593 patents
Page 7 of 30
Utility
Artifact-Reducing Pixel And Method
16 Mar 23
A pixel includes a semiconductor substrate that includes a floating diffusion region and a photodiode region.
Gang CHEN, Shiyu SUN, Yuanwei ZHENG, Armin YAZDANI
Filed: 15 Sep 21
Utility
Dam of Image Sensor Module Having Sawtooth Pattern and Inclined Surface on Its Inner Wall and Method of Making Same
9 Mar 23
An image sensor module comprises an image sensor having a light sensing area, a cover glass for covering the light sensing area, a dam between the image sensor and the cover glass, which surrounds the light sensing area, and has an outer wall and an inner wall, where a cross-section of the inner wall parallel to the surface of the light sensing area of the image sensor forms a sawtooth pattern and/or, where a cross-section of the inner wall orthogonal to the surface of the light sensing area of the image sensor forms an inclined surface.
Wei-Feng Lin, En-Chi Li, Chi-Chih Huang
Filed: 26 Oct 22
Utility
Video Coding Device And Method
9 Mar 23
A video encoding method includes (i) determining a current bit rate of a communication channel between a destination device and a source device that stores an input video frame, and (ii) generating a current reconstructed frame and an encoded bitstream at least in part via inter-frame coding of a current input video frame of a sequence of input video frames using a previously-generated reconstructed frame generated at least in part via inter-frame coding of a previous input video frame.
Hitoshi Watanabe
Filed: 8 Sep 21
Utility
Anti-spoofing Optical Fingerprint Sensor Methods and Hardware with Color Selection
9 Mar 23
An optical fingerprint sensor with spoof detection includes a plurality of lenses; a pixel array including a plurality of first photodiodes, a line between a center of each first photodiode and an optical center of each lens forms an optical axis; at least one apertured baffle-layer positioned between the image sensor and the plurality of lenses, each having a respective plurality of aperture stops, each aperture stop being center-aligned with the optical axis; and a plurality of second photodiodes intercalated with the plurality of first photodiodes; and a color filter layer between the pixel array and the plurality of lenses, said color filter layer includes a plurality of color filters positioned such that each second photodiode is configured to detect electromagnetic energy having passed through lens, a color filter, and at least one aperture stop not aligned along the optical axis.
Paul Wickboldt
Filed: 8 Sep 21
Utility
Method of Detecting Spoof Fingerprints Using an Optical Fingerprint Sensor and Polarization
9 Mar 23
A method for detecting spoof fingerprints detected using an optical fingerprint sensor and polarization includes controlling a display of an electronic device to output a pattern of light to illuminate a fingerprint sample touching the display; blocking smaller-angle light from impinging a plurality of anti-spoof photodiodes of the pixel array; filtering larger-angle light incident on the plurality of anti-spoof photodiodes to at least one polarization direction; detecting the larger-angle light using the plurality of anti-spoof photodiodes; correlating the larger-angle light with the pattern of light; determining the fingerprint spoofing based at least in part on the correlation of the larger-angle light and the pattern of light; and wherein the plurality of anti-spoof photodiodes is interleaved with a plurality of imaging photodiodes such that each anti-spoof photodiode of the plurality of anti-spoof photodiodes is between adjacent imaging photodiodes of the plurality of imaging photodiodes.
Paul Wickboldt
Filed: 27 Oct 22
Utility
Method for Detecting Spoof Fingerprints with an Under-display Fingerprint Sensor
9 Mar 23
A method for detecting spoof fingerprints with an under-display fingerprint sensor includes illuminating, with incident light emitted from a display, a target region of a fingerprint sample disposed on a top surface of the display; detecting a first scattered signal from the fingerprint sample with a first image sensor region of an image sensor located beneath the display, the first image sensor region not directly beneath the target region, the first scattered signal including a first portion of the incident light scattered by the target region; determining a scattered light distribution based at least in part on the first scattered signal; and identifying spoof fingerprints based at least in part on the scattered light distribution.
Paul Wickboldt
Filed: 8 Sep 21
Utility
Optical Fingerprint Sensor with Spoof Detection and Associated Method
9 Mar 23
An optical fingerprint sensor with spoof detection includes a plurality of lenses, an image sensor including a pixel array that includes a plurality of first photodiodes and a plurality of second photodiodes, and at least one apertured baffle-layer having a plurality of aperture stops, wherein each second photodiode is configured to detect light having passed through a lens and at least one aperture stop not aligned with the lens along an optical axis.
Paul Wickboldt, Jau-Jan Deng, Shih-Hsin HSU
Filed: 8 Sep 21
Utility
Reference Clock Complementary Metal-oxide Semiconductor (Cmos) Input Buffer with Self-calibration and Improved Electrostatic Discharge (Esd) Performance
2 Mar 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
Flare-reducing Image Sensor
2 Mar 23
A flare-reducing image sensor includes a plurality of pixels, NP in number, and a plurality of microlenses, NML in number, where each of the plurality of microlenses is aligned to a respective one of the plurality of pixels, such that NP=NML.
Qin WANG, Chao NIU
Filed: 1 Sep 21
Utility
Image Sensor with Varying Depth Deep Trench Isolation Structure for Reduced Crosstalk
2 Mar 23
An image sensor comprises a first photodiode, a second photodiode, and a deep trench isolation structure.
Seong Yeol Mun
Filed: 31 Aug 21
Utility
Image Sensor with Vertical Transfer Gate
2 Mar 23
A pixel of an image sensor includes a semiconductor substrate having a front surface and a back surface opposing the front surface, a photodiode and floating diffusion (FD) region formed in the substrate along a first pixel axis parallel to the front surface and a transfer gate formed in the front surface of the substrate between the photodiode and the FD region.
Hui ZANG, Gang CHEN
Filed: 25 Aug 21
Utility
Anti-spoofing optical fingerprint sensor methods and hardware with color selection
28 Feb 23
An optical fingerprint sensor with spoof detection includes a plurality of lenses; a pixel array including a plurality of first photodiodes, a line between a center of each first photodiode and an optical center of each lens forms an optical axis; at least one apertured baffle-layer positioned between the image sensor and the plurality of lenses, each having a respective plurality of aperture stops, each aperture stop being center-aligned with the optical axis; and a plurality of second photodiodes intercalated with the plurality of first photodiodes; and a color filter layer between the pixel array and the plurality of lenses, said color filter layer includes a plurality of color filters positioned such that each second photodiode is configured to detect electromagnetic energy having passed through lens, a color filter, and at least one aperture stop not aligned along the optical axis.
Paul Wickboldt
Filed: 8 Sep 21
Utility
Ramp generator providing high resolution fine gain including fractional divider with delta-sigma modulator
28 Feb 23
A ramp generator providing ramp signal with high resolution fine gain includes a current mirror having a first and second paths to conduct a capacitor current and an integrator current responsive to the capacitor current.
Lihang Fan, Liang Zuo, Nijun Jiang, Min Qu, Xuelian Liu
Filed: 5 May 20
Utility
Semiconductor Device Contact Pad and Method of Contact Pad Fabrication
23 Feb 23
A method for forming a contact pad of a semiconductor device is disclosed.
Hui Zang
Filed: 20 Aug 21
Utility
Surface-mount device platform and assembly
21 Feb 23
A surface-mount device platform includes a surface-mounting region, a connection region, and a bendable region therebetween, each including a respective part of a base substrate.
Teng-Sheng Chen, Chien-Chan Yeh, Cheng-Fang Chiu, Wei-Feng Lin
Filed: 22 Aug 19
Utility
Uniform threshold voltage non-planar transistors
21 Feb 23
Transistors having nonplanar electron channels in the channel width plane have one or more features that cause the different parts of the nonplanar electron channel to turn on at substantially the same threshold voltage.
Hui Zang, Gang Chen
Filed: 20 May 21
Utility
Event Filtering In an Event Sensing System
16 Feb 23
An event sensing system includes a pixel array including a plurality of event driven pixel circuits configured to be illuminated by incident light.
Shoushun Chen, Menghan Guo, Andreas Suess
Filed: 13 Aug 21
Utility
Image Processing Method and Apparatus Implementing the Same
9 Feb 23
An image processing method and a device configured to implement the same are disclosed.
YAN YE, ZHONGYANG HUANG, GUANSONG LIU
Filed: 5 Aug 21
Utility
Imaging System for Detecting Human-object Interaction and a Method for Detecting Human-object Interaction
9 Feb 23
The present application discloses an imaging system for detecting human-object interaction and a method for detecting human-object interaction thereof.
SHIMIAO LI, ZHONGYANG HUANG, GUANSONG LIU
Filed: 5 Aug 21
Utility
Flare-blocking Image Sensor
9 Feb 23
Alireza BONAKDAR, Shinn-Jhy LIAN, Badrinath PADMANABHAN
Filed: 10 Oct 22