公开(公告)号：US09992432B2

公开(公告)日：2018-06-05

申请号：US14987372

申请日：2016-01-04

Applicant: Sensors Unlimited, Inc.

Inventor： Jonathan Nazemi

IPC: H04N5/365 ,  H04N5/33 ,  H04N5/378 ,  H04N5/374 ,  G01J5/00 ,  H05B1/02

CPC classification number: H04N5/3655 ,  H04N5/33 ,  H04N5/3651 ,  H04N5/378

Abstract: A method of normalizing FPA system gain and correcting pixel non-uniformity for varying temperature includes determining an FPA temperature, calculating an FPA system gain as a function of the FPA temperature, and applying the FPA system gain at the FPA temperature to condition output of the FPA to produce temperature independent image data. The method also includes calculating a non-uniformity correction map on a pixel by pixel basis for the FPA, wherein non-uniformity correction for each pixel is a function of the FPA temperature, and applying the non-uniformity correction map to the imaging data from the FPA to produce temperature dependent non-uniformity corrected image data. An imaging system includes a focal plane array (FPA), a temperature sensor operatively connected to measure temperature of the FPA, and a module configured for system gain correction and non-uniformity correction as described above.

公开(公告)号：US09961277B2

公开(公告)日：2018-05-01

申请号：US14751437

申请日：2015-06-26

Applicant: FLIR Systems, Inc.

Inventor： Theodore R. Hoelter ,  Mark Nussmeier ,  Eric A. Kurth ,  Nicholas Högasten ,  Katrin Strandemar ,  Pierre Boulanger ,  Barbara Sharp

IPC: H04N5/33 ,  H04N5/225 ,  G01J5/04 ,  H01L27/146 ,  G01J5/06 ,  G01J5/08 ,  G01J5/20 ,  H04N5/365 ,  G01J5/02 ,  G01J5/00

CPC classification number: H04N5/33 ,  G01J5/025 ,  G01J5/0265 ,  G01J5/027 ,  G01J5/04 ,  G01J5/061 ,  G01J5/0881 ,  G01J5/20 ,  G01J2005/0077 ,  G01J2005/202 ,  H01L27/14618 ,  H01L27/14683 ,  H01L2224/48091 ,  H01L2224/73265 ,  H04N5/2257 ,  H04N5/332 ,  H04N5/3655 ,  H04N5/3656 ,  H01L2924/00014

Abstract: In one embodiment, an infrared (IR) sensor module includes an IR sensor assembly, including a substrate, a microbolometer array disposed on an upper surface of the substrate; and a cap disposed on the upper surface of the substrate and hermetically enclosing the microbolometer array. A base is disposed below the substrate, and a heat spreader having a generally planar portion is interposed between a lower surface of the substrate and an upper surface of the base. In some embodiments, the heat spreader can include a material having an anisotropic thermal conductivity, e.g., graphite.

公开(公告)号：US20180063455A1

公开(公告)日：2018-03-01

申请号：US15663937

申请日：2017-07-31

Applicant: CANON KABUSHIKI KAISHA

Inventor： Daisuke Wakamiya

IPC: H04N5/365 ,  H04N5/345 ,  H04N5/232 ,  H04N5/374 ,  H04N5/361

CPC classification number: H04N5/3655 ,  H04N5/23293 ,  H04N5/3454 ,  H04N5/361 ,  H04N5/3742

Abstract: An image processing apparatus comprises: a first circuit; and a second circuit connected to the first circuit; wherein the first circuit receives image data obtained by an image sensor including a vertical light-shielded region and an effective region, and applies, on image data of a first region which is a portion of the effective region of the image data, predetermined image processing by using image data of the vertical light-shielded region, the first circuit sets a second region and consecutively transmits to the second circuit image data of the vertical light-shielded region and unprocessed image data of the second region, and the second circuit receives the transmitted image data, and applies the predetermined image processing to the received image data by using the received image data of the vertical light-shielded region.

公开(公告)号：US20170339354A1

公开(公告)日：2017-11-23

申请号：US15588899

申请日：2017-05-08

Applicant: Wavefront Research, Inc.

Inventor： Thomas A. Mitchell

IPC: H04N5/365 ,  H04N5/235 ,  H04N17/00 ,  H04N5/33 ,  H04N5/238

CPC classification number: H04N5/3651 ,  H04N5/33 ,  H04N5/3655 ,  H04N17/002

Abstract: Optical systems that provide non-uniformity correction devices that are capable of providing low radiance level sources.

公开(公告)号：US20170307764A1

公开(公告)日：2017-10-26

申请号：US15528108

申请日：2015-09-07

Applicant: Sharp Kabushiki Kaisha

Inventor： Kunihiko IIZUKA ,  Shigenari TAGUCHI

IPC: G01T1/20 ,  H01L27/146

CPC classification number: G01T1/20 ,  H01L27/146 ,  H04N5/32 ,  H04N5/363 ,  H04N5/3655 ,  H04N5/378

Abstract: A radiation detector (radiation sensor 1) includes a sensor element (3) and an amplifying transistor (5), reads a current value that flows between the drain and the source based on a change in voltage of a gate electrode of the amplifying transistor (5), and also includes a reset reading circuit (10) that includes an amplifier (11) and reads the current value, and the reset reading circuit (10) outputs an initial voltage to the gate electrode so that the current value becomes a value that is determined in advance.

公开(公告)号：US09791322B2

公开(公告)日：2017-10-17

申请号：US15105504

申请日：2014-12-01

Applicant: Commissariat à l'Energie Atomique et aux Energies Alternatives

Inventor： Laurent Alacoque

IPC: G01J5/02 ,  G01J5/22 ,  H04N5/33 ,  G01J5/00 ,  G01J5/20

CPC classification number: G01J5/22 ,  G01J2005/0077 ,  G01J2005/202 ,  H04N5/33 ,  H04N5/3655

Abstract: A measurement circuit for a resistive sensor comprises an integrator of information representative of the difference between a current passing through the sensor and a first reference current, and a circuit for making the output of the integrator depend on a reference level.

公开(公告)号：US20170214869A1

公开(公告)日：2017-07-27

申请号：US15328207

申请日：2015-07-23

Applicant: Rambus Inc.

Inventor： John LADD ,  Michael GUIDASH ,  Craig M. SMITH ,  Thomas VOGELSANG ,  Jay ENDSLEY ,  Michael T. CHING ,  James E. HARRIS

IPC: H04N5/357 ,  H04N5/369 ,  H04N5/378 ,  H04N5/365

CPC classification number: H04N5/3655 ,  H04N5/355 ,  H04N5/357 ,  H04N5/3575 ,  H04N5/3651 ,  H04N5/3698 ,  H04N5/3745 ,  H04N5/37455 ,  H04N5/378

Abstract: A sequence of control voltage levels are applied to a control signal line capacitively coupled to a floating diffusion node of a pixel to sequentially adjust a voltage level of the floating diffusion node. A pixel output signal representative of the voltage level of the floating diffusion node is compared with a reference voltage to identify a first control voltage level of the sequence of control voltage levels for which the voltage level of the floating diffusion node exceeds the reference voltage.

公开(公告)号：US20170171487A1

公开(公告)日：2017-06-15

申请号：US15442566

申请日：2017-02-24

Applicant: Sony Corporation

Inventor： Hayato Wakabayashi ,  Yoshiaki Inada ,  Ken Koseki

IPC: H04N5/378 ,  H04N5/361 ,  H04N5/357 ,  H04N5/3745 ,  H04N5/365

CPC classification number: H04N5/378 ,  H04N5/335 ,  H04N5/3575 ,  H04N5/361 ,  H04N5/3655 ,  H04N5/3658 ,  H04N5/3745 ,  H04N5/37455

Abstract: Disclosed herein is an image pickup circuit including: amplifying means for amplifying a charge corresponding to an amount of light received by a photodetector, and outputting a pixel signal; ramp signal generating means for generating a ramp signal whose voltage drops with a fixed slope from a predetermined initial voltage; and comparing means for comparing the pixel signal output by the amplifying means with the ramp signal output by the ramp signal generating means. A reference potential of the pixel signal output by the amplifying means and a reference potential of the ramp signal output by the ramp signal generating means are at a same level.

公开(公告)号：US09584102B2

公开(公告)日：2017-02-28

申请号：US14560371

申请日：2014-12-04

Applicant: CISTA SYSTEM CORP.

Inventor： Dennis Tunglin Lee ,  Guangbin Zhang

IPC: H03K4/02 ,  H04N5/378 ,  H03K4/08 ,  H03K4/12 ,  H03K4/26

CPC classification number: H04N5/3765 ,  H03K4/02 ,  H03K4/08 ,  H03K4/12 ,  H03K4/26 ,  H03K4/48 ,  H04N5/3655 ,  H04N5/3658 ,  H04N5/378

Abstract: A system is provided for generating a ramping signal. The system includes a plurality of storage circuits each including an input and an output. The output of a previous storage circuit is connected to the input of a next storage circuit. The storage circuits are configured to propagate a first enable signal based on a first control signal. The system also includes a plurality of first current generating circuits. Each first current generating circuit is coupled to the output of a corresponding storage circuit to receive the propagated first enable signal. The first current generating circuits are configured to generate a first current signal based on the propagated first enable signal.

Abstract translation: 提供了一种用于产生斜坡信号的系统。 该系统包括多个存储电路，每个存储电路包括输入和输出。 先前存储电路的输出连接到下一个存储电路的输入端。 存储电路被配置为基于第一控制信号传播第一使能信号。 该系统还包括多个第一电流产生电路。 每个第一电流产生电路耦合到相应的存储电路的输出，以接收传播的第一使能信号。 第一电流产生电路被配置为基于传播的第一使能信号产生第一电流信号。

公开(公告)号：US20160195431A1

公开(公告)日：2016-07-07

申请号：US14978172

申请日：2015-12-22

Applicant: Katsuhiko Aisu ,  Hirofumi Watanabe ,  Takaaki Negoro ,  Yoshinori Ueda ,  Yasukazu Nakatani ,  Kazuhiro Yoneda ,  Katsuyuki Sakurano

Inventor： Katsuhiko Aisu ,  Hirofumi Watanabe ,  Takaaki Negoro ,  Yoshinori Ueda ,  Yasukazu Nakatani ,  Kazuhiro Yoneda ,  Katsuyuki Sakurano

IPC: G01J1/44

CPC classification number: G01J1/44 ,  G01J2001/444 ,  G01J2001/4473 ,  H04N5/361 ,  H04N5/3655 ,  H04N5/378

Abstract: A photoelectric conversion device includes a pixel cell including a phototransistor, a reference cell including a reference transistor having a temperature characteristic identical to that of the phototransistor and having a fixed electrical state, an analog-to-digital converter that converts an analog output of the pixel cell into a digital output, a correction amount computation unit that computes a correction amount for the digital output of the analog-to-digital converter based on an output of the reference cell and a reference value, and a correction unit that corrects the digital output of the analog-to-digital converter based on the correction amount.

Abstract translation: 光电转换装置包括具有光电晶体管的像素单元，具有与光电晶体管的温度特性相同的具有固定电气状态的参考晶体管的参考晶体管，转换模拟输出的模数转换器 像素单元转换为数字输出;校正量计算单元，其基于所述参考单元的输出和参考值计算所述模数转换器的数字输出的校正量，以及校正单元， 基于校正量的模数转换器的输出。