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公开(公告)号：US07372489B2
公开(公告)日：2008-05-13
申请号：US10479241
申请日：2002-05-15
摘要： A VI conversion circuit 40n inputs a voltage output from a hold circuit 30n, converts this input voltage to a current based on the resistance value of a resistor R40, and outputs this current from a drain terminal of a MOS transistor T40. An amp A40 has an adequate open loop gain and MOS transistor T40 operates in the saturated region. Here, if the resistance value of resistor R40 is R, the current value I that is output from VI conversion circuit 40n is in the proportional relationship expressed by the equation, “I=V/R,” with respect to the voltage V input into VI conversion circuit 40n.
摘要翻译： VI转换电路40输入从保持电路30输出的电压，将该输入电压转换为基于电阻R的电阻值的电流， 40，并从MOS晶体管T40的漏极端子输出该电流。 放大器A <40>具有足够的开环增益，并且MOS晶体管T 40在饱和区域中工作。 这里，如果电阻R <40>的电阻值为R，则从VI转换电路40输出的电流值I为由等式表示的比例关系， 相对于输入到VI转换电路40的电压V，“I = V / R”。
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公开(公告)号：US20100295979A1
公开(公告)日：2010-11-25
申请号：US12518383
申请日：2007-12-11
IPC分类号： H04N5/335
摘要： A solid-state imaging device 1 includes photodiodes PD1 to PDN, charge-voltage converting circuits 101 to 10N, pre-holding circuits 201 to 20N, a transimpedance amplifier 30, a peak holding circuit 50, and a post-holding circuit 60. The charge-voltage converting circuit 10n inputs charges generated at the photodiode PDn and outputs a voltage value corresponding to the input charge quantity. The pre-holding circuit 20n holds the output voltage value from the charge-voltage converting circuit 10n and outputs the output voltage value as a current. The transimpedance amplifier 30 inputs voltage values successively output form the pre-holding circuits 201 to 20N as currents and outputs voltage values converted based on a transimpedance from the currents flowing in accordance with change quantities to the input voltage values from a reference voltage value. The peak holding circuit 50 holds and outputs a peak hold voltage of the output voltage values from the transimpedance amplifier 30.
摘要翻译： 固态成像装置1包括光电二极管PD1至PDN，电荷电压转换电路101至10N，预保持电路201至20N，跨阻放大器30，峰值保持电路50和后保持电路60。 充电电压转换电路10n输入在光电二极管PDn处产生的电荷，并输出与输入电荷量对应的电压值。 预保持电路20n保持来自充电电压转换电路10n的输出电压值，并将输出电压值作为电流输出。 跨阻放大器30输入从预保持电路201至20N连续输出的电压值作为电流，并将基于跨阻抗转换的电压值从根据变化量流动的电流输入到参考电压值的输入电压值。 峰值保持电路50保持并输出来自跨阻抗放大器30的输出电压值的峰值保持电压。
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公开(公告)号：US20090152446A1
公开(公告)日：2009-06-18
申请号：US10593084
申请日：2005-03-17
IPC分类号： H01J40/14
CPC分类号： G01J1/46
摘要： A photodetector of a wide dynamic range of incident light amount detection and low temperature dependence is provided. A first signal processing unit 10m,n includes an integrating circuit 11, a first holding circuit 12, a comparing circuit 13, a second holding circuit 14, and a latching circuit 15. The integrating circuit 11 has a variable capacitor unit that is selectively set to a capacitance value among a plurality of capacitance values, accumulates charges, output from the photodiode, into the variable capacitor unit over an accumulating period that is in accordance with the capacitance value set at the variable capacitor unit, and outputs a voltage V1 that is in accordance with the amount of the accumulated charges. The comparing circuit 13 inputs the voltage V1 output from the integrating circuit 11, performs a quantitative comparison of the voltage V1 with a reference voltage Vref, outputs a compared signal S3 expressing the result of comparison, and, when the voltage V1 output from the integrating. circuit 11 at the end of an accumulating period is less than the reference voltage Vref, instructs the first holding circuit 12 to hold the voltage.
摘要翻译： 提供入射光量检测的宽动态范围和低温度依赖性的光电检测器。 第一信号处理单元10m，n包括积分电路11，第一保持电路12，比较电路13，第二保持电路14和锁存电路15.积分电路11具有可选择地设置的可变电容器单元 在多个电容值之间的电容值中，在与可变电容器单元设定的电容值相对应的累积期间，将从光电二极管输出的电荷累积到可变电容器单元中，并输出电容V1 按照累计收费金额。 比较电路13输入从积分电路11输出的电压V1，对参考电压Vref进行电压V1的定量比较，输出表示比较结果的比较信号S3，当从积分电路输出的电压V1 。 蓄电周期结束时的电路11小于参考电压Vref，指示第一保持电路12保持电压。
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公开(公告)号：US08564704B2
公开(公告)日：2013-10-22
申请号：US12518383
申请日：2007-12-11
摘要： A solid-state imaging device 1 includes photodiodes PD1 to PDN, charge-voltage converting circuits 101 to 10N, pre-holding circuits 201 to 20N, a transimpedance amplifier 30, a peak holding circuit 50, and a post-holding circuit 60. The charge-voltage converting circuit 10n inputs charges generated at the photodiode PDn and outputs a voltage value corresponding to the input charge quantity. The pre-holding circuit 20n holds the output voltage value from the charge-voltage converting circuit 10n and outputs the output voltage value as a current. The transimpedance amplifier 30 inputs voltage values successively output form the pre-holding circuits 201 to 20N as currents and outputs voltage values converted based on a transimpedance from the currents flowing in accordance with change quantities to the input voltage values from a reference voltage value. The peak holding circuit 50 holds and outputs a peak hold voltage of the output voltage values from the transimpedance amplifier 30.
摘要翻译： 固态成像装置1包括光电二极管PD1至PDN，电荷电压转换电路101至10N，预保持电路201至20N，跨阻放大器30，峰值保持电路50和后保持电路60。 充电电压转换电路10n输入在光电二极管PDn处产生的电荷，并输出与输入电荷量对应的电压值。 预保持电路20n保持来自充电电压转换电路10n的输出电压值，并将输出电压值作为电流输出。 跨阻放大器30输入从预保持电路201至20N连续输出的电压值作为电流，并将基于跨阻抗转换的电压值从根据变化量流动的电流输入到参考电压值的输入电压值。 峰值保持电路50保持并输出来自跨阻抗放大器30的输出电压值的峰值保持电压。
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公开(公告)号：US07075338B2
公开(公告)日：2006-07-11
申请号：US10821272
申请日：2004-04-09
申请人： Seiichiro Mizuno , Takashi Suzuki , Tetsuya Taka
发明人： Seiichiro Mizuno , Takashi Suzuki , Tetsuya Taka
CPC分类号： H01S5/042 , H01S5/0428
摘要： A light emitting element driving circuit for supplying driving current I2 to a light emitting element 10 connected to one line 2 of a current mirror circuit 12 is equipped with a pulse generating circuit 20 connected to the other line 1 so that pulse current flows therethrough, and superposing means 30 for superposing a first auxiliary pulse current on the pulse current in synchronization with the rise-up time of the pulse current. The rise-up time is shortened by the superposition. In the driving circuit, a source follower circuit is connected to the current mirror circuit, and current flowing through the source follower circuit is set to be substantially proportional to current flowing through the other line of the current mirror circuit.
摘要翻译： 用于向与电流镜电路12的一条线2连接的发光元件10提供驱动电流I2的发光元件驱动电路配备有连接到另一条线1的脉冲发生电路20，使得脉冲电流流过其中， 用于与脉冲电流的上升时间同步地将脉冲电流上的第一辅助脉冲电流叠加的叠加装置30。 叠加时间缩短。 在驱动电路中，源极跟随器电路连接到电流镜电路，并且流过源极跟随器电路的电流被设置为与流过电流镜电路的另一条线的电流成比例。
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6.发明授权公开(公告)号：US07989753B2
公开(公告)日：2011-08-02
申请号：US10593084
申请日：2005-03-17
IPC分类号： H01J40/14
CPC分类号： G01J1/46
摘要： A photodetector of a wide dynamic range of incident light amount detection and low temperature dependence is provided. A first signal processing unit 10m,n includes an integrating circuit 11, a first holding circuit 12, a comparing circuit 13, a second holding circuit 14, and a latching circuit 15. The integrating circuit 11 has a variable capacitor unit that is selectively set to a capacitance value among a plurality of capacitance values, accumulates charges, output from the photodiode, into the variable capacitor unit over an accumulating period that is in accordance with the capacitance value set at the variable capacitor unit, and outputs a voltage V1 that is in accordance with the amount of the accumulated charges. The comparing circuit 13 inputs the voltage V1 output from the integrating circuit 11, performs a quantitative comparison of the voltage V1 with a reference voltage Vref, outputs a compared signal S3 expressing the result of comparison, and, when the voltage V1 output from the integrating circuit 11 at the end of an accumulating period is less than the reference voltage Vref, instructs the first holding circuit 12 to hold the voltage.
摘要翻译： 提供入射光量检测的宽动态范围和低温度依赖性的光电检测器。 第一信号处理单元10m，n包括积分电路11，第一保持电路12，比较电路13，第二保持电路14和锁存电路15.积分电路11具有可选择地设置的可变电容器单元 在多个电容值之间的电容值中，在与可变电容器单元设定的电容值相对应的累积期间，将从光电二极管输出的电荷累积到可变电容器单元中，并输出电容V1 按照累计收费金额。 比较电路13输入从积分电路11输出的电压V1，对参考电压Vref进行电压V1的定量比较，输出表示比较结果的比较信号S3，当从积分电路输出的电压V1 蓄电周期结束时的电路11小于参考电压Vref，指示第一保持电路12保持电压。
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公开(公告)号：US20060158542A1
公开(公告)日：2006-07-20
申请号：US11291999
申请日：2005-12-02
IPC分类号： H04N5/335
CPC分类号： H04N5/35527 , G01J1/46 , H01L27/14601 , H04N5/347 , H04N5/35545 , H04N5/35554 , H04N5/3559 , H04N5/357 , H04N5/3741 , H04N5/37452
摘要： A transmission transistor T2 transfers charges generated in a photodiode PD to a first capacitor part C11 via a first switch SW11, and transfers the charges to a second capacitor part C12 via a second switch SW12. An amplification transistor T1 outputs a voltage corresponding to the amount of accumulated charges in at least one of a first capacitor part C11 and a second capacitor part C12, connected to a gate terminal, and a gate terminal of the amplification transistor T1 is connected to at least one of the first capacitor part C11 and the second capacitor part C12.
摘要翻译： 传输晶体管T 2 2通过第一开关SW 11将在光电二极管PD中产生的电荷传送到第一电容器部分C 11，并且将 通过第二开关SW 12向第二电容器部分C 12充电。 放大晶体管T 1输出与第一电容器部分C11和第二电容器部分C12中的至少一个中的累积电荷量相对应的电压 ，连接到栅极端子，并且放大晶体管T 1的栅极端子连接到第一电容器部分C 11和 第二电容器部分C 12。
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