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1.发明公开公开(公告)号：US20240040283A1
公开(公告)日：2024-02-01
申请号：US17875244
申请日：2022-07-27
发明人： Andreas Suess , Shoushun Chen
IPC分类号： H04N5/3745 , H03F3/16 , H04N5/343 , H04N5/369
CPC分类号： H04N5/37452 , H03F3/16 , H04N5/343 , H04N5/3698 , H03K19/20
摘要： Low power event driven pixels and reset control circuits for the same are disclosed herein. In one embodiment, an event driven pixel comprises a photosensor; a photocurrent-to-voltage converter coupled to the photosensor; and a difference circuit coupled to the photocurrent-to-voltage converter. The difference circuit includes a source follower transistor and is configured to generate a signal at a gate of the source follower transistor that is based on a voltage output from the photocurrent-to-voltage converter. The difference circuit is further configured to output a difference signal in response to assertion of a row select signal. The event driven pixel can further include a reset control circuit coupled to the difference circuit and configured to initialize the difference circuit, and to reset the difference circuit when the difference signal output from the event driven pixel indicates a change in the voltage greater than a threshold amount.
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2.发明公开公开(公告)号：US20230283918A1
公开(公告)日：2023-09-07
申请号：US17854883
申请日：2022-06-30
发明人： Zhi Zhou , Guanjing Ren
IPC分类号： H04N5/347 , H04N5/369 , H04N5/378 , H04N5/376 , H04N5/3745 , H04N9/04 , H04N5/343 , G02B3/00 , H01L27/146
CPC分类号： H04N5/347 , H04N5/36961 , H04N5/378 , H04N5/376 , H04N5/37457 , H04N9/0455 , H04N9/0451 , H04N5/343 , G02B3/00 , H01L27/14627 , G02B2003/0093 , H01L27/14643 , H01L27/14641
摘要： An imaging system with an array of pixel cell units having four photodiodes sharing the same readout amplifier, row select transistor, microlens and filter color. Some pixel cell units provide a phase detection autofocus function. The imaging system provides the option of imaging with phase detection autofocus and with or without horizontal or vertical binning readout modes, or both simultaneously, to form an a full resolution image of the target scene with improved effective frame rate and improved slow motion imaging.
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公开(公告)号：US20230080715A1
公开(公告)日：2023-03-16
申请号：US17477255
申请日：2021-09-16
摘要： Systems and techniques are described for imaging. An imaging system includes an image sensor with a plurality of photodetectors, grouped into a first group of photodetectors and a second group of photodetectors. The imaging system can reset its image sensor. The imaging system exposes its image sensor to light from a scene. The plurality of photodetectors convert the light into charge. The imaging system stores analog photodetector signals corresponding to the charge from each the photodetectors. The imaging system reads first digital pixel data from a first subset of the analog photodetector signals corresponding to the first group of photodetectors without reading second digital pixel data from a second subset of the analog photodetector signals corresponding to the second group of photodetectors. The imaging system generates an image of the scene using the first digital pixel data.
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公开(公告)号：US11570386B2
公开(公告)日：2023-01-31
申请号：US17211268
申请日：2021-03-24
申请人： SK hynix Inc.
发明人： Jung Soon Shin , Nam Ryeol Kim , Yu Jin Park , Kang Bong Seo
IPC分类号： H04N5/355 , H04N5/374 , H04N5/343 , H01L27/146 , H04N5/3745
摘要： Disclosed is an image sensing device and an operating method thereof, and the image sensing device may include a first unit pixel circuit disposed in a first row, including a first floating diffusion node, and suitable for outputting a first pixel signal through a column line, a second unit pixel circuit disposed in a second row, including a second floating diffusion node, and suitable for outputting a second pixel signal through the column line, and a first coupling circuit suitable for selectively coupling the first floating diffusion node to the second floating diffusion node based on a first mode control signal.
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公开(公告)号：US11558551B2
公开(公告)日：2023-01-17
申请号：US17012005
申请日：2020-09-03
IPC分类号： G06T7/11 , G06T15/00 , G06T15/10 , G06T19/00 , H04N5/232 , H04N5/343 , G02B27/01 , H04N5/357 , H04N5/374 , G06K9/62
摘要： A system and method for a master platform includes receiving first pose data associated with an image sensor of a first device, and a first semantic map generated by the first device, the first semantic map including a simplified object representation in a coordinate space of the first device. The master platform also receives second pose data associated with an image sensor of a second device, and a second semantic map generated by the second device, the second semantic map including a simplified object representation in a coordinate space of the second device. A shared simplified object representation common to the first and semantic maps is identified. The master platform further combines the first semantic and second semantic maps based on the first and second pose data. The first pose data, first semantic map, second pose data, and second semantic map are associated with a common time interval.
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公开(公告)号：US11509840B2
公开(公告)日：2022-11-22
申请号：US17047564
申请日：2019-11-21
发明人： Hayato Wakabayashi
IPC分类号： H04N5/343 , G06V10/22 , H04N5/06 , H04N5/225 , H04N5/345 , H04N5/351 , H04N5/369 , H04N5/232 , H04N5/341
摘要： The present technology relates to a solid-state imaging device, a signal processing chip, and an electronic apparatus that make it possible to utilize the result of detecting an occurrence of an event in imaging. The solid-state imaging device includes: an event detection unit that detects, as an event, a change in an electrical signal generated by each pixel of a pixel array unit; a region-of-interest detection unit that detects, from a result of detecting the event, a region-of-interest of the pixel array unit; and a pixel signal generation unit that generates a pixel signal constituting an image of a region corresponding to the region-of-interest. The present technology is applicable to, for example, a sensor that detects an event that is a change in an electrical signal of a pixel.
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公开(公告)号：US11412168B2
公开(公告)日：2022-08-09
申请号：US16824130
申请日：2020-03-19
发明人： Kazuki Haraguchi
IPC分类号： H04N5/378 , H04N5/3745 , H04N5/376 , H04N5/343
摘要： An imaging element included in an imaging device includes a pixel array in which a plurality of unit pixels are arranged in a matrix, each of the unit pixels having a photoelectric conversion unit. The imaging element is able to read out multiple rows of pixel signals in parallel in a unit horizontal synchronous period. The multiple rows of pixel groups are classified into a first pixel group and a second pixel group by a plurality of rows control signals, and are periodically arranged in a vertical direction of the imaging element. The imaging element is able to acquire signals obtained by multiplying different gains by pixel signals of unit pixels of the first pixel group and pixel signals of unit pixels of the second pixel group through setting of a plurality of rows control signals.
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公开(公告)号：US20220210349A1
公开(公告)日：2022-06-30
申请号：US17471459
申请日：2021-09-10
发明人： Jong Woo BONG , Yun Jae SUH , Seung Nam CHOI , Jun Seok KIM
IPC分类号： H04N5/355 , H04N5/3745 , H04N5/369 , H04N5/343
摘要： A dynamic vision sensor may include a pixel array including at least a first photoreceptor and a second photoreceptor, the first photoreceptor and the second photoreceptor including at least one first pixel and at least one second pixel, respectively, the at least one first pixel and the at least one second pixel configured to generate at least one first photocurrent and at least one second photocurrent in response to an incident light, respectively, and the first photoreceptor and the second photoreceptor configured to a first and second log voltages based on the at least one first photocurrent and the at least one second photocurrent, respectively, processing circuitry configured to, amplify the first and second log voltages, detect a change in intensity of the light based on the amplified first log voltage, the amplified second log voltage, and a reference voltage, and output an event signal corresponding to the detected value.
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公开(公告)号：US11336842B2
公开(公告)日：2022-05-17
申请号：US17185845
申请日：2021-02-25
IPC分类号： H04N5/343 , H04N5/374 , H01L27/146
摘要： An imaging device includes a first pixel. The first pixel has a photoelectric converting portion, a first capacitance element, and a first transistor. The photoelectric converting portion converts incident light into signal charge. The first capacitance element includes a first terminal and a second terminal, the first terminal being electrically connected to the photoelectric converting portion in at least a period of exposure. The first transistor includes a first source and a first drain, one of the first source and the first drain is electrically connected to the second terminal, and a direct-current potential is applied to the other of the first source and the first drain.
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公开(公告)号：US20220103767A1
公开(公告)日：2022-03-31
申请号：US17403885
申请日：2021-08-17
发明人： Ping-Hung Yin , Jia-Shyang Wang
摘要： An image sensing device and an image sensing method are provided. The image sensing device includes a pixel array and a readout circuit. The pixel array includes multiple sensing sub-pixels arranged in an array. During a first exposure period of a frame period, the sensing sub-pixels are simultaneously exposed to respectively store multiple first sensing signals in multiple storage units of the sensing sub-pixels. During multiple first readout periods of the frame period, the readout circuit sequentially reads out the first sensing signals stored in the storage units during different periods. During each of multiple dynamic sensing periods of the frame period, all or part of the sensing sub-pixels are reset and then simultaneously exposed again, and the readout circuit then simultaneously reads out multiple second sensing signals of the sensing sub-pixels.
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