Patents by Inventor Zhiqiang Lin

Zhiqiang Lin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240073559
    Abstract: Electrical Phase Detection Auto Focus. In one embodiment, an image sensor includes a plurality of pixels arranged in rows and columns of a pixel array disposed in a semiconductor material. Each pixel includes a plurality of photodiodes configured to receive incoming light through an illuminated surface of the semiconductor material. The plurality of pixels includes at least one autofocusing phase detection (PDAF) pixel having: a first subpixel without a light shielding, and a second subpixel without the light shielding. Autofocusing of the image sensor is at least in part determined based on different electrical outputs of the first subpixel and the second sub pixels.
    Type: Application
    Filed: August 23, 2022
    Publication date: February 29, 2024
    Inventors: Young Woo Jung, Chih-Wei Hsiung, Vincent Venezia, Zhiqiang Lin, Sang Joo Lee
  • Patent number: 11862651
    Abstract: A light-trapping image sensor includes a pixel array and a lens array. The pixel array is formed in and on a semiconductor substrate and including photosensitive pixels each including a reflective material forming a cavity around a portion of semiconductor material to at least partly trap light that has entered the cavity. The cavity has a ceiling at a light-receiving surface of the semiconductor substrate, and the ceiling forms an aperture for receiving the light into the cavity. The lens array is disposed on the pixel array. Each lens of the lens array is aligned to the aperture of a respective cavity to focus the light into the cavity through the aperture.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: January 2, 2024
    Assignee: OmniVision Technologies, Inc.
    Inventors: Alireza Bonakdar, Zhiqiang Lin, Lindsay Grant
  • Publication number: 20230395628
    Abstract: Half Quad Photodiode (QPD) for improving QPD channel imbalance. In one embodiment, an image sensor includes a plurality of pixels arranged in rows and columns of a pixel array that is disposed in a semiconductor material. Each pixel includes a plurality of subpixels. Each subpixel comprises a plurality of first photodiodes, a plurality of second photodiodes and a plurality of third photodiodes. The plurality of pixels are configured to receive incoming light through an illuminated surface of the semiconductor material. A plurality of small microlenses are individually distributed over individual first photodiodes and individual second photodiodes of each subpixel. A plurality of large microlenses are each distributed over a plurality of third photodiodes of each subpixel. A diameter of the small microlenses is smaller than a diameter of the large microlenses.
    Type: Application
    Filed: June 3, 2022
    Publication date: December 7, 2023
    Inventors: Chin Poh Pang, Wei Deng, Chen-Wei Lu, Da Meng, Guansong Liu, Yin Qian, Xiaodong Yang, Hongjun Li, Zhiqiang Lin, Chao Niu
  • Patent number: 11810928
    Abstract: CMOS image sensor with LED flickering reduction and low color cross-talk are disclosed. In one embodiment, an image sensor includes a plurality of pixels arranged in rows and columns of a pixel array that is disposed in a semiconductor substrate. Each pixel includes a plurality of large subpixels (LPDs) and at least one small subpixel (SPD). A plurality of color filters are disposed over individual subpixels. Each individual SPD is laterally adjacent to at least one other SPD.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: November 7, 2023
    Assignee: OMNIVISION TECHNOLOGIES, INC.
    Inventors: Duli Mao, Bill Phan, Seong Yeol Mun, Yuanliang Liu, Alireza Bonakdar, Chengming Liu, Zhiqiang Lin
  • Publication number: 20230154960
    Abstract: A dark-current-inhibiting image sensor includes a semiconductor substrate, a thin and a thin junction. The semiconductor substrate includes a front surface, a back surface opposite the front surface, a photodiode, and a concave surface between the front surface and the back surface. The concave surface extends from the back surface toward the front surface, and defines a trench that surrounds the photodiode in a cross-sectional plane parallel to the back surface. The thin junction extends from the concave surface into the semiconductor substrate, and is a region of the semiconductor substrate. The semiconductor substrate includes a first substrate region, located between the thin junction and the photodiode, that has a first conductive type. The photodiode and the thin junction have a second conductive type opposite the first conductive type.
    Type: Application
    Filed: November 18, 2021
    Publication date: May 18, 2023
    Inventors: Yifei DU, Zhiqiang LIN, Hui ZANG, Seong Yeol MUN
  • Patent number: 11538836
    Abstract: A pixel cell includes a photodiode disposed proximate to a front side of a semiconductor layer to generate image charge in response to incident light directed through a backside of the semiconductor layer. A cell deep trench isolation (CDTI) structure is disposed along an optical path of the incident light to the photodiode and proximate to the backside of the semiconductor layer. The CDTI structure includes a plurality of portions arranged in the semiconductor layer. Each of the plurality of portions extends a respective depth from the backside towards the front side of the semiconductor layer. The respective depth of each of the plurality of portions is different than a respective depth of a neighboring one of the plurality of portions. Each of the plurality of portions is laterally separated and spaced apart from said neighboring one of the plurality of portions in the semiconductor layer.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: December 27, 2022
    Assignee: OmniVision Technologies, Inc.
    Inventors: Hui Zang, Gang Chen, Chao Niu, Zhiqiang Lin
  • Publication number: 20220367542
    Abstract: CMOS image sensor with LED flickering reduction and low color cross-talk are disclosed. In one embodiment, an image sensor includes a plurality of pixels arranged in rows and columns of a pixel array that is disposed in a semiconductor substrate. Each pixel includes a plurality of large subpixels (LPDs) and at least one small subpixel (SPD). A plurality of color filters are disposed over individual subpixels. Each individual SPD is laterally adjacent to at least one other SPD.
    Type: Application
    Filed: May 17, 2021
    Publication date: November 17, 2022
    Inventors: Duli Mao, Bill Phan, Seong Yeol Mun, Yuanliang Liu, Alireza Bonakdar, Chengming Liu, Zhiqiang Lin
  • Publication number: 20220352224
    Abstract: CMOS image sensor with multiple sensitivities for high dynamic range imaging and LED flicker mitigation. In one embodiment, an image sensor includes a plurality of pixels arranged in rows and columns of a pixel array that is disposed in a semiconductor substrate. Each pixel includes a plurality of cells. A plurality of color filters is disposed over corresponding plurality of cells. The plurality of color filters corresponding to the plurality of cells of an individual pixel have more than one filtering strength for each color of the plurality of color filters.
    Type: Application
    Filed: April 29, 2021
    Publication date: November 3, 2022
    Inventors: Chengming Liu, Zhiqiang Lin, Duli Mao, Lingtao Jiang
  • Publication number: 20220337279
    Abstract: This invention relates to mobile phone stand technology, specially for a portable magnetic suction card bag, car and mobile phone stand, including the first card bags model and the second card bag model, the size of the stand for described first model and the second model is the same, also both make with leather material. The first card bags model and the second card bag model at the bottom and sides are connected via car stitches, at the top of the form open end, by setting the card bag to insert the card from the open end card bag, used to put CARDS or business CARDS, etc., through the card with an elliptic hole for auxiliary take card, And through the degaussing sheet, to prevent the card from being degaussed, through the setting of the bracket plate, not only can easily hold the phone, eliminate the risk of slipping, but also to support the phone stand, simple structure, convenient to use.
    Type: Application
    Filed: October 28, 2021
    Publication date: October 20, 2022
    Applicant: GUANGDONG QIANDU TECHNOLOGY CO.,LTD.
    Inventor: Zhiqiang Lin
  • Publication number: 20220259276
    Abstract: Provided is a polynucleotide, including a cis-regulatory element and a nucleotide sequence encoding a vestigial like 4 protein, wherein the cis-regulatory element includes an uncoupling protein 1 enhancer and an uncoupling protein 1 promoter. Also provided is a viral vector including said polynucleotide. Also provided is a method of transfecting a cell or a subject with said polynucleotide or said viral vector.
    Type: Application
    Filed: April 27, 2022
    Publication date: August 18, 2022
    Applicant: MASONIC MEDICAL RESEARCH LABORATORY
    Inventor: Zhiqiang LIN
  • Patent number: 11393861
    Abstract: A flare-suppressing image sensor includes a first pixel formed in a substrate and a refractive element located above the first pixel. The refractive element has, with respect to a top surface of the substrate, a height profile having at least two one-dimensional local maxima in each of a first cross-sectional plane and a second cross-sectional plane perpendicular to the first cross-sectional plane. Each of the first and second cross-sectional planes is perpendicular to the top surface and intersects the first pixel.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: July 19, 2022
    Assignee: OmniVision Technologies, Inc.
    Inventors: Alireza Bonakdar, Zhiqiang Lin, Chen-Wei Lu
  • Patent number: 11362124
    Abstract: An image sensor with quantum efficiency enhanced by inverted pyramids includes a semiconductor substrate and a plurality of microlenses. The semiconductor substrate includes an array of pixels. Each of the pixels is configured to convert light incident on the pixel to an electrical output signal, the semiconductor substrate having a top surface for receiving the light. The top surface forms a plurality of inverted pyramids in each pixel. The plurality of microlenses are disposed above the top surface and aligned to the plurality of inverted pyramids, respectively.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: June 14, 2022
    Assignee: OmniVision Technologies, Inc.
    Inventors: Alireza Bonakdar, Zhiqiang Lin, Bill Phan, Badrinath Padmanabhan
  • Patent number: 11319354
    Abstract: Provided is a polynucleotide, including a cis-regulatory element and a nucleotide sequence encoding a vestigial like 4 protein, wherein the cis-regulatory element includes an uncoupling protein 1 enhancer and an uncoupling protein 1 promoter. Also provided is a viral vector including said polynucleotide. Also provided is a method of transfecting a cell or a subject with said polynucleotide or said viral vector.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: May 3, 2022
    Assignee: MASONIC MEDICAL RESEARCH LABORATORY
    Inventor: Zhiqiang Lin
  • Publication number: 20220124505
    Abstract: Bluetooth Address Tracking (BAT) is an allowlist-based side channel attack to track Bluetooth devices, by either passively sniffing the Bluetooth packets, or actively replaying the sniffed ones. Securing addresses of Bluetooth Low Energy (BLE) is described, which uses an interval unpredictable, central and peripheral synchronized random media access control (MAC) address generation scheme to defend against passive BAT attacks, and uses a current timestamp to derive random MAC addresses to defeat active BAT attacks, such that attackers can no longer be able to replay them.
    Type: Application
    Filed: October 20, 2021
    Publication date: April 21, 2022
    Inventors: Zhiqiang Lin, Yue Zhang
  • Patent number: 11289523
    Abstract: An image sensor includes a substrate material, an array of the color filters, an array of waveguides and spacers. The substrate material includes a plurality of photodiodes disposed therein. The array of color filters are disposed over the substrate material. The array of waveguides are disposed over the substrate material. The buffer layer is disposed between the substrate material and the arrays of color filters and waveguides. The spacers are disposed between the color filters in the array of color filters. The spacers are disposed between the waveguides in the array of waveguides. Incident light is adapted to be confined between the spacers. The incident light is adapted to be directed through one of the waveguides and through one of the color filters prior to being directed through the buffer layer into one of the photodiodes in the substrate material.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: March 29, 2022
    Assignee: OMNIVISION TECHNOLOGIES, INC.
    Inventors: Alireza Bonakdar, Zhiqiang Lin
  • Publication number: 20220052085
    Abstract: A pixel cell includes a photodiode disposed proximate to a front side of a semiconductor layer to generate image charge in response to incident light directed through a backside of the semiconductor layer. A cell deep trench isolation (CDTI) structure is disposed along an optical path of the incident light to the photodiode and proximate to the backside of the semiconductor layer. The CDTI structure includes a plurality of portions arranged in the semiconductor layer. Each of the plurality of portions extends a respective depth from the backside towards the front side of the semiconductor layer. The respective depth of each of the plurality of portions is different than a respective depth of a neighboring one of the plurality of portions. Each of the plurality of portions is laterally separated and spaced apart from said neighboring one of the plurality of portions in the semiconductor layer.
    Type: Application
    Filed: August 13, 2020
    Publication date: February 17, 2022
    Inventors: Hui Zang, Gang Chen, Chao Niu, Zhiqiang Lin
  • Patent number: 11211421
    Abstract: A sensor includes a photodiode disposed in a semiconductor material to receive light and convert the light into charge, and a first floating diffusion coupled to the photodiode to receive the charge. A second floating diffusion is coupled to the photodiode to receive the charge, and a first transfer transistor is coupled to transfer the charge from the photodiode into the first floating diffusion. A second transfer transistor is coupled to transfer the charge from the photodiode into the second floating diffusion, and an inductor is coupled between a first gate terminal of the first transfer transistor and a second gate terminal of the second transfer transistor. The inductor, the first gate terminal, and the second gate terminal form a resonant circuit.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: December 28, 2021
    Assignee: OMNIVISION TECHNOLOGIES, INC.
    Inventors: Xianmin Yi, Jingming Yao, Philip Cizdziel, Eric Webster, Duli Mao, Zhiqiang Lin, Jens Landgraf, Keiji Mabuchi, Kevin Johnson, Sohei Manabe, Dyson H. Tai, Lindsay Grant, Boyd Fowler
  • Publication number: 20210356633
    Abstract: Provided is a wide angle application high reflective mirror having a reflection band partially overlapping in a wavelength range of 800-4000 nm. The mirror comprises a film system in which a plurality of high refractive index film layers and a plurality of low refractive index film layers that are alternately stacked, and the material of the high refractive index film layer is one of SiH, SiOxHy, or SiOxNy, or a mixture thereof. The highly reflective mirror can achieve a reflectance greater than 99% with an incident angle ranging from 0 to 60 degrees over a large angle range.
    Type: Application
    Filed: December 9, 2018
    Publication date: November 18, 2021
    Inventors: Li WU, Zhe LIU, Guanglong YU, Yu LI, Yan SU, Zhiqiang LIN
  • Patent number: 11158661
    Abstract: An image sensor includes a two-dimensional photodiode-array formed in a semiconductor substrate, a first waveguide, and a first color filter. The first waveguide is aligned to a first photodiode of the photodiode-array, located above a top substrate surface of the semiconductor substrate. A first core of the first waveguide has a first core width that is less than a pitch of the photodiode-array in a first direction and a second direction corresponding to respective orthogonal dimensions of the photodiode-array. The first color filter is on a top waveguide surface of the first waveguide and has a first non-uniform thickness above the first core. The first waveguide is between the top substrate surface and the first color filter.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: October 26, 2021
    Assignee: OmniVision Technologies, Inc.
    Inventors: Alireza Bonakdar, Zhiqiang Lin
  • Publication number: 20210274860
    Abstract: The invention relates to the field of sanitary products, in particular to a mask capable of preventing spectacles against mist. The mask comprises a mask body having an external surface and an internal surface, and a sponge strip fixedly connected to an upper part of the internal surface of the mask body. The side, away from the mask body, of the sponge strip is concave-convex to fit the nose bridge. The invention has the following beneficial effects: the sponge strip can well fit the nose bridge of the face of a wearer in shape, the sponge strip is compressible, the sponge strip will be squeezed by the mask body and the face of the wearer to deform to perfectly fit the face of different wearers; and the sponge is soft, so that the wear comfort of the mask can be improved.
    Type: Application
    Filed: March 29, 2020
    Publication date: September 9, 2021
    Inventors: Zhijian Lin, Zhiqiang Lin, Yanzhong Xu