KR20050036362A - Method for controlling optical pick up slide in - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical pickup slide-in control method, wherein when an optical disc is inserted into various optical disc devices such as a CD driver or a DVD driver, a lead-in of the optical disc is inserted. By allowing optical pickup to access a specific area such as a (lead-in) area more quickly and without a full slide in operation, a user can perform a desired operation after the optical disc insert. It is a very useful invention to be able to shorten the time required to the point of time more efficiently, and also to prevent operation errors caused by power off and the like.

Description

Optical pickup slide-in control method {Method for controlling optical pick up slide in}

According to the present invention, when an optical disc is inserted into various optical disc devices such as a CD driver or a DVD driver, a specific area such as a lead-in area of the optical disc is inserted. The present invention relates to an optical pickup slide-in control method for allowing an optical pickup to be normally and quickly accessed.

In a typical optical disc device, when a new optical disc is inserted, a series of full slide in operations are performed to allow an optical pickup to normally access a specific area of the optical disc, for example, a lead-in area. .

For example, as shown in FIG. 1, when a user requests an optical disc eject operation while reading and playing video and audio data recorded in a data area of an optical disc, the optical disc apparatus is currently reproducing the optical disc. The eject operation to discharge the outside is performed.

Then, when a new optical disc is inserted into the apparatus, the optical disc apparatus replaces the optical pickup 20 at any position. The optical disk is continuously moved in the inner circumferential direction. When the optical pickup 20 moves in the inner circumference, the optical pickup 20 comes into contact with the limit switch (Limit_SW) 10 fixed at a specific position.

On the other hand, when the limit switch 10 is turned on in contact with the optical pickup as described above, in the optical disk apparatus, the optical pickup 20 moves the optical pickup 20 by a predetermined position in the circumferential direction so that the optical pickup 20 has a specific area of the optical disk, For example, the lead-in area can be normally accessed.

In addition, after the navigation information recorded in the lead-in area is downloaded into the device, the navigation information is referred to to provide various operations and functions desired by the user.

However, in the conventional optical disc apparatus, when a new optical disc is inserted as described above, the optical pickup 20 is moved in the inner circumferential direction until the limit switch 10 is turned on, and then again in the circumferential direction by a predetermined position. Since the full slide-in operation is repeatedly performed every time, there is a problem that it takes a long time from the optical disc insert to the time when the user can perform the desired operation.

Accordingly, the present invention has been made to solve the above problems, and when an optical disc is inserted into an optical disc device, a specific area such as a lead-in area of the optical disc is selected. An object of the present invention is to provide an optical pickup slide-in control method for more quickly accessing normally.

The optical pickup slide-in control method according to the present invention for achieving the above object comprises a step of moving the position of the optical pickup to a predetermined position by performing a full slide-in operation when ejecting the optical disk; And after the completion of the optical disc ejection operation, accessing a specific area of the optical disc by using the optical pickup moved to the predetermined position when inserting a new optical disc.

In addition, the optical pickup slide-in control method according to the present invention, in the step of ejecting the optical disk, the first step of storing the current disk recording position information that the optical pickup is accessing in the apparatus; And after completing the optical disc ejection operation, moving the optical pickup to a predetermined position corresponding to a specific area of the optical disc by referring to the stored recording position information upon inserting a new optical disc. ,

In addition, the optical pickup slide-in control method according to the present invention, at the time of inserting the optical disk, the first step of searching and confirming the eject information stored in the device; And two steps for selectively performing a full slide-in operation based on the identified eject information.

Hereinafter, a preferred embodiment of the optical pickup slide-in control method according to the present invention will be described in detail with reference to the accompanying drawings.

2 and 3 illustrate an embodiment and an operation flowchart of the optical pickup slide-in control method according to the present invention. In the optical disk apparatus to which the present invention is applied, the full slide is ejected at the time of ejecting the optical disk. When a full slide in operation is performed in advance and a new optical disc is inserted thereafter, a specific area such as a lead-in area of the optical disc is quickly accessed without a separate full slide-in operation.

For example, as illustrated in FIGS. 2 and 3, when a user inputs an optical disk eject key (S11) while reading and playing video and audio data recorded in a data area of the optical disk (S10). In the optical disk device, a full slide-in operation is performed, and a flag for indicating whether the full slide-in operation is normally completed, for example, FSI_Flag is set to '1', to a memory (not shown) in the device. It is stored (S12).

On the other hand, when the full slide-in operation is not normally completed due to power off, the FSI_Flag is '0' and is stored in the memory in the device, and after the optical disc eject operation is completed (S13). It will monitor whether a new optical disc is inserted.

On the other hand, when a new optical disc is inserted (S14), the optical disc device searches for and checks the FSI_Flag stored in the memory. As described above, when the FSI_Flag is stored as '0', when the optical disc is ejected, the full slide-in After determining that the operation is not normally completed, a series of full slide-in operations as described above with reference to FIG. 1 are performed, and the FSI_Flag is set to '1' and stored (S17).

When the FSI_Flag stored in the memory is set to '1', it is determined that the full slide-in operation is normally completed when ejecting the optical disc, and the optical pickup 20 is not performed without performing a separate full slide-in operation. By using this, a specific area of the optical disc, for example, a lead-in area, can be accessed quickly (S18).

After the navigation information and the like recorded in the lead-in area are downloaded into the device, the navigation information is provided with reference to the navigation information to provide various operations and functions desired by the user (S19).

Accordingly, the time required from the optical disc insert to the time when the user can perform a desired operation can be shortened more efficiently, and the full slide-in performed in advance when the optical disc is ejected ( If an error occurs in the Full Slide In) operation, the full slide-in operation is performed again at the time of inserting the optical disc, thereby performing a normal access operation.

4 and 5 show another embodiment and an operation flowchart of the optical pickup slide-in control method according to the present invention. In the optical disk apparatus to which the present invention is applied, the optical disk is ejected at the time of ejecting the optical disk. The current recording position information and track pitch information of the optical disc that the pickup is accessing are stored in a memory (not shown), and when a new optical disc is inserted thereafter, the optical disc of the optical disc is operated without additional slide in operation. By performing a track jump operation to a position corresponding to the lead-in area, the lead-in area can be accessed more quickly.

For example, as illustrated in FIGS. 4 and 5, when a user inputs an optical disc eject key while reading and playing video and audio data recorded in a data area of the optical disc (S30) (S31). In the optical disc apparatus, the current recording position information and track pitch information of the optical disc are stored in a memory, and a flag for indicating whether the recording position information and track pitch information has been normally stored, for example, PPM_Flag is set to '1'. It is set to, and stored in the memory in the device (S32).

On the other hand, when the operation of storing the recording position information and the track pitch information is not completed normally due to power off, the PPM_Flag is '0' and is stored in the memory in the device, and then the optical disc eject operation. After this is completed (S33), it is monitored whether a new optical disk is inserted.

On the other hand, when a new optical disk is inserted (S34), the optical disk apparatus searches for and checks the PPM_Flag stored in the memory. As described above, when the PPM_Flag is stored as '0', recording position information when ejecting the optical disk, And determining that the operation of storing the track pitch information has not been normally completed, a series of full slide-in operations as described above with reference to FIG. 1 are performed (S37).

When the PPM_Flag stored in the memory is set to '1', it is determined that the operation of storing the recording position information and the track pitch information is normally completed during ejection of the optical disc, without performing a separate full slide-in operation. After the optical pickup 20 performs a series of target track operations and track jump operations to track jump a specific area of the optical disc, for example, a lead-in area, The lead-in area of the optical disc is quickly accessed (S38).

After the navigation information recorded in the lead-in area is downloaded into the device, the navigation information is referred to to provide various operations and functions desired by the user (S39).

As a result, the time required from the optical disc insert to the time when the user can perform a desired operation can be shortened more efficiently, and at the time of ejecting the optical disc, the current recording position information and If an error occurs in the operation of storing the track pitch information, the full slide-in operation is performed again at the optical disc insert time point, thereby making a normal access operation.

For reference, the slide-in control method according to the present invention can be controlled by software operation by a microcomputer, a servo controller, or the like included in the optical disk device, the above-described preferred embodiment of the present invention, for the purpose of illustration As disclosed by the person skilled in the art, within the spirit and scope of the present invention disclosed in the appended claims, it will be possible to improve, change, replace or add other various embodiments.

In the optical pickup slide-in control method according to the present invention, which is constructed and constructed as described above, when an optical disc is inserted into various optical disc devices, a specific area such as a lead-in area of the optical disc is pulled out. By allowing optical pickup to access normally and quickly without the need for a full slide in operation, the time required from the optical disc insert to the time when the user can perform the desired operation can be shortened more efficiently. In addition, it is a very useful invention that can prevent the operation error caused by the power off.

1 illustrates an embodiment of a general optical pickup slide-in control method,

2 and 3 illustrate an embodiment and an operation flowchart of an optical pickup slide-in control method according to the present invention;

4 and 5 illustrate another embodiment and an operation flowchart of the optical pickup slide-in control method according to the present invention.

※ Explanation of code for main part of drawing

10: limit switch 20: optical pickup

Claims (11)

Performing a full slide-in operation when ejecting the optical disc to move the position of the optical pickup to a predetermined position; And And a step of accessing a specific area of the optical disc by using the optical pickup moved to the predetermined position when the new optical disc insert is completed after the optical disc ejection operation is completed. The method of claim 1, In the first step, if the full slide-in operation is normally completed, the corresponding flag set to a predetermined value corresponding to the optical pickup slide-in control method. The method of claim 2, In the second step, after determining whether the optical pickup has been normally moved to a predetermined position based on the flag value, the optical disk may be subjected to a full slide-in operation or without a full slide-in operation according to the determination result. And a lead-in area of the optical pickup slide-in control method. At the time of ejecting the optical disc, storing the current disc recording position information that the optical pickup is accessing in the apparatus; And And completing the optical disc ejection operation and moving the optical pickup to a predetermined position corresponding to a specific area of the optical disc by reading the stored recording position information upon inserting a new optical disc. Pick-up slide-in control method. The method of claim 4, wherein In the first step, if the recording position information is normally stored, the corresponding flag set to a predetermined value corresponding to the optical pickup slide-in control method. The method of claim 5, In the second step, the optical pickup slide-in control method may include performing a full slide-in operation or moving the optical pickup to a predetermined position corresponding to the lead-in area of the optical disk according to the flag value. The method of claim 4, wherein In the step 2, the track jump operation to a predetermined position corresponding to the lead-in area of the optical disc is performed by referring to the stored recording position information. The method of claim 4, wherein And storing track pitch information together with the recording position information, and reading the track pitch information together with the stored recording position information upon completion of the optical disc eject operation and inserting a new optical disc. Control method. A step of searching for and confirming eject information previously stored in the apparatus at the time of inserting the optical disc; And And a step of selectively performing a full slide-in operation based on the identified eject information. The method of claim 9, And the eject information is a flag value for identifying whether the optical pickup is normally moved to a predetermined position by performing a full slide-in operation when ejecting the optical disk. The method of claim 9, And the eject information is information on the current disc recording position and track pitch that the optical pickup is accessing when ejecting the optical disk.