公开(公告)号：US20200027911A1

公开(公告)日：2020-01-23

申请号：US16175662

申请日：2018-10-30

Applicant: SRI International

Inventor： John Robertson Tower ,  Robert Michael Guidash ,  Peter Alan Levine ,  Rui Zhu

IPC: H01L27/146 ,  H04N5/3745 ,  H04N5/355

Abstract: An imaging system for capturing light over a wide dynamic range and method for operating the same are provided. In some aspects, the method includes positioning an imaging pixel to image a scene described by light signals that extend over a wide dynamic range, and selecting a different integration time for at least two photodiodes in the imaging pixel based on light signals received by the imaging pixel, wherein the photodiodes are coupled to a sense node, and each photodiode is controlled using a different transfer gate. The method also includes performing a readout of the imaging pixel using a readout circuit connected to the sense node, wherein a capacitance associated with the sense node is modified during the readout of the at least two photodiodes.

公开(公告)号：US10257448B1

公开(公告)日：2019-04-09

申请号：US15238063

申请日：2016-08-16

Applicant: SRI International

Inventor： John Robertson Tower ,  Robert Michael Guidash ,  Peter Alan Levine ,  Rui Zhu

IPC: H04N5/355 ,  H04N5/374 ,  H04N5/378 ,  H04N5/353 ,  H01L27/146

Abstract: An imaging system for capturing light over a wide dynamic range and method for operating the same are provided. In some aspects, the method includes positioning an imaging pixel to image a scene described by light signals that extend over a wide dynamic range, and selecting a different integration time for at least two photodiodes in the imaging pixel based on light signals received by the imaging pixel, wherein the photodiodes are coupled to a sense node, and each photodiode is controlled using a different transfer gate. The method also includes performing a readout of the imaging pixel using a readout circuit connected to the sense node, wherein a capacitance associated with the sense node is modified during the readout of the at least two photodiodes.

公开(公告)号：US20140097328A1

公开(公告)日：2014-04-10

申请号：US13645206

申请日：2012-10-04

Applicant: SRI INTERNATIONAL

Inventor： Peter Alan Levine ,  Rui Zhu ,  Thomas Richard Senko ,  John Robertson Tower

IPC: H01L27/146

CPC classification number: H04N5/2351 ,  H04N5/243

Abstract: An imager has an array of pixels arranged in rows and columns, readout circuitry electrically coupled to the columns to receive signals from the pixels, the readout circuitry having at least one signal path with gain switching, and a threshold detector electrically coupled to the readout circuitry to set a gain to be applied by the readout circuitry.

Abstract translation: 成像器具有排列成行和列的像素阵列，电耦合到列以接收来自像素的信号的读出电路，读出电路具有至少一个具有增益切换的信号路径，以及电耦合到读出电路的阈值检测器 以设置由读出电路应用的增益。

公开(公告)号：US20230041955A1

公开(公告)日：2023-02-09

申请号：US17817841

申请日：2022-08-05

Applicant: SRI International

Inventor： Namwoong Paik ,  Peter Alan Levine

IPC: H01L27/146 ,  G02B5/20

Abstract: In general, the disclosure describes a sensor comprising a photo-sensitive silicon substrate configured to detect ultraviolet (UV), visible, and near-infrared (NIR) light and an upconversion layer comprising a plurality of crystals configured to convert short wave infrared light to UV, visible, or NIR light. An example sensor includes an upconversion layer comprising a plurality of crystals configured to convert electromagnetic radiation comprising a first range of wavelengths greater than 1100 nm to electromagnetic radiation comprising a second range of wavelengths less than or equal to 1100 nm and a photo-sensitive silicon substrate configured to detect the electromagnetic radiation comprising the second range of wavelengths.

公开(公告)号：US10535690B1

公开(公告)日：2020-01-14

申请号：US16175662

申请日：2018-10-30

Applicant: SRI International

Inventor： John Robertson Tower ,  Robert Michael Guidash ,  Peter Alan Levine ,  Rui Zhu

IPC: H04N5/355 ,  H01L27/146 ,  H04N5/3745 ,  H04N5/353

Abstract: An imaging system for capturing light over a wide dynamic range and method for operating the same are provided. In some aspects, the method includes positioning an imaging pixel to image a scene described by light signals that extend over a wide dynamic range, and selecting a different integration time for at least two photodiodes in the imaging pixel based on light signals received by the imaging pixel, wherein the photodiodes are coupled to a sense node, and each photodiode is controlled using a different transfer gate. The method also includes performing a readout of the imaging pixel using a readout circuit connected to the sense node, wherein a capacitance associated with the sense node is modified during the readout of the at least two photodiodes.

公开(公告)号：US08987647B2

公开(公告)日：2015-03-24

申请号：US13645206

申请日：2012-10-04

Applicant: SRI International

Inventor： Peter Alan Levine ,  Rui Zhu ,  Thomas Richard Senko ,  John Robertson Tower

IPC: H01L27/00 ,  H04N5/235 ,  H04N5/243

CPC classification number: H04N5/2351 ,  H04N5/243

Abstract: An imager has an array of pixels arranged in rows and columns, readout circuitry electrically coupled to the columns to receive signals from the pixels, the readout circuitry having at least one signal path with gain switching, and a threshold detector electrically coupled to the readout circuitry to set a gain to be applied by the readout circuitry.

Abstract translation: 成像器具有排列成行和列的像素阵列，电耦合到列以接收来自像素的信号的读出电路，读出电路具有至少一个具有增益切换的信号路径，以及电耦合到读出电路的阈值检测器 以设置由读出电路应用的增益。