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21. 发明授权

US08199625B2 Laser driving device and method with control signal patterns, reference pulses, and changing pulses 失效
标题翻译：具有控制信号图案，参考脉冲和变化脉冲的激光驱动装置和方法
公开(公告)号：US08199625B2
公开(公告)日：2012-06-12
申请号：US12659318
申请日：2010-03-04
申请人： Tsutomu Kurihara , Motoi Kimura , Koichi Yokoyama
发明人： Tsutomu Kurihara , Motoi Kimura , Koichi Yokoyama
IPC分类号： G11B7/00 , G11B7/0045
CPC分类号： G11B7/0062 , G11B7/1263 , H01S5/0428 , H01S5/06835
摘要： A laser driving system and method using a write strategy technique where a write strategy signal is generated based on a set of pulses that include timing information and power level information. The set of pulses originate from a set of transmission signals that embody spaces and marks for both starting and changing the set of pulses.
摘要翻译：一种使用写策略技术的激光驱动系统和方法，其中基于包括定时信息和功率电平信息的一组脉冲来产生写策略信号。这组脉冲源自一组传输信号，其中包含用于启动和改变脉冲组的空间和标记。

22. 发明申请

US20110075525A1 Hard disk apparatus and driving method therefor 有权
标题翻译：硬盘装置及其驱动方法
公开(公告)号：US20110075525A1
公开(公告)日：2011-03-31
申请号：US12805187
申请日：2010-07-16
申请人： Motoi Kimura
发明人： Motoi Kimura
IPC分类号： G11B11/00
CPC分类号： G11B5/02 , G11B20/10009 , G11B20/10222 , G11B20/10277 , G11B20/10296 , G11B2005/0005 , G11B2005/0021 , G11B2220/2516
摘要： Disclosed herein is a hard disk apparatus, including: a magnetic recording medium; a recording head adapted to record information on the magnetic recording medium; a semiconductor laser adapted to be controlled for light emission in a cycle of a recording clock to irradiate a light spot upon the magnetic recording medium to carry out thermal assistance in magnetic recording by the recording head; a laser driving circuit adapted to drive the semiconductor laser at a timing and with optical power in accordance with a light emission timing signal and a laser power controlling signal; and a controller adapted to set laser power in accordance with at least one of characteristics of the magnetic recording medium, semiconductor laser and recording head and output the laser power controlling signal to the laser driving circuit so that the laser power is adaptively varied.
摘要翻译：这里公开了一种硬盘装置，包括：磁记录介质; 记录头，适于在磁记录介质上记录信息; 半导体激光器，其适于被控制在记录时钟的周期中的发光，以将光点照射在磁记录介质上，以通过记录头进行磁记录的热辅助; 激光驱动电路，其适于根据发光定时信号和激光功率控制信号在定时和光功率下驱动所述半导体激光器; 以及控制器，其适于根据磁记录介质，半导体激光器和记录头的特性中的至少一个来设置激光功率，并将激光功率控制信号输出到激光驱动电路，使得激光功率自适应地变化。

23. 发明申请

US20100054102A1 Laser driving device and optical apparatus 有权
标题翻译：激光驱动装置和光学装置
公开(公告)号：US20100054102A1
公开(公告)日：2010-03-04
申请号：US12461408
申请日：2009-08-11
申请人： Tsutomu Kurihara , Motoi Kimura , Koichi Yokoyama , Toshiaki Yoshihara
发明人： Tsutomu Kurihara , Motoi Kimura , Koichi Yokoyama , Toshiaki Yoshihara
IPC分类号： G11B7/00
CPC分类号： G11B7/0062
摘要： A laser driving device includes a storage unit that stores signal patterns for recording-waveform control representing level information of each divided driving signal to drive a laser device on a space and a mark based on the divided driving signals. Also, it includes a pulse generator that generates the reference pulse and the switching pulse based on a first transmission signal and a second transmission signal. The first transmission signal contains timing information for acquiring a reference pulse that represents a timing of repetitively switching between the space and the mark. The second transmission signal contains timing information for acquiring a switch pulse that represents a timing of switching the signals. Among level information for each of the signals in the storage, reference level information is read together with the reference pulse. Other level information after the reference level information is sequentially read for each switching pulse.
摘要翻译：激光驱动装置包括存储单元，其存储用于记录波形控制的信号图形，其表示基于划分的驱动信号的空间上的激光装置的驱动信号，并分别驱动激光装置。此外，它包括脉冲发生器，其基于第一传输信号和第二传输信号产生参考脉冲和切换脉冲。第一传输信号包含用于获取表示在空间和标记之间重复切换的定时的参考脉冲的定时信息。第二传输信号包含用于获取表示切换信号的定时的开关脉冲的定时信息。在存储器中的每个信号的电平信息中，参考电平信息与参考脉冲一起读取。对于每个切换脉冲，依次读取参考电平信息之后的其他电平信息。

24. 发明授权

US06891875B2 Optical disc device 失效
标题翻译：光盘设备
公开(公告)号：US06891875B2
公开(公告)日：2005-05-10
申请号：US10153486
申请日：2002-05-21
申请人： Toru Nagara , Motoi Kimura
发明人： Toru Nagara , Motoi Kimura
IPC分类号： G11B7/00 , G11B7/005 , G11B7/125 , G11B7/13 , G11B7/135 , G11B20/24 , H01L31/10 , H01S3/06
CPC分类号： G11B7/1263 , G11B7/005
摘要： An object of the present invention is to remove a laser beam source noise in an optical disc device.An optical disc device comprises: a laser beam source which outputs a laser beam, a reproducing signal beam-receiver which receives a signal beam from an optical disc and generates a reproducing signal, a beam-source monitoring beam-receiver which detects the laser beam from the laser beam source, and a beam splitter which divides the laser beam from the laser beam source into the beams to the reproducing signal beam-receiver and to the beam-source monitoring beam-receiver; an output signal from the beam-source monitoring beam-receiver being used for removing a noise contained in the reproducing signal from the reproducing signal beam-receiver through a noise cancellation calculation. In the configuration of the optical disc device, an output current of the beam-source monitoring beam-receiver is set so that a laser beam source noise caused by the laser beam source is greater than a circuit-related noise caused by a circuit including the beam receivers.
摘要翻译：本发明的目的是消除光盘装置中的激光束源噪声。光盘装置包括：输出激光束的激光束源，从光盘接收信号光束并产生再现信号的再现信号光束接收器，检测激光束的光束源监视光束接收器以及分束器，其将激光束从激光束源分割成光束到再现信号光束接收器和光束源监视光束接收器; 来自波束源监视波束接收器的输出信号用于通过噪声消除计算从再现信号波束接收器去除包含在再现信号中的噪声。在光盘装置的结构中，射束源监视用射线接收器的输出电流被设定为使得由激光束源产生的激光束源噪声大于由包括光束接收器。

25. 发明授权

US5764606A Tracking control apparatus for a multi-layer optical disc and method therefor 失效
标题翻译：多层光盘跟踪控制装置及其方法
公开(公告)号：US5764606A
公开(公告)日：1998-06-09
申请号：US762448
申请日：1996-12-09
申请人： Atsushi Fukumoto , Motoi Kimura , Yoshiaki Kato
发明人： Atsushi Fukumoto , Motoi Kimura , Yoshiaki Kato
IPC分类号： G11B11/10 , G11B7/09 , G11B7/095 , G11B11/105
CPC分类号： G11B7/0903 , G11B2007/0013 , G11B7/094
摘要： In a three-spot tracking control system for a multi-layer optical disc, stray light of the signal-reproducing main beam from a layer other than the layer being reproduced leaks into first and second photodetectors receiving the reflected beam of two auxiliary tracking controlling beams to render the tracking operation unstable. In order to overcome this drawback, a first photodetector detects one auxiliary reflected beam from one or the other of the information signal layers of a double-layer optical disc. The second photodetector detects the other reflected auxiliary beam from the information signal layer. A first upper envelope detector detects the upper envelope signal of the reflected auxiliary beam. A second upper envelope detector detects the upper envelope signal of the detection signal of the other reflected auxiliary beam. A first subtractor subtracts the detected output by the first upper envelope detector 6 from the detection signal of the first photodetector. A second subtractor subtracts the detected output by the second upper envelope detector from the detection signal of the second photodetector. A third subtractor performs subtraction between outputs of the first subtractor and the second subtractor.
摘要翻译：在用于多层光盘的三点跟踪控制系统中，来自再生层以外的层的信号再现主光束的杂散光泄漏到接收两个辅助跟踪控制光束的反射光束的第一和第二光电检测器以使跟踪操作不稳定。为了克服这个缺陷，第一光电检测器检测来自双层光盘的信息信号层中的一个或另一个的一个辅助反射光束。第二光电检测器从信息信号层检测另一反射辅助光束。第一上包络检测器检测反射的辅助光束的上包络信号。第二上包络检测器检测另一反射辅助光束的检测信号的上包络信号。第一减法器从第一光检测器的检测信号中减去第一上包络检测器6的检测输出。第二减法器从第二上包络检测器从第二光电探测器的检测信号中减去检测输出。第三减法器在第一减法器和第二减法器的输出之间执行减法。

26. 发明授权

US08369368B2 Laser driving device, laser driving method, optical unit, and light device 失效
标题翻译：激光驱动装置，激光驱动方法，光学装置和灯装置
公开(公告)号：US08369368B2
公开(公告)日：2013-02-05
申请号：US12659320
申请日：2010-03-04
申请人： Tsutomu Kurihara , Motoi Kimura , Koichi Yokoyama
发明人： Tsutomu Kurihara , Motoi Kimura , Koichi Yokoyama
IPC分类号： H01S3/00
CPC分类号： G11B7/1267 , G11B7/00456
摘要： Disclosed herein is a laser driving device including: a sample-hold section; a first pulse generating section; a second pulse generating section; a light emission waveform generating section; a storing section; and a sampling pulse generating section.
摘要翻译：本文公开了一种激光驱动装置，包括：样品保持部; 第一脉冲发生部分; 第二脉冲发生部分; 发光波形发生部; 存储部分; 和采样脉冲发生部分。

27. 发明授权

US08228773B2 Laser driving device and optical apparatus 有权
标题翻译：激光驱动装置和光学装置
公开(公告)号：US08228773B2
公开(公告)日：2012-07-24
申请号：US12461408
申请日：2009-08-11
申请人： Tsutomu Kurihara , Motoi Kimura , Koichi Yokoyama , Toshiaki Yoshihara
发明人： Tsutomu Kurihara , Motoi Kimura , Koichi Yokoyama , Toshiaki Yoshihara
IPC分类号： G11B7/00
CPC分类号： G11B7/0062
摘要： A laser driving device includes a storage unit that stores signal patterns for recording-waveform control representing level information of each divided driving signal to drive a laser device on a space and a mark based on the divided driving signals. Also, it includes a pulse generator that generates the reference pulse and the switching pulse based on a first transmission signal and a second transmission signal. The first transmission signal contains timing information for acquiring a reference pulse that represents a timing of repetitively switching between the space and the mark. The second transmission signal contains timing information for acquiring a switch pulse that represents a timing of switching the signals. Among level information for each of the signals in the storage, reference level information is read together with the reference pulse. Other level information after the reference level information is sequentially read for each switching pulse.
摘要翻译：激光驱动装置包括存储单元，其存储用于记录波形控制的信号图形，其表示基于划分的驱动信号的空间上的激光装置的驱动信号，并分别驱动激光装置。此外，它包括脉冲发生器，其基于第一传输信号和第二传输信号产生参考脉冲和切换脉冲。第一传输信号包含用于获取表示在空间和标记之间重复切换的定时的参考脉冲的定时信息。第二发送信号包含用于获取表示切换信号的定时的开关脉冲的定时信息。在存储器中的每个信号的电平信息中，参考电平信息与参考脉冲一起读取。对于每个切换脉冲，依次读取参考电平信息之后的其他电平信息。

28. 发明申请

US20100260028A1 Laser driving device, laser driving method, optical unit, and light device 失效
标题翻译：激光驱动装置，激光驱动方法，光学装置和灯装置
公开(公告)号：US20100260028A1
公开(公告)日：2010-10-14
申请号：US12659318
申请日：2010-03-04
申请人： Tsutomu Kurihara , Motoi Kimura , Koichi Yokoyama
发明人： Tsutomu Kurihara , Motoi Kimura , Koichi Yokoyama
IPC分类号： G11B7/00
CPC分类号： G11B7/0062 , G11B7/1263 , H01S5/0428 , H01S5/06835
摘要： A laser driving device includes: a first pulse generating section; a second pulse generating section; a light emission waveform generating section; and a light emission level pattern storing section.
摘要翻译：激光驱动装置包括：第一脉冲发生部; 第二脉冲发生部分; 发光波形发生部; 和发光级图形存储部。

29. 发明申请

US20060164955A1 Recording and playback apparatus and optical head 失效
公开(公告)号：US20060164955A1
公开(公告)日：2006-07-27
申请号：US11387832
申请日：2006-03-24
申请人： Noriaki Nishi , Hiroaki Mizuma , Motoi Kimura , Kenji Yamamoto , Masatoshi Nishino
发明人： Noriaki Nishi , Hiroaki Mizuma , Motoi Kimura , Kenji Yamamoto , Masatoshi Nishino
IPC分类号： G11B7/00
CPC分类号： G11B7/1263 , G11B7/128 , G11B7/1356 , G11B7/1369 , G11B7/1381
摘要： The light intensity of a light beam emitted from a light source is appropriately controlled when the light beam is transmitted through a variable optical coupling efficiency device in an optical head. During a read mode, the light beam from the light source is incident on an optical disk at an intensity relatively weaker than that of the light source. By switching the optical coupling efficiency of the variable optical coupling efficiency device between a write mode and a read mode, the light intensity directed to an optical recording medium is substantially varied from the write mode to the read mode. This arrangement eliminates the need for substantially increasing the optical output power ratio of the light source of write power to read power.

30. 发明授权

US6026071A Optical disk player 失效
标题翻译：光盘播放器
公开(公告)号：US6026071A
公开(公告)日：2000-02-15
申请号：US951849
申请日：1997-10-16
申请人： Motoi Kimura
发明人： Motoi Kimura
IPC分类号： G11B7/135 , G11B7/005 , G11B7/00 , G11B3/90
CPC分类号： G11B7/005
摘要： An optical disk player for obtaining a read data signal by the use of laser light beams incident on an optical disk, wherein any laser noise component included in the read data signal due to wavelength and power variation in the light beam incident on the optical disk can be suppressed efficiently and completely. The optical disk player comprises a first light receiver for producing a read output signal by detecting a light beam which is based on the laser light emitted from a semiconductor laser device to be incident on the optical disk and is reflected therefrom; a read signal processor for producing a read data signal on the basis of the read output signal; a second light receiver for partially detecting the light beam transmitted toward the optical disk to be incident thereon and producing a variation detection signal representative of any variation in the detected light beam; and a noise suppressor for reducing the laser noise component in the read data signal by first inverting the phase of the variation detection signal obtained from the second light receiver and then adding the phase-inverted signal to the read data signal outputted from the read signal processor.
摘要翻译：一种用于通过使用入射在光盘上的激光束获得读取数据信号的光盘播放器，其中由于入射在光盘上的光束中的波长和功率变化引起的读取数据信号中包括的任何激光噪声分量可以被有效地和完全地抑制。光盘播放器包括：第一光接收器，用于通过检测基于从半导体激光器件发射的激光入射在光盘上并被反射的光束产生读取输出信号; 读取信号处理器，用于根据读取的输出信号产生读取数据信号; 第二光接收器，用于部分地检测朝向光盘传入的光束以入射到其上，并产生表示检测到的光束中的任何变化的变化检测信号; 以及噪声抑制器，用于通过首先反转从第二光接收器获得的变化检测信号的相位，然后将相位反转的信号加到读信号处理器输出的读数据信号上，从而降低读数据信号中的激光噪声分量。

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