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公开(公告)号：US20180103225A1
公开(公告)日：2018-04-12
申请号：US15727611
申请日：2017-10-08
发明人： William GUICQUERO , Arnaud VERDANT
CPC分类号： H04N5/378 , H04N5/3745 , H04N5/3765
摘要： The invention relates to an electronic device for analyzing a scene, including a plurality of pixels (101) connected to a readout circuit (103) by a same first conductive track (105), wherein: each pixel (101) is capable of detecting an occurrence of a first event characteristic of the scene and of transmitting an event indication signal on the first conductive track (105) when it detects an occurrence of the first event; and the readout circuit (103) is capable of reading from the first conductive track (105) the event indication signals transmitted by the pixels (101) and of deducing therefrom characteristics of the scene, without transmitting event acknowledgement signals to the pixels (101).
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公开(公告)号：US20180124348A1
公开(公告)日：2018-05-03
申请号：US15675762
申请日：2017-08-13
发明人： Arnaud VERDANT , William GUICQUERO
摘要： An image sensor including: a plurality of pixels, each pixel being capable of supplying an output signal representative of a quantity of light energy received from a time of beginning of a pixel integration phase; and a control circuit configured to, during a phase of acquisition of an image, successively select each pixel a number n of times during a same pixel integration phase, without resetting the pixel between the first and the last selection of the pixel and, for each selection of a pixel, compare the output signal of the pixel with a quantization threshold and read a binary signal representative of the result of the comparison.
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公开(公告)号：US20180034471A1
公开(公告)日：2018-02-01
申请号：US15659170
申请日：2017-07-25
发明人： Arnaud VERDANT , William GUICQUERO
IPC分类号： H03M3/00
摘要： A sigma-delta converter including a sigma-delta modulator including at least one analog filter capable, for each cycle of a conversion phase, of receiving an internal analog signal originating from the analog input signal and of supplying an analog output signal, wherein: the contribution of the internal analog signal to the output value of the filter is smaller at a given cycle of the conversion phase than at a previous cycle, the contributions to the different cycles being governed by a first predetermined law which is a function of the rank of the cycle; and the duration of a given cycle of the conversion phase is shorter than the duration of a previous cycle, the durations of the different cycles being governed by a second predetermined law which is a function of the rank of the cycle in the conversion phase.
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公开(公告)号：US20200322561A1
公开(公告)日：2020-10-08
申请号：US16836563
申请日：2020-03-31
发明人： Arnaud VERDANT
IPC分类号： H04N5/378 , H04N5/355 , H04N5/3745
摘要： The present disclosure concerns a sensor for the acquisition of an optical signal modulated at an acoustic frequency, including a plurality of pixels, each including: a photodiode; an integration circuit configured to, at each period of the modulated optical signal, integrate a photocurrent delivered by the photodiode successively into K capacitors, K being an integer greater than or equal to 2; and a phase detection circuit configured to detect an order in the crossing of a predetermined voltage threshold by the K capacitors and to generate, according to the detected order, a signal representative of the phase of the modulated optical signal.
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公开(公告)号：US20190281203A1
公开(公告)日：2019-09-12
申请号：US16278157
申请日：2019-02-17
发明人： William GUICQUERO , Arnaud VERDANT
摘要： The invention concerns a method of performing intra-frame and inter-frame image processing comprising: alternating first and second image capture operations, the first image capture operation comprises capturing one or more first images (IA) based on a first set of image capture parameters (PA) and the second image capture operation comprises capturing one or more second images (IB) based on a second set of image capture parameters (PB), the values of the parameters of the first set being modified between each of the first image capture operations and the values of the parameters of the second set remaining constant between each of the second image capture operations or varying by less than a significant amount.
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