JP2001084623A - Optical disk lens cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical disk lens cleaner capable of safe and sure cleaning by eliminating abnormal operation at the time of cleaning such as the optical lens of an optical disk player and a cleaning member are brought into contacted too closely or cannot be brought into contact sufficiently. SOLUTION: Inside a TOC area 2 of an optical disk 1, tracks more than one at least arbitrarily selected out of respective tracks of the optical disk 1 are changed into contents to ignore reading operation, a track A3 disabled in reading operation is located around the outer periphery of the TOC area 2, further, a cleaning member 4 is engaged inside the area of the track A3 disabled in reading operation and moreover, a track B5 capable of reading operation is located around the outer periphery of the track A3 disabled in reading operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk lens cleaner for removing dirt such as dust and dirt attached to an optical lens of an optical disk player. Incidentally, the optical disk in the present invention is a CD,
It includes all optical disks such as CD-ROM, video CD, DVD, and MD.

[0002]

2. Description of the Related Art Conventionally, as a cleaner for an optical lens in an optical disk player for reproducing or reading an optical disk, for example, a CD player, a CD-DA (Di
digital audio) track, and a cleaning member for an optical lens in which fibers or the like are implanted in one area of the track, or a TOC (T
There is a method in which an area of contents area is extended, and the optical lens cleaning member is engaged in the extended TOC area.

In the former method, a CD player is set so as to perform a predetermined skip operation between tracks by an operation of a user, and is engaged in one area between the tracks during the skip operation. The cleaning of the optical lens is performed by the cleaning member. In the latter method, when the CD player reads the TOC area, the optical lens is automatically cleaned by a cleaning member fixed in the extended TOC area.

[0004]

However, in the above method, a plurality of CD-DA tracks are arranged as in the former case, a cleaning member is engaged in one area of the track, and the track is skipped. In the case of the method of cleaning the optical lens, if the user neglects to execute the skip operation, the cleaning member cuts off the signal at the time of reading the signal in the track on which the cleaning member is engaged, causing a reading error. At this time, if the cleaning member contacts the optical lens excessively, there is a further problem that not only the cleaning cannot be performed normally but also the optical lens is damaged. In addition, the TOC area is extended as in the latter, and a cleaning member is engaged in the extended TOC area. When the CD player reads the TOC area, the cleaning member automatically engages in the extended TOC area. In the case of the method of cleaning the optical lens, the extended T
Since the reading of the OC area cannot be performed and the reading operation to the next track area cannot be performed, there is a problem that the optical lens and the cleaning member cannot sufficiently contact each other and the optical lens cannot be cleaned.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made to prevent abnormal operation during cleaning, such as excessive or insufficient contact between the optical lens of an optical disk player and a cleaning member. Lost
An object of the present invention is to provide an optical disk lens cleaner capable of performing cleaning safely and reliably.

[0006]

In the above-mentioned CD-DA track, a well-divided portion such as a start portion or an end portion of a music piece is divided by giving an index. The block divided by the index is called a track. Information signals such as the playing time and start position of the track are collected in the TOC area.

In order to solve the above problem, the optical disk lens cleaner of the present invention ignores the reading operation of at least one or more arbitrarily selected tracks among the tracks of the optical disk 1 in the TOC area 2 of the optical disk 1. Change to content. Then, a track A3 on which reading cannot be performed is arranged on the outer periphery of the TOC area 2, and a cleaning member 4 is engaged in the area of the track A3 on which reading cannot be performed. Further, the track A in which the reading operation is disabled
A readable track B5 is arranged on the outer circumference of the track No. 3.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing an embodiment showing the engagement of a cleaning member and the arrangement of tracks in an optical disk lens cleaner according to the present invention.

As shown in FIG. 1, the TOC of the optical disc 1
In the area 2, at least one or more tracks arbitrarily selected from the tracks of the optical disc 1 are changed to the contents of the read operation being ignored. For this reason, in the TOC area 2, the track information for ignoring the read operation and the track information for executing the read operation are divided. Then, a track A3 on which reading cannot be performed is arranged on the outer periphery of the TOC area 2, and a cleaning member 4 is engaged in the area of the track A3 on which reading cannot be performed.
The cleaning member 4 is a brush-like wiping member in which fibers or the like are planted, and is generally used in a conventional optical disk lens cleaner or the like. In addition, the width of the area of the track A3 where the reading operation cannot be performed needs to be wider than the width of the cleaning member 4.

Further, the track A in which the reading operation cannot be performed.
A readable track B5 is arranged on the outer circumference of the track No. 3.
In FIG. 1, a track A3 in which reading is disabled and a track B5 in which reading is enabled are provided one by one on the outer periphery of the TOC area 2, but the order and the number thereof are not limited.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a cross-sectional view of the optical disk lens cleaner of the present invention in a signal reading operation of the optical disk in the TOC area of the optical disk, and the optical lens 6 below the optical disk 1 is directly below the TOC area 2. At this time, the optical lens 6 only performs the operation of reading the information signal recorded in the TOC area 2 and is separated from the cleaning member 4 engaged in the area of the track A3 where the reading operation is not possible. No cleaning operation is performed.

Next, FIG. 3 is a cross-sectional view of the optical disk lens cleaner of the present invention when the cleaning operation of the optical lens is performed by the cleaning member. Here, the information signal in the TOC area 2 is changed so that the track A3 is ignored, and the track B5 is recorded as a normal information signal. At this time, the optical lens 6 starts a signal reading operation of the track A3 following the TOC area 2;
The read operation cannot be started due to the information of the read operation being ignored by the information signal in the OC area 2. Therefore, the optical lens 6 starts reading the track B5 by the next information signal.

This operation is performed instantaneously, and when skipping from the track A3 to the track B5, the cleaning member 4 in the area of the track A3 wipes the surface of the optical lens 6 to remove dust or dirt attached to the optical lens 6. Dirt such as dust can be removed. Since the signal reading operation is not performed on the track A3 where the reading operation is neglected, a signal reading error by the cleaning member 6 fixed in the track A3 area can be avoided. Note that the data signal may or may not be present in the track A3 area where the reading operation is ignored.

FIG. 4 is a cross-sectional view of the optical disk lens cleaner according to the present invention in a signal reading operation in a track area where the reading operation can be performed by the optical lens. After the skip movement is performed, the optical lens 6 can perform the reading operation. Move to track B5.

Here, the optical disc player is a music CD.
If you are a player or MD player, play music to notify the end of cleaning, etc., CD-ROM such as a personal computer
In the case of a drive, a screen or the like indicating the completion of cleaning is displayed, or the music is played to complete cleaning.

[0017]

As described above, if the optical disk lens cleaner of the present invention is mounted on a CD-ROM drive or MD player of a music CD player, personal computer, or the like, the optical lenses of various players and the cleaning member become excessively large. Without abnormal operation during cleaning such as contact or insufficient contact,
This has the effect that cleaning can be performed automatically and safely and reliably.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment showing engagement of a cleaning member and arrangement of tracks in an optical disc lens cleaner of the present invention.

FIG. 2 is a cross-sectional view of the optical disk lens cleaner of the present invention when an optical lens reads a signal in a TOC area of an optical disk.

FIG. 3 is a cross-sectional view of the optical disc lens cleaner according to the present invention during a cleaning operation of an optical lens by a cleaning member.

FIG. 4 is a cross-sectional view of the optical disk lens cleaner according to the present invention during a signal reading operation of a track area in which reading is possible by an optical lens.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Optical disk 2 TOC area 3 Track A 4 Cleaning member 5 Track B 6 Optical lens

Claims (1)

[Claims] 1. In a TOC area (2) of an optical disk (1), at least one or more tracks arbitrarily selected among tracks of the optical disk (1) are changed to contents for ignoring a read operation, A track A (3) that cannot be read is arranged around the TOC area (2), and a cleaning member (4) is engaged in the area of the track A (3) that cannot be read. An optical disk lens cleaner, wherein a track B (5) capable of performing a read operation is arranged on an outer periphery of the track A (3) in which a read operation is not possible.