301 patents
Page 14 of 16
Utility
Dual conversion gain high dynamic range readout for comparator of double ramp analog to digital converter
6 Apr 20
A method includes coupling a low gain input of a dual stage comparator to establish a low conversion gain mode.
Hiroaki Ebihara
Filed: 13 Aug 19
Utility
Liquid-crystal-on-silicon device and associated method for preventing dark-banding therein
6 Apr 20
A method for preventing dark banding in a liquid-crystal-on-silicon (LCoS) device, comprising illuminating, during a first timeframe, a transparent conductive layer of the LCoS device with a first illumination, the LCoS device including liquid-crystal layer between the transparent conductive layer and a reflective pixel-array.
Sinsuk Lee
Filed: 6 Jun 18
Utility
Combined visible and infrared image sensor incorporating selective infrared optical filter
30 Mar 20
A pixel array comprise a green pixel comprising a first green optical filter and a first clear filter, a red pixel comprising a red optical filter and a first special filter, a blue pixel comprising a blue optical filter and a second special filter, and an IR pixel comprising an IR optical filter and one of a second green optical filter and a second clear filter, where the first special filter suppresses a transmission of IR at a stopband centered at 850 nm at a first IR minimum transmission, and the second special filter suppresses a transmission of IR at the stopband centered at 850 nm at a second IR minimum transmission, and where the first minimum IR transmission is different from the second minimum IR transmission.
Tawei Ho, Chen-Wei Lu, Cheng-ming Liu
Filed: 20 Aug 18
Utility
Embedded multimedia systems with adaptive rate control for power efficient video streaming
23 Mar 20
A system includes an image sensor and a sending controller.
Jiyan Wu, Jilai Qian, Jun Wei, Shunbo Mou
Filed: 26 Dec 17
Utility
Self-alignment of a pad and ground in an image sensor
9 Mar 20
An image sensor includes a plurality of photodiodes disposed in a semiconductor material to convert image light into image charge, and a metal grid, including a metal shield that is coplanar with the metal grid, disposed proximate to a backside of the semiconductor material.
Qin Wang, Gang Chen, Duli Mao
Filed: 7 Jan 19
Utility
Systems and methods for active depth imager with background subtract
2 Mar 20
An active depth imaging system and method of operating the same captures illuminator-on and illuminator-off image data with each of a first and second imager.
Zheng Yang, Eiichi Funatsu, Sohei Manabe, Keiji Mabuchi, Dajiang Yang, Duli Mao, Bowei Zhang
Filed: 1 Nov 16
Utility
Communication screen editing and previewing
2 Mar 20
A method for communicating from a mobile platform includes arranging a plurality of regions in a communication screen on a first mobile platform.
Jizhang Shan, Hui Pan, Xinhua Su
Filed: 18 Jun 14
Utility
Image demosaicer and method
24 Feb 20
A method for demosaicing a raw image includes: (1) horizontally-interpolating a green channel formed of primary pixel-values Bg(x,y)g to yield a horizontally-interpolated green channel that includes both Bg(x,y)g and non-primary pixel-values Igh(x,y)r,b; (2) modifying each Igh(x,y)r,b, by horizontally-neighboring pixel-values, to yield a refined horizontally-interpolated green channel; (3) vertically-interpolating the green channel to yield a vertically-interpolated green channel that includes pixel-values Igv(x,y)r,b; (4) modifying each Igv(x,y)r,b by vertically-neighboring pixel-values, to yield a refined vertically-interpolated green channel; (5) generating a full-resolution green channel from the refined interpolated green channels and gradients thereof; (6) generating a full-resolution red channel by determining red pixel-values from a local-red mean value of neighboring pixel-values and the full-resolution green channel; (7) generating a full-resolution blue channel by determining pixel-values from a local-blue mean value of neighboring pixel-values and the full-resolution green channel; and (8) combining the full-resolution channels to yield a demosaiced raw image.
Sarvesh Swami, Yubo Duan, Chengming Liu
Filed: 10 Apr 18
Utility
Four-surface near-infrared wafer-level lens systems
24 Feb 20
A four-surface, near-infrared wafer-level lens system for imaging a scene onto an image plane includes (a) a first wafer-level lens having a first convex lens surface facing the scene and a second concave lens surface facing the image plane, and (b) a second wafer-level lens disposed between the first wafer-level lens and the image plane and including a third concave lens surface facing the scene and a fourth aspheric convex lens surface facing the image plane.
Tingyu Cheng, Jau-Jan Deng
Filed: 9 Jan 17
Utility
Variably biased isolation structure for global shutter pixel storage node
17 Feb 20
A pixel cell includes a photodiode disposed in a semiconductor material to accumulate image charge in response to incident light and a global shutter gate transistor coupled to the photodiode to selectively deplete the image charge from the photodiode.
Kevin Ka Kei Leung
Filed: 21 Aug 18
Utility
Resonant-filter image sensor and associated fabrication method
17 Feb 20
A resonant-filter image sensor includes a pixel array including a plurality of pixels and a microresonator layer above the pixel array.
Yuanwei Zheng, Gang Chen, Duli Mao, Dyson H. Tai, Lequn Liu
Filed: 13 Feb 19
Utility
Self-aligned optical grid on image sensor
17 Feb 20
An image sensor includes a substrate, a plurality of light sensitive pixels, a first plurality of color filters, a plurality of reflective sidewalls, and a second plurality of color filters.
Xin Wang, Dajing Yang, Qin Wang, Duli Mao, Dyson Hsin-Chih Tai
Filed: 12 Sep 18
Utility
Image sensor with dual trench isolation structures at different isolation structure depths
17 Feb 20
An image sensor includes a plurality of photodiodes disposed in a semiconductor material to convert image light into image charge.
Young Woo Jung, Lindsay Grant, Dyson Tai, Vincent Venezia, Wei Zheng
Filed: 17 Oct 17
Utility
Methods for high-dynamic-range color imaging
10 Feb 20
A method for manufacturing a high-dynamic-range color image sensor includes (a) depositing a color filter layer on a silicon substrate having a photosensitive pixel array with a plurality of first pixels and a plurality of second pixels, to form (i) a plurality of first color filters above a first subset of each of the plurality of first pixels and the plurality of second pixels and (ii) a plurality of second color filters above a second subset of each of the plurality of first pixels and the plurality of second pixels, wherein thickness of the second color filters exceeds thickness of the first color filters, and (b) depositing, on the color filter layer, a dynamic-range extending layer including grey filters above the second pixels to attenuate light propagating toward the second pixels, combined thickness of the color filter layer and the dynamic-range extending layer being uniform across the photosensitive pixel array.
Chen-Wei Lu, Dajiang Yang, Oray Orkun Cellek, Duli Mao
Filed: 1 Apr 18
Utility
Drive system for TN LC base LCOS displays
3 Feb 20
A liquid-crystal display (LCD) system with reduced artifact has LCD pixel cells with transparent and pixel electrodes.
Sinsuk Lee
Filed: 3 May 18
Utility
Exposure level control for high-dynamic-range imaging, system and method
27 Jan 20
A method for determining exposure levels of an image-sensor pixel array includes (a) storing a first plurality of pixel values representing a first captured image, captured with the image sensor in an applied exposure configuration, each distinct region of the pixel array having a respective first exposure level, (b) determining pixel-value global statistics, (c) estimating, from the global statistics, a global pixel value of the first captured image, (d) determining, for each distinct region, a respective local statistics of the first pixel values, (e) assigning, to each distinct region, a respective scale factor based on the local statistics of the distinct region, (f) determining a refined exposure configuration including, for each distinct region, a second exposure level proportional to a product of its respective first exposure level and its respective scale factor, and (g) capturing second pixel values with the image sensor configured in the refined exposure configuration.
Fanbo Deng, Chengming Liu, Sarvesh Swami
Filed: 8 Jan 18
Utility
Pixel readout structure and timing to provide fixed pattern noise reduction in image sensors
27 Jan 20
Systems and methods for fixed pattern noise reduction in image sensors is disclosed herein.
Tiejun Dai, Jing Yin, Rui Wang
Filed: 11 Oct 16
Utility
Plasmonic-nanostructure sensor pixel
13 Jan 20
A first plasmonic-nanostructure sensor pixel includes a semiconductor substrate and a plurality of metal pillars.
Boyang Zhang, Chin Poh Pang
Filed: 11 Jan 16
Utility
Small pixels having dual conversion gain providing high dynamic range
16 Dec 19
A group of shared pixels comprises: a first shared pixel comprising a first photodiode and a first transfer gate; a second shared pixel comprising a second photodiode and a second transfer gate; a third shared pixel comprising a third photodiode and a third transfer gate; a fourth shared pixel comprising a fourth photodiode and a first transfer gate; a first floating diffusion shared by the first shared pixel and the second shared pixel; a second floating diffusion shared by the third shared pixel and the fourth shared pixel; a capacitor coupled to the first floating diffusion through a first dual conversion gain transistor, and the second floating diffusion through a second dual conversion gain transistor; wherein the capacitor is formed in an area covering most of the first shared pixel, the second shared pixel, the third shared pixel, and the fourth shared pixel.
Rui Wang, Zheng Yang, Hiroaki Ebihara, Tiejun Dai
Filed: 13 Jun 18
Utility
Low latency display system and method
9 Dec 19
A novel display system includes a host and a display.
Sunny Yat-san Ng
Filed: 31 Mar 16