JP2001216615A - Cleaning disk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize an easy and accurate cleaning operation by preventing a function breakdown caused by the carelessness or the like of a user in a cleaning disk for cleaning off dusts or the like stuck to the lens, the magnetic head or the like of an optical disk driving device. SOLUTION: In a cleaning disk 1 having a read-in area 15, a program area 17 and a UTOC area 16, and provided to clean off dusts or the like stuck to the lens 13 or the magnetic head 9 of the optical pickup 12 of an optical disk driving device, a plurality of tracks disabled from information rewriting/adding in the program area are disposed, a proper message signal such as voice guidance or the like regarding cleaning work is recorded in a track 17b positioned in an outer peripheral side among the plurality of tracks of the program area, a lens cleaning member is disposed in a track 17a positioned inside the track having the message signal recorded therein.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel cleaning disk for cleaning and removing dust and the like adhering to a lens or a magnetic head of an optical pickup of an optical disk drive.

[0002]

2. Description of the Related Art Conventionally, a cleaning disk for cleaning and removing dust and the like adhering to a lens or a magnetic head of an optical pickup of an optical disk drive device is conventionally rotated by rotating a cleaning sheet having the same shape as a normal recording / reproducing disk. Generally, the lens and the magnetic head are brought into contact with each other to clean and remove dust and the like adhering to the lens and the magnetic head.

That is, for cleaning the magnetic head, a disk coated with an abrasive or a water-absorbent disk impregnated with a cleaning liquid is used as a cleaning member.
For cleaning the lens, a brush or the like protruding from a surface facing the disk is used as a cleaning member.

Further, there is provided an optical disc drive apparatus using a magneto-optical disc, which uses both an optical pickup and a magnetic head for writing and reading information to and from a disc, for example, a so-called mini disc (hereinafter abbreviated as MD). A magnetic head and an optical pickup are used as information recording means.In order to clean the magnetic head and the optical pickup lens, both the magnetic head and the optical pickup lens cleaning disks are separately provided. It had to be used, and the cleaning operation was complicated.

In order to be able to clean the magnetic head and the lens of the optical pickup at the same time, for example, as described in JP-A-3-16070, a cleaning member for the lens and a cleaning member for the magnetic head are combined into one cleaning member. Some are provided on disks.

However, in the cleaning disk described in the above publication, a lead-in area located on the innermost side of the cleaning disk, a UTOC area outside the lead-in area, and a program area which is a recording area for writing information are referred to. It is difficult to select the position where the cleaning means such as a brush is provided, and depending on the arrangement of the two cleaning members as foreign substances, a signal reading error or the like may occur and the cleaning operation may not be performed.

When the lens is cleaned by the cleaning disk, the lens (optical pickup) reads the information stored on the optical disk, and the position of the lens is changed to the position of the cleaning means (brush, etc.). It is when they intersect. Therefore, usually, a cleaning unit is provided outside the lead-in area, and when the optical pickup moves to read information in the UTOC area or the program area, the position of the lens and the cleaning unit are crossed to perform cleaning. It has become.

In the UTOC area, when information is written in the program area, the information is automatically written, and its contents and the number of times of repeated reading are also recorded. Since the size is also 1 to 2 mm in width, the start position of the program area is inevitably determined by the size of the UTOC area (actually, the start position of the program area is written in the lead-in area. ). If the cleaning means is to be provided between the end position of the lead-in area and the start position of the program area, the location of the cleaning means will be only the UTOC area. 1
A UTOC area with a width of ２2 mm is too narrow.

Therefore, as described in Japanese Patent Application Laid-Open No. H11-45417, information relating to the start position of the program area to be recorded in the lead-in area is recorded so as to be outside the normal range, and the apparent UTOC area is recorded. And a cleaning means is provided in the UTOC area outside the start position of the expanded UTOC area,
There is an optical disk drive device in which information is written to or read from a disk so that when the lens moves to a program area, the position of the lens is crossed with the cleaning means so that cleaning is performed.

However, M standardized in the above publication
In the D format, there is a rule that the start position of the program area is within 50 clusters from the end position of the lead-in area. For this reason, in the optical disk drive device designed and manufactured based on the MD format, the start position of the program area is moved to the outside of the non-standard, so that the optical pickup cannot be moved to the program area and the lens is cleaned. Could not be performed.

There is also a cleaning disk using a normal recording / reproducing disk, in which an operation method using a voice guide is recorded in a program area.
When such a cleaning disk is loaded into the optical disk drive, when the reproducing state is automatically or manually set, the optical pickup moves to read the audio guide, that is, the optical pickup moves between the lead-in area and the UTOC area. After moving for reading, when moving to the program area, the positions of the lens and the cleaning means are crossed and cleaning is performed.

[0012] However, in such a cleaning disk, there is no particular problem unless the user makes an error in the operation method. However, when the cleaning disk is completely erased, the recorded information is stored in the program area. The optical pickup cannot be moved to the program area because there is no information, and the operation ends when the information in the lead-in area is read, or the camera enters the standby state, and the lens cannot be cleaned. Would. Even if the user writes new information in the program area, the recording portion starts near the end of the UTOC area,
The optical pickup does not move to a position where it intersects with the cleaning means, and the lens cannot be cleaned.

[0013]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a cleaning disk for cleaning and removing dust and the like adhered to a lens, a magnetic head, etc. of an optical disk drive, due to the carelessness of a user. It is an object to realize a simple and accurate cleaning operation by preventing functional destruction.

[0014]

In order to solve the above-mentioned problems, a cleaning disk according to the present invention has a plurality of tracks in which information cannot be rewritten or additionally recorded in a program area, and a plurality of tracks arranged in the program area. A suitable message signal such as an audio guide for cleaning operation is recorded on a track located on the outer peripheral side of the tracks, and a lens cleaning member is disposed on a track inside the track located on the outer peripheral side. .

Therefore, it is possible to prevent the information recorded in the program area from being rewritten or erased by the user's carelessness.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. This embodiment shows an example in which the present invention is applied to a cleaning disk cartridge 1 for a so-called mini disk (MD) drive device.

The cleaning disk cartridge 1 includes:
As shown in FIG. 1, a case in which an upper shell 2 and a lower shell 3 are combined, that is, a case having a case body 4 in which a disk 5 is rotatably housed. It is. The case body 4 has a shutter 6 that can be opened and closed.
Is provided.

The disk 5 has a metal center plate 8 for chucking mounted on the center of a disk substrate 7, and has a magnetic head for recording or reproducing information on one side of the disk 5, that is, when performing an information recording or reproducing operation. A surface (upper surface in each figure, hereinafter, abbreviated as an upper surface) 5a opposite to the surface 9 is provided on a laminated portion 10 composed of a recording layer, a reflective layer, and the like, for cleaning a polishing tape or flocking for a magnetic head. Member 1
1 are provided in a stacked state. Further, the other surface 5b of the disk 5, that is, the surface (the lower surface in each figure, hereinafter abbreviated as "lower surface" in the drawings) facing the optical pickup 12 when information is recorded or reproduced, is provided with an optical disk. 180 for the lens 13 of the pickup 12
Cleaning members 14, 1 such as brushes
4 are disposed in a state of being embedded.

That is, as shown in FIGS. 2 and 3, the disk 5 has a plurality of areas defined by concentric boundary lines. These plural areas are arranged in order from the inner peripheral side to the outer peripheral side, and the lead-in area 15 including the TOC area, the UTO
A C area 16 and a program area 17 which is a recording area for recording information. The program area 17 further includes an A track 17a occupying a substantially central portion from the inner side to the outer side. Outer B area 1
7b and the outermost C area 17c. still,
The A track 17a is an area in which information of a silent state is recorded, and the B track 17b is an area in which information of an operation guide by voice such as "Cleaning is completed. Please remove the cartridge." Further, the C track 17c is an unrecorded area in which no information is recorded at the time of product shipment.

In the lead-in area 15, pits are formed. For example, the type of a disk for reproduction only or for recording / reproduction, the recordable time in a non-recording state in the case of a disk for recording / reproduction, the UTOC track 16 Information such as a start position is recorded in advance.

The UTOC track 16 is an area for recording an inventory for a user.
In the case of an MD in which music has been recorded, this is an area in which the number and length of recorded music, and the start and end addresses of each music are automatically written.

According to the MD standard, the lead-in area 15 has a maximum inner diameter of 29 mm and an outer diameter of 3 mm.
It is specified as 2 mm ± 0.2 mm.

The disk 5 has a program area A
After the information is recorded on the track 17a and the track B 17b, the cleaning means 14 and 14
It is arranged in the truck 17a.

In an ordinary MD cartridge for recording / reproducing, when loaded into an MD drive device, the optical pickup 12 and the magnetic head 9 move to the lead-in area 15 to read information and wait as it is in the lead-in area, or It automatically moves to the UTOC track 16 and stops. Next, by performing a recording or reproducing operation, the optical pickup 12 and the magnetic head 9 move to the program area 17 and start a recording or reproducing operation.

When the cleaning disk cartridge 1 is used in the MD drive device, the same operation as described above is performed. However, the cleaning members 14 and 14 as foreign substances are disposed in the A track 17a in the program area 17. Therefore, in order to clean the lens 13 of the optical pickup 12, it is necessary for the optical pickup 12 to skip the A track 17a. Therefore, in the cleaning disc cartridge 1, the following measures are taken. I have.

Cleaning of the lens 13 by the cleaning disk cartridge 1 is performed by the optical pickup 12.
Is performed when the positions of the lens 13 and the cleaning units 14 and 14 intersect during the operation of reading the information recorded on the disk 5. Therefore, in the cleaning disk cartridge 1, the A track 17a
, The operation guide information as described above is recorded on the B track 17b, and the B track 17b is set as the first track in which the reading order is the earliest.
a is set to the second track whose reading order is the second, and the A track 17a and the B track 17b are set.
The write protection information in the UTOC track is rewritten to protect. By doing so, the A track 17a may be
Or the information of the B track 17b is deleted, or the reading order of each track cannot be changed.

The cleaning of the lens 13 by the cleaning disk cartridge 1 is performed as follows.
That is, when the cleaning disk cartridge 1 is loaded in the MD drive device, the optical pickup 12 reads the lead-in area 15 and the UTOC track 16, and then waits until receiving a next operation command. At this time, the cleaning members 14 and 14 and the optical pickup 12
FIG. 2 shows the positional relationship between the lenses 13. When the optical pickup 12 is brought into the reproducing state by an operation of the user or the like, the optical pickup 12 moves in the arrow direction in the figure to read the B track (first track) 17b in the program area 17 in the first reading order.

At this time, the cleaning member 1 in which the lens 13 is disposed on the A track (second track) 17a
After the positions 4 and 14 have been crossed and the cleaning has been executed, the cleaning reaches the B track 17b, the voice guide recorded on the B track 17b is read, and the message "Cleaning is completed. Take out the cartridge. , The user recognizes that the cleaning of the lens 13 has been completed. At this time, the cleaning members 14 and 14 and the optical pickup 12
FIG.

In a recordable and reproducible MD drive device having both the optical pickup 12 and the magnetic head 9, the cleaning of the magnetic head 9 by the cleaning disk cartridge 1 is similarly performed when the cleaning disk cartridge 1 is loaded. , The optical pickup 12 includes the lead-in area 15 and the UTOC track 1
After reading (6), the process waits until a next operation command is received. When the recording state is set by the operation of the user or the like,
The optical pickup 12 includes a B track (first track) 17 b and an A track 1 in the program area 17.
Since 7a is write-protected, it moves in the direction of the arrow in FIG. 2 to record information on the C track (third track) where information has not been recorded, and starts the operation of recording information on the C track 17c.

The lens 13 is also disposed on the A track (second track) 17a.
When the positions are intersected with the positions 4 and 14, cleaning is performed. Further, when the user continues the recording operation on the C track 17c for a predetermined time, as shown in FIG. The cleaning is performed by sliding while being in contact with the cleaning member 11.

As described above, the reading order of the A track 17a and the B track 17b is changed to the first track where the reading order is the B track 17b and the second track where the reading order is the second track. Since the setting has been made, the cleaning member 1
The optical pickup moves beyond the A-track 17a on which the optical pickups 4 and 14 are arranged, so that an error in reading information can be prevented, and an extra operation can be performed only by performing a recording or reproducing operation. The cleaning of the lens 13 and the magnetic head 9 can be performed accurately without performing.

Although the cleaning disk cartridge 1 uses a recording / reproducing disk as the disk 5, it is also possible to use a reproducing-only disk. Hereinafter, a description will be given of a cleaning disk 1A which is a modified example of the cleaning disk 1 using the reproduction-only disk 20 (note that portions corresponding to the cleaning disk cartridge 1 are the same as the reference numerals used for the disk cleaning cartridge 1). Detailed description is omitted by using the reference numerals.)

That is, when the cleaning disk 1A is manufactured at the time of manufacturing the disk 20, a silent operation guide is recorded on the A track 17a, and an operation guide is recorded on the B track 17b by voice such as "Cleaning is completed. Please remove the cartridge." And the B track 17b is set as the first track in the reading order, and the A track 17a is set in the second track in the reading order.
A master, which is a master of a stamper used as a basis for manufacturing the disk 20 set as a track, is created. Based on this master, an A-track 17a, a B-track 17b and a lead-in area 15 are provided with concave and convex patterns corresponding to respective recording information. The pits 21, 21,... Are read-only and the disk 20 is created. Then, the cleaning means 14 and 14 are arranged in the A track 17a of the reproduction-only disk 20.

The lead-in area 1 of the disk 20
The information transferred to the stamper as described above and indicating that the disk is a normal recording / reproducing disk is recorded in the pit 2 as described above.
1, 21, ... are recorded. That is, MD
The data of the item for causing the drive device to recognize the disk type of the cleaning cartridge 1A is originally recognized as read-only for recording / reproduction. This is because in order to clean the magnetic head 9, it is necessary to set the MD drive to a recording state. Therefore, the MD drive recognizes the disk 20 for recording and reproduction, and The operation of writing information on the C track 17c using the magnetic head 9 is performed. However, the information is actually not written on the C track 17c because it is exclusively for reproduction.

That is, the disk 20 does not actually have a recording layer for additionally writing or rewriting information, and the lead-in area 15 and the program area 17 contain pits 21 and 21 respectively. Are recorded by the pits 21, 21,... Even if a laser beam or magnetism for recording information is added.
Is not affected at all, so even if the user accidentally erases the recorded information or attempts to change the order of each track in the program area 17, the contents will not be recorded.

Accordingly, it is necessary to set the first track in the reading order which is necessary for the cleaning disk cartridge 1A to be the B track 17b, and to set the second track in the reading order to be the second track to the A track 17a. Further, it is possible to protect each information such as the audio guide of the A track 17a as the second track. The cleaning operation of the lens 13 and the magnetic head 9 in the cleaning disk cartridge 1A using the read-only disk 20 is exactly the same as that of the cleaning disk cartridge 1 using the disk 5 for recording and reproduction.

In the cleaning disk cartridge 1, the cleaning member 11 of the magnetic head 9 is used.
The material is preferably a nonwoven fabric, a flock of fibers such as nylon and rayon, a polishing sheet coated with an abrasive composed of fine particles such as chromium oxide, aluminum oxide and silicon oxide, etc., adhered with an adhesive tape or an adhesive. In addition, the portion to which the cleaning member 11 is adhered is not limited to the front surface of the upper surface 5a of the disk 5, but may be only a part. Further, if necessary, a cleaning liquid can be applied or impregnated to further enhance the cleaning effect.

The thickness of the cleaning member 11 for the magnetic head 9 is preferably 0.5 mm or less. That is,
This is because if the cleaning member 11 is too thick and the disk 5 becomes thicker than a normal disk, rotation in the case body is hindered, and good running performance may not be secured.

The material of the cleaning member 12 for the optical pickup 12 is a brush made of nylon fiber, carbon fiber, glass fiber, aramid fiber, polyester fiber, or the like, alone or in combination. Then, in the fixing method, a steep groove or hole is provided on the disk substrate 7 and fixed at that location with an adhesive or with an adhesive tape. Further, the cleaning member 12 may be disposed at least at one position in the circumferential direction of the disk 5, and may be disposed with the tip directed in the vertical direction.

The specific shapes and structures of the respective parts shown in the above-described embodiments are merely examples for embodying the present invention, and the technical scope of the present invention is not limited thereto. Should not be interpreted restrictively.

[0041]

As described above, the cleaning disk of the present invention has a lead-in area for inventory, a program area for recording information, and a UTOC area for recording information related to the program area. A cleaning disk for cleaning and removing dust and the like attached to a lens or a magnetic head of an optical pickup of an optical disk drive device, wherein a plurality of tracks in which rewriting or additional recording of information is disabled are arranged in a program area;
Of the plurality of tracks in the program area, an appropriate message signal such as an audio guide relating to the cleaning operation is recorded on a track located on the outer peripheral side, and a lens cleaning is performed on a track located inside the track on which the message signal is recorded. By disposing the member, it is possible to prevent functional destruction due to carelessness of the user, that is, to prevent erroneous erasure or rewriting of information recorded in the program area, and to simplify the optical pickup lens and the like, and Thus, an accurate cleaning operation can be realized.

According to the second aspect of the present invention, since the cleaning member for the magnetic head is also provided, in the optical disk drive capable of recording and reproduction, not only the cleaning of the lens of the optical pickup but also the cleaning of the magnetic head. Cleaning can be performed at the same time.

According to the third aspect of the invention, the reading order of the information on the track on which the message signal is recorded and the information on the track on which the lens cleaning member is provided are determined by the order of reading the information on the track on which the message signal is recorded. Since the setting is made earlier, the lens of the optical pickup can be easily cleaned only by performing the recording operation or the reproducing operation of the information.

According to the fourth aspect of the present invention, the information of the lead-in area and the program area is recorded by transferring an uneven pattern formed on the stamper during manufacturing. It is possible to prevent the user from inadvertently erasing or rewriting the information in the program area or the program area.

According to the fifth aspect of the present invention, the information relating to the type of the disk recorded in the lead-in area is used as a recording / reproducing disk. By simply performing the recording operation, not only the cleaning of the lens of the optical pickup but also the cleaning of the magnetic head can be performed at the same time.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing the overall structure of a cleaning disk according to an embodiment of the present invention.

FIGS. 2A and 2B sequentially show the operations of an optical pickup and a magnetic head during cleaning together with FIG. 3, and FIG. 2 is a cross-sectional view showing a state when a recording or reproducing operation is performed.

FIG. 3 is a cross-sectional view illustrating a state during reading of a message signal.

FIG. 4 is a partially enlarged cross-sectional view showing a modified example of the cleaning disk of the present invention.

[Explanation of symbols]

1 ... cleaning disk, 9 ... magnetic head, 11 ...
Cleaning member (of magnetic head), 12 ... optical pickup, 13 ... lens, 14 ... cleaning member (of lens), 15 ... lead-in area, 16 ... UTOC area, 17 ... program area, 17a ... cleaning member Track 17b: track on which a message signal is recorded, 1A: cleaning disk, 21
…pit

Claims (5)

[Claims] 1. An optical pickup device comprising: a lead-in area for cataloging; a program area for recording information; and a UTOC area for recording information related to the program area. A cleaning disk for cleaning and removing dust and the like adhered to a magnetic head, wherein a plurality of tracks on which rewriting or additional recording of information is disabled are arranged in the program area, and an outer peripheral side of the plurality of tracks is provided. An appropriate message signal such as an audio guide relating to a cleaning operation is recorded on a track located, and a lens cleaning member is disposed on a track located inside the track on which the message signal is recorded. disk. 2. The cleaning disk according to claim 1, further comprising a cleaning member for the magnetic head. 3. In the program area, the information reading order of the track on which the message signal is recorded and the track on which the lens cleaning member is disposed are set so that the track on which the sound message signal is recorded comes first. The cleaning disk according to claim 1, wherein the cleaning disk is set. 4. The cleaning disk according to claim 1, wherein information of the lead-in area and the program area is recorded by transferring an uneven pattern formed on a stamper at the time of manufacturing. 5. The cleaning disk according to claim 4, wherein the information about the type of the disk recorded in the lead-in area is a recording / reproducing disk.