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11. 发明公开

EP2437396A1 A/D CONVERSION INTEGRATED CIRCUIT 有权
标题翻译： INTEGRIERTE A / D-WANDLUNGSSCHALTUNG
公开(公告)号：EP2437396A1
公开(公告)日：2012-04-04
申请号：EP10780614.3
申请日：2010-05-27
申请人： National University Corporation Shizuoka University
发明人： KAWAHITO Shoji
IPC分类号： H03M1/40 , H03M1/08
CPC分类号： H03M1/0827 , H03M1/403
摘要： An A/D conversion integrated circuit including a plurality of A/D converters which can inhibit noises from being propagated by capacitive coupling from a conductor which transmits a digital signal is provided. In an A/D converter 13, an input 15 receives an analog signal to be A/D converted. An output 17 provides at least a part of a digital signal SD having a predetermined number of bits representing the analog signal SA. In response to an analog signal SA, a sub-A/D conversion circuit 19 generates a signal SDP representing one or a plurality of bit values of the digital signal SD and feeds the signal SDP to the output 17. An input 21a of a control circuit 21 is connected to an output 19a of the sub-A/D conversion circuit 19 and provides a control signal S CONT corresponding to the signal SDP. The control signal S CONT has a waveform including a transition from a voltage level L1 to a voltage level L2 and a transition from the voltage level L2 to the voltage level L1.
摘要翻译：提供了一种包括多个A / D转换器的A / D转换集成电路，其能够抑制噪声通过电容耦合从传输数字信号的导体传播。在A / D转换器13中，输入端15接收要进行A / D转换的模拟信号。输出17提供具有表示模拟信号SA的预定数量的位的数字信号SD的至少一部分。响应于模拟信号SA，副A / D转换电路19产生表示数字信号SD的一个或多个位值的信号SDP，并将信号SDP馈送到输出17.控制输入端电路21连接到副A / D转换电路19的输出端19a，并提供对应于信号SDP的控制信号S CONT。控制信号S CONT具有包括从电压电平L1到电压电平L2的转变以及从电压电平L2向电压电平L1的转变的波形。

12. 发明公开

EP4119891A1 RANGE IMAGE ACQUISITION DEVICE 审中-实审
公开(公告)号：EP4119891A1
公开(公告)日：2023-01-18
申请号：EP21776666.6
申请日：2021-03-22
申请人： National University Corporation Shizuoka University
发明人： KAWAHITO Shoji
IPC分类号： G01C3/06 , H04N5/374 , H04N7/18 , G01S7/4863 , G01S17/894
摘要： A range image acquisition device 1 includes: a light source 11 generating a pulsed light L P ; a light source control unit 12a controlling the light source 11; a pixel array 14 including a plurality of pixel circuits 13 generating electric charges corresponding to an incident pulsed light L R ; and a peripheral circuit 31 supplying control pulses G 1 to G 4 and G D for controlling an operation of the pixel array 14, a logic pulse E SR(j) , and an inverted signal of the logic pulse E SR(j) to the pixel array 14. The light source control unit 12a repeatedly performs an operation of generating the pulsed light L P so that the incident pulsed light L R based on the pulsed light L P is incident on a sensitive pixel region AE in the pixel array 14 while moving in a sensitive pixel region AE. The peripheral circuit 31 allows the pixel circuits 13 to move the electric charges generated in the photoelectric conversion region 21 to the charge discharging region 23 for the pixel circuits 13 constituting an insensitive pixel region AN, not included in the sensitive pixel region AE.

13. 发明公开

EP3352220A1 SEMICONDUCTOR ELEMENT AND SOLID-STATE IMAGING DEVICE 审中-公开
公开(公告)号：EP3352220A1
公开(公告)日：2018-07-25
申请号：EP16846645.6
申请日：2016-09-16
申请人： National University Corporation Shizuoka University
发明人： KAWAHITO Shoji , SEO Min-Woong
IPC分类号： H01L27/146 , H04N5/357 , H04N5/369 , H04N5/374
CPC分类号： H01L27/14612 , H01L27/146 , H01L27/1461 , H04N5/357 , H04N5/3575 , H04N5/361 , H04N5/363 , H04N5/369 , H04N5/374 , H04N5/3742
摘要： A semiconductor element includes a semiconductor region (11) of a first conductivity type, a buried charge-generation region (16) of a second conductivity type, buried in an upper portion of the semiconductor region (11) to implement a photodiode (D 1 ) together with the semiconductor region (11) to generate charges, a charge-readout region (15) of the second conductivity type, provided in the semiconductor region (11) to accumulate the charges transferred from the buried charge-generation region (16), and a reset-performing region (12) of the second conductivity type, provided in the semiconductor region (11), a variable voltage is applied to the reset-performing region (12) to change the height of a potential barrier generated in the semiconductor region (11) sandwiched between the charge-readout region (15) and the reset-performing region (12) to exhaust the charges accumulated in the charge-readout region (15). The semiconductor element has a high pixel conversion gain, ultralow noise of a photon counting level and implements a solid-state imaging device.

14. 发明公开

EP2782258A1 LAMP SIGNAL GENERATION CIRCUIT AND CMOS IMAGE SENSOR 审中-公开
标题翻译： SCHALTKREIS ZUR ERZEUGUNG EINES LAMPENSIGNALS UND CMOS-BILDSENSOR
公开(公告)号：EP2782258A1
公开(公告)日：2014-09-24
申请号：EP12850707.6
申请日：2012-11-14
申请人： National University Corporation Shizuoka University
发明人： KAWAHITO Shoji , IMAI Kaita
IPC分类号： H03M1/56 , H03K4/02 , H04N5/378
CPC分类号： H03K4/90 , H03K4/026 , H03M1/0646 , H03M1/123 , H03M1/56 , H04N5/376 , H04N5/378
摘要： A ramp signal generation circuit 21 comprises a plurality of unit circuits 22 1 to 22 N , each including a capacitor 26 having one end 26a held at a fixed potential and a current source 27 connected to the other end 26b of the capacitor 26, while the other ends 26b of the capacitors 26 in the plurality of unit circuits 22 1 to 22 N are connected to each other with a wiring member W.
摘要翻译：斜坡信号发生电路21包括多个单位电路22 1至22 N，每个单元电路包括一个电容器26，电容器26的一端26a保持在固定电位，电流源27连接到电容器26的另一端26b，而多个单元电路22 1〜22 N中的电容器26的另一端26b通过配线构件W彼此连接。

15. 发明公开

EP2677661A1 A/D CONVERTER, IMAGE SENSOR DEVICE, AND METHOD OF GENERATING DIGITAL SIGNAL FROM ANALOG SIGNAL 审中-公开
标题翻译： A / D-WANDLER，BILDSENSORVORRICHTUNG UND VERFAHREN ZUR ERZEUGUNG DIGITALER SIGNALE AUS ANALOGEN SIGNALEN
公开(公告)号：EP2677661A1
公开(公告)日：2013-12-25
申请号：EP12747652.1
申请日：2012-02-17
申请人： National University Corporation Shizuoka University
发明人： KAWAHITO Shoji
IPC分类号： H03M1/14
CPC分类号： H03M1/18 , H03M1/162 , H03M1/403 , H03M1/56 , H03M3/39 , H03M3/46 , H04N5/378
摘要： An object of this invention is to realize, with a single-ended configuration, an A/D converter which performs integral A/D conversion, and cyclic A/D conversion of a residual analog signal thereof. According to this A/D converter, a first A/D conversion operation for performing integral A/D conversion and a second A/D conversion operation for performing cyclic A/D conversion are realized based on control of operational procedures in a same circuit configuration. Moreover, in the first A/D conversion operation, since a capacity of a capacitor used in the integration of an output signal is greater than a capacity of a capacitor used for storing an input analog signal and a standard reference voltage, the analog signal that is input in the integral A/D conversion is attenuated according to the capacity ratio and subject to sampling and integration. Consequently, the voltage range of the analog signal that is output in the integral A/D conversion also decreases according to the capacity ratio of the capacitors, and the A/D converter can be therefore constructed with a single-ended configuration.
摘要翻译：本发明的目的是通过单端配置来实现进行整合A / D转换的A / D转换器及其残留模拟信号的循环A / D转换。根据该A / D转换器，通过对相同的电路配置中的操作程序的控制来实现用于执行整合A / D转换的第一A / D转换操作和用于执行循环A / D转换的第二A / D转换操作。此外，在第一A / D转换操作中，由于在输出信号的积分中使用的电容器的容量大于用于存储输入模拟信号和标准参考电压的电容器的容量，所以模拟信号在积分A / D转换中输入根据容量比衰减并进行采样和积分。因此，在积分A / D转换中输出的模拟信号的电压范围也根据电容器的容量比而减小，因此可以以单端配置构建A / D转换器。

16. 发明授权

EP2322953B1 DISTANCE IMAGE SENSOR AND METHOD FOR GENERATING IMAGE SIGNAL BY TIME-OF-FLIGHT METHOD 有权
标题翻译： DSTANZBILDSENSOR和方法用于生成图像信号进行飞行时间议事
公开(公告)号：EP2322953B1
公开(公告)日：2013-01-30
申请号：EP09803021.6
申请日：2009-07-30
申请人： National University Corporation Shizuoka University
发明人： KAWAHITO Shoji
IPC分类号： G01S17/10 , G01S17/89 , H01L27/146 , H04N5/225 , H04N5/335 , G01S7/487 , G01S7/497 , H01L31/02 , H04N5/341 , H04N13/02 , H04N13/00
CPC分类号： H01L27/14603 , G01S7/4863 , G01S17/10 , G01S17/89 , H01L31/02024 , H04N5/341 , H04N13/254
摘要： A distance image sensor capable of enlarging the distance measurement range without reducing the distance resolution is provided. A radiation source 13 provides first to fifth pulse trains P T1 to P T5 which are irradiated to the object as radiation pulses in the first to fifth frames arranged in order on a time axis. In each of the frames, imaging times T PU1 to T PU5 are prescribed at points of predetermined time ”T PD from the start point of each frame, also the pulses P T1 to P T5 are shifted respectively by shift amounts different from each other from the start point of the first to fifth frames. A pixel array 23 generates element image signals S E1 to S E5 each of which has distance information of an object in distance ranges different from each other using imaging windows A and B in each of five frames. A processing unit 17 generates an image signal S IMAGE by combining the element image signals. Since five times-of-flight measurement are used, the width of the radiation pulse does not have to be increased to obtain distance information of the object in a wide distance range, and the distance resolution is not reduced.

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