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    • 7. 发明授权
    • Semiconductor integrated circuit having diagnosis function
    • 具有诊断功能的半导体集成电路
    • US06346822B2
    • 2002-02-12
    • US09735757
    • 2000-12-13
    • Yoshikazu Nishikawa
    • Yoshikazu Nishikawa
    • G01R3128
    • G01R31/318566G01R31/318385H03K3/84
    • A semiconductor integrated circuit having a diagnosis function includes a scan chain arrangement block 2 in which a plurality of flip-flops are connected so that they can be shift-registered, and designed in a scan-path manner; a shift register 3 for storing required bits of a first random number pattern shifted by the block 2; another shift register 4 for storing required bits of a second random number pattern supplied to the block 2; and a comparator for comparing corresponding bits of the random number patterns stored in the shift registers 3 and 4 to detect whether all the bits of the random number patterns agree or disagree with each other, thereby verifying a normal operation of the block 2. In this configuration, the operating state of the semiconductor integrated circuit can be diagnosed with the number of connecting wires connected to it being minimized.
    • 具有诊断功能的半导体集成电路包括扫描链配置块2,其中连接有多个触发器,使得它们可以被移位注册,并以扫描路径方式设计; 移位寄存器3,用于存储由块2移位的第一随机数模式的所需位; 用于存储提供给块2的第二随机数模式的所需位的另一个移位寄存器4; 以及比较器,用于比较存储在移位寄存器3和4中的随机数模式的相应位,以检测所述随机数模式的所有比特是否彼此一致或不一致,从而验证块2的正常操作。在此 可以通过连接到其的连接线的数量被最小化来诊断半导体集成电路的工作状态。
    • 10. 发明授权
    • Image pickup apparatus
    • 摄像设备
    • US5739854A
    • 1998-04-14
    • US718602
    • 1996-09-24
    • Yoshikazu Nishikawa
    • Yoshikazu Nishikawa
    • G03B7/20H04N5/232
    • G03B7/20H04N5/232H04N5/23209
    • A video camera apparatus to which a lens unit is detachably mounted includes a camera unit having an exposure control circuit for producing an exposure control signal from an image pickup signal and transmitting it to an utilization device, a lens unit used as the utilization device and having an iris control circuit for producing an iris control signal based on the exposure control signal provided by the exposure control circuit and a signal indicative of diaphragm condition of an iris, and a data communication channel for communicating a plurality of signals including the exposure control signal in a given cycle between the camera unit and the lens unit. The iris control circuit is so arranged as to control the iris by use of the iris control signal obtained by dividing the exposure control signal transmitted from the camera unit into a given number of times within a one communication duration.
    • 可拆卸地安装透镜单元的摄像机装置包括具有曝光控制电路的相机单元,该曝光控制电路用于从摄像信号产生曝光控制信号并将其传送到利用装置,用作利用装置的透镜单元并具有 用于根据由曝光控制电路提供的曝光控制信号和指示光圈的光阑条件的信号产生光圈控制信号的光圈控制电路和用于将包括曝光控制信号在内的多个信号传送的数据通信通道 相机单元和镜头单元之间的给定周期。 虹膜控制电路被布置为通过使用通过在一个通信持续时间内将从相机单元发送的曝光控制信号分割成给定次数而获得的光圈控制信号来控制光圈。