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    • 1. 发明申请
    • IMAGING DEVICE
    • 成像装置
    • US20110074987A1
    • 2011-03-31
    • US12958904
    • 2010-12-02
    • Yasunari HaradaYuichi Gomi
    • Yasunari HaradaYuichi Gomi
    • H04N5/16
    • H04N5/3598H03M1/14H03M1/502H03M1/60H04N5/3575H04N5/378
    • An A/D conversion section (11) counts clocks whose frequency corresponds to the size of output signals from pixels (10a), and digitalizes the result so as to create count values, and also calculates a difference between a first count value that relates to the output signal during a reset period of a pixel, and a second count value that relates to the output signal during an exposure period of the pixel, and then outputs this difference as an imaging signal for this pixel. A control unit (12) controls the A/D conversion section such that the length of the counting period of the first count value is equal to the length of the counting period of the second count value.
    • A / D转换部(11)对频率对应于来自像素(10a)的输出信号的大小的时钟进行计数,并且对结果进行数字化,以产生计数值,并且还计算与 在像素的复位周期期间的输出信号,以及在像素的曝光期间与输出信号相关的第二计数值,然后输出该差作为该像素的成像信号。 控制单元(12)控制A / D转换部分,使得第一计数值的计数周期的长度等于第二计数值的计数周期的长度。
    • 5. 发明申请
    • ANALOG/DIGITAL CONVERSION CIRCUIT
    • 模拟/数字转换电路
    • US20110210882A1
    • 2011-09-01
    • US12892163
    • 2010-09-28
    • Yusaku KoyamaYasunari HaradaYoshio Hagihara
    • Yusaku KoyamaYasunari HaradaYoshio Hagihara
    • H03M1/50
    • H03M1/60
    • An analog-to-digital converter may include an annular delay circuit that includes a plurality of delay units connected in an annular shape, each of the plurality of delay units delaying a pulse current that is input to each of the plurality of delay units, a current source that outputs an electric current, in accordance with an input analog signal, to selected delay units, which is selected from among the plurality of delay units, and a digital signal generation unit that generates a digital signal in accordance with a number of circulations per predetermined period of time of the pulse current circulating around the annular delay circuit.
    • 模数转换器可以包括环形延迟电路,其包括以环形形式连接的多个延迟单元,所述多个延迟单元中的每一个延迟输入到所述多个延迟单元中的每一个的脉冲电流,a 将根据输入模拟信号的电流输出到从所述多个延迟单元中选择的所选择的延迟单元的电流源以及根据循环次数生成数字信号的数字信号生成单元 每个脉冲电流在环形延迟电路周围循环的预定时间段。
    • 6. 发明申请
    • A/D CONVERSION CIRCUIT
    • A / D转换电路
    • US20110090108A1
    • 2011-04-21
    • US12991275
    • 2009-05-07
    • Yoshio HagiharaYasunari Harada
    • Yoshio HagiharaYasunari Harada
    • H03M1/50
    • H03M1/502H03K3/0315H03M1/14
    • An A/D conversion circuit includes: a pulse transit circuit into which either a power supply or current source and also a pulse signal is input, and through which the pulse signal transits; a transit position detection section that detects a transit position of the pulse signal within the pulse transit circuit, and outputs data in accordance with the transit position; and a digital data creation section that, based on the data output by the transit position detection section, creates digital data that corresponds to the size of the power supply or current source. The pulse transit circuit is formed by a plurality of inverter circuits that are joined together in series, and the plurality of inverter circuits are formed by identical logical elements in which delay times between input signals and output signals change in accordance with the size of the power supply or current source. In the pulse transit circuit, a start-up signal that causes the transiting of the pulse signal to commence is input into one of the plurality of inverter circuits, and the transit position detection section detects the transit position of the pulse signal within the pulse transit circuit based on the output signals from each one of the plurality of inverter circuits.
    • A / D转换电路包括:脉冲传递电路,其中输入电源或电流源以及脉冲信号,脉冲信号通过该电路输入; 中继位置检测部,检测脉冲传递电路内的脉冲信号的转接位置,并根据中途位置输出数据; 以及数字数据创建部,其基于由所述中转位置检测部输出的数据,生成与所述电源或电流源的尺寸对应的数字数据。 脉冲传输电路由串联连接在一起的多个反相器电路形成,多个反相器电路由相同的逻辑元件形成,其中输入信号和输出信号之间的延迟时间根据功率的大小而变化 供应或电流源。 在脉冲传输电路中,使脉冲信号的转移开始的启动信号输入到多个逆变器电路中的一个,并且转接位置检测部检测脉冲输送中脉冲信号的通过位置 基于来自多个逆变器电路中的每一个的输出信号的电路。
    • 7. 发明授权
    • Position detecting circuit and imaging apparatus
    • 位置检测电路和成像装置
    • US07738781B2
    • 2010-06-15
    • US12104001
    • 2008-04-16
    • Yasunari HaradaHisashi TakeuchiKenichi Miyasako
    • Yasunari HaradaHisashi TakeuchiKenichi Miyasako
    • G03B17/00H04N5/228G01B7/00H01L43/06
    • G01R33/12
    • A position detecting circuit provided in an imaging apparatus having an optical system that images a subject image, an imaging element that performs photoelectric conversion of the subject image, and a release switch capable of setting states of two stages includes: a plurality of magnetic field change detecting elements that detect the intensity of a magnetic field formed by a magnetic field generating body attached to either the optical system or the imaging element and that are provided so as to be separated from each other; a position detecting portion that detects the position of the magnetic field generating body on the basis of outputs from the plurality of magnetic field change detecting elements; and a standby portion that stops a function of at least one of the position detecting portion and the plurality of magnetic field change detecting elements until a first stage of the release switch is set.
    • 一种位置检测电路,其设置在具有对被摄体图像进行成像的光学系统的摄像装置,进行被摄体图像的光电转换的摄像元件和能够设定两级的状态的释放开关的摄像装置中,包括:多个磁场变化 检测元件,其检测由附接到光学系统或成像元件的磁场产生体形成的并且被设置为彼此分离的磁场的强度; 位置检测部,其基于来自所述多个磁场变化检测元件的输出来检测所述磁场产生体的位置; 以及备用部,其停止所述位置检测部和所述多个磁场变化检测元件中的至少一个的功能,直到所述释放开关的第一级被设定为止。