专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08004956B2 Optical disc drive, optical pickup and optical component used therefor 失效
标题翻译：光盘驱动器，光拾取器和用于此的光学元件
公开(公告)号：US08004956B2
公开(公告)日：2011-08-23
申请号：US12053797
申请日：2008-03-24
申请人： Fumio Isshiki , Katsuhiko Izumi
发明人： Fumio Isshiki , Katsuhiko Izumi
IPC分类号： G11B7/135
CPC分类号： G11B7/1275 , G11B7/1356 , G11B7/22 , G11B2007/0006 , G11B2007/0013
摘要： Provided are an optical pick up and an optical component used for the optical pickup which are capable of preventing or restraining occurrence of deviation and unbalance which are caused by assembly errors during manufacturing of optical components, a temperature variation or the like. The optical pickup comprises a laser, a polarization changeover element for changing over a direction of polarization of an optical beam emitted from the laser, a beam splitting element for splitting the laser beam into a plurality of optical paths in accordance with a direction of a polarization, a plurality of objective lenses for focusing laser beams onto a recording layer of the optical disc, a rise-up mirror, and a plurality of coupling lenses arranged respectively intermediate of the plurality of optical paths led to the plurality of objective lenses. The rise-up mirror is arranged intermediate of the plurality of optical paths led to the plurality of objective lenses and adapted to be used common to respective optical beams on the plurality of optical paths. The plurality of the coupling lenses are coupled to and held on one and the same drive portion.
摘要翻译：提供了一种用于光学拾取器的光拾取器和光学部件，其能够防止或限制由光学部件制造期间的组装误差，温度变化等引起的偏差和不平衡的发生。光拾取器包括激光器，用于切换从激光器发射的光束的偏振方向的偏振转换元件，用于根据偏振方向将激光束分成多个光路的分束元件用于将激光束聚焦到光盘的记录层上的多个物镜，上升反射镜和分别设置在被引导到多个物镜的多个光路之间的多个耦合透镜。上升反射镜被布置在被引导到多个物镜的多个光路中间，并且适用于多个光路上的相应光束共同使用。多个耦合透镜联接并保持在同一个驱动部分上。

2. 发明授权

US07310290B2 Tracking learning/adjusting method and optical disk device 有权
标题翻译：跟踪学习/调整方法和光盘设备
公开(公告)号：US07310290B2
公开(公告)日：2007-12-18
申请号：US10933947
申请日：2004-09-03
申请人： Yoshinori Ishikawa , Taku Hoshizawa , Fumio Isshiki
发明人： Yoshinori Ishikawa , Taku Hoshizawa , Fumio Isshiki
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/0941
摘要： Even in an optical disk which includes, within a single disk, plural record areas whose track-pitches differ from each other, a tracking parameter is adjusted in a short time and with a high accuracy. At first, an optical pickup for reading information recorded in the optical disk is displaced into a reference track-pitch area which is one of the plural record areas of the optical disk. Moreover, the tracking gain is adjusted so that the tracking servo gain in this area may exhibit a predetermined characteristic. Also, the value thus acquired is recorded into, e.g., a non-volatile memory. After that, based on the tracking parameter learned/adjusted in the reference track-pitch area, the tracking parameter in another track-pitch area is calculated using the track-pitch ratio therebetween. Thereby it becomes possible to adjust the tracking parameter in a short time and with a high accuracy.
摘要翻译：即使在单个盘中包括轨道间距彼此不同的多个记录区域的光盘中，也可以在短时间内以高精度调整跟踪参数。首先，用于读取记录在光盘中的信息的光学拾取器被移动到作为光盘的多个记录区域之一的参考轨道间距区域中。此外，调整跟踪增益，使得该区域中的跟踪伺服增益可以呈现预定特性。此外，由此获得的值被记录到例如非易失性存储器中。之后，基于在参考轨道间距区域中学习/调整的跟踪参数，使用它们之间的轨道间距比来计算另一轨道间距区域中的跟踪参数。由此，可以在短时间内和高精度地调整跟踪参数。

3. 发明授权

US07307927B2 Optical disk apparatus and method for recording and reproducing an optical disk 有权
标题翻译：用于记录和再现光盘的光盘装置和方法
公开(公告)号：US07307927B2
公开(公告)日：2007-12-11
申请号：US10879779
申请日：2004-06-30
申请人： Shinji Fujita , Fumio Isshiki , Nobuyuki Maeda
发明人： Shinji Fujita , Fumio Isshiki , Nobuyuki Maeda
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/1369 , G11B7/1378 , G11B2007/13727
摘要： A method and an optical disk apparatus that can accurately and stably correct the spherical aberration even for a blank write-once optical disk and can detect a spherical aberration error signal with a simple construction of parts in real time. In a blank write-once disk 20, the tracking servo is switched to an inoperative state, push-pull signals from outputs of the photodetector 12 are detected in a state of “in focus” and in a state of “out focus,” respectively, by a push-pull signal generation circuit 34, and.the amplitudes of these push-pull signals are subjected to difference calculation in a spherical aberration error detector 31 to obtain a spherical aberration error signal A. Then, the spherical aberration is corrected with this spherical aberration error signal A, and subsequently a specific pattern signal is recorded in a trial writing area, this signal is reproduced in the state of “in focus” and in the state of “out focus,” respectively, the amplitude of each reproduced signal is acquired by a reproduced signal generation circuit 32, these amplitudes are subjected to difference calculation in the spherical aberration error detector 31 to obtain a spherical aberration error signal B. The spherical aberration is corrected with this.
摘要翻译：一种方法和光盘装置，即使对于空白一次写入光盘也能够准确且稳定地校正球面像差，并且可以实时地以简单的部件构造来检测球面像差误差信号。在空白的一次写入盘20中，跟踪伺服被切换到不工作状态，在“对焦”的状态下分别检测来自光检测器12的输出的推挽信号，处于“熄焦”的状态通过推挽信号发生电路34，并且在球面像差误差检测器31中对这些推挽信号的振幅进行差分计算，以获得球面像差误差信号A.然后，用该球面像差误差信号A以及随后的特定图案信号被记录在试写区域中，该信号分别以“对焦”的状态再现，并且在“对焦”的状态下分别再现信号由再现信号生成电路32获取，这些幅度在球面像差误差检测器31中进行差分计算，以获得球面像差误差信号B.球面像差为用此修正。

4. 发明授权

US07187643B2 Information recording medium, information reproducing method, and information reproducing apparatus 有权
标题翻译：信息记录介质，信息再现方法和信息再现装置
公开(公告)号：US07187643B2
公开(公告)日：2007-03-06
申请号：US10335896
申请日：2003-01-03
申请人： Fumio Isshiki , Tetsuya Nishida
发明人： Fumio Isshiki , Tetsuya Nishida
IPC分类号： G11B7/24
CPC分类号： G11B20/10 , G11B7/005 , G11B7/24088 , G11B20/1217 , G11B2020/1298
摘要： A high recording-density and highly reliable optical disc according to the two-dimensional PRML system is provided in which periodic signal fluctuations in the readout signal caused by an overall positional displacement of pits between adjacent tracks can be detected at each sampling clock timing and can be tracked and compensated. Two-dimensional inter-symbol interference is compensated during the production and recording of the pattern of the medium. The readout signal is compensated by a process of multi-value tracking before symbols are extracted from the signal.
摘要翻译：提供了根据二维PRML系统的高记录密度和高可靠性光盘，其中可以在每个采样时钟定时检测由相邻轨道之间的凹坑的总位置偏移引起的读出信号中的周期信号波动，并且可以被跟踪和补偿。在制作和记录介质图案期间补偿二维符号间干扰。在从信号提取符号之前，通过多值跟踪的处理来补偿读出信号。

5. 发明申请

US20130028063A1 OPTICAL DISK APPARATUS 失效
标题翻译：光盘设备
公开(公告)号：US20130028063A1
公开(公告)日：2013-01-31
申请号：US13558393
申请日：2012-07-26
申请人： Fumio ISSHIKI
发明人： Fumio ISSHIKI
IPC分类号： G11B7/00
CPC分类号： G11B7/094 , G11B7/0903 , G11B7/0941 , G11B7/0945
摘要： The amplitude deviation of a tracking error signal in an optical disk apparatus is reliably corrected by processing signals at low costs. A servo signal generator generates a tracking error signal and a lens error signal from a photodetected signal. A lens error deviation signal memory circuit stores the lens error signal generated at the servo signal generator, and reproduces the one-turn deviation of the lens error signal. A tracking error signal corrector learns an amplitude correcting value for the tracking error signal from the tracking error signal detected in reproducing the one-turn deviation of the lens error signal, and stores the amplitude correcting value in a correcting signal generator.
摘要翻译：通过以低成本处理信号可靠地校正光盘装置中的跟踪误差信号的振幅偏差。伺服信号发生器从光电检测信号产生跟踪误差信号和透镜误差信号。镜头误差偏差信号存储电路存储在伺服信号发生器产生的镜头误差信号，再现镜头误差信号的单圈偏差。跟踪误差信号校正器从再现镜头误差信号的一圈偏差中检测到的跟踪误差信号学习跟踪误差信号的幅度校正值，并将幅度校正值存储在校正信号发生器中。

6. 发明申请

US20110063957A1 OPTICAL DISK APPARATUS 失效
标题翻译：光盘设备
公开(公告)号：US20110063957A1
公开(公告)日：2011-03-17
申请号：US12776480
申请日：2010-05-10
申请人： Fumio ISSHIKI , Hideki Maruyama
发明人： Fumio ISSHIKI , Hideki Maruyama
IPC分类号： G11B20/18
CPC分类号： G11B7/094 , G11B7/0901 , G11B7/0903 , G11B2007/0013
摘要： In an optical disk apparatus, an optical pickup includes an actuator for driving an object lens, and a sensed signal output part for making it possible to generate a tracking error signal and a lens error signal by addition/subtraction, and a signal processor includes a servo signal generator for generating a tracking error signal and a lens error signal on the basis of a signal supplied from the sensed signal output part, and a tracking offset correction quantity signal generator supplied with the lens error signal to output a tracking offset correction quantity signal. DC (direct current) offset correction is conducted by conducting addition/subtraction between the tracking error signal and both the lens error signal and the tracking offset correction quantity signal.
摘要翻译：在光盘装置中，光拾取器包括用于驱动物镜的致动器和用于使得可以通过加/减产生跟踪误差信号和透镜误差信号的感测信号输出部分，并且信号处理器包括：伺服信号发生器，用于基于从感测信号输出部分提供的信号产生跟踪误差信号和透镜误差信号;以及跟踪偏移校正量信号发生器，其被提供有透镜误差信号，以输出跟踪偏移校正量信号。通过在跟踪误差信号与透镜误差信号和跟踪偏移校正量信号两者之间进行加法/减法来进行DC（直流）偏移校正。

7. 发明申请

US20090175140A1 OPTICAL DISC APPARATUS 审中-公开
标题翻译：光盘设备
公开(公告)号：US20090175140A1
公开(公告)日：2009-07-09
申请号：US12343611
申请日：2008-12-24
申请人： Toshiteru Nakamura , Motoyuki Suzuki , Fumio Isshiki
发明人： Toshiteru Nakamura , Motoyuki Suzuki , Fumio Isshiki
IPC分类号： G11B20/10
CPC分类号： G11B20/10009 , G11B7/0901 , G11B2007/0013 , G11B2220/235 , G11B2220/2537
摘要： An optical disc apparatus which detects an envelope of a tracking error signal in a record or playback mode of an optical disc having recording layers of a multilayer structure, which quantifies a variation caused by multilayer interference (to ΔTES), and which restricts a recording or playback rate when a relationship ΔTES>Vth is satisfied for a predetermined threshold Vth. With such an arrangement, degradation of a recording or reproducing performance or generation of running-off-track resulting from a variation in the tracking error signal caused by stray light reflected by ones of recording layers of the optical disc which are not a recording or reproducing target layer can be suppressed, and a good recording or playback quality can be obtained even in such an optical disc having the plurality of recording layers laminated therein.
摘要翻译：一种光盘装置，其检测具有多层结构的记录层的光盘的记录或重放模式中的跟踪误差信号的包络，其量化由多层干涉（对DeltaTES）引起的变化，并且限制了记录或当对于预定阈值Vth满足DeltaTES> Vth的关系时的重放速率。通过这样的布置，由于由不是记录或再现的光盘的记录层反射的杂散光引起的跟踪误差信号的变化而导致记录或再现性能的劣化或产生跑步轨迹可以抑制目标层，并且即使在其中层叠有多个记录层的光盘中也可以获得良好的记录或播放质量。

8. 发明申请

US20090086611A1 Optical Disc Drive, Optical Pickup and Optical Component Used Therefor 失效
标题翻译：光盘驱动器，光拾取器和用于其的光学元件
公开(公告)号：US20090086611A1
公开(公告)日：2009-04-02
申请号：US12053797
申请日：2008-03-24
申请人： Fumio ISSHIKI , Katsuhiko Izumi
发明人： Fumio ISSHIKI , Katsuhiko Izumi
IPC分类号： G11B7/135
CPC分类号： G11B7/1275 , G11B7/1356 , G11B7/22 , G11B2007/0006 , G11B2007/0013
摘要： Provided are an optical pick up and an optical component used for the optical pickup which are capable of preventing or restraining occurrence of deviation and unbalance which are caused by assembly errors during manufacturing of optical components, a temperature variation or the like. The optical pickup comprises a laser, a polarization changeover element for changing over a direction of polarization of an optical beam emitted from the laser, a beam splitting element for splitting the laser beam into a plurality of optical paths in accordance with a direction of a polarization, a plurality of objective lenses for focusing laser beams onto a recording layer of the optical disc, a rise-up mirror, and a plurality of coupling lenses arranged respectively intermediate of the plurality of optical paths led to the plurality of objective lenses. The rise-up mirror is arranged intermediate of the plurality of optical paths led to the plurality of objective lenses and adapted to be used common to respective optical beams on the plurality of optical paths. The plurality of the coupling lenses are coupled to and held on one and the same drive portion.
摘要翻译：提供了一种用于光学拾取器的光拾取器和光学部件，其能够防止或限制由光学部件制造期间的组装误差，温度变化等引起的偏差和不平衡的发生。光拾取器包括激光器，用于切换从激光器发射的光束的偏振方向的偏振转换元件，用于根据偏振方向将激光束分成多个光路的分束元件用于将激光束聚焦到光盘的记录层上的多个物镜，上升反射镜和分别设置在被引导到多个物镜的多个光路之间的多个耦合透镜。上升反射镜被布置在被引导到多个物镜的多个光路中间，并且适用于多个光路上的相应光束共同使用。多个耦合透镜联接并保持在同一个驱动部分上。

9. 发明申请

US20050052964A1 Optical disk apparatus and optical pickup 有权
标题翻译：光盘装置和光学拾取器
公开(公告)号：US20050052964A1
公开(公告)日：2005-03-10
申请号：US10879779
申请日：2004-06-30
申请人： Shinji Fujita , Fumio Isshiki , Nobuyuki Maeda
发明人： Shinji Fujita , Fumio Isshiki , Nobuyuki Maeda
IPC分类号： G11B7/085 , G11B7/00 , G11B7/09 , G11B7/125 , G11B7/135
CPC分类号： G11B7/13925 , G11B7/1369 , G11B7/1378 , G11B2007/13727
摘要： A method and an optical disk apparatus that can accurately and stably correct the spherical aberration even for a blank write-once optical disk and can detect a spherical aberration error signal with a simple construction of parts in real time. In a blank write-once disk 20, the tracking servo is switched to an inoperative state, push-pull signals from outputs of the photodetector 12 are detected in a state of “in focus” and in a state of “out focus,” respectively, by a push-pull signal generation circuit 34, and the amplitudes of these push-pull signals are subjected to difference calculation in a spherical aberration error detector 31 to obtain a spherical aberration error signal A. Then, the spherical aberration is corrected with this spherical aberration error signal A, and subsequently a specific pattern signal is recorded in a trial writing area, this signal is reproduced in the state of “in focus” and in the state of “out focus,” respectively, the amplitude of each reproduced signal is acquired by a reproduced signal generation circuit 32, these amplitudes are subjected to difference calculation in the spherical aberration error detector 31 to obtain a spherical aberration error signal B. The spherical aberration is corrected with this.
摘要翻译：一种方法和光盘装置，即使对于空白一次写入光盘也能够准确且稳定地校正球面像差，并且可以实时地以简单的部件构造来检测球面像差误差信号。在空白的一次写入盘20中，跟踪伺服被切换到不工作状态，在“对焦”的状态下分别检测来自光检测器12的输出的推挽信号，处于“熄焦”的状态通过推挽信号产生电路34，并且在球面像差误差检测器31中对这些推挽信号的幅度进行差分计算，以获得球面像差误差信号A.然后，用这种方法校正球面像差球面像差误差信号A，随后的特定图案信号被记录在试写区域中，该信号分别以“对焦”的状态再现，并且在“对焦”的状态下再现，每个再现信号的幅度由再现信号生成电路32获取，在球面像差误差检测器31中对这些振幅进行差分运算，得到球面像差误差信号B.球面像差为co 与此搭起来

10. 发明授权

US06687013B2 Laser interferometer displacement measuring system, exposure apparatus, and electron beam lithography apparatus 失效
标题翻译：激光干涉仪位移测量系统，曝光设备和电子束光刻设备
公开(公告)号：US06687013B2
公开(公告)日：2004-02-03
申请号：US09818713
申请日：2001-03-28
申请人： Fumio Isshiki , Masakazu Sugaya , Tatsundo Suzuki , Masahiro Yamaoka , Sumio Hosaka
发明人： Fumio Isshiki , Masakazu Sugaya , Tatsundo Suzuki , Masahiro Yamaoka , Sumio Hosaka
IPC分类号： G01B1102
CPC分类号： G03F7/70775 , H01J37/3045 , H01J2237/20292
摘要： An absolute accuracy in the range from ±2 nm to ±1 nm for a displacement measurement value is provided by a laser interferometer displacement measuring system. A fluctuating error component that appears corresponding to the wave cycle of laser light is detected and subtracted from the measurement value while a stage is moving, thereby providing a high accuracy.
摘要翻译：激光干涉仪位移测量系统提供了位移测量值在±2 nm至±1 nm范围内的绝对精度。在阶段移动时，从测量值中检测出相应于激光波周期出现的波动误差分量，从而提供高精度。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式