CMOS circuit for sensor with reduced read noise
    1.
    发明授权
    CMOS circuit for sensor with reduced read noise 有权
    传感器的CMOS电路具有降低的读取噪声

    公开(公告)号:US08969780B2

    公开(公告)日:2015-03-03

    申请号:US13524542

    申请日:2012-06-15

    Applicant: Benoit Dupont

    Inventor: Benoit Dupont

    CPC classification number: H04N5/37457 H01L27/14641 H04N5/3743

    Abstract: A CMOS image sensor having one or more pixels, e.g. in an array, whereby each of the pixels having two or more sub-pixel elements for generating charge according to incident light intensity as well as a common charge sensitive device such as an amplifier coupled to two or more sub-pixel elements of a respective pixel. Charges generated by the two or more sub-pixel elements are added and integrated over respective integration time periods, to provide a signal representing the integrated charges. The circuit can be configured so that the two or more sub-pixel elements have different integration time periods. By combining charges at the charge sensitive device rather than combining outputs of multiple such devices, the amount of read noise can be reduced.

    Abstract translation: 具有一个或多个像素的CMOS图像传感器。 其中每个像素具有用于根据入射光强度产生电荷的两个或更多个子像素元件,以及公共电荷敏感器件,例如耦合到相应像素的两个或更多个子像素元件的放大器 。 由两个或多个子像素元件产生的电荷在相应的积分时间周期上相加并积分,以提供表示积分电荷的信号。 电路可以被配置为使得两个或更多个子像素元件具有不同的积分时间段。 通过在电荷敏感器件上组合电荷而不是组合多个这样的器件的输出,可以减少读取噪声的量。

    DEVICE FOR DETECTING ELECTROMAGNETIC RADIATION, ESPECIALLY INFRARED RADIATION
    3.
    发明申请
    DEVICE FOR DETECTING ELECTROMAGNETIC RADIATION, ESPECIALLY INFRARED RADIATION 有权
    用于检测电磁辐射的装置,特别是红外辐射

    公开(公告)号:US20090008556A1

    公开(公告)日:2009-01-08

    申请号:US12128070

    申请日:2008-05-28

    CPC classification number: G01J5/22 H04N5/33 H04N5/361 H04N5/378

    Abstract: A device for detecting electromagnetic radiation, especially infrared radiation, including an array of elementary bolometers which are sensitive to the incident radiation and are referred to as “active” bolometers and an additional row of bolometers which are substantially insensitive to the radiation and are referred to as “blind” bolometers. The active and blind bolometers are formed on a substrate in which a read circuit is produced for sequential addressing of each of the rows of the array and the row of blind bolometers, each of the bolometers in the same row being biased simultaneously. The read circuit includes a source for producing a reference current (Iref) on the basis of an additional blind bolometer which is also formed on the substrate and means of copying the reference current (Iref) to each of the columns of the array consisting of a current mirror.

    Abstract translation: 一种用于检测电磁辐射的设备,特别是红外线辐射,包括对入射辐射敏感的基本辐射热计阵列,被称为“主动式”测辐射热计,另外一排辐射基本上不受辐射影响 作为“盲人”辐射计。 活动和盲人测辐射热计形成在基板上,其中制造读取电路用于顺序寻址阵列中的每一行和盲辐射热计列,同一行中的每个测辐射热计同时偏置。 读取电路包括用于产生参考电流(Iref)的源,其基于还形成在衬底上的另外的盲测辐射热计,以及将参考电流(Iref)复制到由 电流镜。

    SYSTEM AND METHOD FOR DETECTING INFRARED RADIATION
    4.
    发明申请
    SYSTEM AND METHOD FOR DETECTING INFRARED RADIATION 有权
    用于检测红外辐射的系统和方法

    公开(公告)号:US20120037805A1

    公开(公告)日:2012-02-16

    申请号:US13277661

    申请日:2011-10-20

    CPC classification number: G01J5/24 G01J5/22 H04N5/33 H04N5/3651 H04N5/3655

    Abstract: A device for detecting infrared radiation comprising an array of bolometers for detecting radiation; and in order to read each bolometer, a signal shaping circuitry comprising: a circuitry capable of biasing the bolometer at a predetermined voltage in order to make current flow therethrough; a circuitry capable of generating a common-mode current; and a circuitry capable of integrating the difference between the current that flows through the bolometer and the common-mode current. According to the invention, the device comprises a circuitry capable of injecting current into each bolometer in order to shift its resistance by a predetermined quantity that depends on its offset, current injection being performed prior to readout biasing of the bolometer and the shift being performed according to the direction in which the bolometer's resistance varies as a function of temperature. In addition, correction circuitry is capable of shifting the resistances of bolometers towards a common value.

    Abstract translation: 一种用于检测红外辐射的装置,包括用于检测辐射的辐射计阵列; 并且为了读取每个测辐射热谱仪,信号整形电路包括:能够以预定电压偏置测辐射热计的电路,以使电流流过其中; 能够产生共模电流的电路; 以及能够整合流经测辐射热计的电流与共模电流之间的差异的电路。 根据本发明,该装置包括能够将电流注入每个测辐射热计的电路,以便将其电阻移动预定量,该预定量取决于其偏移量,在测辐射热计读数偏置之前执行电流注入,并根据 测辐射热计的阻力随温度的变化而变化。 此外,校正电路能够将辐射计的电阻转换成公共值。

    MIXED PRECISION FUSED MULTIPLY-ADD OPERATOR
    5.
    发明申请
    MIXED PRECISION FUSED MULTIPLY-ADD OPERATOR 有权
    混合精密加热多功能操作器

    公开(公告)号:US20140089371A1

    公开(公告)日:2014-03-27

    申请号:US14113636

    申请日:2012-04-19

    CPC classification number: G06F7/4876 G06F7/483 G06F7/5443

    Abstract: A circuit for calculating the fused sum of an addend and product of two multiplicands, the addend and multiplicands being binary floating-point numbers represented in a standardized format as a mantissa and an exponent is provided. The multiplicands are in a lower precision format than the addend, with q>2p, where p and q are respectively the mantissa size of the multiplicand precision format and the addend precision format. The circuit includes a p-bit multiplier receiving the mantissas of the multiplicands; a shift circuit that aligns the mantissa of the addend with the product output by the multiplier based on the exponent values of the addend and multiplicands; and an adder that processes q-bit mantissas, receiving the aligned mantissa of the addend and the product, the input lines of the adder corresponding to the product being completed to the right by lines at 0 to form a q-bit mantissa.

    Abstract translation: 提供了用于计算两个被乘数的加数和乘积的融合和的电路,以标准化格式表示为二进制浮点数的加数和乘数作为尾数和指数。 被乘数的格数低于加数,q> 2p,其中p和q分别是被乘数精度格式的尾数大小和加数精度格式。 电路包括接收被乘数的尾数的p位乘法器; 移位电路,根据加数和被乘数的指数值,将加数的尾数与乘数输出的乘积对齐; 以及加法器,处理q位尾数,接收加法和乘积的对齐尾数,对应于乘积的加法器的输入行在0处向右完成,形成q位尾数。

    ACTIVE-PIXEL SENSOR
    6.
    发明申请
    ACTIVE-PIXEL SENSOR 审中-公开
    主动像素传感器

    公开(公告)号:US20100252717A1

    公开(公告)日:2010-10-07

    申请号:US12567079

    申请日:2009-09-25

    CPC classification number: H01L27/14609 H01L27/14643 H03F3/08

    Abstract: The invention relates to an active-pixel sensor including an electromagnetic radiation detector, comprising a transistor amplifier, a series memory capacitor and a parallel load capacitor that are driven by the transistor amplifier.

    Abstract translation: 本发明涉及一种包括电磁辐射检测器的有源像素传感器,包括由晶体管放大器驱动的晶体管放大器,串联存储器电容器和并联负载电容器。

    DEVICE FOR DETECTING INFRARED RADIATION WITH BOLOMETRIC DETECTORS
    7.
    发明申请
    DEVICE FOR DETECTING INFRARED RADIATION WITH BOLOMETRIC DETECTORS 有权
    用BOLOMETRIC检测器检测红外辐射的装置

    公开(公告)号:US20090008555A1

    公开(公告)日:2009-01-08

    申请号:US12127976

    申请日:2008-05-28

    CPC classification number: G01J5/22 H04N5/33 H04N5/361 H04N5/3653

    Abstract: A device for detecting infrared radiation comprising an array of bolometric detectors which are sensitive to incident radiation and are referred to as “active” and a bolometer which is insensitive to said radiation and is referred to as “blind” formed on a substrate in which a read circuit is produced for sequentially addressing each of the rows of detectors of the array, each of the active bolometers in a single row being biased simultaneously. The read circuit also comprises means of producing a reference current (Iref) based on the blind bolometer; means of simultaneously copying the reference current (Iref) for each column of the array; and a plurality of current integrators, each associated with one column of the array and each designed to integrate the difference between the current flowing through the active bolometer of the row which is currently being read and said thus copied reference current.

    Abstract translation: 一种用于检测红外辐射的装置,包括对入射辐射敏感的被称为“有源”的辐射热探测器阵列和对所述辐射不敏感的辐射热计,并在基底上形成“盲” 产生用于顺序寻址阵列的每个检测器行的读取电路,单个行中的每个活动测辐射热板同时偏置。 读取电路还包括基于盲测辐射热计产生参考电流(Iref)的装置; 同时复制阵列的每列的参考电流(Iref)的装置; 以及多个电流积分器,每个电流积分器与阵列的一列相关联,并且每个集成器被设计为整合流过当前正被读取的行的活动测辐射热谱的电流与所述复制的参考电流之间的差。

    DEVICE FOR DETECTING AN ELECTROMAGNETIC RADIATION COMPRISING A RESISTIVE IMAGING BOLOMETER, SYSTEM COMPRISING A MATRIX OF SUCH DEVICES AND METHOD FOR READING AN IMAGING BOLOMETER OF SUCH A SYSTEM
    8.
    发明申请
    DEVICE FOR DETECTING AN ELECTROMAGNETIC RADIATION COMPRISING A RESISTIVE IMAGING BOLOMETER, SYSTEM COMPRISING A MATRIX OF SUCH DEVICES AND METHOD FOR READING AN IMAGING BOLOMETER OF SUCH A SYSTEM 有权
    用于检测包含电阻成像玻璃体的电磁辐射的装置,包含这种装置的矩阵的系统和用于读取这种系统的成像玻璃体的方法

    公开(公告)号:US20090152470A1

    公开(公告)日:2009-06-18

    申请号:US12328915

    申请日:2008-12-05

    CPC classification number: G01J5/24 H04N5/3651

    Abstract: The invention relates to a device for detecting an electromagnetic radiation comprising a resistive imaging bolometer sensitive to the electromagnetic radiation to be detected, intended to be connected electrically to a signal shaping circuit, and a resistive common mode rejection bolometer that is associated electrically with the imaging bolometer, so that the current flowing through the common mode rejection bolometer is subtracted from the current flowing through the imaging bolometer, wherein it comprises means for controlling the resistance of the common mode rejection bolometer by injecting current therein.

    Abstract translation: 本发明涉及一种用于检测电磁辐射的装置,其包括对要被检测的电磁辐射敏感的电阻成像测辐射热计,该电磁辐射计意图与信号整形电路电连接;以及电阻式共模抑制测辐射热谱仪,其与成像电 测量流量计,使流过共模抑制辐射热计的电流从流过成像测辐射热计的电流中减去,其中包括用于通过在其中注入电流来控制共模抑制辐射热计的电阻的装置。

    Mixed precision fused multiply-add operator
    9.
    发明授权
    Mixed precision fused multiply-add operator 有权
    混合精密融合乘法运算符

    公开(公告)号:US09367287B2

    公开(公告)日:2016-06-14

    申请号:US14113636

    申请日:2012-04-19

    CPC classification number: G06F7/4876 G06F7/483 G06F7/5443

    Abstract: A circuit for calculating the fused sum of an addend and product of two multiplication operands, the addend and multiplication operands being binary floating-point numbers represented in a standardized format as a mantissa and an exponent is provided. The multiplication operands are in a lower precision format than the addend, with q>2p, where p and q are the mantissa size of the multiplication operand and addend precision formats. The circuit includes a p-bit multiplier receiving the mantissas of the multiplication operands; a shift circuit aligning the mantissa of the addend with the product output by the multiplier based on the exponent values of the addend and multiplication operands; and an adder processing q-bit mantissas, receiving the aligned mantissa of the addend and the product, the input lines of the adder corresponding to the product being completed to the right by lines at 0 to form a q-bit mantissa.

    Abstract translation: 提供了用于计算两个乘法运算符的加法和乘积的融合和的电路,以标准格式表示为二进制浮点数的加法运算和乘法运算为尾数和指数。 相乘操作数的格式比加数更低,q> 2p,其中p和q是乘法运算符的尾数大小,加上精度格式。 该电路包括一个p位乘法器,用于接收乘法操作数的尾数; 移位电路基于加数和乘法操作数的指数值将加数的尾数与乘数输出的乘积对齐; 以及加法器处理q位尾数,接收加法和乘积的对齐尾数,对应于乘积的加法器的输入行在0处向右逐行,形成q位尾数。

    CMOS CIRCUIT FOR SENSOR WITH REDUCED READ NOISE
    10.
    发明申请
    CMOS CIRCUIT FOR SENSOR WITH REDUCED READ NOISE 有权
    用于传感器的CMOS电路具有降低的读取噪声

    公开(公告)号:US20130334399A1

    公开(公告)日:2013-12-19

    申请号:US13524542

    申请日:2012-06-15

    Applicant: Benoit DUPONT

    Inventor: Benoit DUPONT

    CPC classification number: H04N5/37457 H01L27/14641 H04N5/3743

    Abstract: A CMOS image sensor having one or more pixels, e.g. in an array, whereby each of the pixels having two or more sub-pixel elements for generating charge according to incident light intensity as well as a common charge sensitive device such as an amplifier coupled to two or more sub-pixel elements of a respective pixel. Charges generated by the two or more sub-pixel elements are added and integrated over respective integration time periods, to provide a signal representing the integrated charges. The circuit can be configured so that the two or more sub-pixel elements have different integration time periods. By combining charges at the charge sensitive device rather than combining outputs of multiple such devices, the amount of read noise can be reduced.

    Abstract translation: 具有一个或多个像素的CMOS图像传感器。 其中每个像素具有用于根据入射光强度产生电荷的两个或更多个子像素元件以及公共电荷敏感器件,例如耦合到相应像素的两个或更多个子像素元件的放大器 。 由两个或多个子像素元件产生的电荷在相应的积分时间周期上相加并积分,以提供表示积分电荷的信号。 电路可以被配置为使得两个或更多个子像素元件具有不同的积分时间段。 通过在电荷敏感器件上组合电荷而不是组合多个这样的器件的输出,可以减少读取噪声的量。

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