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1.发明授权Solid state imaging device and differential circuit having an expanded dynamic range 有权具有扩展动态范围的固态成像装置和差分电路公开(公告)号：US08866059B2
公开(公告)日：2014-10-21
申请号：US13055863
申请日：2009-07-23
IPC分类号： H01L27/00 , H01L27/146 , H04N5/235 , H04N5/355
CPC分类号： H01L27/14603 , H01L27/14643 , H01L27/14645 , H04N5/2355 , H04N5/35572 , H04N5/3559
摘要： A solid-state imaging device that is configurable into a small size appropriate for expanding dynamic range includes: a photodiode which is a photoelectric conversion unit that generates charge by incident light; a MOS transistor which is connected to the photodiode and transfers the charge; a floating diffusion region which is a first accumulation unit which accumulates the charge via the MOS transistor; a MOS transistor which is a second transfer unit connected to the floating diffusion region and connected in series to the MOS transistor; and a MOS transistor which is an output unit which outputs, via the MOS transistor, a signal voltage in accordance with an amount of the charge.
摘要翻译： 可配置为适于扩展动态范围的小尺寸的固态成像装置包括：光电二极管，其是通过入射光产生电荷的光电转换单元; 连接到光电二极管并传送电荷的MOS晶体管; 浮动扩散区域，其是通过MOS晶体管积累电荷的第一累积单元; MOS晶体管，其是与所述浮动扩散区域连接并与所述MOS晶体管串联连接的第二转移单元; 以及MOS晶体管，其是经由MOS晶体管输出根据电荷量的信号电压的输出单元。
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公开(公告)号：US20110121162A1
公开(公告)日：2011-05-26
申请号：US13055863
申请日：2009-07-23
IPC分类号： H01L27/146
CPC分类号： H01L27/14603 , H01L27/14643 , H01L27/14645 , H04N5/2355 , H04N5/35572 , H04N5/3559
摘要： A solid-state imaging device that is configurable into a small size appropriate for expanding dynamic range includes: a photodiode which is a photoelectric conversion unit that generates charge by incident light; a MOS transistor which is connected to the photodiode and transfers the charge; a floating diffusion region which is a first accumulation unit which accumulates the charge via the MOS transistor; a MOS transistor which is a second transfer unit connected to the floating diffusion region and connected in series to the MOS transistor; and a MOS transistor which is an output unit which outputs, via the MOS transistor, a signal voltage in accordance with an amount of the charge.
摘要翻译： 可配置为适于扩展动态范围的小尺寸的固态成像装置包括：光电二极管，其是通过入射光产生电荷的光电转换单元; 连接到光电二极管并传送电荷的MOS晶体管; 浮动扩散区域，其是通过MOS晶体管积累电荷的第一累积单元; MOS晶体管，其是与所述浮动扩散区域连接并与所述MOS晶体管串联连接的第二转移单元; 以及MOS晶体管，其是经由MOS晶体管输出根据电荷量的信号电压的输出单元。
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公开(公告)号：US07956916B2
公开(公告)日：2011-06-07
申请号：US12195584
申请日：2008-08-21
IPC分类号： H04N5/335
CPC分类号： H04N5/37452 , H04N5/35581 , H04N5/3559
摘要： Provided is a solid-state imaging device having pixel units that are two-dimensionally arranged, and including: a photodiode that generates an optical signal charge corresponding to an intensity and an exposure time of light; a MOS transistor that transfers the optical signal charge; an accumulating unit that generates a voltage corresponding to the signal charge through the MOS transistor; a storing unit that stores a voltage corresponding to an optical signal charge in the accumulating unit; and a voltage setting unit that sets a value of a voltage in the accumulating unit to a value corresponding to the voltage in the storing unit.
摘要翻译： 提供一种具有二维排列的像素单元的固态成像装置，包括：产生对应于光的强度和曝光时间的光信号电荷的光电二极管; 传输光信号电荷的MOS晶体管; 累积单元，其产生对应于通过MOS晶体管的信号电荷的电压; 存储单元，其将与所述积累单元中的光信号电荷相对应的电压存储; 以及电压设定单元，其将所述累积单元中的电压值设定为与所述存储单元中的电压对应的值。
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4.发明授权Solid-state imaging device comprising a holding circuit and driving method thereof 有权固态成像装置，包括保持电路及其驱动方法公开(公告)号：US08817143B2
公开(公告)日：2014-08-26
申请号：US13271466
申请日：2011-10-12
CPC分类号： H04N5/361 , H01L27/14643 , H04N5/3742 , H04N5/3745
摘要： A plurality of pixel circuits arranged in rows and columns, and each of which outputs an electric signal according to an amount of received light; a first column signal line provided for each of the columns, and for sequentially transferring the electric signals from said pixel circuits in a corresponding column; and a holding circuit provided for each of the pixel circuits in each column, and which holds the electric signal transferred through the column signal line in the corresponding column are provided. A holding circuit includes a first capacitor which holds a first electric signal of the corresponding pixel circuit in a reset state; and a second capacitor which holds a second electric signal after the corresponding pixel circuit receives light. A difference circuit calculates a difference between two electric signals held by the first capacitor and the second capacitor in a same holding circuit.
摘要翻译： 多个以行和列排列的像素电路，每个像素电路根据接收的光量输出电信号; 为每个列提供的第一列信号线，并且用于从相应列中的所述像素电路顺序传送电信号; 并且提供为每列中的每个像素电路提供并保持通过相应列中的列信号线传送的电信号的保持电路。 保持电路包括：第一电容器，其将相应像素电路的第一电信号保持在复位状态; 以及在相应的像素电路接收光之后保持第二电信号的第二电容器。 差分电路在相同的保持电路中计算由第一电容器和第二电容器保持的两个电信号之间的差。
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5.发明授权Solid-state imaging device, semiconductor integrated circuit, and signal processing method 有权固态成像装置，半导体集成电路和信号处理方法公开(公告)号：US07791524B2
公开(公告)日：2010-09-07
申请号：US12388105
申请日：2009-02-18
IPC分类号： H03M1/12
CPC分类号： H04N5/378 , H04N5/3742
摘要： A solid-state imaging device includes: pixel circuits arranged in a matrix which perform photoelectric conversion on received light; and an AD conversion unit converting the resultant signal voltage of the photoelectric conversion. The AD conversion unit includes: a reference voltage generation unit generating plural reference voltages which are different from each other within a possible range for a signal voltage; a most significant bit conversion unit that identifies a voltage section including the signal voltage from among the voltage sections each having a corresponding one of the reference voltages as a base point and determines the identified result as the value of the most significant bit of the digital signal; and a least significant bit conversion unit that converts, into the least significant bit of the digital signal, the difference voltage between the signal voltage and the reference voltage as the base point of the identified voltage section.
摘要翻译： 固态成像装置包括：以接收光进行光电转换的矩阵状的像素电路; 以及转换所得到的光电转换信号电压的AD转换单元。 AD转换单元包括：在信号电压的可能范围内产生彼此不同的多个参考电压的参考电压产生单元; 一个最高有效位转换单元，其识别包括每个具有对应的一个参考电压的电压部分中的信号电压的电压部分作为基点，并将所识别的结果确定为数字信号的最高有效位的值 ; 以及最低有效位转换单元，其将所述信号电压和所述参考电压之间的差电压转换为所述数字信号的最低有效位作为所识别的电压部分的基点。
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公开(公告)号：US20090033780A1
公开(公告)日：2009-02-05
申请号：US12091138
申请日：2006-07-11
IPC分类号： H04N5/335
CPC分类号： H04N9/045 , H04N5/3742 , H04N5/378
摘要： An object of the present invention is to provide a two-dimensional solid state imaging device which can realize speeding up of signal output. The two-dimensional solid state imaging device includes: a pixel region; a first capacitance element and a second capacitance element each of which is arranged for a different column of pixels and accumulates pixel signals of the corresponding column of pixels; a first horizontal signal line and a second horizontal signal line each of which transmits the pixel signals accumulated in a corresponding capacitance element; a common signal line connected to the horizontal signal lines; a scan timing generation unit and a switch unit which control readout of the pixel signals from the capacitance element to the horizontal signal line; and an external output timing unit and a switch unit which select the horizontal signal line and control output of the pixel signals from the selected horizontal signal line to the common signal line. Here, the scan timing generation unit and the switch unit, and the external output timing unit and the switch unit control the readout and the output of the pixel signals, respectively, so that a time period required for the readout of the pixel signals from the capacitance element to the signal line is longer than a time period required for the output of the pixel signals from the signal line to the common signal line.
摘要翻译： 本发明的目的是提供一种可实现信号输出加速的二维固态成像装置。 二维固态成像装置包括：像素区域; 第一电容元件和第二电容元件，每个元件被布置用于不同的像素列并且累积相应列的像素的像素信号; 第一水平信号线和第二水平信号线，每个信号线发送累积在对应的电容元件中的像素信号; 连接到水平信号线的公共信号线; 扫描定时生成单元和开关单元，其控制从电容元件到水平信号线的像素信号的读出; 以及外部输出定时单元和开关单元，其选择水平信号线并将所选择的水平信号线的像素信号的输出控制到公共信号线。 这里，扫描定时生成单元和开关单元以及外部输出定时单元和开关单元分别控制像素信号的读出和输出，从而从像素信号读出所需的时间周期 信号线的电容元件比从信号线到公共信号线的像素信号的输出所需的时间长。
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公开(公告)号：US20080266159A1
公开(公告)日：2008-10-30
申请号：US12104128
申请日：2008-04-16
IPC分类号： H03M1/12
CPC分类号： H03M1/144 , H03M1/1225 , H03M1/146 , H03M1/362 , H04N5/335
摘要： The present invention provides a solid-state imaging device which can output a digital signal at a high speed without using a high-speed clock. The solid-state imaging device includes light receiving elements provided in an array and generating signal voltages based on light intensity of received light and AD converters each of which is provided in each of columns in the array. Each of the AD converters includes: a reference voltage generating unit (10) generating reference voltages; comparators (11a through 11c) comparing in parallel a current signal voltage which is one of signal voltages generated by the light receiving elements in the respective matrix columns with the reference voltages generated by the reference voltage generating unit; a digital signal generating circuit (23) generating a digital signal showing a result of the comparison and outputting the digital signal out of the AD converter.
摘要翻译： 本发明提供了一种可以在不使用高速时钟的情况下高速输出数字信号的固态成像装置。 固态成像装置包括设置在阵列中的光接收元件，并且基于接收光的光强度产生信号电压，并且每个AD转换器设置在阵列中的每列中。 每个AD转换器包括：产生参考电压的参考电压产生单元（10） 比较器（11a至11c）将由各个矩阵列中的光接收元件产生的信号电压之一与由参考电压产生单元产生的参考电压并联的电流信号电压进行比较; 数字信号发生电路（23），产生表示比较结果的数字信号，并从AD转换器输出数字信号。
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公开(公告)号：US20080018517A1
公开(公告)日：2008-01-24
申请号：US11822589
申请日：2007-07-09
IPC分类号： H03M1/34
CPC分类号： H03M1/188 , H03M1/0607 , H03M1/0675 , H03M1/56 , H03M1/58
摘要： An AD converter includes an analog data storing unit, a first DA converter for converting an input digital data into a first analog reference voltage which varies within a first voltage range in a range of every possible signal voltage of the input analog data, a second DA converter for converting the input digital data into a second analog reference voltage which varies within a second voltage range in the range of every possible signal voltage of the input analog data, a first comparator for comparing the input analog data with the first reference voltage, a second comparator for comparing the input analog data with the second reference voltage and a digital data storing unit for storing a digital data corresponding to a point of time when a change of state occurs in the comparison results of each of the first and second comparators.
摘要翻译： AD转换器包括模拟数据存储单元，第一DA转换器，用于将输入数字数据转换成在输入模拟数据的每个可能的信号电压的范围内在第一电压范围内变化的第一模拟参考电压;第二DA 转换器，用于将输入数字数据转换成在输入模拟数据的每个可能的信号电压的范围内在第二电压范围内变化的第二模拟参考电压，用于将输入的模拟数据与第一参考电压进行比较的第一比较器， 第二比较器，用于将输入模拟数据与第二参考电压进行比较;以及数字数据存储单元，用于存储对应于在第一和第二比较器中的每一个的比较结果中发生状态改变的时间点的数字数据。
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公开(公告)号：US20070109432A1
公开(公告)日：2007-05-17
申请号：US11528523
申请日：2006-09-28
申请人： Takumi Yamaguchi , Takahiko Murata , Shigetaka Kasuga , Takayoshi Yamada , Yoshiyuki Matsunaga , Ryohei Miyagawa
发明人： Takumi Yamaguchi , Takahiko Murata , Shigetaka Kasuga , Takayoshi Yamada , Yoshiyuki Matsunaga , Ryohei Miyagawa
CPC分类号： H04N5/3741 , H04N5/3742
摘要： A solid state imaging device includes an imaging area where a plurality of first pixels and a plurality of second pixels are respectively arranged in the form of a matrix, each of the first pixels and the second pixels having a photoelectric conversion portion and outputting a signal in accordance with brightness of incident light when selected; a plurality of first memories that respectively store signals of selected first pixels out of the plurality of first pixels; and a plurality of second memories that are respectively connected in parallel to the first memories and respectively store signals of selected second pixels out of the plurality of second pixels. The signals stored in the first memories and in the second memories are successively read to a horizontal signal line.
摘要翻译： 固态成像装置包括其中多个第一像素和多个第二像素分别以矩阵形式布置的成像区域，每个第一像素和第二像素具有光电转换部分，并且输出信号 根据入射光的亮度选择; 多个第一存储器，分别存储多个第一像素中所选择的第一像素的信号; 以及分别与第一存储器并联连接并分别存储多个第二像素中所选择的第二像素的信号的多个第二存储器。 存储在第一存储器和第二存储器中的信号被连续地读取到水平信号线。
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公开(公告)号：US07683817B2
公开(公告)日：2010-03-23
申请号：US12104128
申请日：2008-04-16
IPC分类号： H03M1/34
CPC分类号： H03M1/144 , H03M1/1225 , H03M1/146 , H03M1/362 , H04N5/335
摘要： The present invention provides a solid-state imaging device which can output a digital signal at a high speed without using a high-speed clock. The solid-state imaging device includes light receiving elements provided in an array and generating signal voltages based on light intensity of received light and AD converters each of which is provided in each of columns in the array. Each of the AD converters includes: a reference voltage generating unit (10) generating reference voltages; comparators (11a through 11c) comparing in parallel a current signal voltage which is one of signal voltages generated by the light receiving elements in the respective matrix columns with the reference voltages generated by the reference voltage generating unit; a digital signal generating circuit (23) generating a digital signal showing a result of the comparison and outputting the digital signal out of the AD converter.
摘要翻译： 本发明提供了一种可以在不使用高速时钟的情况下高速输出数字信号的固态成像装置。 固态成像装置包括设置在阵列中的光接收元件，并且基于接收光的光强度产生信号电压，并且每个AD转换器设置在阵列中的每列中。 每个AD转换器包括：产生参考电压的参考电压产生单元（10） 比较器（11a至11c）将作为由各个矩阵列中的光接收元件产生的信号电压之一的电流信号电压与由参考电压产生单元产生的参考电压并联进行比较; 产生表示比较结果的数字信号的数字信号发生电路（23），并将数字信号从AD转换器输出。
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