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1. 发明专利

JP2011134364A Optical disc drive apparatus, optical pickup control method, and program 审中-公开
标题翻译：光盘驱动装置，光学拾取控制方法和程序
公开(公告)号：JP2011134364A
公开(公告)日：2011-07-07
申请号：JP2009290694
申请日：2009-12-22
申请人： Sony Corp , ソニー株式会社
发明人： ISHIKAWA HIDEKI
IPC分类号： G11B7/14 , G11B7/085
CPC分类号： G11B7/08517 , G11B7/08582
摘要： PROBLEM TO BE SOLVED: To provide an optical disc drive apparatus which can stably perform a seek operation at high speed, when two optical pickups are carried in one thread mechanism to perform writing simultaneously, reading simultaneously or writing and reading simultaneously, and to provide an optical pickup control method and a program.
SOLUTION: There is provided the optical disc drive apparatus which includes first and second optical pickups for reproducing data recorded on an optical disc for recording data to the optical disc, a slide mechanism which carries the first and second optical pickups for making them slide in the radial direction of the optical disc, a first optical pickup control part which makes the first optical pickup perform search based on a seek command, a slide mechanism control part which controls the slide mechanism based on the seek command, and a second optical pickup control part which turns off a tracking servo of the second optical pickup when sliding by the slide mechanism.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种能够以高速稳定地执行寻道操作的光盘驱动装置，当两个光学拾取器被携带在一个螺纹机构中以同时执行写入时，同时读取或同时读写，以及以提供光学拾取器控制方法和程序。解决方案：提供了一种光盘驱动装置，其包括第一和第二光学拾取器，用于再现记录在光盘上的用于将数据记录到光盘的数据;滑动机构，其承载第一和第二光学拾取器用于使其沿光盘的径向滑动，使第一光学拾取器基于搜索命令进行搜索的第一光学拾取控制部分，基于搜索命令控制滑动机构的滑动机构控制部分和第二光学器件拾取控制部件，其在通过滑动机构滑动时关闭第二光学拾取器的跟踪伺服。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2010015616A Driving device and method, program, and recording medium 有权
标题翻译：驱动装置和方法，程序和记录介质
公开(公告)号：JP2010015616A
公开(公告)日：2010-01-21
申请号：JP2008172460
申请日：2008-07-01
申请人： Sony Corp , ソニー株式会社
发明人： ISHIKAWA HIDEKI
IPC分类号： G11B7/09 , G11B7/085
CPC分类号： G11B7/08511 , G11B2007/0013
摘要： PROBLEM TO BE SOLVED: To precisely perform a focus jump even when affected by disturbance, etc. SOLUTION: When the focus jump is started, an offset signal is generated. When a focus error signal (FE signal) is determined to be smaller than a threshold v1, the polarity of a focus control signal is reversed. Thereafter, when the FE signal is determined to be larger than a threshold v2, the polarity of the focus control signal is reversed. Thereafter, when the FE signal is determined to be smaller than a threshold v3, generation of the offset signal is stopped. Even when the focus jump is being performed, the servo is active. This method is applied to a recording and reproducing device handling a multilayer disk. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使受到干扰等影响也能精确地执行聚焦跳转。解决方案：当聚焦跳转开始时，产生偏移信号。当聚焦误差信号（FE信号）被确定为小于阈值v1时，聚焦控制信号的极性反转。此后，当确定FE信号大于阈值v2时，聚焦控制信号的极性反转。此后，当FE信号被确定为小于阈值v3时，偏移信号的产生被停止。即使正在执行焦点跳转，伺服也是有效的。该方法适用于处理多层盘的记录和再现装置。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2002008251A OPTICAL DISK DEVICE 失效
公开(公告)号：JP2002008251A
公开(公告)日：2002-01-11
申请号：JP2000188799
申请日：2000-06-23
申请人： SONY CORP
发明人： ISHIKAWA HIDEKI , MIKAMI TATSURO , SATO MASASHI
IPC分类号： G11B7/085 , G11B7/09
摘要： PROBLEM TO BE SOLVED: To provide an optical disk device where a highly precise and exact tracking retraction is enabled. SOLUTION: A DIR signal generating part 8 generates a discriminating signal for discriminating the driving direction of a tracking actuator 3 which moves an incident laser beam on an optical disk 1 in a direction traversing a track in a manner of raising time resolution for directional detection based on a polarity of a mate signal in respective rising and falling positions of a tracking zero cross signal Ftzc and a mirror signal Fm. Only the decelerating polarity part of the tracking actuator 3 of a tracking driving signal Ftf from a tracking phase compensating filter 10 is outputted as a brake signal Fb1 by a brake signal generating part 11 in accordance with the judging direction. Thus, the highly precise tracking retraction becomes possible in accordance with the driving direction of the tracking actuator 3 exactly, and the operation of the stable tracking retraction is exactly and quickly performed by an effective braking operation.

4. 发明专利

JP2002352454A OPTICAL DISK DEVICE AND TRACKING-CONTROLLING METHOD 失效
公开(公告)号：JP2002352454A
公开(公告)日：2002-12-06
申请号：JP2001158554
申请日：2001-05-28
申请人： SONY CORP
发明人： ISHIKAWA HIDEKI
IPC分类号： G11B7/085 , G11B7/09 , G11B7/095
摘要： PROBLEM TO BE SOLVED: To surely generate a track-cross signal by applying the present invention concerning an optical disk device and a tracking-controlling method to, for example, an optical disk device for a DVD. SOLUTION: A side beam scans the position which is offset by nearly (1/4+n) P or (3/4+n) P to a main beam in the direction of the radius of the optical disk 22 and the track-cross signal TCS is generated by generating a difference signal from push-pull signals PPs1 and PPs2 of the returned light by the side beam. Thus, the results H and E of the receipt of the returned light of the side beam on the remote side are processed and subjected to subtraction to a push-pull signal PPm by the returned light of the main beam.

5. 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.

6. 发明专利

JPH1031863A REPRODUCING DEVICE 失效
公开(公告)号：JPH1031863A
公开(公告)日：1998-02-03
申请号：JP20550896
申请日：1996-07-17
申请人： SONY CORP
发明人： ISHIKAWA HIDEKI , HACHIMORI TAKESHI
IPC分类号： G11B19/28 , G11B19/247
摘要： PROBLEM TO BE SOLVED: To shorten access time and to reduce power consumption by reducing a speed difference between the rotational speed when scanning the innermost periphery of a disk and that when scanning the outermost periphery than the speed difference when reproducing all areas at a specified linear velocity. SOLUTION: The reproduction is performed by switching a CLV servo to/ from a CAV servo according to a reproducing scan position in the radial direction of the disk 90. The table data for switching the linear velocity are stored in a memory 17, and the area is set by an address value, and spindle servo control operation in respective areas are set. Then, as for the change of a rotational speed in the radial direction of the disk, the speed difference between the rotational speed at the disk innermost periphery and the rotational speed at the disk outermost periphery is reduced than the speed difference in normal CLV reproduction.

7. 发明专利

JPH1031862A REPRODUCING DEVICE 失效
公开(公告)号：JPH1031862A
公开(公告)日：1998-02-03
申请号：JP20550796
申请日：1996-07-17
申请人： SONY CORP
发明人： ISHIKAWA HIDEKI
IPC分类号： G11B19/28 , G11B19/247
摘要： PROBLEM TO BE SOLVED: To control a reproducing linear velocity according to a discriminated area, to speed up access operation and to reduce power consumption by making the speed difference of a disk rotational speed lower than a rotational speed difference between inner/outer peripheries. SOLUTION: Plural areas are set in the radial direction of a disk 90, and the operation switching the linear velocity at every area and reproducing is executed. Thus, the table data for switching the linear velocity are stored in a memory 17, and the area is set by an address value, and the linear velocities in respective areas are set. At this time, the no. of the address of a disk innermost side, the address of an outermost side are made nLAST, and n1-n4 show the certain specified addresses on the disk.

8. 发明专利

JPH0744978A FLOPPY DISK DEVICE 失效
公开(公告)号：JPH0744978A
公开(公告)日：1995-02-14
申请号：JP20857393
申请日：1993-07-30
申请人： SONY CORP
发明人： ISHIKAWA HIDEKI , SAITO HITOSHI
IPC分类号： G11B5/48 , G11B17/32
摘要： PURPOSE:To provide a floppy disk device capable of sufficiently and surely limiting the harmful vibrations of a head chip and a head arm and preventing a head squeaking. CONSTITUTION:At the floppy disk device having a gimbals with a head chip 22 on the tip part of a head arm 7 and with the base part of the head arm attached to a carriage 14 via a spring plate 13, a dumping material 18 made of an elastic material is provided between the spring plate and the carriage. Also, rib materials 19 and 25 are projectingly provided along the longitudinal direction of the head arm on both upper and lower surfaces of the head arm. Further, a dumper 28 made of an elastic material is attached to both surfaces of the gimbals.

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