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    Method of optically detecting position of object and position detecting apparatus using the method
    2.
    发明授权
    Method of optically detecting position of object and position detecting apparatus using the method 失效
    使用该方法光学检测对象和位置检测装置的位置的方法

    公开(公告)号：US5129725A

    公开(公告)日：1992-07-14

    申请号：US759950

    申请日：1991-09-17

    申请人： Koh Ishizuka ,  Tetsuharu Nishimura ,  Masaaki Tsukiji ,  Chikara Satoh ,  Satoshi Ishii

    发明人： Koh Ishizuka ,  Tetsuharu Nishimura ,  Masaaki Tsukiji ,  Chikara Satoh ,  Satoshi Ishii

    IPC分类号： H03M1/28 ,  H03M1/30

    CPC分类号： H03M1/285 ,  H03M1/308

    摘要： A method of and apparatus for optically detecting the position or amount of movement of a movable object, in which a plurality of position data element arrays are provided on a scale attached to the object such that the arrays are arranged in the direction of movement of the object. A string of light beam such as a laser beam, which extends in the same direction as the position data element array, is made to illuminate one of the arrays, and the light reflected by or transmitted through the position data element array is received by a sensor array such as CCD sensor which produces a signal representing the pattern of arrangement of the data elements in the illuminated position data element array and indicating absolute position of the object, whereby the instant absolute position of the object is detected.

    摘要翻译： 一种用于光学地检测可移动物体的位置或移动量的方法和装置，其中多个位置数据元件阵列设置在附接到物体的刻度上，使得阵列沿着移动物体的移动方向排列 目的。 使与诸如位置数据元素阵列相同的方向延伸的激光束等光束照射到阵列中的一个阵列上，由位置数据元素阵列反射或透过位置数据元素阵列的光被 传感器阵列，例如CCD传感器，其产生表示照明位置数据元素阵列中的数据元素的布置图案的信号，并且指示对象的绝对位置，从而检测对象的瞬时绝对位置。

    Data processing device
    5.
    发明授权
    Data processing device 失效
    数据处理装置

    公开(公告)号：US4901148A

    公开(公告)日：1990-02-13

    申请号：US143974

    申请日：1988-01-14

    申请人： Tadayoshi Nakayama ,  Chikara Satoh ,  Akio Fujii ,  Katsuji Yoshimura ,  Koji Takahashi

    发明人： Tadayoshi Nakayama ,  Chikara Satoh ,  Akio Fujii ,  Katsuji Yoshimura ,  Koji Takahashi

    IPC分类号： H04N5/91 ,  H04N5/926 ,  H04N7/01

    CPC分类号： H04N5/91 ,  H04N5/926 ,  H04N7/01 ,  Y10S348/911

    摘要： A data processing device having a memory which permits writing and reading of digital data and a digital-to-analog converter which converts digital data read out from the memory into an analog signal. The operating frequency of the converter obtained when the memory is solely performing data reading is arranged to be twice as high as the operating frequency of the converter obtained when the memory is performing both data writing and data reading.

    摘要翻译： 一种具有允许写入和读取数字数据的存储器的数据处理装置和将从存储器读出的数字数据转换为模拟信号的数模转换器。 当存储器仅执行数据读取时获得的转换器的工作频率被设置为当存储器执行数据写入和数据读取时获得的转换器的工作频率的两倍。