公开(公告)号：US20230221419A1

公开(公告)日：2023-07-13

申请号：US17865126

申请日：2022-07-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG ,  Chunji WANG

IPC: G01S7/4865 ,  G01S17/10

CPC classification number: G01S7/4865 ,  G01S17/10

Abstract: Disclosed is a single pass light detection and ranging (LiDAR) laser method, including building a coarse histogram, detecting a first peak of laser pulses in the coarse histogram, determining whether the first peak height is greater than a first threshold and a location of the first peak is less than or equal to a second threshold, when determining that the first peak height is greater than the first threshold and the location of the first peak is less than or equal to the second threshold, building a fine histogram, and detecting a peak of laser pulses in the fine histogram, and when determining that the first peak height is less than or equal to the first threshold and the location of the first peak is greater than the second threshold, continuing the building of the coarse histogram, and detecting a second peak of the laser pulses in the coarse histogram.

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.

公开(公告)号：US20220137226A1

公开(公告)日：2022-05-05

申请号：US17578232

申请日：2022-01-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kwang Oh KIM ,  Yibing Michelle WANG ,  Radwanul Hasan SIDDIQUE ,  Lilong SHI ,  Chunji WANG

IPC: G01S17/894 ,  G06T7/55 ,  G06T7/521 ,  H04N13/156 ,  H04N13/254 ,  H04N5/369 ,  G06T7/20 ,  G06V20/64

Abstract: Provided is a 3D depth sensing system and method of providing an image based on a hybrid sensing array. The 3D sensing system including a light source configured to emit light, a hybrid sensing array comprising a 2D sensing region configured to detect ambient light reflected from an object and a 3D depth sensing region configured to detect the light emitted by the light source and reflected from the object, a metalens on the hybrid sensing array, the metalens being configured to direct the ambient light reflected from the object towards the 2D sensing region, and to direct the light emitted by the light source and reflected from the object towards the 3D depth sensing region, and a processing circuit configured to combine 2D image information provided by the 2D sensing region and 3D information provided by the 3D depth sensing region to generate a combined 3D image.

公开(公告)号：US20200303437A1

公开(公告)日：2020-09-24

申请号：US16409767

申请日：2019-05-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG ,  Lilong SHI ,  Kwang Oh KIM ,  Chunji WANG

IPC: H01L27/146 ,  G01S17/10

Abstract: A pixel of an image sensor includes a pinned photodiode (PPD), a switching device and an output circuit. A first terminal of the switching device is coupled to the PPD. A second terminal of the switching device is coupled to a floating diffusion (FD). A third terminal of the switching device is coupled to a first enable signal and a second enable signal. The switching device is responsive to the first enable signal to transfer a first charge on the PPD to the FD, and responsive to the second enable signal to transfer a second charge on the PPD to the FD. The output circuit outputs a first voltage based on the first charge and outputs a second voltage based on the second charge in which the first voltage corresponds to a time of flight of one or more detected photons and the second voltage corresponds to a greyscale image.

公开(公告)号：US20230217128A1

公开(公告)日：2023-07-06

申请号：US18072689

申请日：2022-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG ,  Chunji WANG ,  Yanhai REN ,  Tze-Ching FUNG ,  Duhyun LEE

IPC: H04N25/713 ,  H04N25/53

CPC classification number: H04N25/713 ,  H04N25/53

Abstract: The present disclosure relates to a method and system for imaging a scene. The method includes generating a shutter pattern and applying the shutter pattern to a photodetector array. The system includes a sensor architecture in three dimensions, where elements of the sensor architecture are stacked in two or more layers. Some elements of the sensor architecture include a photodetector array, register array, a generator to generate shutter patterns, readout circuitry, and an ISP.

公开(公告)号：US20230030480A1

公开(公告)日：2023-02-02

申请号：US17499857

申请日：2021-10-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwang Oh KIM ,  Yibing Michelle WANG ,  Chunji WANG ,  Hongyu WANG

IPC: G01S17/10 ,  H04N5/378 ,  G04F10/00 ,  G01S7/4865 ,  G01S7/4861

Abstract: A LiDAR system is disclosed that includes a SPAD unit array and J read group (RG) channels. The SPAD unit array is arranged in M rows and N columns of pixel read groups. Each row includes K pixel read groups. Each pixel read group outputs a detection signal in response to a light pulse that is incident on the pixel read group. Each RG channel corresponds to at least one row of pixel read groups and includes L time-to-digital converters that respectively generate timestamp information corresponding to detection event signals of each of L pixel read groups in the at least one row of pixel read groups in which J

公开(公告)号：US20210325541A1

公开(公告)日：2021-10-21

申请号：US16940308

申请日：2020-07-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kwang Oh KIM ,  Yibing Michelle WANG ,  Radwanul Hasan Siddique ,  Lilong SHI ,  Chunji WANG

IPC: G01S17/894 ,  H04N13/254 ,  H04N13/156 ,  H04N5/369 ,  G06K9/00 ,  G06T7/20 ,  G06T7/521 ,  G06T7/55

Abstract: Provided is a 3D depth sensing system and method of providing an image based on a hybrid sensing array. The 3D sensing system including a light source configured to emit light, a hybrid sensing array comprising a 2D sensing region configured to detect ambient light reflected from an object and a 3D depth sensing region configured to detect the light emitted by the light source and reflected from the object, a metalens on the hybrid sensing array, the metalens being configured to direct the ambient light reflected from the object towards the 2D sensing region, and to direct the light emitted by the light source and reflected from the object towards the 3D depth sensing region, and a processing circuit configured to combine 2D image information provided by the 2D sensing region and 3D information provided by the 3D depth sensing region to generate a combined 3D image.

公开(公告)号：US20250164617A1

公开(公告)日：2025-05-22

申请号：US18406133

申请日：2024-01-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG ,  Tze Ching FUNG ,  Alfonso Cesar Barredo ALBASON ,  Chunji WANG

IPC: G01S7/4914 ,  G01S7/481 ,  G01S7/4915 ,  G01S7/497 ,  G01S17/14

Abstract: Provided are systems, methods, and apparatuses for up and down counting for efficient laser spot finding in LiDAR. In one or more examples, the systems, devices, and methods include dividing a pixel array into multiple macro blocks, a first macro block including at least a first pixel and a second pixel of the pixel array and initializing a first photon counter of the first pixel and a second photon counter of the second pixel. The systems, devices, and methods include determining an ambient photon count of the first photon counter based on performing a set number of ambient cycles with a laser transmitter off, determining a laser photon count of the first photon counter with the laser transmitter on, and using the first pixel to perform a time-of-flight measurement based on the first pixel being selected according to the ambient photon count and the laser photon count.

公开(公告)号：US20250164614A1

公开(公告)日：2025-05-22

申请号：US18406132

申请日：2024-01-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG ,  Chunji WANG ,  Hongyu WANG

IPC: G01S7/4865

Abstract: Provided are systems, methods, and apparatuses for progressive transmit delays for systematic time-dependent error elimination in LiDAR. In one or more examples, the systems, methods, and apparatuses include a device configured to delay transmission of a pulse of light based on a fine resolution of the device, detect a signal based on a reflected portion of the pulse of light, determine a coarse time and a fine time of the signal, and determine a readout based on the coarse time and the fine time.

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

IPC: G06F5/01 ,  G06F17/17

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.