-
公开(公告)号：US20230120430A1
公开(公告)日：2023-04-20
申请号：US17938632
申请日：2022-10-06
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yasuharu Ota , Taichi Kasugai
IPC: H01L31/107 , H01L31/02 , G01J1/44
Abstract: A photoelectric conversion apparatus includes a plurality of pixels each including a respective avalanche photodiode, wherein the plurality of pixels includes an active pixel that outputs a photon detection signal according to detection of a photon and an inactive pixel that does not output the photon detection signal, and wherein the photoelectric conversion apparatus further includes a control unit that recharges a voltage to be applied between an anode and a cathode of the avalanche photodiode of the inactive pixel.
-
公开(公告)号：US12238432B2
公开(公告)日：2025-02-25
申请号：US18047223
申请日：2022-10-17
Applicant: CANON KABUSHIKI KAISHA
Inventor： Taichi Kasugai , Yasuharu Ota , Shintaro Takenaka
Abstract: An apparatus includes a pixel unit including a plurality of pixels arranged in a plurality of rows and each including a quench element of which a control node a signal defining a start and an end of an exposure period is input to and a photodiode connected to the quench element, a scan unit that scans the pixel unit by performing processing of reading signals of the pixels, processing of starting the exposure period, and processing of ending the exposure period on the plurality of rows sequentially in units of one row or two or more rows, and a control unit that outputs a synchronization signal to the scan unit to control a timing of the reading processing, wherein at least one of a timing of the start processing and a timing of the end processing is controlled by another control signal different from the synchronization signal.
-
公开(公告)号：US11778347B2
公开(公告)日：2023-10-03
申请号：US17930262
申请日：2022-09-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Satoshi Suzuki , Shintaro Takenaka , Taichi Kasugai
IPC: H04N25/621 , H04N23/84 , H04N25/50 , H04N25/75
CPC classification number: H04N25/621 , H04N23/84 , H04N25/50 , H04N25/75
Abstract: A photoelectric conversion device includes a plurality of unit pixels each including a charge holding portion to which charges are transferred from four or more photoelectric conversion units. Sensitivity of each photoelectric conversion unit of a first group to incident light is greater than sensitivity of each photoelectric conversion unit of a second group to the incident light. After charge accumulation is started in all the photoelectric conversion units of the second group, charge accumulation is started in the photoelectric conversion units of the first group. After signals corresponding to charges accumulated in all the photoelectric conversion units of the second group are read out, signals corresponding to charges accumulated in the photoelectric conversion units of the first group are read out.
-
公开(公告)号：US11838668B2
公开(公告)日：2023-12-05
申请号：US17729731
申请日：2022-04-26
Applicant: CANON KABUSHIKI KAISHA
Inventor： Taichi Kasugai , Shintaro Takenaka
IPC: H04N25/768 , H04N25/767 , H04N25/772
CPC classification number: H04N25/768 , H04N25/767 , H04N25/772
Abstract: The photoelectric conversion device includes pixels each including photoelectric converters and a floating diffusion to which charges of the photoelectric converters are transferred, a vertical scanning unit for performing readout processing and reset processing on the pixels while switching the photoelectric converter to be processed and the floating diffusion to be processed, and a control unit that controls the vertical scanning unit. The control unit includes a readout row address generation unit and a reset row address generation unit that generate a row address to be processed. A first cycle in which the photoelectric converter is switched is shorter than a second cycle in which the floating diffusion is switched, an update cycle of the row address is equal to the second cycle, and a setting unit of an update timing of the row address is equal to the length of one cycle of the first cycle.
-
公开(公告)号：US20230122042A1
公开(公告)日：2023-04-20
申请号：US18047191
申请日：2022-10-17
Applicant: CANON KABUSHIKI KAISHA
Inventor： Shinya Igarashi , Taichi Kasugai
Abstract: A device includes a pixel unit, a selection unit, and a first generation unit. The pixel unit has a plurality of pixels arranged in a plurality of rows. Each pixel includes a quenching circuit configured to receive a signal for determining start and end of an exposure period and a photodiode coupled to the quenching circuit. The selection unit is configured to simultaneously receive a plurality of clock signals of different periods and select a clock signal to be outputted from the plurality of clock signals. The first generation unit is configured to generate the signal by using the outputted clock.
-
Patent Agency Ranking
公开(公告)号：US11425325B2
公开(公告)日：2022-08-23
申请号：US16987544
申请日：2020-08-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Taichi Kasugai , Atsushi Shimada
IPC: H04N5/378 , H01L27/148 , H01L27/146 , H04N5/3745
Abstract: A driving apparatus that outputs a drive signal for driving, per row, a plurality of pixels arranged to form a plurality of rows, the driving apparatus comprising a plurality of row driving units arranged to correspond to the respective rows, wherein each of the row driving units includes: a memory unit that holds a signal for controlling the pixels in a corresponding row to be set to a charge accumulation state or a reset state; and a selection unit that selects whether to cause a state of the signal held in the memory unit to transition when a signal for readout from the pixels is input.
-
公开(公告)号：US20230119511A1
公开(公告)日：2023-04-20
申请号：US18047223
申请日：2022-10-17
Applicant: CANON KABUSHIKI KAISHA
Inventor： Taichi Kasugai , Yasuharu Ota , Shintaro Takenaka
Abstract: An apparatus includes a pixel unit including a plurality of pixels arranged in a plurality of rows and each including a quench element of which a control node a signal defining a start and an end of an exposure period is input to and a photodiode connected to the quench element, a scan unit that scans the pixel unit by performing processing of reading signals of the pixels, processing of starting the exposure period, and processing of ending the exposure period on the plurality of rows sequentially in units of one row or two or more rows, and a control unit that outputs a synchronization signal to the scan unit to control a timing of the reading processing, wherein at least one of a timing of the start processing and a timing of the end processing is controlled by another control signal different from the synchronization signal.
-
公开(公告)号：US20230077775A1
公开(公告)日：2023-03-16
申请号：US17930262
申请日：2022-09-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Satoshi Suzuki , Shintaro Takenaka , Taichi Kasugai
Abstract: A photoelectric conversion device includes a plurality of unit pixels each including a charge holding portion to which charges are transferred from four or more photoelectric conversion units. Sensitivity of each photoelectric conversion unit of a first group to incident light is greater than sensitivity of each photoelectric conversion unit of a second group to the incident light. After charge accumulation is started in all the photoelectric conversion units of the second group, charge accumulation is started in the photoelectric conversion units of the first group. After signals corresponding to charges accumulated in all the photoelectric conversion units of the second group are read out, signals corresponding to charges accumulated in the photoelectric conversion units of the first group are read out.
-
公开(公告)号：US20220353450A1
公开(公告)日：2022-11-03
申请号：US17729731
申请日：2022-04-26
Applicant: CANON KABUSHIKI KAISHA
Inventor： Taichi Kasugai , Shintaro Takenaka
IPC: H04N5/374 , H04N5/3745
Abstract: The photoelectric conversion device includes pixels each including photoelectric converters and a floating diffusion to which charges of the photoelectric converters are transferred, a vertical scanning unit for performing readout processing and reset processing on the pixels while switching the photoelectric converter to be processed and the floating diffusion to be processed, and a control unit that controls the vertical scanning unit. The control unit includes a readout row address generation unit and a reset row address generation unit that generate a row address to be processed. A first cycle in which the photoelectric converter is switched is shorter than a second cycle in which the floating diffusion is switched, an update cycle of the row address is equal to the second cycle, and a setting unit of an update timing of the row address is equal to the length of one cycle of the first cycle.
-
公开(公告)号：US20210051286A1
公开(公告)日：2021-02-18
申请号：US16987544
申请日：2020-08-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Taichi Kasugai , Atsushi Shimada
IPC: H04N5/378 , H04N5/3745 , H01L27/146 , H01L27/148
Abstract: A driving apparatus that outputs a drive signal for driving, per row, a plurality of pixels arranged to form a plurality of rows, the driving apparatus comprising a plurality of row driving units arranged to correspond to the respective rows, wherein each of the row driving units includes: a memory unit that holds a signal for controlling the pixels in a corresponding row to be set to a charge accumulation state or a reset state; and a selection unit that selects whether to cause a state of the signal held in the memory unit to transition when a signal for readout from the pixels is input.
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.011 seconds)
