301 patents
Page 2 of 16
Utility
Readout architecture for indirect time-of-flight sensing
26 Sep 23
A time-of-flight sensor includes a pixel array of pixel circuits.
Andreas Suess, Zheng Yang
Filed: 28 Oct 21
Utility
Trimming control circuit for current integration ramp DAC settling assist circuit
26 Sep 23
A ramp generator includes an operational amplifier having an output to generate a ramp signal.
Zhenfu Tian, Hiroaki Ebihara, Tao Sun, Yi Liu, Shan Chen
Filed: 13 Apr 22
Utility
High dynamic range CMOS image sensor pixel with reverse biased metal-insulator-metal lateral overflow integration capacitor for reduced image lag
19 Sep 23
A pixel circuit includes a transfer transistor is coupled between a photodiode and a floating diffusion to transfer the image charge from the photodiode to the floating diffusion.
Woon Il Choi, Yifei Du
Filed: 24 Jun 22
Utility
Techniques for measuring depth and polarization from a single sensor
12 Sep 23
In some embodiments, an image sensor is provided.
Wenshou Chen, Yiyi Ren, Guansong Liu, Badri Padmanabhan, Alireza Bonakdar, Richard Mann
Filed: 1 Feb 21
Utility
Fully buried color filter array of image sensor
5 Sep 23
An image sensor includes a substrate.
Gang Chen, Yuanwei Zheng, Qin Wang, Cunyu Yang, Guannan Chen, Duli Mao, Dyson H. Tai, Lindsay Alexander Grant
Filed: 21 Dec 21
Utility
Reference clock complementary metal-oxide semiconductor (CMOS) input buffer with self-calibration and improved electrostatic discharge (ESP) performance
5 Sep 23
Reference clock CMOS input buffer with self-calibration and improved ESD performance.
Charles Qingle Wu, Yanying He, Weiyi Zhang
Filed: 2 Sep 21
Utility
Voltage domain global shutter readout circuit timing
5 Sep 23
A global shutter readout circuit includes a pixel enable signal and a first sample and hold (SH) signal that are configured to turn ON a pixel enable transistor and a first storage transistor at a first time during a global transfer period.
Ling Fu, Tiejun Dai, Zhe Gao
Filed: 26 May 22
Utility
High dynamic range CMOS image sensor pixel with reduced metal-insulator-metal lateral overflow integration capacitor lag
22 Aug 23
A pixel circuit includes a photodiode configured to photogenerate image charge in response to incident light.
Woon Il Choi
Filed: 24 Jun 22
Utility
High dynamic range CMOS image sensor pixel with reduced metal-insulator-metal lateral overflow integration capacitor reset settling
15 Aug 23
A pixel circuit includes a transfer transistor coupled between a photodiode and a floating diffusion.
Woon Il Choi
Filed: 24 Jun 22
Utility
Voltage domain global shutter readout circuit
15 Aug 23
A global shutter readout circuit includes a reset transistor coupled between a reset voltage and a bitline.
Zhe Gao, Hiroaki Ebihara, Ling Fu, Tiejun Dai
Filed: 26 May 22
Utility
Low power event driven pixels with passive difference detection circuitry, and reset control circuits for the same
15 Aug 23
Low power event driven pixels with passive difference detection circuit (and reset control circuits for the same) are disclosed herein.
Andreas Suess, Shoushun Chen
Filed: 27 Jul 22
Utility
Ramp settling assist circuit in local ramp buffer circuit
8 Aug 23
A ramp buffer circuit includes an input device having an input coupled to receive a ramp signal.
Hiroaki Ebihara, Zhenfu Tian, Tao Sun, Liang Zuo, Yu-Shen Yang, Satoshi Sakurai, Rui Wang
Filed: 13 Apr 22
Utility
Image sensor with shifted color filter array pattern and bit line pairs
1 Aug 23
An imaging device includes groupings of photodiodes having four photodiodes.
Qingfei Chen, Rui Wang, Wei Wei Wang, Zhiyong Zhan, Xin Wang, Qingwei Shan, Kenny Geng
Filed: 3 Feb 22
Utility
Sample and hold switch driver circuitry with slope control
1 Aug 23
A switch driver circuit includes a plurality of pullup transistors.
Zhe Gao, Ling Fu, Yu-Shen Yang, Tiejun Dai
Filed: 18 Nov 21
Utility
Flicker-mitigating pixel-array substrate
25 Jul 23
A flicker-mitigating pixel-array substrate includes a semiconductor substrate and a metal annulus.
Yuanliang Liu, Bill Phan, Duli Mao, Hui Zang
Filed: 10 Dec 20
Utility
Image sensor and method for reading out signal of image sensor
18 Jul 23
An image sensor includes a plurality of pixels that is arranged in a matrix and each of which outputs a signal in response to incident light, wherein readout of data can be performed with respect to the plurality of pixels, and simultaneous readout of data of a plurality of columns of pixels can be performed, and at least one pixel of the plurality of columns of pixels to be read simultaneously can be read for phase detection with respect to each of divided sub-pixels.
Hiroki Ui, Eiichi Funatsu
Filed: 7 Apr 22
Utility
Image sensor with voltage supply grid clamping
18 Jul 23
An image sensing device includes an image sensing circuit, a voltage supply grid, bitlines, and a control circuit.
Chengcheng Xu, Rui Wang, Bi Yuan, Liang Zuo
Filed: 19 Nov 21
Utility
Method of forming shallow trench isolation (STI) structure for suppressing dark current
18 Jul 23
A method of fabricating a target shallow trench isolation (STI) structure between devices in a wafer-level image sensor having a large number of pixels includes etching a trench, the trench having a greater depth and width than a target STI structure and epitaxially growing the substrate material in the trench for a length of time necessary to provide the target depth and width of the isolation structure.
Seong Yeol Mun
Filed: 22 Dec 21
Utility
Selective nitrided gate-oxide for RTS noise and white-pixel reduction
11 Jul 23
A pixel cell includes a nitrogen-implanted region at a semiconductor material-gate oxide proximate interface located in a region above a photodiode.
Seong Yeol Mun
Filed: 9 Jan 20
Utility
Reduced cross-talk pixel-array substrate and fabrication method
4 Jul 23
A pixel-array substrate includes a semiconductor substrate, a buffer layer, and a metal annulus.
Seong Yeol Mun
Filed: 30 Dec 20