593 patents
Page 10 of 30
Utility
Endoscope having large field of view resulted from two field of views
18 Oct 22
An endoscope comprises a light splitting device for transmitting a first illuminating light and reflecting a second illuminating light emitted by a light source.
Mei-Chun Lin
Filed: 29 Aug 17
Utility
Metal deep trench isolation biasing solution
18 Oct 22
An image sensor includes photodiodes disposed in a pixel region and proximate to a front side of a semiconductor layer.
Hui Zang, Gang Chen, Kenny Geng
Filed: 1 Jul 20
Utility
Dual Floating Diffusion Transistor with Vertical Gate Structure for Image Sensor
13 Oct 22
A pixel circuit includes a photodiode and a floating diffusion disposed in a semiconductor substrate.
Hui Zang, Gang Chen
Filed: 13 Apr 21
Utility
Flare-blocking image sensor
11 Oct 22
A flare-blocking image sensor includes large pixels and small pixels, a microlens, and an opaque element.
Alireza Bonakdar, Shinn-Jhy Lian, Badrinath Padmanabhan
Filed: 30 Jan 20
Utility
Pixel-array Substrate
6 Oct 22
A pixel-array substrate includes (i) a semiconductor substrate including a photodiode region and a floating diffusion region, and (ii) a vertical-transfer-gate structure that includes a trench and a gate electrode.
Hui ZANG, Gang CHEN
Filed: 1 Apr 21
Utility
Metal Grid Structure Integrated with Deep Trench Isolation Structure
6 Oct 22
A high k passivation layer, an anti-reflective coating layer, and a buffer layer are disposed over semiconductor substrate including photodiodes formed therein.
Seong Yeol Mun, Yibo Zhu, Keiji Mabuchi
Filed: 30 Mar 21
Utility
Uneven-trench Pixel Cell and Fabrication Method
6 Oct 22
An uneven-trench pixel cell includes a semiconductor substrate that includes a floating diffusion region, a photodiode region, and, between a front surface and a back surface: a first sidewall surface, a shallow bottom surface, a second sidewall surface, and a deep bottom surface.
Hui ZANG, Gang CHEN
Filed: 1 Apr 21
Utility
Current Steering Ramp Compensation Scheme and Digital Circuit Implementation
6 Oct 22
A ramp generator includes a plurality of switched current sources coupled in parallel between a resistor and ground.
Tao Sun
Filed: 30 Mar 21
Utility
Pixel and associated transfer-gate fabrication method
4 Oct 22
A method for forming a transfer gate includes (i) forming a dielectric pillar on a surface of a semiconductor substrate and (ii) growing an epitaxial layer on the semiconductor substrate and surrounding the dielectric pillar.
Hui Zang, Gang Chen
Filed: 28 Feb 20
Utility
Bitline control supporting binning mode phase detection autofocus photodiodes
4 Oct 22
An imaging device includes pixel circuits that include either image sensing photodiodes or phase detection autofocus (PDAF) photodiodes.
Rui Wang, Zheng Yang
Filed: 4 Jun 21
Utility
Image sensor with three readout approach for phase detection autofocus and image sensing photodiodes through multiple column bitlines
4 Oct 22
An imaging device includes a photodiode array with a first and second photodiodes.
Chengcheng Xu, Rui Wang, Wei Deng, Chun-Sheng Yang, Xueqing Wang
Filed: 8 Jun 21
Utility
Stack chip air gap heat insulator
27 Sep 22
Image sensors include a pixel die that is stacked on a logic die.
Sing-Chung Hu
Filed: 9 Oct 19
Utility
Motion Detection System and Method
22 Sep 22
A motion-detection method includes for a motion-detection region in a first image of a scene, (i) determining a respective first pixel-value gradient at each of a plurality of pixel-coordinates within the motion-detection region, and (ii) determining a first feature-descriptor value as a function of the first pixel-value gradients and position vectors defined by the plurality of pixel-coordinates.
Hitoshi Watanabe
Filed: 22 Mar 22
Utility
Dual floating diffusion transistor with vertical gate structure for image sensor
20 Sep 22
A pixel circuit includes a photodiode and a floating diffusion disposed in a semiconductor substrate.
Hui Zang, Gang Chen
Filed: 13 Apr 21
Utility
Multi-cell pixel array for high dynamic range image sensors
20 Sep 22
A pixel includes an array of a plurality of photodiodes.
Johannes Solhusvik
Filed: 5 Nov 19
Utility
Image compression technique for low-power, always-on camera systems
20 Sep 22
A method of compressing and storing preview video includes performing colorspace-reduction image compression on a reference frame of a video to generate a colorspace-reduced reference frame; determining difference blocks representing areas of a subsequent image frame that differ from the reference frame and generating a difference frame comprising colorspace-reduced image data of the difference blocks; generating a video stream comprising a color palette, the colorspace-reduced reference frame, and the difference frame, and storing the video stream in an extreme low-voltage memory; and injecting, into the video stream prior to storing the video stream in the extreme low-voltage memory, a plurality of resynchronization codes for each reference frame and a plurality of resynchronization codes for each difference frame, the resynchronization codes comprising a byte sequence unique to resynchronization codes.
Yu-Wei Chang, Wei-Feng Huang
Filed: 16 Jul 21
Utility
Isolation structure for suppression floating diffusion junction leakage in CMOS image sensor
13 Sep 22
Examples of the disclosed subject matter propose disposing deep trench isolation structure around the perimeter of the pixel transistor region of the pixel cell.
Seong Yeol Mun, Bill Phan
Filed: 8 Jul 20
Utility
Pixel for time-of-flight applications
6 Sep 22
A time-of-flight (TOF) pixel includes a semiconductor material and a photogate disposed proximate to a frontside of the semiconductor material.
Eric A. G. Webster
Filed: 4 Feb 19
Utility
Tilted Transfer Gate for Advanced Cmos Image Sensor
1 Sep 22
A pixel circuit includes a trench etched into a front side surface of a semiconductor substrate.
Qin Wang
Filed: 26 Feb 21
Utility
Analog to digital converter clock control to extend analog gain and reduce noise
30 Aug 22
A clock control circuit of an ADC includes a plurality of fractional divider circuits, each including a programmable integer divider coupled to receive an enable skew signal, a clock signal, and an output integer signal to divide down the clock signal by a factor responsive to the output integer signal to generate a fractional divider signal.
Lihang Fan, Nijun Jiang, Liang Zuo, Yuedan Li, Min Qu
Filed: 30 Mar 21