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11.发明专利Servo controller, servo control method and optical disk recording or reproducing apparatus 有权伺服控制器，伺服控制方法和光盘记录或再生装置
公开(公告)号：JP2006313588A
公开(公告)日：2006-11-16
申请号：JP2005135308
申请日：2005-05-06
Inventor： ISHIMOTO TSUTOMU
IPC: G11B7/09
Abstract: PROBLEM TO BE SOLVED: To provide a servo controller capable of performing highly accurate servo control. SOLUTION: A subtractor 3 subtracts an observation signal y(t) from a target signal r(t) and outputs a remaining error signal e(t) obtained by (r(t)-y(t)) and supplies it to an auxiliary controller 4. The auxiliary controller 4 obtains an extraction signal consisting of a rotational synchronous signal formed by reducing a non-rotational synchronous component from the remaining error signal by using an adaptive linear spectrum emphasizer or an adaptive linear estimator and supplies the extraction signal to a control object 7 in parallel with a main controller 5. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：提供能够执行高精度伺服控制的伺服控制器。 解决方案：减法器3从目标信号r（t）中减去观测信号y（t），并输出由（r（t）-y（t））获得的剩余误差信号e（t） 辅助控制器4通过使用自适应线性频谱增强器或自适应线性估计器获得由通过从剩余误差信号减小非旋转同步分量而形成的旋转同步信号的提取信号，并提供该提取信号 向与主控制器5并行的控制对象7发信号。（C）2007，JPO＆INPIT
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12.发明专利Optical pickup device, optical recording/reproducing apparatus and gap detection method 审中-公开光学拾取装置，光学记录/再现装置和检测方法
公开(公告)号：JP2006004596A
公开(公告)日：2006-01-05
申请号：JP2005136559
申请日：2005-05-09
Inventor： ISHIMOTO TSUTOMU , SAITO KIMIHIRO
Abstract: PROBLEM TO BE SOLVED: To provide an optical pickup device, an optical recording/reproducing apparatus and a tilt detection method in which tilt control is automatically conducted without arranging an external sensor that is a separate body with respect to the optical pickup in the optical pickup device and the optical recording/reproducing apparatus that conducts recording and/or reproducing by near field light beams. SOLUTION: The optical pickup device is provided with: a light source 3; an optical section 41 which irradiates a plurality of light beams from the light source 3 onto an optical recording medium 9; a head section 42 which is arranged to oppose the optical recording medium 9 and generates head light beams that are made into near field light beams and converges on the recording surface of the optical recording medium 9; and an optical detection section 45 which detects the interval between the head section 42 and the recording surface of the optical recording medium 9 from a plurality of returning light quantities from the optical recording medium 9. The optical pickup device, the optical recording/reproducing apparatus and the gap detecting method can conduct gap and tilt controls automatically without requiring the arrangement of the external sensor that is a separate body with respect to the optical pickup, are provided. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种光拾取装置，光学记录/再现装置和倾斜检测方法，其中自动进行倾斜控制而不将相对于光学拾取器作为分离的主体的外部传感器布置在 光学拾取装置和通过近场光束进行记录和/或再现的光学记录/再现装置。 光拾取装置设有：光源3; 将来自光源3的多个光束照射到光记录介质9上的光学部41; 头部42被布置成与光学记录介质9相对并产生被制成近场光束并会聚在光学记录介质9的记录表面上的头部光束; 以及光学检测部分45，其从光记录介质9的多个返回光中检测头部42和光记录介质9的记录表面之间的间隔。光拾取装置，光记录/重放装置 并且间隙检测方法可以自动进行间隙和倾斜控制，而不需要相对于光学拾取器设置作为单独主体的外部传感器。 版权所有（C）2006，JPO＆NCIPI
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13.发明专利Optical recording medium fixing device, fixing method of optical recording medium and optical recording and reproducing device 审中-公开光记录介质固定装置，光记录介质和光记录和再现装置的固定方法
公开(公告)号：JP2005332448A
公开(公告)日：2005-12-02
申请号：JP2004148014
申请日：2004-05-18
Inventor： ISHIMOTO TSUTOMU , KONDO TAKAO
IPC: G11B17/028
Abstract: PROBLEM TO BE SOLVED: To provide an optical recording medium fixing device in which the fixing of an optical recording medium is conducted without depending on surface characteristics of the signal recording surface and distortion caused on a disk is reduced.
SOLUTION: The fixing device is used to fix an optical recording medium 1 on a movable mechanism 20 and provided with a fixing mechanism 10 by which the medium 1 is fixed to the movable mechanism 20 while a non-signal recording surface 3 that is the opposite side of the signal recording surface 2 of the optical recording medium 1 is used as a reference surface.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提供一种光学记录介质固定装置，其中不依赖于信号记录表面的表面特性进行光学记录介质的固定，并且减小了在盘上引起的失真。 解决方案：定影装置用于将光学记录介质1固定在可移动机构20上，并且设置有固定机构10，通过该固定机构10将介质1固定到可移动机构20，而非信号记录表面3 将光记录介质1的信号记录表面2的相对侧用作基准表面。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2005216456A
公开(公告)日：2005-08-11
申请号：JP2004025827
申请日：2004-02-02
Inventor： ISHIMOTO TSUTOMU
IPC: G11B7/095
Abstract: PROBLEM TO BE SOLVED: To provide an optical disk unit which does not restrict an amount of eccentricity of an optical disk severely even when the recording density of the optical disk is increased and moreover can perform tracking correctly even when the amount of eccentricity of the optical disk is large and to provided a control method therefor.
SOLUTION: In the optical disk unit 1, periodic amount of eccentricity of tracks on a disk 47 is estimated beforehand using an eccentricity sensor 14 and tracking is controlled based on the estimated amount of eccentricity and a tracking error signal from a PD 37. As a result, even when the amount of eccentricity of the disk 47 or of tracks is large, the unit can perform tracking correctly. Thus, even when the recording density of an optical disk is increased, it becomes unnecessary to restrict the amount of eccentricity of the optical disk severely and burdens in manufacturing stages can be also reduced.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：即使当光盘的记录密度增加时也不会严格地限制光盘的偏心量，并且即使当偏心量也能够正确地进行跟踪时，提供一种光盘单元 的光盘，并且提供了一种控制方法。 解决方案：在光盘单元1中，使用偏心传感器14预先估计磁盘47上的磁道的周期性偏心量，并且基于估计的偏心量和来自PD 37的跟踪误差信号来控制跟踪 结果，即使当盘47或轨道的偏心量大时，该单元也可以正确地执行跟踪。 因此，即使当光盘的记录密度增加时，也不必严重地限制光盘的偏心量，并且也可以减少制造阶段的负担。 版权所有（C）2005，JPO＆NCIPI
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15.发明专利
公开(公告)号：JP2004342204A
公开(公告)日：2004-12-02
申请号：JP2003136435
申请日：2003-05-14
Inventor： ISHIMOTO TSUTOMU
Abstract: PROBLEM TO BE SOLVED: To execute smooth recording/reproducing operations in addition to the reduction of a system by reconstituting the input signals in the manner of giving redundancy to each of the input signals and recording them on a single optical disk.
SOLUTION: In an optical recording apparatus 1 for recording an information signal on at least each recording layer as to an optical disk 2 whereon a plurality of recording layers are successively stacked through transparent layers, the input signal is reconstituted to the information signals corresponding to respective recording layers of the optical disk 2, the redundancy is given among the reconstituted information signals, and these signals are recorded on respective recording layers on the optical disk.
COPYRIGHT: (C)2005,JPO&NCIPI-
Patent Agency Ranking
公开(公告)号：JP2004340748A
公开(公告)日：2004-12-02
申请号：JP2003137764
申请日：2003-05-15
Inventor： ISHIMOTO TSUTOMU
IPC: G01B11/00 , G11B7/00 , G11B7/0037 , G11B7/09 , G11B7/095
CPC classification number: G11B7/0948 , G11B7/00375 , G11B7/0956
Abstract: PROBLEM TO BE SOLVED: To measure displacement of an optical disk highly accurately with an extremely simple constitution, and to execute recording and reproduction processing, while controlling a focus to the displacement of the optical disk. SOLUTION: Laser light is irradiated from the side toward a circumferential side part of the mounted optical disk 2, and return light from the circumferential side part irradiated with the laser light is received, and the displacement of the optical disk 2 is measured based on the quantity of the received return light. Focus adjustment to an information recording face is executed according to the measured displacement of the optical disk. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：以非常简单的结构高精度地测量光盘的位移，并且在控制对光盘的位移的焦点的同时执行记录和再现处理。
解决方案：从安装光盘2的侧面朝向圆周侧部分照射激光，并且接收到从激光照射的圆周侧部分返回的光，并且测量光盘2的位移 基于所接收的返回光的数量。 根据测量的光盘位移来执行对信息记录面的聚焦调整。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2004181277A
公开(公告)日：2004-07-02
申请号：JP2002347816
申请日：2002-11-29
Inventor： NAKAO ISAMU , ISHIMOTO TSUTOMU , URYU MASARU , OHASHI YOSHIO , KONDO TAKAO , FURUKI MOTOHIRO , YAMAMOTO MASANOBU
CPC classification number: B41J2/14 , B41J2002/041 , B41J2202/15
Abstract: PROBLEM TO BE SOLVED: To provide a drop discharge device which is easy of nozzle replacement and washing without exposing liquid to a high temperature and a high pressure and can be driven at a high frequency by a low voltage. SOLUTION: In the drop discharge device 1, by the change in a magnetic field generated by a fixed primary coil 210, and an induction current is produced in a cylindrical conductive member 230 which is a secondary coil. By the interaction between the induction current and a static magnetic field applied in advance by an annular magnetic circuit 220, the member 230 is moved in the liquid discharge direction. The member 230 is formed as a movement member 140 integrally with the front 122 of a liquid chamber 130. When the member 230 is moved, the front 122 with a discharge opening 123 formed is moved to change the volume of the liquid chamber 130 storing the liquid to be discharged. As a result, the liquid stored in the liquid chamber 130 is pressurized to be discharged from the opening 123. COPYRIGHT: (C)2004,JPO&NCIPI
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公开(公告)号：JP2004030821A
公开(公告)日：2004-01-29
申请号：JP2002187663
申请日：2002-06-27
Inventor： ISHIMOTO TSUTOMU
Abstract: PROBLEM TO BE SOLVED: To provide a signal recording apparatus which quickly tracks an optical means to a near field range without incurring collision of the optical means due to overshoot with a medium, and also to provide a signal reproducing apparatus and method. SOLUTION: A comparator 20 compares a full reflection return luminous quantity 6 with a gap servo threshold value to discriminate whether a SIL stays in a far field range or a near field range and activates a switch 24 depending on the result of comparison, and the switch 24 selects operations of an approach speed generating section 23 and a gap servo target value generating section 25. The gap servo target value generating section 25 outputs a gap servo target value to interpolate a value between a gap servo final target value and the gap servo start threshold value that is set in a way that a point when the SIL moves from the far field range to the near field range is selected to be a start point of a start pulse, and the SIL is subjected to tracking control using the gap servo target value that temporally changes in this way. COPYRIGHT: (C)2004,JPO
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公开(公告)号：JP2011146092A
公开(公告)日：2011-07-28
申请号：JP2010005737
申请日：2010-01-14
Inventor： ISHIMOTO TSUTOMU
Abstract: PROBLEM TO BE SOLVED: To determine whether a desired layer is subjected to focus servo even when layer identification information is not recorded in each of recording layers. SOLUTION: On the basis of a drive signal component of a focus actuator obtained when focus servo control is on, a transmission function of the focus actuator and a focus error signal obtained when the focus servo control is on, a displacement signal is generated that shows the amount of displacement in the focus direction of a lens (focus lens) to be driven by the focus actuator to vary the focusing position of the light, to extract a low frequency component of the displacement signal. The low-frequency component of the displacement signal is extracted to obtain an offset of the focus lens for layer selection. On the basis of the low frequency component of the displacement signal, whether the desired layer (where data are recorded or reproduced) is subjected to focus servo. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：即使在每个记录层中没有记录层识别信息时，也可以确定所需层是否受到聚焦伺服。 解决方案：基于聚焦伺服控制打开时获得的聚焦致动器的驱动信号分量，聚焦致动器的传输功能和聚焦伺服控制打开时获得的聚焦误差信号，位移信号为 生成，其示出了由聚焦致动器驱动的透镜（聚焦透镜）的聚焦方向上的位移量，以改变光的聚焦位置，以提取位移信号的低频分量。 提取位移信号的低频分量以获得用于层选择的聚焦透镜的偏移。 基于位移信号的低频分量，是否对所需层（数据进行记录或再现）进行聚焦伺服。 版权所有（C）2011，JPO＆INPIT
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20.发明专利Short pulse light source, laser beam emitting method, optical device, optical disk drive, and optical pickup 有权短脉冲光源，激光束发射方法，光学器件，光盘驱动器和光学拾取
公开(公告)号：JP2010086608A
公开(公告)日：2010-04-15
申请号：JP2008255022
申请日：2008-09-30
Inventor： ISHIMOTO TSUTOMU , FUJIIE KAZUHIKO
CPC classification number: H01S5/06216 , B82Y10/00 , G11B7/00736 , G11B7/127 , G11B7/1275 , G11B7/247 , G11B7/248 , G11B2007/24606 , H01S5/06835
Abstract: PROBLEM TO BE SOLVED: To freely adjust a period of emission of a semiconductor laser. SOLUTION: In order to emit a pulsed light which is the pulsed laser beam LL from the semiconductor laser 3, a laser driving voltage Dj which is a pulsed driving voltage DJw generated based on a pulsed signal SL is applied to the semiconductor laser 3. A short pulsed light source 51 changes the voltage period TS which is an interval of the produced signal pulses SLw in the pulsed signal SL by varying the voltage period TV as an interval of the pulsed driving voltage DJw. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：自由调节半导体激光器的发射周期。 解决方案：为了从半导体激光器3发射作为脉冲激光束LL的脉冲光，将基于脉冲信号SL产生的脉冲驱动电压DJw的激光驱动电压Dj施加到半导体激光器 短脉冲光源51通过改变作为脉冲驱动电压DJw的间隔的电压周期TV来改变作为脉冲信号SL中产生的信号脉冲SLw的间隔的电压周期TS。 版权所有（C）2010，JPO＆INPIT
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