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31. 发明授权

US5764400A Optical modulator 失效
标题翻译：光调制器
公开(公告)号：US5764400A
公开(公告)日：1998-06-09
申请号：US803377
申请日：1997-02-20
申请人： Tomoyuki Itou , Hisashi Takamatsu , Toshihiro Otani , Yoshinobu Kubota , Yasuhiro Omori
发明人： Tomoyuki Itou , Hisashi Takamatsu , Toshihiro Otani , Yoshinobu Kubota , Yasuhiro Omori
IPC分类号： G02F1/035 , G02F1/01 , G02F1/225 , H01S3/00
CPC分类号： G02F1/225 , G02F1/0123 , G02F2201/58
摘要： Disclosed herein is an optical modulator module including an optical waveguide structure of a Mach-Zehnder type, for example, an electrode for switching a coupling mode where an output beam is obtained from the optical waveguide structure and a leakage mode where a leakage beam deflects from the optical waveguide structure, a photodetector having a photodetecting surface for receiving the leakage beam, and a mechanism for converting a beam parameter of the leakage beam so as to prevent close contact of the photodetecting surface with the optical waveguide structure. The optical modulator module allows monitoring of optical power by the use of the leakage beam and is improved in manufacturability.
摘要翻译：这里公开了一种光调制器模块，其包括马赫 - 策德尔型的光波导结构，例如用于切换从光波导结构获得输出光束的耦合模式的电极和泄漏光束从光波导结构，具有用于接收泄漏光束的受光面的光检测器，以及用于转换漏光束的光束参数的机构，以防止受光面与光波导结构的紧密接触。光调制器模块允许通过使用泄漏光束来监视光功率并且在可制造性方面得到改善。

32. 发明授权

US5457791A Storage system and method of control 失效
标题翻译：存储系统和控制方法
公开(公告)号：US5457791A
公开(公告)日：1995-10-10
申请号：US57812
申请日：1993-05-07
申请人： Yoshiko Matsumoto , Hisashi Takamatsu , Hisaharu Takeuchi , Yoshihiro Uchiyama , Mamoru Tohchi , Hisayoshi Kawabata , Takao Sato
发明人： Yoshiko Matsumoto , Hisashi Takamatsu , Hisaharu Takeuchi , Yoshihiro Uchiyama , Mamoru Tohchi , Hisayoshi Kawabata , Takao Sato
IPC分类号： G11B20/10 , G06F3/06 , G06F11/10 , G11B20/12 , G11B20/18 , G06F11/00
CPC分类号： G06F11/1076 , G06F11/1008 , G06F3/0601 , G11B20/1883 , G06F2003/0697 , G11B2220/20
摘要： A storage system comprises a disc drive unit including a plurality of logical drive groups each having a plurality of physical drives, and a disc drive control unit for controlling the information transfer between the disc drive unit and the host system. The logical data arriving from the host system is divided into a plurality of continuous data blocks, from which redundant data is prepared for data restoration. The redundant data is added to the continuous data blocks to provide updated logical data. The storage system is controlled in such a way as to write the updated logical data into a plurality of physical drives. In the case where a fault develops in any of the data blocks of the physical drives to be accessed, redundant data is generated from the updated logical data. The data block of the updated logical data of the physical drive corresponding to the data blocks that has not developed a fault, among the data blocks and the redundant data making up the updated logical data, is stored in the physical drive. The data block of the updated logical data of the physical drive corresponding to the data block that has developed a fault is stored in the nonvolatile memory. The completion of writing the updated logical data into the storage system is reported to the host system. In re-updating the updated logical data, the data block of the re-updated logical data corresponding to the data block of the physical drive that has developed a fault is stored in the physical drives. The data block stored in the nonvolatile memory are stored into an alternate block allocated to the physical drives.
摘要翻译：存储系统包括：盘驱动单元，其包括多个逻辑驱动组，每个逻辑驱动组具有多个物理驱动器;以及盘驱动器控制单元，用于控制盘驱动器单元和主机系统之间的信息传送。从主机系统到达的逻辑数据被分成多个连续的数据块，准备冗余数据用于数据恢复。将冗余数据添加到连续数据块以提供更新的逻辑数据。控制存储系统以将更新后的逻辑数据写入到多个物理驱动器中。在要访问的物理驱动器的任何数据块中发生故障的情况下，从更新的逻辑数据生成冗余数据。在数据块和构成更新后的逻辑数据的冗余数据中，对应于未发生故障的数据块的物理驱动器的更新的逻辑数据的数据块被存储在物理驱动器中。与发生故障的数据块对应的物理驱动器的更新逻辑数据的数据块被存储在非易失性存储器中。将更新的逻辑数据写入存储系统的完成报告给主机系统。在重新更新更新的逻辑数据时，对应于已经产生故障的物理驱动器的数据块的重新更新的逻辑数据的数据块被存储在物理驱动器中。存储在非易失性存储器中的数据块被存储到分配给物理驱动器的替代块中。

33. 发明授权

US5283842A Operating point trimming method for optical waveguide modulator and switch 失效
标题翻译：光波导调制器和开关的工作点微调方法
公开(公告)号：US5283842A
公开(公告)日：1994-02-01
申请号：US666051
申请日：1991-03-07
申请人： Hironao Hakogi , Hisashi Takamatsu
发明人： Hironao Hakogi , Hisashi Takamatsu
IPC分类号： G02B6/12 , G02F1/035 , G02F1/225 , G02F1/313 , G02B6/10
CPC分类号： G02F1/225 , G02F1/3132 , G02F2203/20
摘要： Operating point trimming methods for an optical waveguide modulator and an optical waveguide switch are disclosed. One operating point trimming method for an optical waveguide modulator comprises, for example, the step of removing, while monitoring the waveform of an intensity modulated light beam, a portion of either one of a first and a second electrode such that the intensity modulated waveform takes on a desired waveform. One operating point trimming method for an optical waveguide switch comprises the step of removing a portion of either one of a first and a second electrode while monitoring output light beams.
摘要翻译：公开了一种用于光波导调制器和光波导开关的工作点微调方法。光波导调制器的一个工作点修整方法包括，例如，在监视强度调制光束的波形的同时，去除第一和第二电极中的任一个的一部分，使得强度调制波形在所需的波形上。一种用于光波导开关的操作点修整方法包括在监视输出光束的同时去除第一和第二电极中的任一个的一部分的步骤。

34. 发明授权

US5015055A Polarization coupler 失效
标题翻译：极化耦合器
公开(公告)号：US5015055A
公开(公告)日：1991-05-14
申请号：US539220
申请日：1990-06-18
申请人： Hisashi Takamatsu , Norihisa Naganuma , Kenichi Abe
发明人： Hisashi Takamatsu , Norihisa Naganuma , Kenichi Abe
IPC分类号： G02B6/26 , G02B6/287 , G02B6/34 , G02B6/42
CPC分类号： G02B6/2746 , G02B6/274 , G02B6/29332 , G02B6/4246
摘要： A polarization coupler in which a polarization maintaining fiber is employed and a process of producing such polarization coupler are disclosed. Where the polarization coupler is used, beams of light from two laser diodes can be introduced into a single optical fiber and light for the monitoring can be split from a main signal output. Since minimum components required to realize the function are a rotator, a birefringent plate and two or three polarization maintaining fibers, the polarization coupler is superior in operability in production and is suitable for miniaturization. The branching ratio of light for monitoring can be adjusted by adjustment of the angle of rotation of light by the rotator.

35. 发明授权

US4792917A Control apparatus for simultaneous data transfer 失效
标题翻译：用于同时进行数据传输的控制装置
公开(公告)号：US4792917A
公开(公告)日：1988-12-20
申请号：US947081
申请日：1986-12-29
申请人： Hisashi Takamatsu , Hisaharu Takeuchi , Yoshiro Shiroyanagi
发明人： Hisashi Takamatsu , Hisaharu Takeuchi , Yoshiro Shiroyanagi
IPC分类号： G06F3/06 , G06F12/08
CPC分类号： G06F12/0866 , G06F12/0862
摘要： An apparatus for controlling data transfer between a rotary storage device such as a magnetic disk having a plurality of heads for different tracks and another storage device such as a disk cache includes a plurality of transfer circuits for the purpose of simultaneous data transfer to and from a plurality of tracks. The transfer circuits operate concurrently with and independently of each other to transfer data therethrough and other than noting the regions to be skipped over, ignoring data format on the track. The apparatus is suitable for preloading a disk cache from a disk.
摘要翻译：一种用于控制诸如具有用于不同磁道的多个磁头的磁盘的旋转存储装置和诸如磁盘高速缓存的另一个存储装置之类的数据传输的装置包括多个传送电路，用于同时传送数据到和从多条轨道。传输电路与彼此同时并且彼此独立地进行操作，以通过其传输数据，而不是注意要跳过的区域，忽略轨道上的数据格式。该设备适用于从磁盘预加载磁盘缓存。

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