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    • 72. 发明授权
    • Image pickup device with noise data generation
    • 具有噪声数据生成的图像拾取装置
    • US5943094A
    • 1999-08-24
    • US929659
    • 1997-09-17
    • Shinji SakaiNobuo FukushimaAkira Suga
    • Shinji SakaiNobuo FukushimaAkira Suga
    • H04N5/217H04N5/372H04N9/64
    • H04N5/367
    • An image pickup device including: a solid state image pickup element; a memory; an image pickup data generating unit for generating image pickup data through an image pickup operation of reading data from the solid state image pickup element and A/D converting the data; a first processing unit for storing the image pickup data in the memory; a noise data generating unit for generating noise data through an operation, similar to the image pickup operation in a non-exposure state, of reading data from the solid state image pickup element and A/D converting the data; and a second processing unit for generating a desired image pickup data by subtracting an average data of a plurality of noise data obtained by a plurality of repetitive operations of the noise data generating unit, from the image pickup data stored in the memory means.
    • 一种图像拾取装置,包括:固态图像拾取元件; 记忆 图像拾取数据生成单元,用于通过从固态图像拾取元件读取数据的图像拾取操作和转换数据的A / D来生成图像拾取数据; 第一处理单元,用于将图像拾取数据存储在存储器中; 噪声数据产生单元,用于通过类似于非曝光状态下的图像拾取操作从固态图像拾取元件读取数据和转换数据的A / D产生噪声数据; 以及第二处理单元,用于通过从存储在存储器装置中的图像拾取数据中减去由噪声数据产生单元的多次重复操作获得的多个噪声数据的平均数据来产生期望的图像拾取数据。
    • 77. 发明授权
    • Rotation drive device
    • 旋转驱动装置
    • US5345532A
    • 1994-09-06
    • US121223
    • 1993-09-14
    • Nobuo Fukushima
    • Nobuo Fukushima
    • H02P23/00H02P5/00
    • H02P23/186Y10S388/912
    • A rotation drive device for driving a rotator is disclosed, comprising an electric motor for driving the rotator, a phase detecting circuit for detecting the phase of rotation of the rotator, a reference signal source for forming a reference signal of a constant period, a phase control circuit for controlling the motor in such a manner that the phase difference between the output of the reference signal source and the output of the phase detecting circuit becomes a constant value, a detecting circuit for detecting a fact that the reading-out of the phase difference is not completed in the time interval between the successive two outputs of the phase detecting circuit, a control circuit for varying the number of cycles of phase difference computing operation of the phase control circuit depending on the time interval between the successive two outputs of the phase detecting circuit, another detecting circuit for detecting a fact that the phase detecting circuit has produced no output in one period of the reference signal, and another detecting circuit for detecting a fact that the production of an output of the phase detecting circuit has repeated a plurality of times in one period of the reference signal.
    • 公开了一种用于驱动旋转器的旋转驱动装置,包括用于驱动旋转器的电动机,用于检测旋转器的旋转相位的相位检测电路,用于形成恒定周期的参考信号的参考信号源, 用于控制电动机的控制电路,使得参考信号源的输出与相位检测电路的输出之间的相位差成为恒定值;检测电路,用于检测相位读出的事实 在相位检测电路的相继的两个输出之间的时间间隔中没有完成差异,控制电路用于根据相位检测电路的连续两个输出之间的时间间隔来改变相位控制电路的相位差计算操作的周期数 相位检测电路,用于检测相位检测电路没有输出的事实的另一检测电路 参考信号的一个周期,以及用于检测相位检测电路的输出的产生在参考信号的一个周期中重复多次的事实的另一个检测电路。