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11. 发明专利

JP2000195079A OPTICAL DISK-DRIVING APPARATUS AND SKEW SERVO METHOD 失效
公开(公告)号：JP2000195079A
公开(公告)日：2000-07-14
申请号：JP37063998
申请日：1998-12-25
申请人： SONY CORP
发明人： KUMAI SATOSHI , MUNEKATA KAZUMI
IPC分类号： G11B7/095
摘要： PROBLEM TO BE SOLVED: To surely effectuate skew servo and drive to rotate an optical disk by detecting a skew for the reflectively change type optical disk and executing skew servo on the basis of the detected result of the skew. SOLUTION: A detect output of a two-split photosensor is supplied as a skew error signal by a skew error detect circuit comprising a subtractor, an adder and a divider to a skew servo circuit 11. Based on the signal, the skew servo circuit 11 generates a control voltage corresponding to a correction amount for correcting a relative tilt of an optical disk 1 and an optical pickup 2 and supplies the control voltage to a skew motor 10. The skew motor 10 drives on the basis of the control voltage from the skew servo circuit 11 to rotate a cam 8 for moving up and down one end of a supporting member 13 for the optical unit 4, thereby changing a tilt of the optical unit 4. The relative tilt of the optical disk 1 and optical pickup 2, namely, a skew is thus corrected.

12. 发明专利

JPH06223481A GIMBALS 失效
公开(公告)号：JPH06223481A
公开(公告)日：1994-08-12
申请号：JP1348693
申请日：1993-01-29
申请人： SONY CORP
发明人： MUNEKATA KAZUMI
IPC分类号： G11B5/49 , G11B17/32
摘要： PURPOSE:To provide a gimbals capable of being used for a thin floppy disk drive with a media size of a head easy horizontal type and thinning the driving. CONSTITUTION:A pair of inside tie bars 4, 4 prolonging in parallel with the grooving direction of an upper head 2 attached to an upper head attaching part 3 are provided on the outer periphery of the upper head attaching part 3 attaching the upper head 2. An inside annular frame part 5 is supported by these inside tie bars 4, 4. A pair of outside tie bars 6, 6 prolonging in a direction perpendicular to the grooving direction are provided on the outer periphery of the inside annular frame part 5. An outer annular frame part 7 is supported by these outside tie bars 6, 6.

13. 发明专利

JPH03157858A DISK ROTATION DRIVING DEVICE 失效
公开(公告)号：JPH03157858A
公开(公告)日：1991-07-05
申请号：JP29717589
申请日：1989-11-15
申请人： SONY CORP
发明人： MUNEKATA KAZUMI
IPC分类号： G11B17/028 , G11B17/03
摘要： PURPOSE:To eliminate a need to attach a pivotally supporting shaft of a turning lever to a rotating disk to simplify and facilitate attachment of a flat spring material by positioning and forming the pivotally supporting shaft of the turning lever as one body together with the rotating disk and putting the turning lever on the lower face of the rotating disk and clipping both of them by the flat spring material having U-shaped side faces. CONSTITUTION:A pivotally supporting shaft 6 of a turning lever 7 is formed in the vicinity of the peripheral edge part of the rear face side of a rotating disk 3 as one body together with the rotating disk 3. The turning lever 7 is put on the lower face of the rotating disk 3, and a flat spring material 8 is inserted from the outer peripheral side of the rotating disk in this state, and the upper face side of the rotating disk 3 is retained by one of a pair of pieces 8a facing each other, and the lower face of the turning lever 7 is pressed with a projecting piece 8c provided in the front end of the other piece 8b to press the turning lever 7 to the lower face of the rotating disk 3, and the turning lever 7 is so supported that it does not slip off this shaft 6. Thus, the number of parts is reduced, and the positional deviation for attachment of the pivotally supporting shaft of the turning lever is eliminated, and attachment of the flat spring material is facilitated.

14. 发明专利

JPH03152760A DISK CHUCKING DEVICE 失效
公开(公告)号：JPH03152760A
公开(公告)日：1991-06-28
申请号：JP29033189
申请日：1989-11-08
申请人： SONY CORP
发明人： MUNEKATA KAZUMI
IPC分类号： G11B17/03 , G11B17/028
摘要： PURPOSE:To decrease the change in an index position by supporting the contact point of a chuck arm inserted to the outer circumference of a support shaft and the support shaft itself with the inner circumference of a support hole to the prescribed position eccentric to the drive pin side with respect to the center of the support shaft before and after chucking. CONSTITUTION:The contact point P3 between the outer circumference f a sup port shaft 6 and the inner circumference of a support hole 7 of a chuck arm 5 inserted to the support shaft 6 is kept to a nearly prescribed position eccentric toward a drive pin 9 with respect to the center O3 of the support shaft 6 even before and after chucking. That is, the weight direction of a spring weight F4 by a spring 11 is tilted by an angle # in opposite direction to the turning direction of a turntable with respect to an x' coordinate. Thus, the arm length lof the chuck arm 5 attended with loading/ejection of a disk is not almost changed and the change in the index position is much decreased.

15. 发明专利

JPH02141956A ROTARY DRIVING DEVICE FOR DISK 失效
公开(公告)号：JPH02141956A
公开(公告)日：1990-05-31
申请号：JP29564988
申请日：1988-11-22
申请人： SONY CORP
发明人： MUNEKATA KAZUMI
IPC分类号： G11B17/028 , G11B19/20 , G11B23/00
摘要： PURPOSE:To attain highly accurate recording and reproduction by providing a projection formed nearly in a circular-arc shape along the outer circumference of a turntable at a height slightly lower than a disk loading face at the opposite side to a drive pin while clipping a center pin inbetween. CONSTITUTION:With a disk 40 chucked, a drive pin insert hole of a center core 41 may override an upper end face 14a of a bearing 14. In this case, the core 41 is in contact with a point A of the face 41a and a point C on an upper end face 23a of a projection and is tilted by an angle theta1'. Since the projection 23 is formed almost in a circular-arc form, the core 41 is tilted only unidirectionally X'. As a result, since the upper end of the bearing 14 is not latched to a front side 43b and the tilt angle theta1' in the direction X' is very small, the outer side 43a of the core 41 is easily fallen off from the R of the outer circumferential corner 14b toward the outside. Thus, the insert hole 43 is surely inserted to the outer circumference of the bearing 14 and chucked.

16. 发明专利

JPS63204549A DISK DEVICE 失效
公开(公告)号：JPS63204549A
公开(公告)日：1988-08-24
申请号：JP3680287
申请日：1987-02-19
申请人： SONY CORP
发明人： TSUJI KIYOAKI , MUNEKATA KAZUMI , OKANISHI TOSHIHARU
IPC分类号： G11B17/32 , G11B21/20
摘要： PURPOSE:To facilitate an appropriate head pressure adjustment according to a different recording density disk by providing a head pressure adjustable member consisting of a cam and ratchet which are concentrically fixed on the other end side of a spring member for energizing a supporting arm to press against the disk. CONSTITUTION:When a carrier 2 is transferred in such a manner that a head device is to be reached to a prescribed position out of the recording and reproducing area of the disk 1, a contact engagement member 28 is engaged with the ratchet 24 of the head pressure adjustable member 22, and consequently the cam 23 is rotated by a prescribed angle, so that the other end side in contact with the cam, of the spring member 21 is displaced to change an energized force of the spring member. For this, the pressing force of the supporting arm 4 against the disk 1 is changed, and then the head pressure of the head device is also changed accordingly. In this case, a sectional form of the cam 23 is properly set up in advance. By this method, an appropriate head pressure can thus be obtained in conformity with a kind of disk.

17. 发明专利

JP2003323721A Address determining method for optical disk and optical disk recording device 审中-公开
标题翻译：光盘和光盘记录装置的地址确定方法
公开(公告)号：JP2003323721A
公开(公告)日：2003-11-14
申请号：JP2002130029
申请日：2002-05-01
申请人： Sony Corp , ソニー株式会社
发明人： OGIWARA KOICHIRO , OWA HIDEO , MUNEKATA KAZUMI
IPC分类号： G11B7/005
摘要： PROBLEM TO BE SOLVED: To quickly record information in an optical disk by determining a necessary address in a short period, when writing information by a plurality of light beams. SOLUTION: In an address calculation circuit 34, when the address of a light beam is detected, the address of remaining light beam at that time and the next address to be read are calculated. Then, these calculated addresses are compared with the detected addresses in a comparison circuit 32. Then, a decision circuit 36 decides whether the detected addresses and the computed addresses matches. When they matches, the information recording is started, and when they do not match, the error deletion of the information is prevented by halting the recording of information. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：当通过多个光束写入信息时，通过在短时间内确定必要的地址来快速地将信息记录在光盘中。解决方案：在地址计算电路34中，当检测到光束的地址时，计算该时间剩余光束的地址和下一个要读取的地址。然后，将这些计算的地址与比较电路32中的检测到的地址进行比较。然后，判定电路36判定检测到的地址和计算的地址是否匹配。当它们匹配时，信息记录开始，并且当它们不匹配时，通过停止记录信息来防止信息的错误删除。版权所有（C）2004，JPO

18. 发明专利

JP2002050063A OPTICAL DISK DEVICE 失效
公开(公告)号：JP2002050063A
公开(公告)日：2002-02-15
申请号：JP2000231273
申请日：2000-07-31
申请人： SONY CORP
发明人： MUNEKATA KAZUMI
IPC分类号： G11B7/095
摘要： PROBLEM TO BE SOLVED: To provide an optical disk device capable of securing radial skew margin and reducing access time of a pickup. SOLUTION: A skew sensor 50 emits a light beam to the recording face 1A of an optical disk 1, receives the light beam reflected on the recording face 1A by two light receiving elements, and outputs them as voltage signals A, B. The voltage signals A, B are inputted in a read processor 200, with a radial skew measured. The skew motor 70 is rotatably driven, the revolution of a cam 80 moves a pin 90 vertically, turning a sub-chassis 20 up and down around an axis part 24. By the rotary driving of the skew motor 80, the radial skew of the pickup 40 is adjusted.

19. 发明专利

JP2000149271A DISK RECORDING MEDIUM, RECORDING DEVICE, AND REPRODUCING DEVICE 失效
公开(公告)号：JP2000149271A
公开(公告)日：2000-05-30
申请号：JP31780098
申请日：1998-11-09
申请人： SONY CORP
发明人： TAKEDA RITSU , KUMAI SATOSHI , MIKAMI TATSURO , UEHARA SHUJI , OKANISHI TOSHIHARU , OGAWA KENJI , NISHIDA NORIO , SATO MASASHI , ISHIKAWA HIDEKI , MUNEKATA KAZUMI , YANAGIMOTO KAORU , MITSUNE NORICHIKA
IPC分类号： G11B7/24 , G11B7/007 , G11B7/26 , G11B19/247 , G11B20/10 , G11B27/19 , G11B27/24 , G11B27/30
摘要： PROBLEM TO BE SOLVED: To enable accurate recording and reproducing clocks to be generated by making constant the line density for the wave number regarding wobbling waveform of a track and forming a rotation angle mark indicating a prescribed rotation angle position of a disk. SOLUTION: Data are recorded while keeping constant line density(CLD), and the number of carrier waves of a wobbling group is assumed to CLD, further, a fine clock mark is added as CAV reference, and record and reproduction being more accurate are aimed at, and the wobbling period of a group is set. First, in adjacent tracks, the phase relation of a wobbling waveform is made so that a rotation angle position to be fixed relation exists. For example, when a rotation angle position of a start point of each rotation track is assumed to be 0 degree (the direction of 12 o'clock of a clock), the phase difference between adjacent tracks is made to have fixed relation at this position 0 degree. Further, a fine clock mark is added to a rotation angle position in fixed relation when phase difference is 0, 180, or 270 degrees.

20. 发明专利

JPH09120629A FLOPPY DISK APPARATUS AND DETECTING APPARATUS 失效
公开(公告)号：JPH09120629A
公开(公告)日：1997-05-06
申请号：JP30217395
申请日：1995-10-25
申请人： SONY CORP
发明人： NODA MASAYUKI , SUZUKI YUJI , MUNEKATA KAZUMI , GOTO SATORU
IPC分类号： G11B17/04 , G11B17/043 , G11B19/12
摘要： PROBLEM TO BE SOLVED: To enable meeting to a plurality of kinds of floppy disk cartridge of different sizes, by detecting whether an inserted disk cartridge is a first or a second cartridge, and controlling a revolution number of a disk based on the detection result. SOLUTION: When a large capacity floppy disk cartridge 10 is inserted in a floppy disk apparatus 20, a cartridge detection switch 50 of a cartridge holder is turned ON. In consequence, a revolution number control signal corresponding to a disk 12 of the cartridge 10 is sent from a motor servo drive circuit 51 to a spindle motor 52, whereby a revolution number of the motor 52 is changed. The disk 12 in the cartridge 10 is rotated at 3000rpm. When a 3.5-inch floppy disk cartridge 1 is inserted, the switch 50 is not turned ON and a revolution number control signal corresponding to the 3.5-inch floppy disk cartridge is sent out from the motor servo drive circuit 51 to the motor 52. A disk 3 of the 3.5-inch floppy disk cartridge 1 is accordingly rotated at 300rpm.

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