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    • 1. 发明授权
    • Solid-state imaging element, method of driving the same, and camera system
    • 固态成像元件,驱动方法和相机系统
    • US08773557B2
    • 2014-07-08
    • US13122317
    • 2009-09-16
    • Yuichi KatoYoshikazu NittaNoriyuki FukushimaTakashi SuenagaToshiyuki Sugita
    • Yuichi KatoYoshikazu NittaNoriyuki FukushimaTakashi SuenagaToshiyuki Sugita
    • H04N3/14H04N5/335
    • H04N5/3742H01L27/14609H01L27/14614H01L27/14641H01L27/14643H04N5/347H04N5/3698H04N5/37455H04N5/37457H04N5/378
    • Provided is a solid-state imaging element including pixel signal read lines, and a pixel signal reading unit for reading pixel signals from a pixel unit via the pixel signal read line. The pixel unit includes a plurality of pixels arranged in a matrix form, each pixel including a photoelectric conversion element. In the pixel unit, a shared pixel in which an output node is shared among a plurality of pixels is formed, and a pixel signal of each pixel in the shared pixel is capable of being selectively output from the shared output node to a corresponding one of the pixel signal read lines. The pixel signal reading unit sets a bias voltage for a load element which is connected to the pixel signal read line and in which current dependent on a bias voltage flows in the load element, to a voltage causing a current value to be higher than current upon a reference bias voltage when there is no difference between added charge amounts, when addition of pixel signals of the respective pixels in the shared pixel is driven.
    • 提供了包括像素信号读取线的固态成像元件和用于经由像素信号读取线从像素单元读取像素信号的像素信号读取单元。 像素单元包括以矩阵形式布置的多个像素,每个像素包括光电转换元件。 在像素单元中,形成其中在多个像素之间共享输出节点的共享像素,并且共享像素中的每个像素的像素信号能够被选择性地从共享输出节点输出到 像素信号读取线。 像素信号读取单元设置连接到像素信号读取线的负载元件的偏置电压,并且其中取决于偏置电压的电流在负载元件中流动到使电流值高于当前值的电流 当驱动共享像素中的各个像素的像素信号的相加时,当添加的电荷量之间没有差异时,参考偏置电压。
    • 3. 发明授权
    • Solid-state image pickup device
    • 固态图像拾取装置
    • US08553122B2
    • 2013-10-08
    • US13094420
    • 2011-04-26
    • Yoshikazu NittaNoriyuki FukushimaYoshinori MuramatsuYukihiko Yasui
    • Yoshikazu NittaNoriyuki FukushimaYoshinori MuramatsuYukihiko Yasui
    • H04N3/14H04N5/335
    • H04N5/378H03M1/1023H03M1/56H04N3/1562H04N5/2253H04N5/347H04N5/3742H04N5/37455
    • A system and method for driving a solid-state image pickup device including a pixel array unit including unit pixels. Each unit pixel includes a photoelectric converter, column signal lines and a number of analog-digital converting units. The unit pixels are selectively controlled in units of rows. Analog signals output from the unit pixels in a row selected by the selective control though the column signal lines are converted to digital signals via the analog-digital converting units. The digital signals are added among a number of unit pixels via the analog-digital converting units. The added digital signals from the analog-digital converting units are read. Each unit pixel in the pixel array unit is selectively controlled in units of arbitrary rows, the analog-distal converting units being operable to performing the converting in a (a) normal-frame-rate mode and a (b) high-frame-rate mode in response to control signals.
    • 一种用于驱动包括包括单位像素的像素阵列单元的固态图像拾取装置的系统和方法。 每个单位像素包括光电转换器,列信号线和多个模数转换单元。 以行为单位选择性地控制单位像素。 通过选择性控制通过列信号线选择的行中的单位像素输出的模拟信号经由模拟数字转换单元转换成数字信号。 数字信号通过模拟数字转换单元被添加到多个单位像素中。 读取来自模拟数字转换单元的附加数字信号。 像素阵列单元中的每个单位像素以任意行为单位选择性地被控制,所述模拟 - 远端转换单元可操作以以(a)正常帧速率模式和(b)高帧速率 模式响应于控制信号。
    • 4. 发明授权
    • Digital-to-analog converter, analog-to-digital converter, and semiconductor device
    • 数模转换器,模拟 - 数字转换器和半导体器件
    • US08339300B2
    • 2012-12-25
    • US13098206
    • 2011-04-29
    • Go AsayamaNoriyuki FukushimaYoshikazu NittaYoshinori MuramatsuKiyotaka Amano
    • Go AsayamaNoriyuki FukushimaYoshikazu NittaYoshinori MuramatsuKiyotaka Amano
    • H03M1/66
    • H03M1/66H03M1/0863H03M1/123H03M1/34H03M1/56H03M1/664H03M1/687H03M1/745H03M1/747
    • A DA conversion device includes the following elements. A higher-bit current source cell portion includes uniformly weighted higher-bit current source cells to generate an identical constant current. A lower-bit current source cell portion includes a lower-bit current source cells that are weighted to generate 1/two-to-the-power-of-certain-numbers constant currents. A constant current source selection controller includes a lower-bit controller having a scaler that uses clocks scaled down to 1/two-to-the-power-of-certain-numbers to select the lower-bit current source cells, and a higher-bit controller having shift registers and using a signal indicating a carry bit or a borrow bit used in the lower-bit controller to sequentially activate shift outputs of the shift registers, and uses the shift outputs to select the higher-bit current source cells. Constant current outputs of the selected current source cells are added and output so that an output current corresponding to the digital input signal is obtained.
    • DA转换装置包括以下元件。 较高位的电流源单元部分包括均匀加权的较高位电流源单元以产生相同的恒定电流。 低位电流源单元部分包括被加权以产生特定数目的恒定电流的2/2的功率的低位电流源单元。 恒定电流源选择控制器包括具有缩放器的低位控制器,该定标器使用按比例缩小到1/2到特定数目的功率的时钟来选择低位电流源单元, 位控制器具有移位寄存器并且使用指示在低位控制器中使用的进位位或借位位的信号来顺序地激活移位寄存器的移位输出,并且使用移位输出来选择较高位电流源单元。 添加并输出所选择的电流源单元的恒定电流输出,从而获得与数字输入信号相对应的输出电流。
    • 5. 发明授权
    • AD conversion method and semiconductor device for use in physical quantity distribution detection
    • AD转换方法和用于物理量分布检测的半导体器件
    • US07804535B2
    • 2010-09-28
    • US11119289
    • 2005-04-30
    • Yoshinori MuramatsuNoriyuki FukushimaYoshikazu NittaYukihiro Yasui
    • Yoshinori MuramatsuNoriyuki FukushimaYoshikazu NittaYukihiro Yasui
    • H04N9/083H04N3/14H04N5/335H04N9/04H03M1/12
    • H04N9/083
    • In a solid-state imaging device meeting color image pickup, which an AD converter is mounted on the same chip, the circuit scale and the number of transmission signal lines are reduced and a reference signal suitable for color image pickup is fed to an AD conversion comparing portion. DA converter circuits for two pixels of a repeat unit of a separation filter in the horizontal row direction in a unit of readout are prepared as a functional portion to generate a reference signal for AD conversion. The DA converter circuits generate the reference signals having a tilt in accordance with a color property and varying from an initial value based on a non-color property such as a black reference and a circuit offset. Each reference signal independently outputted from the DA converter circuits is basically directly transmitted through common signal lines to a voltage comparing portion which corresponds to color filters having a common color property through independent signal lines.
    • 在满足将AD转换器安装在同一芯片上的彩色图像拾取的固态成像装置中,电路规模和发送信号线的数量减少,并且适合于彩色图像拾取的参考信号被馈送到AD转换 比较部分。 作为功​​能部分准备水平行方向上的读出单位的分离滤波器的重复单元的两个像素的DA转换器电路,以产生用于AD转换的参考信号。 DA转换器电路根据颜色属性产生具有倾斜的参考信号,并且基于诸如黑色参考和电路偏移的非彩色特性从初始值变化。 从DA转换器电路独立地输出的每个参考信号基本上通过公共信号线直接传输到通过独立信号线对应于具有共同的颜色属性的滤色器的电压比较部分。
    • 6. 发明授权
    • Data processing method, data processing apparatus, semiconductor device, and electronic apparatus
    • 数据处理方法,数据处理装置,半导体装置和电子装置
    • US07786921B2
    • 2010-08-31
    • US11179772
    • 2005-07-12
    • Yoshikazu NittaNoriyuki FukushimaYoshinori MuramatsuYukihiro Yasui
    • Yoshikazu NittaNoriyuki FukushimaYoshinori MuramatsuYukihiro Yasui
    • H03M1/34
    • G06K9/60H04N5/367
    • In a solid-state imaging device with an AD converter mounted on the same chip, to enable an efficient product-sum operation while reducing the size of the circuit scale and the number of transmission signal lines. A pixel signal during an n-row readout period is compared with a reference signal for digitizing this pixel signal, and a counting operation is performed in one of a down-counting mode and an up-counting mode while the comparison processing is being performed, and then, the count value when the comparison processing is finished is stored. Subsequently, by using the n-row counting result as the initial value, a pixel signal during an (n+1)-row readout period is compared with the reference signal for digitizing this pixel signal, and also, the counting operation is performed in one of the down-counting mode and the up-counting mode, and then, the count value when the comparison processing is finished is stored. If the count mode for the n+1 row is set to be opposite to the count mode for the n row, the count value obtained by the counting operation for the n+1 row is a subtraction result. If the count modes for the n+1 row and the n row are set to be the same, the count value obtained by the counting operation for the n+1 row is an addition result.
    • 在具有安装在同一芯片上的AD转换器的固态成像装置中,能够在减小电路规模和发送信号线的数量的同时实现有效的乘积和运算。 将n行读出期间的像素信号与用于数字化该像素信号的参考信号进行比较,并且在执行比较处理时以递减计数模式和递增计数模式中的一个进行计数操作, 然后存储比较处理结束时的计数值。 随后,通过使用n行计数结果作为初始值,将第(n + 1)行读出期间的像素信号与用于数字化该像素信号的参考信号进行比较,并且还进行计数操作 下计数模式和向上计数模式之一,然后存储比较处理结束时的计数值。 如果将n + 1行的计数模式设置为与n行的计数模式相反,则通过n + 1行的计数操作获得的计数值是减法结果。 如果将n + 1行和n行的计数模式设置为相同,则通过n + 1行的计数操作获得的计数值是相加结果。