US 12,219,270 B2
Image sensing device
Ping-Hung Yin, Hsinchu (TW); Jia-Shyang Wang, Miaoli County (TW); and Yu Hsiang Wang, Hsinchu (TW)
Assigned to Guangzhou Tyrafos Semiconductor Technologies Co., Ltd., Guangzhou (CN)
Filed by Guangzhou Tyrafos Semiconductor Technologies Co., Ltd., Guangzhou (CN)
Filed on May 4, 2023, as Appl. No. 18/143,084.
Claims priority of provisional application 63/345,920, filed on May 26, 2022.
Prior Publication US 2023/0388655 A1, Nov. 30, 2023
Int. Cl. H04N 25/10 (2023.01); G06T 3/4015 (2024.01); G06T 5/50 (2006.01); H01L 27/02 (2006.01); H01L 27/146 (2006.01); H04N 7/01 (2006.01); H04N 23/13 (2023.01); H04N 23/45 (2023.01); H04N 23/52 (2023.01); H04N 23/56 (2023.01); H04N 23/70 (2023.01); H04N 23/73 (2023.01); H04N 23/74 (2023.01); H04N 23/741 (2023.01); H04N 23/75 (2023.01); H04N 23/76 (2023.01); H04N 23/80 (2023.01); H04N 23/951 (2023.01); H04N 25/11 (2023.01); H04N 25/13 (2023.01); H04N 25/47 (2023.01); H04N 25/50 (2023.01); H04N 25/533 (2023.01); H04N 25/535 (2023.01); H04N 25/58 (2023.01); H04N 25/583 (2023.01); H04N 25/59 (2023.01); H04N 25/75 (2023.01); H04N 25/77 (2023.01); H04N 25/771 (2023.01); H04N 25/78 (2023.01)
CPC H04N 25/10 (2023.01) [G06T 3/4015 (2013.01); G06T 5/50 (2013.01); H01L 27/0255 (2013.01); H01L 27/14605 (2013.01); H01L 27/14612 (2013.01); H01L 27/14643 (2013.01); H04N 7/0127 (2013.01); H04N 23/13 (2023.01); H04N 23/45 (2023.01); H04N 23/52 (2023.01); H04N 23/56 (2023.01); H04N 23/70 (2023.01); H04N 23/73 (2023.01); H04N 23/74 (2023.01); H04N 23/741 (2023.01); H04N 23/75 (2023.01); H04N 23/76 (2023.01); H04N 23/815 (2023.01); H04N 23/951 (2023.01); H04N 25/11 (2023.01); H04N 25/134 (2023.01); H04N 25/135 (2023.01); H04N 25/47 (2023.01); H04N 25/50 (2023.01); H04N 25/533 (2023.01); H04N 25/535 (2023.01); H04N 25/58 (2023.01); H04N 25/583 (2023.01); H04N 25/59 (2023.01); H04N 25/75 (2023.01); H04N 25/77 (2023.01); H04N 25/771 (2023.01); H04N 25/78 (2023.01); G06T 2207/20208 (2013.01); G06T 2207/20221 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An image sensing device, comprising:
an image sensing array including a plurality of sensing units, the sensing units respectively generating multiple pieces of pixel data, and the multiple pieces of pixel data being generated according to different frame rates under different exposure periods; and
an image processing circuit coupled to the image sensing array,
wherein the multiple pieces of pixel data includes a first pixel data of a first sub-frame and a second pixel data of a second sub-frame, and the first pixel data is generated by exposing at a first frame rate for a first exposure period, the second pixel data is generated by exposing at a second frame rate for a second exposure period, the first frame rate is less than the second frame rate, and the first exposure period is greater than the second exposure period, and multiple pieces of the second pixel data are generated during one image capturing operation performed by the image processing circuit,
wherein the sensing units are divided into a plurality of pixel groups,
wherein the pixel groups are used to generate a high dynamic range image signal by using the image processing circuit to perform image fusion on the multiple pieces of pixel data according to the different frame rates under the different exposure periods in multiple image capturing operations,
wherein the sensing units include a control circuit, and the control circuit includes:
a first exposure control circuit for generating a first transmission signal and a first reset signal; and
a second exposure control circuit for generating a second transmission signal and a second reset signal, and
wherein the first exposure control circuit and the second exposure control circuit are independent, and are used to respectively control the different frame rates and the different exposure periods.