292 patents
Page 4 of 15
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
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
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
Utility
Readout Architectures for Dark Current Reduction In Indirect Time-of-flight Sensors
2 Feb 23
A pixel circuit includes a photodiode configured to photogenerate charge in response to reflected modulated light incident upon the photodiode.
Andreas Suess, Zheng Yang
Filed: 29 Jul 21
Utility
Flare-suppressing Image Sensor
2 Feb 23
Embodiments disclosed herein reduce petal flare.
Gang CHEN, Qin WANG, Chao NIU
Filed: 2 Aug 21
Utility
Color-infrared Sensor with a Low Power Binning Readout Mode
2 Feb 23
An imaging device includes a pixel array including a 4x4 grouping of pixel circuits.
Zheng Yang
Filed: 29 Jul 21
Utility
High Dynamic Range Image Sensor Having Reduced Crosstalk and Jaggy
12 Jan 23
An image sensor has a plurality of pixels arranged in a row direction and in a column direction.
Takeo Azuma, Chengming Liu
Filed: 12 Jul 21
Utility
SiGe Photodiode for Crosstalk Reduction
15 Dec 22
SiGe photodiode for crosstalk reduction.
Heesoo Kang, Bill Phan, Seong Yeol Mun
Filed: 9 Jun 21