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公开(公告)号：US20210302550A1
公开(公告)日：2021-09-30
申请号：US16834347
申请日：2020-03-30
发明人： Neale Dutton , John Kevin Moore
IPC分类号： G01S7/4865 , G01S17/89 , G01S17/10
摘要： In an embodiment, a method includes: receiving a first plurality of digital codes from a TDC; generating a coarse histogram from the first plurality of digital codes; detecting a peak coarse bin from the plurality of coarse bins; after receiving the first plurality of digital codes, receiving a second plurality of digital codes from the TDC; and generating a fine histogram from the second plurality of digital codes based on the detected peak coarse bin, where a fine histogram depth range is narrower than a coarse histogram depth range, where a lower fine histogram depth is lower or equal to a lower coarse peak depth, and where a higher fine histogram depth is higher or equal to a higher coarse peak depth.
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公开(公告)号：US10976709B1
公开(公告)日：2021-04-13
申请号：US16834286
申请日：2020-03-30
发明人： John Kevin Moore , Neale Dutton
IPC分类号： H03M1/50 , G04F10/00 , G01S17/894 , H03K23/00 , G01T1/24 , G01S7/4865
摘要： In an embodiment, a method includes: providing a gray-coded time reference to a time-to-digital converter (TDC); receiving an event from an event signal; latching the gray-coded time reference into a memory upon reception of the event signal; and updating a time-of-flight (ToF) histogram based on the latched gray-coded time reference.
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33.发明申请公开(公告)号：US20190013873A1
公开(公告)日：2019-01-10
申请号：US16108257
申请日：2018-08-22
发明人： Neale Dutton , Denise Lee , Graeme Storm
IPC分类号： H04B10/516 , H04B10/61 , H04B10/58 , H04B10/114 , H04B10/50 , H04B10/66
CPC分类号： H04B10/5161 , H04B10/114 , H04B10/502 , H04B10/503 , H04B10/58 , H04B10/61 , H04B10/66
摘要： An embodiment device includes an optical source configured to generate an optical carrier including an optical pulse train; and a modulator configured to modulate an amplitude of the optical pulse train, based on data generated by a data source, to produce a modulated optical signal.
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公开(公告)号：US10120066B2
公开(公告)日：2018-11-06
申请号：US15169049
申请日：2016-05-31
发明人： Xiaoyong Yang , Neale Dutton , Kevin Channon
IPC分类号： G06K9/00 , G01S7/481 , G01S17/10 , G01S17/89 , G06T7/00 , H04N5/225 , H04N5/232 , G01S17/02 , G01S17/46 , G01S7/483 , H04N13/02
摘要： An apparatus includes a camera module configured to generate at least one image and a ToF SPAD based range detecting module configured to generate at least one distance determination to an object within a field of view of the camera module. A processor receives the at least one image from the camera module output and receives the at least one distance determination from the ToF SPAD based range detecting module. This data is processed by the processor to determine a depth map.
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公开(公告)号：US10079643B2
公开(公告)日：2018-09-18
申请号：US15360220
申请日：2016-11-23
发明人： Neale Dutton , Denise Lee , Graeme Storm
IPC分类号： H04B10/00 , H04B10/516 , H04B10/58 , H04B10/50 , H04B10/61
CPC分类号： H04B10/5161 , H04B10/114 , H04B10/502 , H04B10/503 , H04B10/58 , H04B10/61 , H04B10/66
摘要： An embodiment device includes an optical source configured to generate an optical carrier including an optical pulse train; and a modulator configured to modulate an amplitude of the optical pulse train, based on data generated by a data source, to produce a modulated optical signal.
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公开(公告)号：US20170184704A1
公开(公告)日：2017-06-29
申请号：US15169049
申请日：2016-05-31
发明人： Xiaoyong Yang , Neale Dutton , Kevin Channon
CPC分类号： G01S7/4816 , G01S7/483 , G01S17/023 , G01S17/10 , G01S17/46 , G01S17/89 , G06T7/0075 , G06T7/593 , H04N5/2257 , H04N5/23241 , H04N13/025 , H04N13/0253 , H04N13/0271 , H04N13/239 , H04N13/25 , H04N13/254 , H04N13/271 , H04N2013/0081 , H04N2013/0092
摘要： An apparatus includes a camera module configured to generate at least one image and a ToF SPAD based range detecting module configured to generate at least one distance determination to an object within a field of view of the camera module. A processor receives the at least one image from the camera module output and receives the at least one distance determination from the ToF SPAD based range detecting module. This data is processed by the processor to determine a depth map.
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37.发明授权公开(公告)号：US09171985B2
公开(公告)日：2015-10-27
申请号：US14066771
申请日：2013-10-30
申请人： STMicroelectronics (Research & Development) Limited , The University Court of the University of Edinburgh
发明人： Neale Dutton , Robert K. Henderson
IPC分类号： H01L31/107 , H01L27/146 , G01S17/10 , G01S17/89 , G01S7/486 , G01J1/44 , H04N5/3745
CPC分类号： H01L31/107 , G01J2001/442 , G01S7/4863 , G01S7/4865 , G01S17/10 , G01S17/89 , H01L27/14601 , H04N5/37452
摘要： A pixel circuit includes a single photon avalanche diode (SPAD) and a measurement circuit including a capacitance. The SPAD detects an incident photon and the measurement circuit discharges the capacitance at a known rate during a discharge time period. The length of the discharge time period is determined by the time of detection of the photon, such that the final amount of charge on the capacitance corresponds to the time of flight of the photon. The pixel circuit may be included in a time resolved imaging apparatus. A method of measuring the time of flight of a photon includes responding to an incident photon detection by discharging a capacitance at a known rate and correlating final capacitance charge to time of flight.
摘要翻译： 像素电路包括单光子雪崩二极管（SPAD）和包括电容的测量电路。 SPAD检测入射光子，并且测量电路在放电时间段内以已知的速率放电电容。 放电时间的长度由光子的检测时间确定，使得电容上的最终电荷量对应于光子的飞行时间。 像素电路可以包括在时间分辨成像装置中。 测量光子飞行时间的方法包括通过以已知速率放电电容来响应入射光子检测，并将最终电容电荷与飞行时间相关联。
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公开(公告)号：US20140070867A1
公开(公告)日：2014-03-13
申请号：US14018981
申请日：2013-09-05
发明人： Neale Dutton
IPC分类号： G06G7/12
CPC分类号： G06G7/12 , H03K5/1534
摘要： Signals generated by an array of photodiodes are applied to the inputs of corresponding edge detection circuits. Each edge detection circuit generates an output that changes state in response to a detected edge of the photodiode generated signal. The edge detection circuits may be formed by toggle flip-flop circuits. The outputs of the edge detection circuits are logically combined using exclusive OR logic to generate an output. The exclusive OR logic may be formed by a cascaded tree of exclusive OR circuits.
摘要翻译： 由光电二极管阵列产生的信号被施加到相应的边缘检测电路的输入。 每个边缘检测电路产生响应于所检测到的光电二极管产生信号的边缘而改变状态的输出。 边缘检测电路可以由切换触发器电路形成。 边缘检测电路的输出使用异或逻辑逻辑组合以产生输出。 异或逻辑可以由异或电路的级联树形成。
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公开(公告)号：US11977186B2
公开(公告)日：2024-05-07
申请号：US17341084
申请日：2021-06-07
发明人： Kasper Buckbee , Neale Dutton
IPC分类号： G01S7/4865 , G01C3/00 , G01C3/06 , G01C3/08 , G01S7/4863 , G01S7/4914 , G01S7/4915 , G01S17/10 , G01S17/14 , G01S17/36 , G01S17/894 , G06T7/521 , G06T7/70 , H03M1/34
CPC分类号： G01S7/4865 , G01S7/4863 , H03M1/34 , G01C3/00 , G01C3/06 , G01C3/08 , G01S7/4914 , G01S7/4915 , G01S17/10 , G01S17/14 , G01S17/36 , G01S17/894 , G06T7/521 , G06T7/70
摘要： In an embodiment, a method includes: resetting respective count values of a plurality of analog counters to an initial count value, each analog counter of the plurality of analog counters corresponding to a histogram bin of a time-of-flight (ToF) histogram; after resetting the respective count values, receiving a plurality of digital addresses from a time-to-digital converter (TDC); during an integration period, for each received digital address, selecting one analog counter based on the received digital address, and changing the respective count value of the selected one analog counter towards a second count value by a discrete amount, where each analog counter has a final count value at an end of the integration period; and after the integration period, determining an associated final bin count of each histogram bin of the ToF histogram based on the final count value of the corresponding analog counter.
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公开(公告)号：US20240118397A1
公开(公告)日：2024-04-11
申请号：US18390534
申请日：2023-12-20
发明人： Neale Dutton , John Kevin Moore
IPC分类号： G01S7/4865 , G01S17/10 , G01S17/89
CPC分类号： G01S7/4865 , G01S17/10 , G01S17/89
摘要： In an embodiment, a method includes: receiving a first plurality of digital codes from a TDC; generating a coarse histogram from the first plurality of digital codes; detecting a peak coarse bin from the plurality of coarse bins; after receiving the first plurality of digital codes, receiving a second plurality of digital codes from the TDC; and generating a fine histogram from the second plurality of digital codes based on the detected peak coarse bin, where a fine histogram depth range is narrower than a coarse histogram depth range, where a lower fine histogram depth is lower or equal to a lower coarse peak depth, and where a higher fine histogram depth is higher or equal to a higher coarse peak depth.
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