and if the tray is forcibly inserted by the user, whether or not to start the recording operation A guide message for inquiring is displayed, which will be described in detail below.

4 is a flowchart illustrating an embodiment of a recording control method in the optical disk drive according to the present invention. For example, in the microcomputer 19, a first reference temperature for performing an automatic tray eject operation and In operation S10, the second reference temperature for automatically down-regulating the recording double speed is set.

In addition, when the tray on which the optical disc is seated is inserted into the microcomputer 19, a series of initial servo operations are performed (S11), and the temperature of the optical pickup detected by the temperature sensor 15 is obtained. It is compared with the first reference temperature and the second reference temperature (S12).

Meanwhile, as a result of the comparison, when the temperature of the optical pickup is a first reference temperature preset for performing automatic tray ejection, the microcomputer 19 operates the servo unit 13 to control the loading motor. By rotating (11) counterclockwise, the tray is automatically ejected to the outside.

In addition, the interface operation with the host is performed so that the guidance message for the automatic eject operation is displayed on the monitor screen connected to the host (S14). For example, as shown in FIG. 5. In addition, the guide message may be displayed along with a message indicating that the automatic tray eject mode (Auto Tray Eject Mode), to wait for a while to lower the temperature of the optical pickup.

On the other hand, in the microcomputer 19, when the detected temperature of the optical pickup is a second reference temperature set in advance to adjust the recording speed down (S15), the user performs a recording operation requested, for example As described above with reference to FIG. 2, the maximum recording speed of 32 times is adjusted to 16 times (S16).

In addition, in the microcomputer 19, after the tray is automatically ejected, if the temperature of the optical pickup detected by the temperature sensor 15 is detected to be lower than the first reference temperature, the servo unit 13 By controlling the operation, by rotating the loading motor 11 clockwise, the tray is automatically inserted into the tray.

On the other hand, after ejecting the tray automatically, when the user forcibly inserts the tray (S17), the microcomputer 19 performs an interface operation with the host, a guide message for the insert operation, For example, as shown in FIG. 6, the guide message includes a message indicating that the user tray is in a user tray insert mode. Even if the temperature of the optical pickup is high, a message may be displayed asking whether to start the recording operation.

In the microcomputer 19, when the recording operation is performed according to a user's request, the maximum recording speed is adjusted downward (S19), so that the data recording operation is performed (S20). In addition, it is possible to prevent a recording error that incorrectly records data at a high speed in a state, as well as to automatically eject the tray, thereby effectively lowering the temperature of the optical pickup.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

10: optical disc 11: loading motor
12: spindle motor 13: servo unit
14 optical pickup 15 temperature sensor
16: RF processor 17: digital signal processor
18: LD driver 19: Microcomputer
20: memory 21: interface unit
100: optical disk drive 300: host

Claims

Setting a first reference temperature for automatically ejecting the tray and a second reference temperature for automatically down-regulating the recording double speed; And
And when the temperature of the optical pickup reaches the first reference temperature, automatically ejecting the tray, and when the temperature reaches the second reference temperature, automatically adjusting the recording double speed downward. How to control recording in

The method of claim 1,
And the first reference temperature is set to be lower than the second reference temperature by a predetermined temperature.

The method of claim 1,
In the second step, when the temperature of the optical pickup is detected, when the first reference temperature is reached, the tray is automatically ejected and a corresponding guidance message is displayed. .

The method of claim 1,
And displaying a message for guiding downward adjustment of the recording speed when the user forcibly inserts the tray in the state of automatically ejecting the tray.

A loading motor for ejecting or inserting the tray;
A temperature sensor for detecting a temperature of the optical pickup;
Setting a first reference temperature for automatically ejecting the tray and a second reference temperature for automatically down-regulating the recording speed,
And a control unit for automatically ejecting the tray when the temperature of the optical pickup reaches the first reference temperature, and automatically adjusting the recording double speed when the second reference temperature is reached. Recording control device in optical disk drive.

6. The method of claim 5,
And the first reference temperature is set lower than the second reference temperature by a predetermined temperature.

6. The method of claim 5,
The control unit detects the temperature of the optical pickup and, when the first reference temperature reaches, automatically ejects the tray and displays a corresponding guidance message through an interface with a host. Recording control device in the drive.

6. The method of claim 5,
In the optical disc drive, when the user forcibly inserts the tray while the tray is automatically ejected, the controller displays a message for guiding downward adjustment of the recording speed through an interface with the host. Record control device.