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公开(公告)号：US08018515B2
公开(公告)日：2011-09-13
申请号：US11883757
申请日：2006-02-02
CPC分类号： H04N5/3559 , H01L27/14603 , H01L27/14609 , H01L27/14643
摘要： There is provided a solid-state imaging device with an improved linearity as well as dynamic range. Each pixel portion Pm,n in the solid-state imaging device includes: a buried photodiode PD for generating charges of an amount corresponding to the intensity of incident light; a capacitive element C connected in parallel to the buried photodiode PD to accumulate charges generated in the buried photodiode PD; an amplifying transistor T1 for outputting a voltage value corresponding to a voltage value input to the gate terminal; a transferring transistor T2 for inputting a voltage value corresponding to the amount of accumulated charges in the capacitive element C to the gate terminal of the amplifying transistor T1; a discharging transistor T3 for discharging the charges of the capacitive element C; and a selecting transistor T4 for selectively outputting a voltage value output from the amplifying transistor T1 to a wiring Ln.
摘要翻译： 提供了具有改进的线性度和动态范围的固态成像装置。 固态成像装置中的每个像素部分Pm，n包括：用于产生与入射光强度相对应的量的电荷的掩埋光电二极管PD; 电容元件C并联连接到掩埋光电二极管PD，以积累在埋入式光电二极管PD中产生的电荷; 放大晶体管T1，用于输出对应于输入到栅极端子的电压值的电压值; 转移晶体管T2，用于将与电容元件C中的累积电荷量相对应的电压值输入到放大晶体管T1的栅极端; 用于对电容元件C的电荷进行放电的放电晶体管T3; 以及选择晶体管T4，用于选择性地将从放大晶体管T1输出的电压值输出到布线Ln。
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公开(公告)号：US20100108862A1
公开(公告)日：2010-05-06
申请号：US12440178
申请日：2007-09-05
IPC分类号： G01J1/44
CPC分类号： G01J1/46 , H01L27/14609 , H04N5/3575 , H04N5/378
摘要： A photodetecting device 1 includes a photodiode PDm,n, a switch SWm,n for the photodiode, an integrating circuit 12m, and a noise removing circuit 13m. The integrating circuit 12m accumulates in a capacitor Cfk an electric charge input from the photodiode PDm,n through the switch SWm,n for the photodiode, and outputs a voltage value according to the amount of the accumulated electric charge. The noise removing circuit 13m includes an amplifier A3, five switches SW31 to SW35, four capacitors C31 to C34, and a power supply V3. The noise removing circuit 13m takes in a voltage value that is output from the integrating circuit 12m at a time where the switch SW31 is first turned from a closed state to an open state, and after the time, outputs a voltage value according to a difference between the voltage value that is output from the integrating circuit 12m and the voltage value previously taken in.
摘要翻译： 光检测器件1包括光电二极管PDm，n，用于光电二极管的开关SWm，n，积分电路12m和噪声去除电路13m。 积分电路12m通过用于光电二极管的开关SWm，n累积从光电二极管PDm，n输入的电荷的电容器Cfk，并输出与累积电荷量相对应的电压值。 噪声消除电路13m包括放大器A3，五个开关SW31至SW35，四个电容器C31至C34以及电源V3。 噪声消除电路13m在开关SW31首先从闭合状态转为断开状态时从积分电路12m输出的电压值，并且在此之后，输出根据差分的电压值 在从积分电路12m输出的电压值与之前采用的电压值之间。
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43.发明授权Encoder including a two dimensional photo-detector having two signal processing sections for pixels in a first and a second direction 有权编码器包括具有用于第一和第二方向上的像素的两个信号处理部分的二维光检测器公开(公告)号：US07687765B2
公开(公告)日：2010-03-30
申请号：US11632205
申请日：2005-07-08
CPC分类号： G01D5/34792
摘要： The present invention relates to an encoder capable of detecting an absolute value of an angle of rotation or the like of a target to be measured by a simple configuration with high accuracy. In the encoder, a photodetecting region of a photodetecting device and regions to be detected arranged on a scale plate satisfy a relational expression of W/2
摘要翻译： 本发明涉及能够通过简单的结构高精度地检测要测量的目标的旋转角等的绝对值的编码器。 在编码器中，光电检测装置的受光区域和配置在刻度板上的被检测区域满足W / 2
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公开(公告)号：US20080253616A1
公开(公告)日：2008-10-16
申请号：US11596070
申请日：2005-05-02
IPC分类号： G06K9/78
CPC分类号： H04N7/18 , G06K9/00771 , G06K2209/15 , G08G1/04 , H04N5/2351 , H04N5/3454 , H04N5/3696
摘要： The present invention relates to, for example, an image pickup system having a structure capable of imaging a subject at a low power consumption and a low cost even when the subject may be dark. The image pickup system comprises an image pickup device, a peak position detecting section, a partial image acquiring section, and a partial image operating section. The image pickup device outputs image data that represents the two-dimensional intensity distribution of light incident on a photodetecting section, and outputs light intensity profile data that represents the one-dimensional intensity distribution of the incident light in each of first and second directions in the photodetecting section. The peak position detecting section detects a light intensity peak position in the two-dimensional intensity distribution of the light incident on the photodetecting section in the image pickup device, based on the light intensity profile data outputted from the image pickup device. The partial image acquiring section acquires a partial image from an entire image that can be imaged by the image pickup device so that the light intensity peak position detected by the peak position detecting section is made a specific position for the partial image in the entire image. The partial image operating section integrates the acquired partial image.
摘要翻译： 本发明涉及例如具有即使当被摄体可能较暗时能够以低功耗和低成本对被摄体进行成像的结构的摄像系统。 图像拾取系统包括图像拾取装置，峰值位置检测部分，部分图像获取部分和部分图像操作部分。 图像拾取装置输出表示入射在光电检测部上的光的二维强度分布的图像数据，并输出表示在第一和第二方向上的入射光的一维强度分布的光强度分布数据 光电检测部分。 峰值位置检测部分基于从图像拾取装置输出的光强度分布数据检测入射在图像拾取装置中的光检测部分的光的二维强度分布中的光强度峰值位置。 部分图像获取部分从可由图像拾取装置成像的整个图像中获取部分图像，使得由峰值位置检测部分检测的光强度峰值位置成为整个图像中的部分图像的特定位置。 部分图像操作部分对所获取的部分图像进行积分。
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公开(公告)号：US20080192134A1
公开(公告)日：2008-08-14
申请号：US11883757
申请日：2006-02-02
IPC分类号： H04N5/335
CPC分类号： H04N5/3559 , H01L27/14603 , H01L27/14609 , H01L27/14643
摘要： There is provided a solid-state imaging device with an improved linearity as well as dynamic range. Each pixel portion Pm,n in the solid-state imaging device includes: a buried photodiode PD for generating charges of an amount corresponding to the intensity of incident light; a capacitive element C connected in parallel to the buried photodiode PD to accumulate charges generated in the buried photodiode PD; an amplifying transistor T1 for outputting a voltage value corresponding to a voltage value input to the gate terminal; a transferring transistor T2 for inputting a voltage value corresponding to the amount of accumulated charges in the capacitive element C to the gate terminal of the amplifying transistor T1; a discharging transistor T3 for discharging the charges of the capacitive element C; and a selecting transistor T4 for selectively outputting a voltage value output from the amplifying transistor T1 to a wiring Ln.
摘要翻译： 提供了具有改进的线性度和动态范围的固态成像装置。 固态成像装置中的每个像素部分P m，n N包括：用于产生与入射光强度相对应的量的电荷的掩埋光电二极管PD; 电容元件C并联连接到掩埋光电二极管PD，以积累在埋入式光电二极管PD中产生的电荷; 用于输出对应于输入到所述栅极端子的电压值的电压值的放大晶体管T 1; 用于将对应于电容元件C中的累积电荷量的电压值输入到放大晶体管T 1的栅极端子的转移晶体管T SUB2 < 用于放电电容元件C的电荷的放电晶体管T 3 3; 以及用于选择性地将从放大晶体管T 1 1输出的电压值输出到布线L n2的选择晶体管T 4。
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公开(公告)号：US20080128601A1
公开(公告)日：2008-06-05
申请号：US11664497
申请日：2005-10-03
IPC分类号： G01D5/34
CPC分类号： G01D5/34792
摘要： An encoder is provided as one capable of accurately detecting an absolute value of an operating angle or the like of a scale plate in a simple configuration.In this encoder, each of light relay portions 4 formed along an operational direction α in the scale plate has a pattern of a one-dimensional array of some of optically transparent potions 5 and optically nontransparent portions 6 different from those of the other light relay portions. This allows the encoder to identify the light relay portion 4 located on a light receiving region 100, based on second light intensity profile data VY(m), using the patterns as codes. In the identification of the light relay portion 4, the light relay portion 4 can be accurately identified with respect to a position of a reference light propagation portion 7 formed for each light relay portion 4 in the scale plate. Furthermore, the encoder is able to calculate a center-of-gravity position of the identified light relay portion 4 relative to a reference position in the light receiving region 100, based on first light intensity profile data VX(n), and to calculate an operating angle of the scale plate from the center-of-gravity position.
摘要翻译： 提供了一种能够以简单的结构精确地检测刻度板的操作角度等的绝对值的编码器。 在该编码器中，沿着刻度板的操作方向α形成的每个光中继部分4具有一些光学透明部分5的一维阵列和与其他光中继部分不同的光学不透明部分6的图案 。 这允许编码器使用图案作为代码，基于第二光强度分布数据V Y（M）来识别位于光接收区域100上的光中继部分4。 在光中继部4的识别中，可以相对于在刻度板上的每个光中继部4形成的基准光传播部7的位置来精确地识别光中继部4。 此外，编码器能够基于第一光强度分布数据V X X计算所识别的光中继部分4相对于光接收区域100中的参考位置的重心位置， （n），并且从重心位置计算刻度板的操作角度。
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公开(公告)号：US20080036887A1
公开(公告)日：2008-02-14
申请号：US10574104
申请日：2004-09-27
IPC分类号： H04N5/335
CPC分类号： H01L27/14609 , H04N5/235 , H04N5/35518 , H04N5/35527
摘要： The present invention relates to a photo-detecting apparatus having a structure for enabling photodetection with high sensitivity and wide dynamic range. When light is incident on a pixel section of an active pixel-type within a photo-detecting section, a voltage value corresponding to the amount of an electric charge generated at a photodiode included in the pixel section is outputted from the pixel section by way of a selecting transistor. A first pixel data readout section outputs the output from the pixel section as a first voltage value. On the other hand, the electric charge generated at the photodiode including the pixel section is outputted from the pixel section by way of a discharging transistor. The electric charge flown in a second pixel data readout section via a switch is accumulated in a capacitive element, and a voltage value corresponding to the amount of the accumulated electric charge is outputted from the second pixel data readout section as a second voltage value. The capacitance value of the capacitive element within the second pixel data readout section is greater than that of the parasitic capacitance section included in the pixel section.
摘要翻译： 本发明涉及具有高灵敏度，宽动态范围的能够进行光检测的结构的光检测装置。 当光入射到光检测部分内的有源像素类型的像素部分时，与像素部分中包括的光电二极管处产生的电荷量对应的电压值从像素部分输出， 选择晶体管。 第一像素数据读出部将像素部的输出作为第一电压值输出。 另一方面，在包括像素部分的光电二极管处产生的电荷通过放电晶体管从像素部分输出。 经由开关在第二像素数据读出部分中流过的电荷被积累在电容元件中，并且与第二像素数据读出部分的累积电荷量对应的电压值作为第二电压值输出。 第二像素数据读出部中的电容元件的电容值大于像素部包含的寄生电容部的电容值。
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公开(公告)号：US20070002407A1
公开(公告)日：2007-01-04
申请号：US11455218
申请日：2006-06-19
IPC分类号： H04N1/04
CPC分类号： G01J3/2803
摘要： An image sensor 20A contains a photodiode array portion 21, a signal processor 22, a switching instruction part 23A and a control part 24A. Each switch SWn is provided between the corresponding photodiode PDn and the common output line L, and instructed to carry out the switching operation by the switching instruction part 23A so as to be closed, whereby the charges accumulated in the junction capacitance portion of the photodiode PDn are output to the common output line L. On the basis of the instruction from the switching instruction part 23A, the N switches SW1 to SWN carry out the switching operation so that the N switches SW1 to SWN are set to the close state in the different periods and the interval at which each switch SWn is set to the close state is equal to an integral multiple of a base period. As described above, the charge accumulation time of each of the N photodiodes PD1 to PDN is set to an integral multiple of the base period.
摘要翻译： 图像传感器20A包含光电二极管阵列部分21，信号处理器22，切换指令部分23A和控制部分24A。每个开关SW N提供在相应的光电二极管PD n 和公共输出线L，并且指示通过切换指令部分23 A执行切换操作以被关闭，由此累积在光电二极管PD的结电容部分中的电荷 n
被输出到公共输出线L.根据来自切换指令部分23A的指令，N个开关SW 1到SW N N / 执行切换操作，使得N个开关SW 1到SW N N在不同的周期和每个开关SW＆lt; 1＆gt;的间隔被设置为关闭状态 n 被设置为关闭状态等于基本周期的整数倍。 如上所述，将N个光电二极管PD 1〜N 1中的每一个的电荷累积时间设定为基准周期的整数倍。 -
公开(公告)号：US20060273238A1
公开(公告)日：2006-12-07
申请号：US10549761
申请日：2004-02-10
IPC分类号： H01L27/00
CPC分类号： G06F3/042 , G01B11/00 , H01L27/14603 , H04N3/1506 , H04N5/335
摘要： A signal processing circuit 20 has switches 21, a shift register 22, and an integrating circuit 23, and outputs voltages Vout indicating luminance profiles in a second direction and in a first direction of light incident to a photosensitive region 10. The switches 21 are provided corresponding to groups of photosensitive portions on one side electrically connected among a plurality of pixels arrayed in the first direction and corresponding to groups of photosensitive portions on another side electrically connected among a plurality of pixels arrayed in the second direction. The shift register 22 is an element for sequentially reading electric currents from the groups of photosensitive portions on one side in the second direction and for sequentially reading electric currents from the groups of photosensitive portions on another side in the first direction. The integrating circuit 23 sequentially imports the electric currents from the groups of photosensitive portions on one side and the groups of photosensitive portions on another side sequentially read by the shift register 22, and converts the electric currents into voltages.
摘要翻译： 信号处理电路20具有开关21，移位寄存器22和积分电路23，并且输出指示第二方向上的亮度分布和入射到感光体的光的第一方向上的电压V OUT 开关21相对于在与第一方向排列的多个像素电连接的一侧上的感光部分组对应地设置，并且对应于在第二方向排列的多个像素之间电连接的另一侧的感光部分的组 方向。 移位寄存器22是从第一方向的另一侧的感光部分组依次读取来自感光部分组的电流的元件。 积分电路23顺序地从一侧的感光部分组和由移位寄存器22顺序读取的另一侧的感光部分组的电流输入电流，并将电流转换成电压。
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公开(公告)号：US20060261254A1
公开(公告)日：2006-11-23
申请号：US10540748
申请日：2003-12-25
申请人： Yasuhiro Suzuki , Seiichiro Mizuno
发明人： Yasuhiro Suzuki , Seiichiro Mizuno
IPC分类号： H01J40/14
CPC分类号： G01J1/46 , H01L27/14609 , H01L27/14661 , H04N5/37455 , H04N5/378
摘要： The present invention aims at providing a photodetector which can improve each of the dynamic range, S/N ratio, and speed of light detection. A photodiode PDm,n generates electric charges by an amount corresponding to the incident light intensity, and accumulates thus generated electric charges into a junction capacitance part. An electric charge amount level determining circuit 10m,n determines the level of amount of electric charges generated by the photodiode PDm,n and accumulated in the junction capacitance part. In an integrating circuit 20m, the capacitance value of an integral capacitance part 21 is set according to the result of electric charge amount level determination, the electric charges inputted from the photodiode PDm,n by way of a switch SW1m,n are accumulated into the integral capacitance part 21, and a voltage V20 corresponding to the amount of thus accumulated electric charges is outputted. The voltage Vinp fed to a non-inverting input terminal of an amplifier A in the integrating circuit 20m is set greater in a second period during which the integral capacitance part 21 of the integrating circuit 20m accumulates electric charges than in a first period during which the junction capacitance part of the photodiode PDm,n accumulates electric charges.
摘要翻译： 本发明的目的在于提供一种可以改善动态范围，S / N比和光检测速度的每个光检测器。 光电二极管PD＆lt; m＆gt; m＆lt; n＆gt;产生与入射光强度相对应的量的电荷，并将由此产生的电荷累积到结电容部分中。 电荷量水平确定电路10 m，n N确定由结合电容部分中累积的光电二极管PD m m n n产生的电荷量。 在积分电路20中，积分电容部分21的电容值根据电荷量水平确定的结果设定，从光电二极管PD m m输入的电荷 通过开关SW1＆lt; m，n＆gt;累积到积分电容部分21中，并且与这样积累的电荷量相对应的电压V 20 < 被输出。 馈送到积分电路20中的放大器A的非反相输入端子的电压V in in 在第二周期内被设定得更大，在该周期期间，积分电容部分21 积分电路20＆lt; m＆gt;累积电荷比在光电二极管PD＆lt; m＆gt; m的结电容部分累积电荷的第一周期。
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