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公开(公告)号：US10557703B2
公开(公告)日：2020-02-11
申请号：US15599110
申请日：2017-05-18
发明人： Chris Yates
摘要： A distance measuring device and a method for determining a distance are provided. The method includes: illuminating an object with a sequence of the light pulses, capturing one arriving light pulse corresponding to an intensity Ie,l within a first integration gate, and outputting a signal value U1, capturing another arriving light pulse corresponding to the intensity Ie,l within a second integration gate, and outputting a signal value U2, capturing one arriving light pulse corresponding to an intensity Ie,h within the first integration gate and outputting a signal value U3, capturing the other arriving light pulse corresponding to the intensity Ie,h within the second integration gate and outputting a signal value U4, and calculating the distance between the distance measuring device and the object based on U1, U2, U3, and U4.
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公开(公告)号：US10852436B2
公开(公告)日：2020-12-01
申请号：US15350022
申请日：2016-11-12
发明人： Chris Yates , Chris Softley
摘要： An imaging system is provided for monitoring a field of view with a two-dimensional array of photo elements on which the field of view is imaged. The imaging system determines for each photo element a distance between the photo element and a surface of an object in the field of view by light emitted into the field of view and subsequently arriving on the photo elements and to determine a distance vector to form a coordinate image that includes the distance vector. A first memory unit stores the coordinate image, a second memory unit stores logical relations for the photo elements. A processing unit determines for each of the photo elements whether a logical relation is fulfilled and outputs a trigger signal when at least one of the logical relations is fulfilled.
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公开(公告)号：US10823827B2
公开(公告)日：2020-11-03
申请号：US15990627
申请日：2018-05-26
发明人： Chris Yates , Chris Softley , Igor Abrosimov
IPC分类号： G01C3/08 , G01S7/4865 , G01S17/89 , G01S7/4863 , H04N5/3745 , G01S17/10
摘要： Imaging system includes pixel groups and a trigger generator to generate reset signals and a transfer signal. Each pixel group includes pixels and a programmable memory element to store a first or a second value. Each pixel includes a pixel circuit with a photodiode and a storage capacitance. The pixel circuit, the trigger generator, and the memory element are interconnected to permit the photodiode to be held at a constant voltage when the trigger generator sends the reset signal to the pixel circuit. When the reset signal is switched off, the photodiode accumulates a charge while being irradiated. When the transfer signal is received, the charge is transferred to the storage capacitance. The memory element blocks the transfer signal from arriving on all the pixel circuits when it has stored the first value and passes the transfer signal to all the pixel circuits when it has stored the second value.
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