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139 条记录 (耗时 0.057 秒)

    Memory system
    81.
    发明授权
    Memory system 有权
    内存系统

    公开(公告)号：US07417884B2

    公开(公告)日：2008-08-26

    申请号：US11443030

    申请日：2006-05-31

    申请人： Toshio Ogawa ,  Yoshihiro Takemae ,  Yoshinori Okajima ,  Tetsuhiko Endo ,  Yasuro Matsuzaki

    发明人： Toshio Ogawa ,  Yoshihiro Takemae ,  Yoshinori Okajima ,  Tetsuhiko Endo ,  Yasuro Matsuzaki

    IPC分类号： G11C5/06 ,  H04B10/00

    CPC分类号： G06F13/4243 ,  G11C5/066 ,  G11C7/1006

    摘要： A memory controller multiplexes access signals each consisting of a plurality of bits as optical signals and outputs the multiplexed optical signals. At this time, the optical signals whose wavelengths differ depending on memory devices are generated. A memory interface unit demultiplexes the multiplexed optical signals into the original optical signals and converts the demultiplexed optical signals into electrical signals. The memory interface unit determines to which of the memory devices the electrical signals resulting from the conversion should be outputted, according to the wavelengths of the demultiplexed optical signals. This frees the memory controller from a need for transmitting to the memory interface unit a signal for identifying the memory device. The memory interface unit need not include a decoding circuit for identifying the memory device.

    摘要翻译： 存储器控制器将每个由多个位组成的访问信号复用为光信号并输出​​复用的光信号。 此时，产生根据存储器件波长不同的光信号。 存储器接口单元将复用的光信号解复用为原始光信号，并将解复用的光信号转换为电信号。 存储器接口单元根据解复用的光信号的波长来确定应该向哪个存储器件输出由转换产生的电信号。 这使得存储器控制器不需要向存储器接口单元发送用于识别存储器件的信号。 存储器接口单元不需要包括用于识别存储器件的解码电路。

    Memory system
    82.
    发明申请
    Memory system 有权
    内存系统

    公开(公告)号：US20070192527A1

    公开(公告)日：2007-08-16

    申请号：US11443031

    申请日：2006-05-31

    申请人： Toshio Ogawa ,  Yoshihiro Takemae ,  Yoshinori Okajima ,  Tetsuhiko Endo ,  Yasuro Matsuzaki

    发明人： Toshio Ogawa ,  Yoshihiro Takemae ,  Yoshinori Okajima ,  Tetsuhiko Endo ,  Yasuro Matsuzaki

    IPC分类号： G06F12/00

    CPC分类号： G11C7/10 ,  G06F11/1068 ,  G11C7/1045

    摘要： A semiconductor memory has a field programmable unit in which logic to inter-convert external signals to be input/output to/from a memory system and internal signals to be input/output to/from a memory cell array is programmed. A program for constructing the logic of the field programmable unit is stored in a nonvolatile program memory unit. Through the field programmable unit, a controller can access the memory cell array, even when the interface of the controller accessing the semiconductor memory is different from an interface for accessing the memory cell array. Therefore, one kind of semiconductor memory can be used as plural kinds of semiconductor memories. This eliminates the need to develop plural kinds of semiconductor memories, reducing a development cost.

    摘要翻译： 半导体存储器具有现场可编程单元，其中将外部信号互相转换为存储器系统的输入/输出的逻辑和要从存储器单元阵列输入/输出的内部信号的逻辑被编程。 用于构建现场可编程单元的逻辑的程序存储在非易失性程序存储单元中。 通过现场可编程单元，即使当访问半导体存储器的控制器的接口与用于访问存储单元阵列的接口不同时，控制器也可以访问存储单元阵列。 因此，可以使用一种半导体存储器作为多种半导体存储器。 这消除了开发多种半导体存储器的需要，降低了开发成本。

    Rotary encoder having code member rotating along accurate circle as shaft rotates
    86.
    发明授权
    Rotary encoder having code member rotating along accurate circle as shaft rotates 失效

    公开(公告)号：US06603305B2

    公开(公告)日：2003-08-05

    申请号：US10029383

    申请日：2001-12-21

    申请人： Hideki Uchiyama ,  Toshio Ogawa ,  Hirofumi Okumura

    发明人： Hideki Uchiyama ,  Toshio Ogawa ,  Hirofumi Okumura

    IPC分类号： G01B714

    CPC分类号： G01D5/34738

    摘要： An object of the present invention is to provide a rotary encoder that has a code member which rotates so as to draw an accurate circle as a shaft rotates. Such rotary encoder includes a casing; a detection element attached to the casing; and a rotatable rotor having a mounting aperture for inserting a shaft at the center thereof and being provided with a code member opposing to the detection element, in which an inner peripheral surface of the mounting aperture is provided with a spring member having a base and a plurality of tongues for energizing the shaft toward the center of the mounting aperture so as to set a position of the shaft at the center of the mounting aperture.

    Device for detecting the rotational angle of a rotary member
    90.
    发明授权
    Device for detecting the rotational angle of a rotary member 失效
    用于检测旋转构件的旋转角度的装置

    公开(公告)号：US06456065B2

    公开(公告)日：2002-09-24

    申请号：US09731508

    申请日：2000-12-07

    申请人： Toshiyuki Hoshi ,  Hironori Kato ,  Yoshio Sanpei ,  Hirofumi Okumura ,  Ichirou Tokunaga ,  Toshio Ogawa

    发明人： Toshiyuki Hoshi ,  Hironori Kato ,  Yoshio Sanpei ,  Hirofumi Okumura ,  Ichirou Tokunaga ,  Toshio Ogawa

    IPC分类号： G01B730

    CPC分类号： B62D15/02 ,  G01D3/08

    摘要： A rotational angle detecting device includes a rotation detecting section for outputting sinusoidal first and second detection signals as a result of the rotation of a rotor connected to a rotary member, a storage section for updating and storing the first and second detection signals, and a controlling section. The first and second detection signals have constant amplitudes, have the same periods, and have wavelengths which are output of phase. The controlling section compares the amplitude values of most recent first and second detection signals output from the rotation detecting section, and determines whether or not the amplitude values fall within proper ranges. When the controlling section determines that they fall within the proper ranges, a piece of detection information which is created based on the most recent first and second detection signals is supplied to a controller. On the other hand, when the controlling section determines that they do not fall within the proper ranges, the controlling section destroys the most recent first and second detection signals, and does not supply detection information to the controller. The invention provides a rotational angle detecting device for performing required controlling operations using detection signals output from the rotational detecting section which have been determined as being proper detection signals.

    摘要翻译： 旋转角度检测装置包括旋转检测部分，用于输出连接到旋转部件的转子旋转的正弦曲线第一和第二检测信号，用于更新和存储第一和第二检测信号的存储部分，以及控制 部分。 第一和第二检测信号具有恒定的幅度，具有相同的周期，并且具有相位输出的波长。 控制部分比较从旋转检测部分输出的最近的第一和第二检测信号的振幅值，并确定振幅值是否在适当范围内。 当控制部分确定它们落在适当范围内时，基于最近的第一和第二检测信号创建的一条检测信息被提供给控制器。 另一方面，当控制部判定为不在适当的范围内时，控制部破坏最近的第一和第二检测信号，不向控制器提供检测信息。 本发明提供了一种旋转角检测装置，用于使用已被确定为适当的检测信号的从旋转检测部分输出的检测信号来执行所需的控制操作。