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公开(公告)号：EP3712648A3
公开(公告)日：2020-11-11
申请号：EP19214739.5
申请日：2019-12-10
发明人： Kubota, Hiroshi , Matsumoto, Nobu
IPC分类号： G01S7/4863 , H01L27/146 , G01S17/42 , G01S17/14
摘要： 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：EP3709054A1
公开(公告)日：2020-09-16
申请号：EP19195345.4
申请日：2019-09-04
发明人： Kubota, Hiroshi , Matsumoto, Nobu
IPC分类号： G01S7/4863 , G01S7/4865 , G01S17/18
摘要： According to one embodiment, a light detector (14) includes: a first set (CHU1) and a second set (CHU2) of light detection elements each being disposed in a first region (SeR) on a substrate; and a first (XFR1) and a second (XFR2) selection and integration circuit each being disposed in a second region (SwR) 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 (CU) 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 (CU) 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：EP3786660A1
公开(公告)日：2021-03-03
申请号：EP20191926.3
申请日：2020-08-20
发明人： Kubota, Hiroshi , Matsumoto, Nobu
摘要： A distance measuring device according to an embodiment 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：EP3770634A1
公开(公告)日：2021-01-27
申请号：EP20187666.1
申请日：2020-07-24
发明人： Kubota, Hiroshi , Matsumoto, Nobu
IPC分类号： G01S7/487 , G01S17/10 , G01S17/89 , G01S17/931
摘要： A distance measuring device according to an embodiment that processes a first time-series luminance signal generated on the basis of a sensor output corresponding to reflected light of laser light, includes a measurement signal generation circuit, and a measurement processing circuit. The measurement signal generation circuit generates a third time-series luminance signal obtained by subtracting, from the first time-series luminance signal, a second time-series luminance signal corresponding to reflected light from outside a measurement target object based on the laser lightl. The measurement processing circuit generates a distance value to the measurement target object on the basis of the third time-series luminance signal.
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公开(公告)号：EP3712644A1
公开(公告)日：2020-09-23
申请号：EP19195604.4
申请日：2019-09-05
发明人： Kubota, Hiroshi , Matsumoto, Nobu
IPC分类号： G01S7/481 , G01S7/4863 , G01S17/10 , G01S17/42 , G01S17/894
摘要： A light receiving device (1) includes a light receiver (10) including pixels (12) and a light receiving area (16). The pixels (12) are arranged in an array in a first direction and in a second direction intersecting with the first direction and each of the pixels (12) has one light receiving element (14) or more. The light receiving area (16) has continuous pixels out of the pixels (12), outputs signals based on intensities of light received in the continuous pixels, and is changed in position in the light receiver (10) according to a signal indicating a position in the first direction and a position in the second direction.
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公开(公告)号：EP3457177A1
公开(公告)日：2019-03-20
申请号：EP18159702.2
申请日：2018-03-02
摘要： According to one embodiment, a distance measurement apparatus (1) includes a light emitter (100) that intermittently emits a light beam, and a meter (300) that measures a distance to an object (10) from a length of time from an emission of the light beam from the light emitter (100) to a return of reflected light by the object (10). The light emitter (100) emits the light beam in a certain cycle with delay corresponding to a randomly set offset time. The meter (300) generates an integrated detection signal by shifting a plurality of detection signals of the light beam emitted in the certain cycle by the respective offset times and time-divisionally integrating the detection signals, and determines based on the integrated detection signal whether or not the light indicated by the detection signals is reflected light by the object (10), emitted from the light emitter (100).
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公开(公告)号：EP3964861A1
公开(公告)日：2022-03-09
申请号：EP21161442.5
申请日：2021-03-09
发明人： Kubota, Hiroshi , Matsumoto, Nobu
IPC分类号： G01S7/4863 , G01S7/481 , G01S7/487 , G01S7/4914 , G01S7/493 , G01S7/497 , G01S17/42
摘要： 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：EP3796035A1
公开(公告)日：2021-03-24
申请号：EP20183174.0
申请日：2020-06-30
发明人： Kubota, Hiroshi , Matsumoto, Nobu
IPC分类号： G01S7/4863 , G01S7/481
摘要： A photodetector (14) includes a plurality of channels (21) each having a plurality of SPAD units (32), each SPAD unit having an avalanche photodiode (42). The photodetector (14) is capable of selecting outputting or non-outputting of the channels (21). The SPAD unit (32) includes: an active quenching circuit (43, 44) which performs active quenching of the avalanche photodiode (42); and a control circuit(11) which brings the active quenching circuit (43, 44) which corresponds to the channel where non-outputting is selected into an operable state.
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公开(公告)号：EP3709053A1
公开(公告)日：2020-09-16
申请号：EP19195114.4
申请日：2019-09-03
发明人： Kubota, Hiroshi , Matsumoto, Nobu
IPC分类号： G01S7/4863
摘要： According to one embodiment, a sensor includes a first avalanche photodiode, a first quenching element, a second avalanche photodiode, and a second quenching element. The first quenching element is connected to a current output terminal of the first avalanche photodiode at one end and is connected to an output terminal at another end. The second avalanche photodiode is arranged adjacent to the first avalanche photodiode. The second quenching element is connected to a current output terminal of the second avalanche photodiode at one end and is connected to a specific electric potential at another end.
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公开(公告)号：EP3971608A1
公开(公告)日：2022-03-23
申请号：EP21161433.4
申请日：2021-03-09
发明人： Kubota, Hiroshi , Matsumoto, Nobu
IPC分类号： G01S7/481 , G01S7/4863 , G01S17/42 , G01S17/10 , G01S17/89 , G01S17/931
摘要： A distance measuring device according to one embodiment includes a light emitter, a first light receiver, a second light receiver, a measurement section, and a controller. The light emitter includes a light source and a mirror. The light source emits an optical signal. The mirror reflects the optical signal. The first light receiver includes a first sensor and a first optical system. The first sensor includes first pixels. The first optical system is configured to guide a reflected light of the optical signal emitted from the light emitter to the first sensor. The second light receiver includes a second sensor and a second optical system. The second sensor includes second pixels. The second optical system is configured to guide the reflected light to the second sensor.
The measurement section is configured to calculate a first distance value and a second distance value, wherein the first distance value is calculated using a first time and a second time, and the second distance value is calculated using the first time and a third time, and wherein the first time is a time at which the light source emits the optical signal, the second time is a time at which the first sensor detects the reflected light, and the third time is a time at which the second sensor detects the reflected light.
The controller is configured to cause the light source to emit the optical signal intermittently and to control the mirror to perform scanning using the optical signal. The controller is further configured to set a first light-receiving area in which at least one first pixel among the first pixels is selectively turned on in the first sensor, and to set a second light-receiving area in which at least one second pixel among the second pixels is selectively turned on in the second sensor. The controller is further configured to determine a position of the first light-receiving area and a position of the second light-receiving area according to a state of the mirror when the optical signal is emitted.
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