公开(公告)号：US07391449B2

公开(公告)日：2008-06-24

申请号：US10870336

申请日：2004-06-17

Applicant: Laurent Simony

Inventor： Laurent Simony

IPC: H04N9/64

CPC classification number: H04N5/335 ,  H04N5/361

Abstract: For each current image output from a pixel matrix, the digital words relative to at least one masked line of the matrix are processed to generate a current correction digital code. From this code, a black level compensation signal is generated and applied as an offset control on pixel signal amplification. If the current correct digital code does not differ from the code calculated for a previous image output by a predetermined amount, then the code for the previous image is instead used to generate the black level compensation signal.

Abstract translation: 对于从像素矩阵输出的每个当前图像，处理相对于矩阵的至少一个屏蔽线的数字字以产生电流校正数字码。 根据该代码，产生黑电平补偿信号，作为像素信号放大的偏移控制。 如果当前正确的数字代码与对于先前图像输出计算的代码没有不同的预定量，则用于先前图像的代码用于生成黑电平补偿信号。

公开(公告)号：US07189955B2

公开(公告)日：2007-03-13

申请号：US11127766

申请日：2005-05-11

Applicant: Laurent Simony

Inventor： Laurent Simony

IPC: H01L27/00 ,  H04N5/217

CPC classification number: H04N5/365 ,  H04N5/363

Abstract: A device for correcting the reset noise and/or the fixed pattern noise of an active pixel comprising a photosensitive element, the device comprising a transmission circuit connecting the photosensitive element to a correction node and operating with a first or a second transmission gain; a circuit for providing a correction voltage equal to the sum of a constant voltage and of the noise multiplied by an amplification gain equal to the inverse of the difference between the first and second transmission gains; and a correction circuit capable of bringing the correction node from the constant voltage to the correction voltage, the transmission circuit having the first transmission gain, and of bringing the correction node to the constant voltage, the transmission circuit having the second transmission gain.

Abstract translation: 一种用于校正包括感光元件的有源像素的复位噪声和/或固定图案噪声的装置，该装置包括将感光元件连接到校正节点并以第一或第二传输增益操作的传输电路; 用于提供等于恒定电压和噪声之和乘以与第一和第二传输增益之间的差的倒数的放大增益的和的校正电压的电路; 以及校正电路，其能够将来自所述恒定电压的所述校正节点从所述校正电压引起，所述发送电路具有所述第一发送增益，并且使所述校正节点达到所述恒定电压，所述发送电路具有所述第二发送增益。

公开(公告)号：US20050264660A1

公开(公告)日：2005-12-01

申请号：US11127766

申请日：2005-05-11

Applicant: Laurent Simony

Inventor： Laurent Simony

IPC: H01L27/146 ,  H04N5/217 ,  H04N5/363 ,  H04N5/365

CPC classification number: H04N5/365 ,  H04N5/363

Abstract: A device for correcting the reset noise and/or the fixed pattern noise of an active pixel comprising a photosensitive element, the device comprising a transmission circuit connecting the photosensitive element to a correction node and operating with a first or a second transmission gain; a circuit for providing a correction voltage equal to the sum of a constant voltage and of the noise multiplied by an amplification gain equal to the inverse of the difference between the first and second transmission gains; and a correction circuit capable of bringing the correction node from the constant voltage to the correction voltage, the transmission circuit having the first transmission gain, and of bringing the correction node to the constant voltage, the transmission circuit having the second transmission gain.

Abstract translation: 一种用于校正包括感光元件的有源像素的复位噪声和/或固定图案噪声的装置，该装置包括将感光元件连接到校正节点并以第一或第二传输增益操作的传输电路; 用于提供等于恒定电压和噪声之和乘以与第一和第二传输增益之间的差的倒数的放大增益的和的校正电压的电路; 以及校正电路，其能够将来自所述恒定电压的所述校正节点从所述校正电压引起，所述发送电路具有所述第一发送增益，并且使所述校正节点达到所述恒定电压，所述发送电路具有所述第二发送增益。

公开(公告)号：US20050024502A1

公开(公告)日：2005-02-03

申请号：US10870336

申请日：2004-06-17

Applicant: Laurent Simony

Inventor： Laurent Simony

IPC: H04N5/335 ,  H04N5/361 ,  H04N5/228

CPC classification number: H04N5/335 ,  H04N5/361

Abstract: For each current image output from a pixel matrix, the digital words relative to at least one masked line of the matrix are processed to generate a current correction digital code. From this code, a black level compensation signal is generated and applied as an offset control on pixel signal amplification. If the current correct digital code does not differ from the code calculated for a previous image output by a predetermined amount, then the code for the previous image is instead used to generate the black level compensation signal.

Abstract translation: 对于从像素矩阵输出的每个当前图像，处理相对于矩阵的至少一个屏蔽线的数字字以产生电流校正数字码。 根据该代码，产生黑电平补偿信号，作为像素信号放大的偏移控制。 如果当前正确的数字代码与对于先前图像输出计算的代码没有不同的预定量，则用于先前图像的代码用于生成黑电平补偿信号。

公开(公告)号：US06658446B1

公开(公告)日：2003-12-02

申请号：US09647537

申请日：2000-10-02

Applicant: Laurent Simony ,  Stéphane Le Tual ,  Marc Wingender

Inventor： Laurent Simony ,  Stéphane Le Tual ,  Marc Wingender

IPC: G06F750

CPC classification number: G06F7/5013

Abstract: A chainable adder receives bits (A, B, C) to give complementary sum outputs (SO, SO*) and carry outputs (CO, CO*). A first stage has differential pairs (P1, P2, P3) receiving bits (A, B, C), respectively, and complements (A*, B*, C*), respectively. The pairs have common output arms and are powered by an identical current (I). First and second output arms include resistors (R1, R2, R3) and (R4, R5, R6), respectively, connected-in-series to a reference potential (M). The resistors define intermediate nodes (A1, A2, A3) in the first arm, (B1, B2, B3) in the second arm. Carry outputs are taken at nodes (A2, B2). A second stage has differential pairs (P4, P5, P6) whose inputs are connected to nodes (A1, B3) for pair (P4), (A2, B2) for pair (P5), and (A3, B1) for pair (P6). Pairs (P4, P6) each have a common arm with the pair (P5) and a non-common arm. The sum outputs are constituted by a combination, according to an “OR” function, of logic states on the non-common arm of one of pairs (P4, P6) and on the common arm of another of pairs (P4, P6).

Abstract translation: 可连接的加法器接收比特（A，B，C）以给出补码和输出（SO，SO *）和进位输出（CO，CO *），第一级具有差分对（P1，P2，P3） ，B，C）和补充（A *，B *，C *）。 这些对具有共同的输出臂并由相同的电流（I）供电。 第一和第二输出臂分别包括与参考电位（M）串联连接的电阻器（R1，R2，R3）和（R4，R5，R6）。 电阻器定义第二臂中的中间节点（A1，A2，A3），（B1，B2，B3）。 在节点（A2，B2）处进行进位输出。第二级具有差分对（P4，P5，P6），其输入连接到用于对（P4），（A2，B2）的对（P4），（A2，B2） P5）和（A3，B1）对（P6）。 对（P4，P6）每个都有一对共同的臂（P5）和一个非共同的臂。 总和输出由一对（P4，P6）和另一对（P4，P6）的公共臂上的逻辑状态的组合来构成。

公开(公告)号：US08569673B2

公开(公告)日：2013-10-29

申请号：US13182071

申请日：2011-07-13

Applicant: Laurent Simony

Inventor： Laurent Simony

IPC: H01L27/00

CPC classification number: H04N5/378 ,  H04N5/3745

Abstract: An image sensor includes an active pixel, an amplifier stage, and a voltage-limiting stage. The active pixel is configured to generate an information signal. The amplifier stage is coupled to the active pixel and configured to amplify the information signal. The voltage-limiting stage is coupled to the amplifier stage and includes a current shunting device and a gain device. The current shunting device has a first terminal connected to an output of the amplifier stage, a second terminal connected to a reference voltage node, and a control terminal. The gain device is connected to the control terminal of the current shunting device and configured to decrease the voltage span required to cause the current shunting device to enter into a current shunting mode.

Abstract translation: 图像传感器包括有源像素，放大器级和限压级。 有源像素被配置为生成信息信号。 放大器级耦合到有源像素并被配置为放大信息信号。 电压限制级耦合到放大器级并且包括电流分流装置和增益装置。 电流分流装置具有连接到放大器级的输出的第一端子，连接到参考电压节点的第二端子和控制端子。 增益装置连接到电流分流装置的控制端子，并且被配置为减小使电流分流装置进入电流分流模式所需的电压跨度。

公开(公告)号：US20120126094A1

公开(公告)日：2012-05-24

申请号：US13293969

申请日：2011-11-10

Applicant: Laurent Simony ,  Benoit Deschamps ,  Alexandre Cellier ,  Frédéric Barbier

Inventor： Laurent Simony ,  Benoit Deschamps ,  Alexandre Cellier ,  Frédéric Barbier

IPC: H01L27/146 ,  H03M1/56 ,  H03M1/00 ,  H03M1/58

CPC classification number: H03M1/58 ,  H03M1/201 ,  H03M1/56

Abstract: A method of analog to digital voltage conversion including: generating a quadratic signal based on an analog time varying reference signal; generating a ramp signal based on the quadratic signal; and converting an analog input voltage to a digital output value based on a time duration determined by a comparison of the analog input voltage with the ramp signal.

Abstract translation: 一种模数电压转换方法，包括：基于模拟时变参考信号产生二次信号; 基于二次信号产生斜坡信号; 并且基于通过模拟输入电压与斜坡信号的比较确定的持续时间，将模拟输入电压转换为数字输出值。

公开(公告)号：US20120012736A1

公开(公告)日：2012-01-19

申请号：US13182071

申请日：2011-07-13

Applicant: Laurent Simony

Inventor： Laurent Simony

IPC: H01L27/146

CPC classification number: H04N5/378 ,  H04N5/3745

Abstract: Image sensor, comprising a matrix of active pixels having several columns for delivering at least one information signal of an active pixel, the sensor comprising means for processing the information signals delivered by the said active pixels which comprise at least one amplification stage biased by a current source, the processing means comprising a device for voltage-limiting the signal delivered on an output terminal of the said at least one amplification stage comprising an input terminal connected to the output terminal, a first transistor connected between the input terminal and a reference terminal connected to a reference power supply source, a gain device comprising an input connected to the input terminal, an output connected to the gate of the first transistor and configured so as to decrease the voltage span necessary to cause the first transistor to toggle from its off state to a state in which it absorbs the current provided by the said current source.

Abstract translation: 图像传感器，包括具有多个列的有源像素的矩阵，用于传送有源像素的至少一个信息信号，所述传感器包括用于处理由所述有源像素传递的信息信号的装置，所述信号信号包括由电流偏置的至少一个放大级 源，所述处理装置包括用于对所述至少一个放大级的输出端子上传送的信号进行电压限制的装置，包括连接到输出端子的输入端子，连接在输入端子和连接到参考端子之间的第一晶体管 参考电源，增益装置，包括连接到所述输入端的输入端，连接到所述第一晶体管的栅极的输出，并且被配置为减小使所述第一晶体管从其截止状态切换所需的电压跨度 到其吸收由所述电流源提供的电流的状态。

公开(公告)号：US07126636B2

公开(公告)日：2006-10-24

申请号：US10437741

申请日：2003-05-14

Applicant: Laurent Simony

Inventor： Laurent Simony

IPC: H04N3/14

CPC classification number: H04N5/363

Abstract: A low-noise CMOS active pixel for image sensors comprises a photosensitive element (PD), a feedback capacitive element (CF) with a capacitance CF, and four transistors, namely a first transistor (M1), two reset transistors (M3, M4) and one pixel selection transistor (M2). These components are laid out and controlled in such a way that the first transistor (M1) is mounted as an amplifier during the pixel reset phase and as a follower during the read phase. The reset transistors (M3, M4) are parallel-connected so that one of them (M4) compensates for the negative effects of the other transistor (M3) on the node common to the two transistors.

Abstract translation: 用于图像传感器的低噪声CMOS有源像素包括光敏元件（PD），具有电容C F F的反馈电容元件（CF）和四个晶体管，即第一晶体管（M 1） ，两个复位晶体管（M 3，M 4）和一个像素选择晶体管（M2）。 这些部件被布置和控制，使得第一晶体管（M 1）在像素复位阶段期间作为放大器安装，并且在读取阶段期间作为跟随器安装。 复位晶体管（M 3，M 4）并联，使得它们中的一个（M 4）补偿两个晶体管公共的节点上的另一个晶体管（M 3）的负面影响。

公开(公告)号：US07982652B2

公开(公告)日：2011-07-19

申请号：US12543071

申请日：2009-08-18

Applicant: Laurent Simony ,  Lionel Vogt

Inventor： Laurent Simony ,  Lionel Vogt

IPC: H03M1/12

CPC classification number: H03M1/20 ,  H03M1/164 ,  H03M1/182 ,  H03M1/187 ,  H03M1/44 ,  H03M1/46 ,  H03M1/56

Abstract: A method of analog-to-digital conversion over n bits of an analog signal, including the steps of: comparing the amplitude of the analog signal with a threshold representing the amplitude of the full-scale analog signal divided by 2k, where k is an integer smaller than n; performing an analog-to-digital conversion of the analog signal over n−k bits to obtain the n−k most significant bits of a binary word over n bits if the result of the comparison step indicates that the amplitude of the input signal is greater than the threshold, and the n−k least significant bits of this binary word otherwise. An analog-to-digital converter and its application to image sensors.

Abstract translation: 一种在模拟信号的n位上进行模数转换的方法，包括以下步骤：将模拟信号的幅度与表示满量程模拟信号的幅度除以2k的阈值进行比较，其中k是 小于n的整数; 如果比较步骤的结果指示输入信号的幅度较大，则在n-k位上执行模拟信号的模数转换以获得n比特以上的二进制字的n-k个最高有效位 否则该二进制字的n-k个最低有效位。 一种模数转换器及其对图像传感器的应用。