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公开(公告)号：US20230007175A1
公开(公告)日：2023-01-05
申请号：US17941000
申请日：2022-09-08
Applicant: Samsung Electronics Co., Ltd.
Inventor： Ilia OVSIANNIKOV , Yibing Michelle WANG , Gregory WALIGORSKI , Qiang ZHANG
Abstract: Two-dimensional (2D) color information and 3D-depth information are concurrently obtained from a 2D pixel array. The 2D pixel array is arranged in a first group of a plurality of rows. A second group of rows of the array are operable to generate 2D-color information and pixels of a third group of the array are operable to generate 3D-depth information. The first group of rows comprises a first number of rows, the second group of rows comprises a second number of rows that is equal to or less than the first number of rows, and the third group of rows comprises a third number of rows that is equal to or less than the second number of rows. In an alternating manner, 2D-color information is received from a row selected from the second group of rows and 3D-depth information is received from a row selected from the third group of rows.
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公开(公告)号：US20220308189A1
公开(公告)日：2022-09-29
申请号：US17393394
申请日：2021-08-03
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle WANG , Chunji Wang , Kwang Oh KIM , Hongyu WANG
IPC: G01S7/4865 , G04F10/00 , G01S17/10 , G01S7/4914
Abstract: A direct time-of-flight (DTOF) LiDAR system includes a sensor array, a first gated time-to digital converter (TDC) circuit and second TDC circuit. The sensor array includes pixels arranged to detect a first disparity location on the sensor array of a reflection signal received from a first object at a first range with respect to a second disparity location on the sensor array of a reflection signal received from a second object at a second range that is greater than the first range. The first TDC circuit generates first timestamp information relating to detection of the first reflection signal in which the first gated TDC circuit is gated based on the first disparity location. The second gated TDC circuit generates second timestamp information relating to detection of the second reflection signal in which the second gated TDC circuit is gated based on the second disparity location.
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公开(公告)号：US20220260715A1
公开(公告)日：2022-08-18
申请号：US17735108
申请日：2022-05-02
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle WANG
IPC: G01S17/10 , G01S7/4863 , G01S7/4865 , G01S17/894 , G01S17/89
Abstract: A time-resolving sensor includes a single-photon avalanche diode (SPAD), a logic circuit and differential time-to-charge converter (DTCC) circuit. The SPAD is responsive to a shutter signal to generate an output signal based on detecting an incident photon. The logic circuit generates first and second enable signals. The DTCC includes a capacitor device, first and second switching devices, and an output circuit. The first switching device is responsive to the first enable signal to transfer a charge on the capacitor device to the first floating diffusion. The second switching device is responsive to the second enable signal to transfer a remaining charge on the capacitor device to the second floating diffusion. The output circuit outputs a first voltage that is based on the first charge on the first floating diffusion and a second voltage that is based on the second charge on the second floating diffusion.
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公开(公告)号：US20210392252A1
公开(公告)日：2021-12-16
申请号：US16945787
申请日：2020-07-31
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle WANG , Radwanul Hasan SIDDIQUE , Kwang Oh KIM
Abstract: A camera system includes two or more sensor arrays and an optical path. The sensor arrays are on the same sensor chip. Each sensor array includes the same field of view (FOV) as each other sensor array. The optical path includes a main lens and a metalens that are shared by each sensor array, and a microlens associated with each sensor array. The metalens splits incident light into different spectrums of light and directs each respective spectrum to a corresponding sensor array. The different spectrums of light include at least two of visible light, near infrared light, shortwave infrared and longwave infrared, and at least one sensor array includes single-photon avalanche diodes. The image processor that provides image processing, object recognition and object tracking and/or image fusion functionality may be on the same sensor chip as the sensor arrays.
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75.发明申请公开(公告)号：US20210326107A1
公开(公告)日：2021-10-21
申请号：US16903335
申请日：2020-06-16
Applicant: Samsung Electronics Co., Ltd.
Inventor： Lilong SHI , Chunji WANG , Yibing Michelle WANG , Kwang Oh KIM
Abstract: A system and a method are disclosed to approximately calculate a mathematical function using a digital processing device. An acceleration function is performed on at least one operand for a mathematical function. The acceleration function includes a predetermined sequence of addition operations that approximate the mathematical function in which the mathematical function may be a base-2 logarithm, a power of 2, a multiplication, an inverse square root, an inverse, a division, a square root, and an arctangent. The predetermined sequence of addition operations may include a first predetermined number of additions of integer-formatted operands and a second predetermined number of additions of floating-point-formatted operands in which the additions of integer-formatted operands and additions of floating-point-formatted operands can occur in any order.
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Patent Agency Ranking
公开(公告)号：US20210274107A1
公开(公告)日：2021-09-02
申请号：US16868527
申请日：2020-05-06
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：US20200370881A1
公开(公告)日：2020-11-26
申请号：US16988593
申请日：2020-08-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle WANG , Kwang Oh KIM
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：US20200349244A1
公开(公告)日：2020-11-05
申请号：US16520351
申请日：2019-07-23
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kwang Oh KIM , Yibing Michelle WANG , Kamil BOJANCZYK
Abstract: A computing device includes a system that authenticates a user of the computing device. A first sensor obtains a first representation of a physical characteristic of the user that is compared to a registered representation of the physical characteristic of the user. A first level of access to the computing device is enabled based on the first representation of the physical characteristic matching the second representation of the physical characteristic. A second sensor obtains a first representation of a liveness characteristic of the user that indicates that the user is alive. The first representation of the liveness characteristic is compared to a registered representation of the liveness characteristic of the user. A second level of access to the computing device is enabled based on the first representation of the liveness characteristic of the user matching the second representation of the liveness characteristic of the user.
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公开(公告)号：US20200232787A1
公开(公告)日：2020-07-23
申请号：US16838025
申请日：2020-04-01
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yibing Michelle WANG
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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80.发明申请公开(公告)号：US20200225353A1
公开(公告)日：2020-07-16
申请号：US16830254
申请日：2020-03-25
Applicant: Samsung Electronics Co., Ltd.
Inventor： Lilong SHI , Yibing Michelle WANG
IPC: G01S17/42 , G01S17/89 , G01S17/88 , G01S7/4865 , G01S17/10
Abstract: A method is disclosed to determine a traveling time for a plurality of received light pulses that reflected and returned from an object. Each returned light pulse is associated with a timestamp indicating a time between a transmission time of a corresponding light pulse and a time of arrival of the returned light pulse. For each timestamp, a number C is determined of time stamps that are subsequent to the timestamp and within a predetermined time window after the timestamp. A maximum number C is determined, and an index i is determined for the maximum number C. A traveling time is determined for the plurality of light pulses as an average of the timestamp having a same index as the maximum number C and timestamps that are within the predetermined time window after the timestamp having the same index as the maximum number C.
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