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公开(公告)号：US20200041258A1
公开(公告)日：2020-02-06
申请号：US16595461
申请日：2019-10-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle WANG
Abstract: An imaging unit includes a light source and a pixel array. The light source projects a line of light that is scanned in a first direction across a field of view of the light source. The line of light oriented in a second direction that is substantially perpendicular to the first direction. The pixel array is arranged in at least one row of pixels that extends in a direction that is substantially parallel to the second direction. At least one pixel in a row is capable of generating two-dimensional color information of an object in the field of view based on a first light reflected from the object and is capable of generating three-dimensional (3D) depth information of the object based on the line of light reflecting from the object. The 3D-depth information includes time-of-flight information.
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公开(公告)号：US20190101379A1
公开(公告)日：2019-04-04
申请号：US16191415
申请日：2018-11-14
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle WANG
IPC: G01B11/22
CPC classification number: G01B11/22 , G01B11/2518 , G03B15/02 , G03B17/54 , G06T7/521 , G06T2207/10028 , H04N5/2256 , H04N5/23245 , H04N13/271 , H04N2213/003
Abstract: Using the same image sensor to capture both a two-dimensional (2D) image of a three-dimensional (3D) object and 3D depth measurements for the object. A laser point-scans the surface of the object with light spots, which are detected by a pixel array in the image sensor to generate the 3D depth profile of the object using triangulation. Each row of pixels in the pixel array forms an epipolar line of the corresponding laser scan line. Timestamping provides a correspondence between the pixel location of a captured light spot and the respective scan angle of the laser to remove any ambiguity in triangulation. An Analog-to-Digital Converter (ADC) in the image sensor generates a multi-bit output in the 2D mode and a binary output in the 3D mode to generate timestamps. Strong ambient light is rejected by switching the image sensor to a 3D logarithmic mode from a 3D linear mode.
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公开(公告)号：US20180191936A1
公开(公告)日：2018-07-05
申请号：US15911153
申请日：2018-03-04
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle WANG , Ilia OVSIANNIKOV , Yong-Hwa PARK
CPC classification number: H04N5/2353 , G03B7/00 , G03B9/08 , G03B15/05 , H04N5/23241
Abstract: An imaging device includes at least a first group of pixels. A driver block is configured to generate at least two shutter signals, each having on-phases periodically alternating with off-phases. The shutter signals might not be in phase. The imaging device may have an optical shutter that is partitioned in two or more parts, or a set of two or more optical shutters. The shutter parts, or the shutters, may receive the shutter signals, and accordingly open and close. A design of the driver block requires reduced power, which is highly desirable for mobile applications. Moreover, 3D imaging may be implemented that uses various time-of-flight configurations.
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44.发明申请公开(公告)号：US20170353707A1
公开(公告)日：2017-12-07
申请号：US15225816
申请日：2016-08-01
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle WANG , Ilia OVSIANNIKOV , Gregory WALIGORSKI
CPC classification number: H04N13/128 , G01C3/08 , G01S7/4817 , G01S7/4863 , G01S7/4865 , G01S7/497 , G01S17/10 , G01S17/42 , G01S17/48 , G01S17/89 , H04N5/2253 , H04N5/2254 , H04N5/3765 , H04N2013/0081
Abstract: A method and a system are disclosed that use a double-readout technique to generate timestamps and grayscale values for pixel-specific outputs of a pixel row in a pixel array in which the pixel array forms an image plane and the row of pixels forms an epipolar line of a scanning line on the image plane. For a pixel-specific output that exceeds a threshold, a timestamp value and a grayscale value are generated and associated with the pixel-specific output. If a pixel-specific output does not exceed the threshold and no timestamp is generated (i.e., a missing timestamp), a grayscale value for the pixel-specific output is generated and associated with the pixel-specific output. Timestamps errors may be corrected that may be caused by missing timestamps, timestamps that are associated with pixel clusters and outlier timestamps, i.e., pixel-specific outputs that are not consistent with a monotonic relationship of timestamp values under normal conditions.
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公开(公告)号：US20240322051A1
公开(公告)日：2024-09-26
申请号：US18477480
申请日：2023-09-28
Applicant: Samsung Electronics Co., Ltd.
Inventor： Tze Ching FUNG , Yibing Michelle WANG , Hongyu WANG , Eunchul KANG
IPC: H01L31/02 , H01L27/146 , H01L31/107
CPC classification number: H01L31/02027 , H01L27/14612 , H01L27/14636 , H01L27/14643 , H01L31/107
Abstract: An output circuit for a single-photon avalanche diode. In some embodiments, a system includes: a first sensing element; a bus line; a first pull-down circuit; a first pull-up element; and a second pull-up element, the first pull-up element, the second pull-up element, and the first pull-down circuit being connected to the bus line, the first pull-down circuit being connected to the first sensing element and configured to be activated based on a signal from the first sensing element, the first pull-up element having a lower drive strength than the first pull-down circuit.
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Patent Agency Ranking
公开(公告)号：US20240153983A1
公开(公告)日：2024-05-09
申请号：US18096012
申请日：2023-01-11
Applicant: Samsung Electronics Co., Ltd.
Inventor： Tze Ching FUNG , Yibing Michelle WANG
IPC: H01L27/146
CPC classification number: H01L27/14643 , H01L27/14612 , H01L27/1463 , H01L27/14636
Abstract: A pixel cell for a CMOS image sensor includes an isolation structure that isolates a pixel transistor region from a pixel photodiode region. On a front side of the image sensor, the isolation structure includes a first shallow trench isolation (STI) structure, a second STI structure and a semiconductor region between the first STI structure and the second STI structure, and an implant region formed from a p-type semiconductor that is in contact with the semiconductor region and extends toward a backside of the image sensor. The semiconductor region is formed from the first type semiconductor. On a backside of the image sensor, the isolation structure includes a trench isolation structure extending from the backside toward the front side and that contacts the implant region.
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公开(公告)号：US20230016984A1
公开(公告)日：2023-01-19
申请号：US17950083
申请日：2022-09-21
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle WANG , Kwang Oh KIM , Radwanul Hasan SIDDIQUE
IPC: H04N5/33 , H01L27/146
Abstract: A pixel for an image sensor includes a microbolometer sensor portion, a visible image sensor portion and an output path. The microbolometer sensor portion outputs a signal corresponding to an infrared (IR) image sensed by the microbolometer sensor portion. The visible image sensor portion outputs a signal corresponding to a visible image sensed by the visible image sensor portion. The output path is shared by the microbolometer and the visible image sensor portions, and is controlled to selectively output the signal corresponding to the IR image or the signal corresponding to the visible image. The output path may be further shared with a visible image sensor portion of an additional pixel, in which case the output path may be controlled to selectively to also output the signal corresponding to a visible image of the additional pixel.
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公开(公告)号：US20220321819A1
公开(公告)日：2022-10-06
申请号：US17847132
申请日：2022-06-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle WANG , Ilia OVSIANNIKOV
Abstract: Using the same image sensor to capture a two-dimensional (2D) image and three-dimensional (3D) depth measurements for a 3D object. A laser point-scans the surface of the object with light spots, which are detected by a pixel array in the image sensor to generate the 3D depth profile of the object using triangulation. Each row of pixels in the pixel array forms an epipolar line of the corresponding laser scan line. Timestamping provides a correspondence between the pixel location of a captured light spot and the respective scan angle of the laser to remove any ambiguity in triangulation. An Analog-to-Digital Converter (ADC) in the image sensor operates as a Time-to-Digital (TDC) converter to generate timestamps. A timestamp calibration circuit is provided on-board to record the propagation delay of each column of pixels in the pixel array and to provide necessary corrections to the timestamp values generated during 3D depth measurements.
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公开(公告)号：US20220292049A1
公开(公告)日：2022-09-15
申请号：US17751487
申请日：2022-05-23
Applicant: Samsung Electronics Co., Ltd.
Inventor： Ilia OVSIANNIKOV , Yibing Michelle WANG
IPC: G06F15/173 , G06N3/08 , G06F17/16 , G06F7/57 , G06F7/533 , G06F7/544 , G06F9/38 , G06F13/16 , G06F17/15
Abstract: A system for calculating. A scratch memory is connected to a plurality of configurable processing elements by a communication fabric including a plurality of configurable nodes. The scratch memory sends out a plurality of streams of data words. Each data word is either a configuration word used to set the configuration of a node or of a processing element, or a data word carrying an operand or a result of a calculation. Each processing element performs operations according to its current configuration and returns the results to the communication fabric, which conveys them back to the scratch memory.
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公开(公告)号：US20210389462A1
公开(公告)日：2021-12-16
申请号：US16940237
申请日：2020-07-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Chunji WANG , Yibing Michelle WANG
IPC: G01S17/89 , G06K9/46 , G01S17/10 , G01S17/42 , G01S7/4863 , G01S7/4865 , G01S7/481
Abstract: Provided is a depth detection system and method of histogram binning for depth detection. The depth detection system includes a light source configured to emit a light pulse toward an object, an optical sensor configured to detect the light pulse reflecting off the object, the optical sensor including a first sensing pixel configured to detect the light pulse for a first event count according to the light pulse reflecting off the object, and a second sensing pixel configured to detect the light pulse for a second event count according to the light pulse reflecting off the object, and a processing circuit configured to determine a first aggregated histogram corresponding to the first sensing pixel based on the first event count and the second event count and determine a first peak of the first aggregated histogram to determine a first time of flight associated with the first sensing pixel.
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