WO2003077251A1 - Dispositif lecteur de disque - Google Patents
Dispositif lecteur de disque Download PDFInfo
- Publication number
- WO2003077251A1 WO2003077251A1 PCT/JP2003/002122 JP0302122W WO03077251A1 WO 2003077251 A1 WO2003077251 A1 WO 2003077251A1 JP 0302122 W JP0302122 W JP 0302122W WO 03077251 A1 WO03077251 A1 WO 03077251A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- disk
- recording medium
- shaped recording
- peripheral end
- guide member
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
- G11B17/05—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs not contained within cartridges
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
- G11B21/20—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier
- G11B21/21—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier with provision for maintaining desired spacing of head from record carrier, e.g. fluid-dynamic spacing, slider
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/082—Aligning the head or the light source relative to the record carrier otherwise than during transducing, e.g. adjusting tilt set screw during assembly of head
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/0857—Arrangements for mechanically moving the whole head
- G11B7/08582—Sled-type positioners
Definitions
- a disk-shaped recording medium such as a connected disk (CD) or a digital video disk (DVD) is placed and driven to rotate.
- the present invention relates to a disk drive for writing and reading information.
- Some disk drive units are built into a parent device, such as a note type personal computer, in which internal mechanisms are arranged at high density. Since the device has little room in the internal space, the disk drive incorporated therein should also be thin (when the rotating surface of the disk-shaped recording medium is horizontal). (Up and down dimension, height) must be made in a compact.
- the writing and reading of information to and from a disk-shaped recording medium is performed by using a head or a disk for a rotating disk. This is accomplished by emitting a thin laser beam and receiving the reflected light. To do this, rotate the disk and reciprocate the head linearly to the rotating disk in the radial direction of the disk with respect to the rotating disk. And a disk drive for writing information to or reading information from the disk.
- the head is inevitably inevitable in its dimensions and position during manufacture, and the product is adjusted to the optical axis angle of the laser light radiated from the head.
- Spread (0.2 to 0 for best inclination). 3 °), so adjust the head tilt to adjust the optical axis angle of the laser beam entering the disk after the head is assembled.
- Mechanism is needed.
- the inclination of the head is adjusted by adjusting the inclination of a guide member that allows the head to slide linearly in the direction of the disk radius. I was going.
- two guide members are provided, one end of which is arranged on the inner periphery of the disk and the other end is arranged on the outer periphery of the disk.
- One guide member is provided with a tilt adjusting mechanism on both the inner peripheral side and the outer peripheral side, and the other guide member is disposed on the outer peripheral side.
- An inclination adjustment mechanism is provided.
- the purpose of this structure is to determine three points in space that determine the plane on which the head moves, but the inclination of the plane on which the head moves in the direction of the disk radius is determined. Regarding this, the inclination of the guide member in the disk radius direction may be adjusted.
- such a conventional tilt adjusting mechanism is configured such that, based on the disk inner end Q of the guide member 1, the height of the outer end ( The tilt adjustment is performed by adjusting the rotation table (in the direction perpendicular to the rotation reference plane), and a guide member 1 is provided on the outer peripheral side of the disk.
- the range (e-g) for adjusting the inclination of the guide shaft is required, and the above range (e-g) also means the amount of adjustment. .
- Reference numeral 2 denotes a disk
- reference numeral 3 denotes a protective member. It is a dog.
- a to g indicate the position of the outer peripheral end or the position of the distal end, respectively.
- a line b indicates a position corresponding to a rotation reference plane of a rotating table on which the disk 2 is mounted and rotated, and P is a center of rotation. Note that the figure emphasizes the inclination rather than the actual one for explanation.
- a line d is a horizontal reference plane of the protection member 3 defined by a relation with the rotation reference plane b of the rotation table, and is parallel to the rotation reference plane b.
- the rotation may occur on the outer peripheral side of the disk 2, due to various factors such as the manufacturing of the disk 2 or the vibration of the disk drive motor, the rotation may occur. Due to the amount of displacement (a-c, approximately 0.9 mm as the industry's generally accepted standard) in the direction perpendicular to the reference plane of the table, the disk If the maximum possible hindrance, such as a collision between the head and the disk 2 while the drive unit 4 is in operation, is to be considered, this amount should be set to the specified value. (A-c) needs to be considered. For this reason, the distance between the disk 2 and the guide member 1 is at least a predetermined amount of displacement (a-c) when the disk rotates and the guide. The value obtained by adding the tilt adjustment amount (e-g) of the member 1 and adding both of them is considered. Note that the distance between c and d and between d and e are the minimum required clearances set for safety to avoid contact with the protection member 3.
- the protective member 3 (a thread can be removed) so that the guide member 1 and the like do not expose between the disk 2 and the head. Therefore, a space is set above the protective member 3 so as to cope with the predetermined amount of displacement (a-c) of the disk 2, and the guide member 1 is provided below the protective member 3. A space is set up to cope with the tilt adjustment amount (e-g), and a dimension (c_e) is used above it to wipe off the possibility of interference with the protective member 3. — The dimension between g is large.
- the protection member 3 is generally a flat surface parallel to the rotation reference plane b in a region where the disk 2 rotates.
- the inclination of the guide member 1 is adjusted by adjusting the inner peripheral end of the guide member 1 as a fixed point Q in the upper and lower direction and adjusting the outer peripheral end in the upper and lower positions.
- the structure is based on the “standard,” the Japanese Patent Publication No. 200-0-57715 has an adjusting structure at both ends of the guide member 1, so that the structure shown in FIG.
- the inclination of the guide member 1 is adjusted by the ⁇ outer reference '' in which the outer end of the guide member 1 is used as a fixed point Q in the upper and lower directions and the inner peripheral end is adjusted vertically. You can do that too.
- the inclination adjustment amount of the guide member 1 is the same even if the outer reference or the inner reference is used, and the upper part of the protective member 3 such as a thread cover is provided on the upper side of the protection member 3.
- the space to cope with the predetermined amount of shake (a-c) of Sk2 and set the space below to cope with the tilt adjustment amount (e-g) of guide member 1 on the lower side
- the dimension (c-1e) for removing the risk of interfering with the protective member 3 is added to this, and the distance between a-g is added.
- the dimensions are ultimately the same, which is large.
- Disclosure of invention The purpose of this invention is to further reduce the upward and downward dimension (thickness) of the disk drive.
- the outer peripheral side of the disk When the disk rotates, the outer peripheral side of the disk is displaced in the direction perpendicular to the rotation reference plane of the rotary table with respect to the center of the rotary table.
- the wedge-shaped space in the cross section which is not affected by the shake, expands as the rotating table approaches the center of the rotating table from the outer peripheral side. are doing .
- the invention of the present application utilizes this space to provide a space for dealing with a predetermined amount of deviation on the outer peripheral side of the disk and a space for dealing with the amount of inclination and adjustment of the guide member. And make the device overlap (Fig. 3) to reduce the vertical dimension (thickness) of the device.
- the disk drive shall have a rotary table, heads, guide members and a tilt adjustment mechanism.
- the rotating table has a rotation reference plane for rotating the mounted disk, and the head reads out information from the disk, or reads the information from the disk. And at least one of the writing of information.
- the guide member has an inner peripheral end which is an inner peripheral side of a disk placed on a rotating table and an outer peripheral end which is an outer peripheral side, and has a head.
- the tilt adjustment mechanism which is conceivable in the slide itself in the direction of the radius of the disk is a tilt in the disk radius direction with respect to the reference surface of the rotating table of the guide member. Is adjusted on the basis of at least the outer peripheral end, the upward position of which is restricted by the restricting means.
- the position can be adjusted by arranging the position from the outer peripheral end to a position further upward, and the range of the predetermined amount of deviation during disk rotation and the guide member can be adjusted.
- the range of the tilt adjustment amount can be overlapped.
- the disk drive can be operated without hindrance, and the height of the device can be reduced.
- the disk drive is provided with a protective member between the rotation reference surface of the rotary table and the guide member for preventing the guide member from being exposed upward. Often. If the protection member is present horizontally at this position, even if the inclination adjustment of the guide member is used as the above-mentioned outside reference, the inner peripheral end may come out above the protection member. As shown in FIG. 1 and the mouth, the vertical dimension a—g is the same as the conventional one. However, when installing a protective member, the protective member must be attached to the center of the disk. If at least a part of the head is lowered from the rotation reference plane of the rotating table, at least a part of the head may be tilted so that the outer peripheral side is lowered. The inclination of the guide member can be adjusted by the inclination adjusting mechanism so that the deviation of the outer periphery of the disk is within a predetermined amount.
- the protective member corresponds to the inner peripheral end of the guide member as described above.
- the side of the thread is made higher than the side corresponding to the outer peripheral end to avoid interference with the guide member or the head.
- the other parts are flat protective parts, and are kept on a horizontal plane parallel to the rotation reference plane of the rotating table, and correspond to the moving area of the head. It is also possible to indent only the portion that has been cut upward from below to incline the protection member at that portion to avoid interference with the guide member or the head.
- the guide member is provided at least at one of the inner peripheral end and the outer peripheral end.
- the vertical position may be restricted by the pressing force of the protective member ⁇ spring, or by another structure.
- the inclination adjustment of the guide member has a structure capable of adjusting the height of one or both of the inner peripheral end and the outer peripheral end. Is also good.
- Figure 1 is an explanatory diagram of the conventional internal standard.
- FIG. 2 is an explanatory diagram of a conventional external standard.
- FIG. 3 is an explanatory diagram of the external standard according to the present invention.
- FIG. 4 is a plan view mechanically showing the disk drive device.
- FIG. 5 is a plan view of the threaded chassis with the threaded canopy removed.
- FIG. 6 is a plan view of the head drive mechanism.
- Figure 7 is a side view (before adjustment) showing a partially enlarged view.
- FIG. 8 is an enlarged view of a part of FIG.
- Figure 9 is a partially enlarged side view (after adjustment).
- FIG. 10 is an enlarged view of a part of FIG.
- FIG. 11 is a side view (second embodiment) showing a partially enlarged view.
- FIG. 4 shows a first embodiment of the present invention.
- the disk drive 4 has a main body chassis 5 and a tray 6, and is entirely a notebook type. It is built into a computer.
- the main body chassis 5 usually has an upper lid 7, and becomes a box-shaped main body chassis 5 as a whole.
- the main body chassis 5 is provided with an external connection connector 8 for connecting the disk drive device 4 to a parent device, and an interface function for the external connection.
- Connection connector 10 and FPC (Flexible Printed Circuit) 1 1 for connection to the circuit board 9 containing the PCB and the tray 6 side Is provided.
- the tray 6 has a structure in which a threaded chassis 13 is fitted and fixed to a synthetic resin tray base 12, and the main body chassis 5 is provided. By the left and right rail mechanisms provided between the main body chassis 5 and the main body chassis 5, the entire body can be slid.
- FIG. 4 shows an opening position where the tray 6 has been bowed out of the main body chassis 5. In contrast, FIG. 4 shows the main body chassis 5. At the load position where the position where the tray 6 is completely pushed down is the load position, the drive rotation of the disk 2 and the writing or reading of information are not possible. It is done.
- the threaded chassis 13 (FIG. 5) has a chassis body 14 made of a synthetic resin and a threaded canopy 15 to be placed on the chassis main body 14.
- the rotating table 16 and the head drive mechanism 17 are attached to the body 14.
- the rotating table 16 is driven and rotated by a spindle motor (not shown).
- a drive control of the rotating table 16 and the head drive mechanism 17 and writing to the disk 2 are performed.
- a circuit board containing the control functions for performing the read and write processing is mounted, and the FPC is used to connect the spindle motor and head drive mechanism 17 to the circuit board. Each is connected.
- the head drive mechanism 17 (FIG. 6) includes a main guide shaft 1a and a sub guide shaft 1b (each of which is a guide member, and a guide member). Head member 1), a head 18, a feed screw 19, and a head drive motor 20.
- the primary guide shaft 1a and the secondary guide shaft 1b are viewed It is arranged parallel to the radial axis towards the center of the bull 16.
- the left and right of the head 18 are slidably mounted on the main guide shaft 1a and the sub guide shaft 1b, and the main guide of the head 18 is provided. The left side attached to the shaft 1a is engaged with the feed screw 19.
- the lens 21 of the head 18 is driven by the head drive motor 20 to rotate the disk 2 at the load position. It is reciprocated in the radial direction.
- the inner peripheral end B disposed on the outer peripheral side and the outer peripheral end A disposed on the outer peripheral side are both tilted to the chassis body 14 by the adjusting mechanism 22. It is mounted so that the position can be adjusted in the vertical direction, which is close to and away from the reference surface b where the recording medium is placed (Fig. 5).
- the tilt adjusting mechanism 22 has a spring 23 and an adjusting screw 24 arranged on a step portion of the chassis body 14, and connects the end of the guide member 1 to the chassis body.
- the guide member 1 When the spring is pressed from above by the spring 23, it is supported from below by the adjusting screw 24 at the same time, and the screwing amount of the adjusting screw 24 is adjusted. By doing so, the vertical position of the guide member 1 can be adjusted.
- the end position of the guide member 1 is regulated by pressing with the spring 23 and receiving with the adjustment screw 24.
- the spring 23 and the adjustment screw 24 are regulating means for restricting the upward position of the end of the guide member 1. Therefore, the guide member 1 is capable of adjusting the position of these ends up and down and restricting the upward position, and the adjustable range is as follows.
- the vertical position of the other end is adjusted with respect to one end to adjust the angle of the head 18 with respect to the optical axis (usually 0.2 to 0). 3 °), that is, the range in which the adjustment of the inclination in the longitudinal direction with respect to the reference plane b can be sufficiently performed.
- this is a position of the uppermost end C of the guide member 1 (usually a head 18), with the outer end A being an upper and lower fixed point, as shown in FIG.
- the outer reference is used to adjust the position to the highest reference plane b based on the amount of inclination adjustment of the guide member 1.
- the outermost end A (Figs. 1, 2 and 10) of the close part does not interfere with the fan-shaped space (a-P-c) related to the amount of shake on the outer peripheral side of the disk.
- the distance (b-e) between the uppermost end C and the reference plane b is increased upward to an allowable limit that is smaller than the amount of deviation (b-c) of the outer circumference of the disk-shaped recording medium.
- a protective member 3 such as a thread cover 15 is interposed between the disk 2 and the guide member 1
- the uppermost end C described above is a protective member.
- the surface of the protection member 3 is inclined so as to be spaced from the top 3 so as to match the top end C.
- the threaded canopy 15 corresponding to the guide member 1 is inclined so as not to abut on the uppermost end C.
- the threaded canopy 15 avoids the leading edge C of the guide member 1. For this reason, a concave portion is provided, and the inner peripheral end of the concave portion is inclined so as to be closer to the reference plane b than the outer peripheral end.
- the top end D of the thread cover 15 is above the reference horizontal plane d of the protection member 3 in FIGS. 1 and 2, and the top end position D is the rotation table 1. It is located below the reference plane b of 6 and within the specified blur (b-c) on the outer peripheral side of the disk. As a result, as shown in FIG. 10, the guide member 1 is more sled than the conventional position which is restricted by the horizontal threaded canopy 15. Only the part (wl) where the top end D of the dock 15 is above the reference horizontal plane d of the protective member 3 is located above, and the entire part is located above (wl). Thus, the upward and downward dimensions of the disk drive device 4 can be reduced.
- the thread canopy 15 should be positioned as a whole with respect to the rotating reference plane b such that the inner peripheral end is closer to the reference plane b than the outer peripheral end. It may be tilted, or a portion corresponding to the guide member 1 may be cut out.
- FIG. 11 shows the second embodiment, which is characterized in that the protective member 3 is not provided.
- the point A on the outer peripheral side of the guide member 1 is closer to the lower end point c, which is later than the reference plane b of the sector (a-P-c) relating to the predetermined amount of disk displacement. Therefore, the entire guide member 1 can be moved upward.
- the overlap amount (w2) between the range of the tilt adjustment amount (eg) and the predetermined range of the disk shake amount (a_c) is further increased.
- the vertical dimension of the disk drive 4 is further reduced. Can be obtained.
- the inclination adjustment of the guide member 1 is performed on the basis of the outside standard, and therefore, the outer peripheral end of the guide member 1 is fixed at the time of the adjustment.
- the position of the outer peripheral end that is, the fixed point, is fixed to the adjusting screw.
- the adjustment projection is set by adjusting the edge 24, but the regulation projection is set at a location corresponding to the outer peripheral side end of the guide member 1 in the chassis body 14 If 25 (Fig. 10) is provided, it will be a regulating means that the fixed point position can be uniquely defined by simply screwing in the adjustment screw 24.
Landscapes
- Moving Of Heads (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2004-7011946A KR20040078153A (ko) | 2002-02-26 | 2003-02-26 | 디스크 구동 장치 |
US10/505,324 US20050144630A1 (en) | 2002-02-26 | 2003-02-26 | Disc drive unit |
EP03707090A EP1489613A1 (en) | 2002-02-26 | 2003-02-26 | Disk drive device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-49801 | 2002-02-26 | ||
JP2002049801A JP2003249041A (ja) | 2002-02-26 | 2002-02-26 | ディスク駆動装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003077251A1 true WO2003077251A1 (fr) | 2003-09-18 |
Family
ID=27800019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/002122 WO2003077251A1 (fr) | 2002-02-26 | 2003-02-26 | Dispositif lecteur de disque |
Country Status (6)
Country | Link |
---|---|
US (1) | US20050144630A1 (ja) |
EP (1) | EP1489613A1 (ja) |
JP (1) | JP2003249041A (ja) |
KR (1) | KR20040078153A (ja) |
CN (1) | CN1639793A (ja) |
WO (1) | WO2003077251A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006155781A (ja) * | 2004-11-30 | 2006-06-15 | Orion Denki Kk | ガイドシャフト保持機構及びそのガイドシャフト保持機構を備えたディスク装置 |
JP4031479B2 (ja) | 2004-12-28 | 2008-01-09 | 東芝サムスン ストレージ・テクノロジー株式会社 | 光ディスク装置 |
JP4843350B2 (ja) | 2006-04-04 | 2011-12-21 | 株式会社日立製作所 | ディスク駆動装置 |
CN100583261C (zh) * | 2006-11-07 | 2010-01-20 | 广明光电股份有限公司 | 光驱机芯保护盖 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5987555U (ja) * | 1982-12-02 | 1984-06-13 | 浜田 幸彦 | ボ−ルペン付ライタ− |
JPS60236130A (ja) * | 1984-05-09 | 1985-11-22 | Sharp Corp | 記録情報再生装置におけるデイスク傾斜角検出装置 |
JPS6316425A (ja) * | 1986-07-08 | 1988-01-23 | Pioneer Electronic Corp | デイスク再生装置 |
JPH10134387A (ja) * | 1996-10-31 | 1998-05-22 | Sony Corp | 光ディスク再生装置のスキュー調整機構 |
JPH11296866A (ja) * | 1998-02-13 | 1999-10-29 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
JP2001093178A (ja) * | 1999-09-21 | 2001-04-06 | Sharp Corp | 対物レンズの傾き調整機構及びそれを備えた光ピックアップ装置 |
JP2001155360A (ja) * | 1999-11-25 | 2001-06-08 | Matsushita Electric Ind Co Ltd | 光ディスク装置のピックアップ移動機構およびピックアップ移動方法 |
JP2001256712A (ja) * | 2000-03-10 | 2001-09-21 | Matsushita Electric Ind Co Ltd | ディスク装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5107478A (en) * | 1988-06-07 | 1992-04-21 | Yamaha Corporation | Tilt device for an optical head |
US5311497A (en) * | 1991-09-30 | 1994-05-10 | Sony Corporation | Pickup feeding apparatus for a double-sided reproducing disc player |
MY132591A (en) * | 1995-10-26 | 2007-10-31 | Sony Corp | Optical disc apparatus. |
US6178154B1 (en) * | 1998-02-13 | 2001-01-23 | Matsushita Electric Industrial Co., Ltd. | Optical disk device having increased height at an outer periphery of the optical disk |
KR100370187B1 (ko) * | 1998-08-05 | 2003-03-17 | 삼성전자 주식회사 | 광기록재생장치,이에적합한틸트보정방법,그리고기록제어방법 |
-
2002
- 2002-02-26 JP JP2002049801A patent/JP2003249041A/ja active Pending
-
2003
- 2003-02-26 CN CNA038045656A patent/CN1639793A/zh active Pending
- 2003-02-26 US US10/505,324 patent/US20050144630A1/en not_active Abandoned
- 2003-02-26 KR KR10-2004-7011946A patent/KR20040078153A/ko not_active Application Discontinuation
- 2003-02-26 WO PCT/JP2003/002122 patent/WO2003077251A1/ja not_active Application Discontinuation
- 2003-02-26 EP EP03707090A patent/EP1489613A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5987555U (ja) * | 1982-12-02 | 1984-06-13 | 浜田 幸彦 | ボ−ルペン付ライタ− |
JPS60236130A (ja) * | 1984-05-09 | 1985-11-22 | Sharp Corp | 記録情報再生装置におけるデイスク傾斜角検出装置 |
JPS6316425A (ja) * | 1986-07-08 | 1988-01-23 | Pioneer Electronic Corp | デイスク再生装置 |
JPH10134387A (ja) * | 1996-10-31 | 1998-05-22 | Sony Corp | 光ディスク再生装置のスキュー調整機構 |
JPH11296866A (ja) * | 1998-02-13 | 1999-10-29 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
JP2001093178A (ja) * | 1999-09-21 | 2001-04-06 | Sharp Corp | 対物レンズの傾き調整機構及びそれを備えた光ピックアップ装置 |
JP2001155360A (ja) * | 1999-11-25 | 2001-06-08 | Matsushita Electric Ind Co Ltd | 光ディスク装置のピックアップ移動機構およびピックアップ移動方法 |
JP2001256712A (ja) * | 2000-03-10 | 2001-09-21 | Matsushita Electric Ind Co Ltd | ディスク装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1489613A1 (en) | 2004-12-22 |
KR20040078153A (ko) | 2004-09-08 |
CN1639793A (zh) | 2005-07-13 |
JP2003249041A (ja) | 2003-09-05 |
US20050144630A1 (en) | 2005-06-30 |
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