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公开(公告)号：US20230353906A1
公开(公告)日：2023-11-02
申请号：US18345805
申请日：2023-06-30
Inventor： Toru OKINO , Shinzo KOYAMA , Shigeru SAITOU , Masato TAKEMOTO , Masaki TAMARU , Hiroshi KOSHIDA , Shigetaka KASUGA , Yugo NOSE
IPC: H04N25/779 , H04N25/69
CPC classification number: H04N25/779 , H04N25/69
Abstract: Effective pixels and a failure detection pixel are connected to a control signal line for controlling an operation of the pixels and to an output signal line for outputting a result of failure detection in the pixels. Among the effective pixels, the effective pixels in a same row are connected in common to a same control signal line, and the effective pixels in a same column are connected in common to a same output signal line. The failure detection pixel is connected in common to at least one of the control signal line or the output signal line and configured to detect a failure in any of the effective pixels connected to the at least one of the control signal line or the output signal line.
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Patent Agency Ranking
公开(公告)号：US20220191424A1
公开(公告)日：2022-06-16
申请号：US17683465
申请日：2022-03-01
Inventor： Shota YAMADA , Motonori ISHII , Shigetaka KASUGA , Masato TAKEMOTO , Yutaka HIROSE
IPC: H04N5/3745 , H04N5/357
Abstract: An imaging device includes: a solid-state imaging element having a plurality of pixel cells arranged in a matrix; and a signal processing part configured to process a detection signal outputted from each of the pixel cells. The pixel cells each include an avalanche photodiode and output a voltage corresponding to a count number of photons received by the avalanche photodiode as the detection signal. The signal processing part includes a variation calculation part configured to calculate a variation between the pixel cells in the detection signal outputted from each of the pixel cells, and a correction calculation part configured to correct the detection signal outputted from each of the pixel cells, on the basis of the variation calculated by the variation calculation part.
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公开(公告)号：US20220003876A1
公开(公告)日：2022-01-06
申请号：US17480475
申请日：2021-09-21
Inventor： Shigetaka KASUGA , Shinzo KOYAMA , Masaki TAMARU , Hiroshi KOSHIDA , Yugo NOSE , Masato TAKEMOTO
IPC: G01S17/894 , G01S17/10 , G01S7/4865 , H01L31/107
Abstract: A distance-image obtaining method includes: (A) setting a plurality of distance-divided segments in a depth direction, and (B) obtaining a distance image based on each of the plurality of distance-divided segments set. The obtaining of the distance image includes: obtaining a plurality of distance images by imaging two or more of the plurality of distance-divided segments, to obtain a first distance image group; and obtaining a plurality of distance images by imaging distance-divided segments, among the plurality of distance-divided segments, in a phase different from a phase of the two or more of the plurality of distance-divided segments, to obtain a second distance image group.
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公开(公告)号：US20200271783A1
公开(公告)日：2020-08-27
申请号：US16494960
申请日：2018-03-12
Inventor： Shinzo KOYAMA , Masato TAKEMOTO , Motonori ISHII , Yusuke FUKUSHIMA , Susumu FUKUSHIMA
Abstract: A distance measuring device includes a light emitter; a light receiver; a protection cover that is located on an optical path between the light emitter and the light receiver; a mode switch that switches between a first mode and a second mode; a distance calculator that calculates a distance from a target object based on a difference between a time when light is emitted from the light emitter and a time when reflected light is received by the light receiver in the first mode; and an LD light emission intensity adjuster that adjusts a light emission intensity of the light emitter. The adjustment is performed such that a light emission intensity of the light emitter in the second mode is lower than a light emission intensity of the light emitter in the first mode.
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公开(公告)号：US20200025932A1
公开(公告)日：2020-01-23
申请号：US16497754
申请日：2018-03-12
Inventor： Shigeru SAITOU , Shinzo KOYAMA , Masato TAKEMOTO , Motonori ISHII
Abstract: An image recognition device includes a light source that emits lighting pulses to a measurement space, a image generator that generates a distance image based on reflected light acquired by a light receiving element, a reflectivity calculator that calculates a correction coefficient corresponding to a reflectivity for each measurement section, and a lighting pulse controller that controls a number of lighting pulses emitted from the light source according to the correction coefficient for each measurement section.
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16.发明申请公开(公告)号：US20180246214A1
公开(公告)日：2018-08-30
申请号：US15968918
申请日：2018-05-02
Inventor： Motonori ISHII , Shinzo KOYAMA , Masato TAKEMOTO , Shigeru SAITOU
CPC classification number: G01S17/89 , G01S7/481 , G01S7/4861 , G01S7/4863 , G01S7/487 , G01S17/10 , H04N5/332 , H04N5/3575 , H04N5/37452 , H04N5/37457 , H04N9/04553
Abstract: A plurality of pixels in a solid-state imaging device each include: a light receiving circuit that includes a light receiving element performing photoelectric conversion, sets, by an exposure signal, a photoelectric time for performing the photoelectric conversion, and outputs a light reception signal depending on whether or not incident light has reached the pixel within the photoelectric time; a counter circuit that counts, as a count value, the number of times the incident light has reached the pixel, based on the light reception signal; a comparison circuit that sets a value corresponding to the count value as a threshold, and sets a comparison signal to an on state in the case where the count value is greater than the threshold; and a storage circuit that stores, as a distance signal, a time signal when the comparison signal is in the on state.
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