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公开(公告)号：US20220075037A1
公开(公告)日：2022-03-10
申请号：US17200087
申请日：2021-03-12
Inventor： Hiroshi KUBOTA , Nobu MATSUMOTO
IPC: G01S7/4863 , G01S7/481
Abstract: According to one embodiment, a light detector includes pixels arranged in first and second directions in a pixel area, and a control section. The control section is configured to turn on a first subset of the pixels in a first partial area based on first coordinate information, and to turn on a second subset of the pixels in a second partial area based on second coordinate information different from the first coordinate information. A first tilt of the first partial pixel area differs from a second tilt of the second partial pixel area.
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公开(公告)号：US20210063575A1
公开(公告)日：2021-03-04
申请号：US17001882
申请日：2020-08-25
Inventor： Hiroshi KUBOTA , Nobu MATSUMOTO
IPC: G01S17/58 , G01S17/10 , G01S7/4865
Abstract: A distance measuring device is a distance measuring device that performs processing on a time-series luminance signal generated on the basis of a sensor output corresponding to reflected light of laser light. The distance measuring device includes a storage circuit and a determination circuit. The storage circuit stores a first time-series luminance signal based on reflected light from a first measurement target of laser light and a second time-series luminance signal based on reflected light from a second measurement target of laser light. The determination circuit determines, on the basis of correlation between the first time-series luminance signal and the second time-series luminance signal, whether the first measurement target and the second measurement target are the same measurement target.
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公开(公告)号：US20220302189A1
公开(公告)日：2022-09-22
申请号：US17458121
申请日：2021-08-26
Inventor： Mitsuhiro SENGOKU , Nobu MATSUMOTO , Koichi KOKUBUN
IPC: H01L27/146 , H01L31/0352
Abstract: A semiconductor device includes element regions which each include a first region of a first conductivity type, a second region of the first conductivity type on the first region and having a higher impurity concentration than that of the first region, a third region of a second conductivity type on the second region. The second region is between the first and third regions in a first direction. A first insulating portion surrounds each element region in a first plane. A fourth region of the first conductivity type surrounds each element region and the first insulating portion in the first plane. The fourth region has a higher impurity concentration than that of the first region. A quenching structure is above a part of the fourth region in the first direction and electrically connected to the third region.
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公开(公告)号：US20220236385A1
公开(公告)日：2022-07-28
申请号：US17717606
申请日：2022-04-11
Inventor： Hiroshi KUBOTA , Nobu MATSUMOTO
IPC: G01S7/4863 , G01J1/44 , G01S7/487 , G01S17/10 , H01L31/107
Abstract: According to one embodiment, a light detector includes: a first set of light detection elements and a second set of light detection elements each being disposed in a first region on a substrate; and a first selection and integration circuit and a second selection and integration circuit each being disposed in a second region outside of the first region on the substrate. The first selection and integration circuit is configured to select a first subset of light detection elements in the first set, and integrate outputs from the light detection elements in the first subset. The second selection and integration circuit is configured to select a second subset of light detection elements in the second set, and integrate outputs from the light detection elements in the second subset.
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公开(公告)号：US20210088660A1
公开(公告)日：2021-03-25
申请号：US17001735
申请日：2020-08-25
Inventor： Hiroshi KUBOTA , Nobu MATSUMOTO
Abstract: A distance measuring device according to this embodiment includes a plurality of sensors, a switching circuit, and a distance measurement circuit. The plurality of sensors that convert reflected light of laser light received via a light-receiving optical system into an electric signal. The plurality of sensors respectively have different light receiving positions with respect to the light-receiving optical system. The switching circuit switches and outputs an output signal output from a first sensor used for measurement and an output signal output from a second sensor used for measurement after the measurement by the first sensor among the plurality of sensors. The distance measurement circuit measures the distance to a measurement target object on the basis of a time difference between light emission timing of the laser light and timing of a peak position of a time-series luminance signal based on the output signal of the switching circuit.
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Patent Agency Ranking
公开(公告)号：US20180081040A1
公开(公告)日：2018-03-22
申请号：US15448468
申请日：2017-03-02
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Hiroshi KUBOTA , Nobu MATSUMOTO , Tomonori FUKUSHIMA
CPC classification number: G01S7/4863 , G01S7/4865 , G01S17/10
Abstract: A method for determining photodetector elements used for measurement, from photodetector elements of a photodetector device, includes directing measurement light to an object, such that the measurement light reflected by the object is incident on the photodetector device, selecting a group of candidate photodetector elements that are consecutively arranged to each other from the plurality of photodetector elements, and obtaining an output signal from each of the candidate photodetector elements of the group when the reflected measurement light is incident on the photodetector device. The method further comprises repeatedly shifting the group of candidate photodetector elements to select a new group of candidate photodetector elements that are consecutively arranged, obtaining the output signal from each of the candidate photodetector elements of each newly-selected group, and determining the photodetector elements used for measurement, based on the output signals from the candidate photodetector elements of each selected group.
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公开(公告)号：US20230296733A1
公开(公告)日：2023-09-21
申请号：US18176914
申请日：2023-03-01
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Masatoshi HIRONO , Hiroshi KUBOTA , Nobu MATSUMOTO , Katsuyuki KIMURA
CPC classification number: G01S7/4817 , G01S7/4811 , G01S17/10
Abstract: A LiDAR device according to an embodiment includes a rotating mirror having reflective surfaces, first/second light emitters each emitting light toward the rotating mirror, and first/second light receivers each receiving light reflected by the rotating mirror and converting the received light into an electrical signal. The first light emitter emits light in an orientation where an upper section of a distance measurement range is scanned. The second light emitter emits light in an orientation where a lower section of the distance measurement range is scanned. The first light receiver is provided at a position where light emitted by the first light emitter and reflected at the distance measurement range is received via the rotating mirror. The second light receiver is provided at a position where light emitted by the second light emitter and reflected at the distance measurement range is received via the rotating mirror.
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公开(公告)号：US20210302551A1
公开(公告)日：2021-09-30
申请号：US17016926
申请日：2020-09-10
Inventor： Hiroshi KUBOTA , Nobu MATSUMOTO
IPC: G01S7/4865 , G01S7/4863 , G01S17/10
Abstract: A light detector according to an embodiment includes a light receiver and a controller. The controller is configured to set first and second light-receiving regions. The first light-receiving region includes first and second pixel regions. The second light-receiving region includes a third pixel region. An area of the third pixel region is larger than a total area of the first and second pixel regions. The light receiver is configured to, when light is applied: cause each of the first and second pixel regions within the first light-receiving region to individually output a signal; and cause the third pixel region within the second light-receiving region to output signals collectively.
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公开(公告)号：US20200300621A1
公开(公告)日：2020-09-24
申请号：US16556490
申请日：2019-08-30
Inventor： Hiroshi KUBOTA , Nobu MATSUMOTO
Abstract: A sensor includes an avalanche photodiode (APD), a first resistor, a second resistor, and a rectification element. The first resistor is connected between a current output terminal of the APD and a first output terminal. The second resistor and the rectification element are connected in series between the current output terminal and a second output terminal. The rectification element is connected between the second resistor and the second output terminal.
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公开(公告)号：US20230228854A1
公开(公告)日：2023-07-20
申请号：US18183147
申请日：2023-03-13
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Hiroshi KUBOTA , Nobu MATSUMOTO , Tomonori FUKUSHIMA
IPC: G01S7/4863 , G01S7/4865 , G01S17/10
CPC classification number: G01S7/4863 , G01S7/4865 , G01S17/10
Abstract: A photodetector includes a plurality of cells each configured to detect light and including: a light receiving element configured to output an electrical signal upon receipt of the light, a resistor connected to the light receiving element, and first and second switches connected to the resister. Either the first switch or the second switch is turned on according to a selection signal. The photodetector further includes a first output terminal connected to the first switch of each of the cells and through which a first output signal is output based on the electrical signal that has been output from the first switch, and a second output terminal connected to the second switch of each of the cells and through which a second output signal is output based on the electrical signal that has been output from the second switch.
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