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：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.