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公开(公告)号：US11467285B2
公开(公告)日：2022-10-11
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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公开(公告)号：US10984221B2
公开(公告)日：2021-04-20
申请号：US16494742
申请日：2018-03-12
Inventor： Shigeru Saitou , Shinzo Koyama , Masato Takemoto , Motonori Ishii
Abstract: An image recognition device includes: a luminance image generator and a distance image generator that generate a luminance image and a distance image, respectively, based on an image signal of an imaging target object output from a photoreceptor element; a target object recognition processor that extracts a target-object candidate from the luminance image using a machine learning database; and a three-dimensional object determination processor that uses the distance image to determine whether the extracted target-object candidate is a three-dimensional object. If it is determined that the target-object candidate is not a three-dimensional object, the target-object candidate extracted from the luminance image is prevented from being used, in the machine learning database, as image data for extracting a feature value of a target object.
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公开(公告)号：US20210011167A1
公开(公告)日：2021-01-14
申请号：US17029601
申请日：2020-09-23
Inventor： Motonori Ishii , Masato Takemoto , Shigeru Saitou , Shinzo Koyama
IPC: G01S17/89 , H04N5/353 , H04N5/3745 , G01S7/4865
Abstract: Each of column signal lines is connected to two or more of P pixels belonging to one of Q pixel columns of pixels. In each of the pixels, a first switch switches connection and disconnection between a light receiver and a first charge storage. A second switch switches connection and disconnection between the first charge storage and a second charge storage. A third switch switches connection and disconnection between the first charge storage and one of column signal lines corresponding to the pixel. The fourth switch switches the connection and disconnection between the second charge storage and the one of the column signal lines corresponding to the pixel.
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公开(公告)号：US20210005650A1
公开(公告)日：2021-01-07
申请号：US17025620
申请日：2020-09-18
Inventor： Tokuhiko TAMAKI , Hirohisa Ohtsuki , Ryohei Miyagawa , Motonori Ishii
IPC: H01L27/146 , H04N5/3745
Abstract: A solid-state imaging device includes: pixels arranged in a matrix; a vertical signal line provided for each column, conveying a pixel signal; a power line provided for each column, proving a power supply voltage; and a feedback signal line provided for each column, conveying a signal from a peripheral circuit to a pixel, in which each of the pixels includes: an N-type diffusion layer; a photoelectric conversion element above the N-type diffusion layer; and a charge accumulation node between the N-type diffusion layer and the photoelectric conversion element, accumulating signal charge generated in the photoelectric conversion element, the feedback signal line, a metal line which is a part of the charge accumulation node, the vertical signal line, and the power line are disposed in a second interconnect layer, and the vertical signal line and the power line are disposed between the feedback signal line and the metal line.
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公开(公告)号：US11860033B2
公开(公告)日：2024-01-02
申请号：US18111131
申请日：2023-02-17
Inventor： Akito Inoue , Mitsuyoshi Mori , Yusuke Sakata , Motonori Ishii
IPC: H01L31/107 , G01J1/44 , H03K17/687
CPC classification number: G01J1/44 , H03K17/6872 , G01J2001/4466
Abstract: A photodetector includes: at least one avalanche photodiode including a first semiconductor layer of a first conductivity type and a second semiconductor layer of a second conductivity type; a first transistor connected to the first semiconductor layer and including a channel of the second conductivity type that has polarity opposite to polarity of the first conductivity type; and a second transistor connected to the first semiconductor layer and including a channel of the first conductivity type.
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Patent Agency Ranking
公开(公告)号：US11722798B2
公开(公告)日：2023-08-08
申请号：US17111219
申请日：2020-12-03
Inventor： Motonori Ishii , Yoshiyuki Matsunaga , Yutaka Hirose
IPC: H04N25/65 , H04N25/75 , H04N25/77 , H04N25/767
CPC classification number: H04N25/65 , H04N25/75 , H04N25/767 , H04N25/77
Abstract: An imaging device including: a photoelectric converter that generates signal charge; a charge storage region that stores the signal charge; a first transistor that has a gate coupled to the charge storage region and reads out the signal charge; a second transistor that, has a source and a drain, an output of the first transistor being fed back to one of the source and the drain and being supplied to the charge storage region from the other of the source and the drain; and voltage supply circuitry that supplies voltages varying with time. In a reset operation for discharging the signal charge stored in the charge storage region, the voltage supply circuitry supplies the voltages to a gate of the second transistor so that the second transistor gradually changes from an OFF state to an ON state.
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公开(公告)号：US11487008B2
公开(公告)日：2022-11-01
申请号：US16494960
申请日：2018-03-12
Inventor： Shinzo Koyama , Masato Takemoto , Motonori Ishii , Yusuke Fukushima , Susumu Fukushima
IPC: G01S17/08 , G01S7/481 , G01S7/486 , G01S7/4865 , G01S7/497
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：US11169270B2
公开(公告)日：2021-11-09
申请号：US16496367
申请日：2018-03-19
Inventor： Motonori Ishii , Shinzo Koyama , Masato Takemoto , Shigeru Saitou
IPC: H04N5/378 , H04N5/3745 , G01S17/894 , H01L27/146
Abstract: A solid-state imaging device including a plurality of two-dimensionally arranged pixels is provided. The pixels each include a light receiving circuit that senses incident light having arrived at the light receiving element in a light exposure period, a counter circuit that counts the number of arrivals of the incident light based on the light reception signal from the light receiving circuit, a comparison circuit that outputs a comparison signal according to the count from the counter circuit, and a storage circuit that stores a time signal as a distance signal when the comparison signal from the comparison circuit is ON. Transistors included in the light receiving circuit, the counter circuit, the comparison circuit, and the storage circuit have the same conductivity type.
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公开(公告)号：US10989848B2
公开(公告)日：2021-04-27
申请号：US16010954
申请日：2018-06-18
Inventor： Shinzo Koyama , Motonori Ishii , Shigeru Saitou , Masato Takemoto , Tsuyoshi Tanaka
IPC: G02B5/28 , G02B5/26 , G01S7/481 , H04N7/18 , G01S17/89 , B32B17/00 , G02B5/20 , G01S17/931 , B60J1/20 , G01S7/487 , B32B17/10 , C03C17/00 , G01S17/08 , B60J1/00 , B60J1/02 , B60J1/18
Abstract: Heat-blocking filter is a heat-blocking filter to be installed in a window glass of a vehicle. The heat-blocking filter substantially transmits visible light and infrared light in a first wavelength range, and substantially blocks infrared light outside the first wavelength range.
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公开(公告)号：US10983212B2
公开(公告)日：2021-04-20
申请号：US16012860
申请日：2018-06-20
Inventor： Masato Takemoto , Shinzo Koyama , Motonori Ishii , Shigeru Saitou
IPC: G01S17/00 , G01S17/10 , G01S7/484 , G01S7/487 , G01S7/4865
Abstract: A distance measurement device includes: a pulse light emitter that emits pulse light to a measurement target; an optical sensor that receives reflected light which is the pulse light reflected by the measurement target; and a controller that controls a light emission timing of the pulse light emitted by the pulse light emitter, and determines a distance to the measurement target, from a light reception timing of the reflected light detected by the optical sensor. The controller sets the light emission timing in each of N periods (N being a natural number less than K) selected randomly from continuous K periods (K being a natural number greater than or equal to 2) to a timing that is delayed by a random first time from a start time of the period.
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