公开(公告)号：US07227675B2

公开(公告)日：2007-06-05

申请号：US11189914

申请日：2005-07-27

申请人： Ikuo Aoki ,  Yoshitaka Takahashi

发明人： Ikuo Aoki ,  Yoshitaka Takahashi

IPC分类号： G03H1/00

CPC分类号： G03H1/26 ,  G03H1/0248 ,  G03H1/265 ,  G03H2001/0413 ,  G03H2001/0473 ,  G11B7/0065 ,  G11B7/24044

摘要： A hologram recording medium in which data is recorded at a high density, the input of a reference beam to an area to which data is not to be recorded of a recording layer is prevented when recording data to the hologram recording medium, and an amount of noise when reproducing the data from the hologram recording medium is reduced. The hologram recording medium includes a light velocity restriction member restricting an incidence area of a hologram recording layer, thus restricting the incidence of a reference beam onto the hologram recording layer, preventing the incidence of the reference beam onto an area to which data is not to be recorded of the hologram recording layer when recording data and reproducing the amount of noise when reproducing data.

摘要翻译： 以高密度记录数据的全息图记录介质，当向全息图记录介质记录数据时，防止将参考光束输入到不记录数据的记录层数据的区域 从全息图记录介质再现数据时的噪声降低。 全息记录介质包括限制全息图记录层的入射区域的光速限制部件，从而将参考光束的入射限制在全息图记录层上，防止参考光束入射到数据不到的区域 当记录数据并再现数据时的噪声量时，记录全息图记录层。

公开(公告)号：US20060221799A1

公开(公告)日：2006-10-05

申请号：US11447078

申请日：2006-06-06

申请人： Yoshitaka Takahashi ,  Hiroshi Akiyama

发明人： Yoshitaka Takahashi ,  Hiroshi Akiyama

IPC分类号： G11B7/00

CPC分类号： G11B7/1353 ,  G11B7/123 ,  G11B7/126 ,  G11B7/1275 ,  G11B7/131 ,  G11B7/1356 ,  G11B7/1365 ,  G11B7/1367 ,  G11B7/1372 ,  G11B7/1376 ,  G11B7/1378 ,  G11B7/1395 ,  G11B7/1398 ,  G11B2007/0006 ,  G11B2007/13727

摘要： A polarizing beam splitter for separating an upstream beam from a downstream beam according to the polarization of an incident beam is provided between first and second light sources emitting laser beams at respective wavelength and an objective lens. A phase plate for providing a phase difference to a beam incident on the polarizing beam splitter is provided between the polarizing beam splitter and the light sources. A portion of the laser beam incident on the polarizing beam splitter is reflected by the polarizing beam splitter and caused to be incident on a photo-detecting unit, so as to prevent an unnecessary portion of the laser beam is incident on the photo-detecting unit. According to the invention, the laser beam is used efficiently and the cost of fabricating an optical disk apparatus is reduced by eliminating a need for a gain controlling circuit in the photo-detecting unit.

摘要翻译： 在发射各波长的激光束和物镜的第一和第二光源之间设置有用于根据入射光束的偏振从上游光束分离上游光束的偏振分束器。 在偏振分束器和光源之间设置有用于向入射到偏振分束器上的光束提供相位差的相位板。 入射到偏振分束器上的激光束的一部分被偏振分束器反射并入射到光检测单元上，以防止激光束的不必要部分入射到光检测单元 。 根据本发明，激光束被有效地利用，并且通过消除对光检测单元中的增益控制电路的需要来降低制造光盘装置的成本。

公开(公告)号：US20060028702A1

公开(公告)日：2006-02-09

申请号：US11189914

申请日：2005-07-27

申请人： Ikuo Aoki ,  Yoshitaka Takahashi

发明人： Ikuo Aoki ,  Yoshitaka Takahashi

IPC分类号： G03H1/00

CPC分类号： G03H1/26 ,  G03H1/0248 ,  G03H1/265 ,  G03H2001/0413 ,  G03H2001/0473 ,  G11B7/0065 ,  G11B7/24044

摘要： A hologram recording medium in which data is recorded at a high density, the input of a reference beam to an area to which data is not to be recorded of a recording layer is prevented when recording data to the hologram recording medium, and an amount of noise when reproducing the data from the hologram recording medium is reduced. The hologram recording medium includes a light velocity restriction member restricting an incidence area of a hologram recording layer, thus restricting the incidence of a reference beam onto the hologram recording layer, preventing the incidence of the reference beam onto an area to which data is not to be recorded of the hologram recording layer when recording data and reproducing the amount of noise when reproducing data.

摘要翻译： 以高密度记录数据的全息图记录介质，当向全息图记录介质记录数据时，防止将参考光束输入到不记录数据的记录层数据的区域 从全息图记录介质再现数据时的噪声降低。 全息记录介质包括限制全息图记录层的入射区域的光速限制部件，从而将参考光束的入射限制在全息图记录层上，防止参考光束入射到数据不到的区域 当记录数据并再现数据时的噪声量时，记录全息图记录层。

公开(公告)号：US06717434B2

公开(公告)日：2004-04-06

申请号：US09963494

申请日：2001-09-27

申请人： Yoshitaka Takahashi ,  Masahiko Saito ,  Hidemitsu Naya ,  Mutsumi Kikuchi ,  Takashi Hotta

发明人： Yoshitaka Takahashi ,  Masahiko Saito ,  Hidemitsu Naya ,  Mutsumi Kikuchi ,  Takashi Hotta

IPC分类号： H03K19173

CPC分类号： G06F17/5045 ,  G06F1/32

摘要： Consumption power control is provided for a system LSI made of a combination of a plurality of reusable logic circuit modules, i.e., Intellectual Property (IP) cores. Hardware resources such as interfaces and registers for the consumption power control of other IP cores are prepared and controlled by software for the consumption power control of a system LSI. The consumption power can be controlled at an IP core level. A method is provided which facilitates a system LSI designer to enter a consumption power control specification of a system LSI when the system LSI is configured.

摘要翻译： 为由多个可复用逻辑电路模块（即知识产权（IP））核心的组合构成的系统LSI提供消耗功率控制。 其他IP核的消耗功率控制的接口和寄存器等硬件资源由用于系统LSI的消耗功率控制的软件来制备和控制。 消耗功率可以控制在IP核级别。 提供了一种方法，其在系统LSI配置时便于系统LSI设计者输入系统LSI的消耗功率控制规范。

公开(公告)号：US06396758B2

公开(公告)日：2002-05-28

申请号：US09793603

申请日：2001-02-27

申请人： Hitoshi Ikeda ,  Tatsuya Kanda ,  Yoshitaka Takahashi ,  Shinya Fujioka ,  Akihiro Funyu

发明人： Hitoshi Ikeda ,  Tatsuya Kanda ,  Yoshitaka Takahashi ,  Shinya Fujioka ,  Akihiro Funyu

IPC分类号： G11C700

CPC分类号： G11C11/406

摘要： A semiconductor memory device having a self-refresh operation includes a detection circuit generating a detection signal when detecting a change of a given input signal, and a comparator circuit comparing the detection signal with a refresh request signal internally generated and generating a control signal indicative of a circuit operation.

摘要翻译： 具有自刷新操作的半导体存储器件包括检测电路，当检测到给定输入信号的变化时产生检测信号;以及比较器电路，将检测信号与内部产生的刷新请求信号进行比较，并生成表示 电路操作。

公开(公告)号：US06272098B1

公开(公告)日：2001-08-07

申请号：US09549174

申请日：2000-04-13

申请人： Yoshitaka Takahashi ,  Hiroshi Akiyama

发明人： Yoshitaka Takahashi ,  Hiroshi Akiyama

IPC分类号： G11B1712

CPC分类号： G11B7/1353 ,  G11B7/123 ,  G11B7/126 ,  G11B7/1275 ,  G11B7/1356 ,  G11B7/1372 ,  G11B7/1381 ,  G11B7/1395 ,  G11B7/1398 ,  G11B2007/0006

摘要： A polarizing beam splitter for separating an upstream beam from a downstream beam according to the polarization of an incident beam is provided between first and second light sources emitting laser beams at respective wavelength and an objective lens. A phase plate for providing a phase difference to a beam incident on the polarizing beam splitter is provided between the polarizing beam splitter and the light sources. A portion of the laser beam incident on the polarizing beam splitter is reflected by the polarizing beam splitter and caused to be incident on a photo-detecting unit, so as to prevent an unnecessary portion of the laser beam is incident on the photo-detecting unit. According to the invention, the laser beam is used efficiently and the cost of fabricating an optical disk apparatus is reduced by eliminating a need for a gain controlling circuit in the photo-detecting unit.

摘要翻译： 在发射各波长的激光束和物镜的第一和第二光源之间设置有用于根据入射光束的偏振从上游光束分离上游光束的偏振分束器。 在偏振分束器和光源之间设置有用于向入射到偏振分束器上的光束提供相位差的相位板。 入射到偏振分束器上的激光束的一部分被偏振分束器反射并入射到光检测单元上，以防止激光束的不必要部分入射到光检测单元 。 根据本发明，激光束被有效地利用，并且通过消除对光检测单元中的增益控制电路的需要来降低制造光盘装置的成本。

公开(公告)号：US5815473A

公开(公告)日：1998-09-29

申请号：US628777

申请日：1996-04-05

申请人： Yoshitaka Takahashi ,  Masami Emoto

发明人： Yoshitaka Takahashi ,  Masami Emoto

IPC分类号： G11B7/09 ,  G11B7/135

CPC分类号： G11B7/0901 ,  G11B7/094 ,  G11B7/0943

摘要： An optical pickup device includes an optical system which forms a main spot and a set of sub-spots on an optical disk by a beam of light passing the optical system. A photodetector unit outputs first signals in response to a reflection beam from the main spot, and outputs second signals in response to reflection beams from the sub-spots. A tracking error detector includes a first detection circuit designed to output a first tracking error signal for a first track pitch, and a second detection circuit designed to output a second tracking error signal for a second track pitch different from the first track pitch. A switch selectively connects one of the first detection circuit and the second detection circuit to an output of the tracking error detector in response to a track pitch of the optical disk, so that one of the first and second tracking error signals appropriate for the track pitch of the optical disk is output.

摘要翻译： 光学拾取装置包括通过光学系统的光束在光盘上形成主光点和一组子点的光学系统。 光检测器单元响应于来自主光点的反射光输出第一信号，并且响应于来自子光点的反射光，输出第二信号。 跟踪误差检测器包括被设计为输出第一轨道间距的第一跟踪误差信号的第一检测电路和被设计为输出与第一轨道间距不同的第二轨道间距的第二跟踪误差信号的第二检测电路。 响应于光盘的轨道间距，开关选择性地将第一检测电路和第二检测电路中的一个连接到跟踪误差检测器的输出，使得第一和第二跟踪误差信号之一适合于轨道间距 输出光盘。

公开(公告)号：US5563841A

公开(公告)日：1996-10-08

申请号：US503610

申请日：1995-07-18

申请人： Atsushi Fujii ,  Yoshitaka Takahashi

发明人： Atsushi Fujii ,  Yoshitaka Takahashi

IPC分类号： G11C17/18 ,  G11C29/00 ,  G11C29/04 ,  G11C13/00

CPC分类号： G11C29/78 ,  G11C29/781

摘要： A semiconductor memory device includes a memory cell array divided into a first memory cell array for an upper address of an input address and a second memory cell array for a lower address of the input address, a redundant cell array storing correction data, a first sense amplifier provided with respect to the first memory cell array, a first column decoder provided with respect to the first memory cell array, a second sense amplifier provided with respect to the second memory cell array, and a second column decoder provided with respect to the second memory cell array. The second sense amplifier and the second column decoder are non-selected when an access is made to the first memory cell array by the input address. The non-selected second sense amplifier and second column decoder operate as a sense amplifier and a column decoder provided with respect to the redundant cell array to thereby output the correction data from the upper address of the redundant cell array.

摘要翻译： 半导体存储器件包括：存储单元阵列，被划分为用于输入地址的高地址的第一存储单元阵列和用于输入地址的较低地址的第二存储单元阵列;存储校正数据的冗余单元阵列;第一感测 相对于第一存储单元阵列提供的放大器，相对于第一存储单元阵列提供的第一列解码器，相对于第二存储单元阵列提供的第二读出放大器，以及相对于第二存储单元阵列提供的第二列解码器 存储单元阵列。 当通过输入地址访问第一存储器单元阵列时，第二读出放大器和第二列解码器是未选择的。 未选择的第二读出放大器和第二列解码器用作相对于冗余单元阵列提供的读出放大器和列解码器，从而从冗余单元阵列的上部地址输出校正数据。

公开(公告)号：US5073888A

公开(公告)日：1991-12-17

申请号：US340044

申请日：1989-04-18

申请人： Yoshitaka Takahashi ,  Hiroshi Koide ,  Hiroshi Gotoh ,  Masami Emoto ,  Syuichi Honda

发明人： Yoshitaka Takahashi ,  Hiroshi Koide ,  Hiroshi Gotoh ,  Masami Emoto ,  Syuichi Honda

IPC分类号： G11B11/105

CPC分类号： G11B11/10545 ,  G11B11/10536 ,  G11B11/10576

摘要： An optical pickup device for recording, reproducing or erasing an information, comprises a sole semiconductor laser beam source for emitting a luminous flux, a polarizer for receiving the luminous flux emitted from the sole semiconductor laser beam source and dividing the received luminous flux into a plurality of luminous fluxes, and a sole object lens for receiving a plurality of the divided luminous fluxes and converging each of a plurality of the received luminous fluxes on small spots on an optical information recording medium, respectively.

摘要翻译： 用于记录，再现或擦除信息的光学拾取装置包括用于发射光束的唯一半导体激光束源，用于接收从单个半导体激光束源发射的光束并将接收的光束分成多个的偏振器 以及单独的物镜，用于分别接收多个划分的光束并将多个接收光束中的每一个会聚在光信息记录介质上的小点上。

公开(公告)号：US4818995A

公开(公告)日：1989-04-04

申请号：US51519

申请日：1987-05-19

申请人： Yoshitaka Takahashi ,  Yasushi Takahashi ,  Yukio Nakano ,  Akihiro Hori ,  Minoru Maeda ,  Yoshihiko Miyano ,  Ikuo Tokizawa ,  Masatoyo Sumida

发明人： Yoshitaka Takahashi ,  Yasushi Takahashi ,  Yukio Nakano ,  Akihiro Hori ,  Minoru Maeda ,  Yoshihiko Miyano ,  Ikuo Tokizawa ,  Masatoyo Sumida

IPC分类号： H04L7/00 ,  H04L7/02 ,  H04L25/02 ,  H04L25/14 ,  H04L25/40 ,  H03M7/00

CPC分类号： H04L7/0066 ,  H04L25/14

摘要： A parallel pulse transmission system, wherein the sending side converts original signals into line coded signals of a block coding type (mBnB line codes, m/2.gtoreq.2/3, n.gtoreq.3) and transmits them after aligning the timings of the blocks receiving side. The regenerates of the systems transmitted line codes and thereafter, aligns the timings of blocks of the line codes.

摘要翻译： 一种并行脉冲传输系统，其中发送侧将原始信号转换为块编码类型（mBnB行码，m / 2> / = 2/3，n> / = 3）的行编码信号，并在对准定时 的块接收侧。 系统的再生发送线路代码，此后，对齐线路代码块的定时。