公开(公告)号：US11454546B2

公开(公告)日：2022-09-27

申请号：US16937572

申请日：2020-07-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwang Oh Kim ,  Yibing Michelle Wang ,  Radwanul Hasan Siddique

IPC: G01J5/22 ,  H01L27/146 ,  H04N5/33

Abstract: A pixel for an image sensor includes a resistive microbolometer sensor portion, a visible image sensor portion, and an output path. The resistive microbolometer sensor portion outputs a signal corresponding to an infrared (IR) image sensed by the resistive microbolometer sensor portion. The resistive microbolometer sensor portion uses no bias current. 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 resistive microbolometer sensor portion and the visible image sensor portion, and may be controlled to selectively output the signal corresponding to the IR image, the signal corresponding to the visible image, or a fused image based on the IR image and the visible image. The resistive microbolometer sensor portion may sense a near infrared image or a longwave infrared image.

公开(公告)号：US20220018945A1

公开(公告)日：2022-01-20

申请号：US17011813

申请日：2020-09-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kwang Oh Kim ,  Yibing Michelle Wang

IPC: G01S7/4915 ,  G01S17/58 ,  G01S7/481 ,  G01S17/06

Abstract: Provided is a readout integrated circuit of a FMCW LiDAR system includes a transimpedance amplifier to receive an optical signal of optical mixer output from balanced PIN photo diode, convert the received optical signal into a current signal including a mixed signal of high and low frequencies, and convert the current signal into a voltage signal including a low frequency sinusoidal waveform, a comparator to receive the voltage signal, and generate a pulse signal from the voltage signal, a primary counter to receive a primary signal corresponding to the pulse signal, and count a number of pulses to generate primary counter data, a reference counter to receive a reference signal, and count a number of pulses to generate reference counter data, and an arithmetic logic unit to receive the primary and reference counter data, and calculate depth information corresponding to a distance of a target.

公开(公告)号：US11002531B2

公开(公告)日：2021-05-11

申请号：US16595461

申请日：2019-10-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle Wang ,  Kwang Oh Kim

IPC: G01B11/22 ,  H04N5/225 ,  H04N5/232 ,  G06T7/521 ,  G01B11/25 ,  G03B15/02 ,  H04N13/271 ,  G03B17/54

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.