Patents by Inventor David Li

David Li 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).

  • Memory circuit architecture
    Patent number: 11908537
    Abstract: A semiconductor device includes: a memory circuit having a plurality of quadrants arranged at corners of the memory circuit and surrounding a bank control component; wherein a first quadrant of the plurality of quadrants includes a first bit cell core and a first set of input output circuits configured to access the first bit cell core, the first quadrant defined by a rectangular boundary that encloses portions of two perpendicular edges of the memory circuit; wherein a second quadrant of the plurality of quadrants includes a second bit cell core and a second set of input output circuits configured to access the second bit cell core, the second quadrant being adjacent the first quadrant, wherein a border between the first quadrant and the second quadrant defines a first axis about which the first quadrant and the second quadrant are symmetrical.
    Type: Grant
    Filed: February 1, 2023
    Date of Patent: February 20, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: David Li, Rahul Biradar, Biju Manakkam Veetil, Po-Hung Chen, Ayan Paul, Sung Son, Shivendra Kushwaha, Ravindra Reddy Chekkera, Derek Yang
  • Depth estimation using biometric data
    Patent number: 11887322
    Abstract: Method of generating depth estimate based on biometric data starts with server receiving positioning data from first device associated with first user. First device generates positioning data based on analysis of a data stream comprising images of second user that is associated with second device. Server then receives a biometric data of second user from second device. Biometric data is based on output from a sensor or a camera included in second device. Server then determines a distance of second user from first device using positioning data and biometric data of the second user. Other embodiments are described herein.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: January 30, 2024
    Assignee: SNAP INC.
    Inventors: Piers George Cowburn, David Li, Isac Andreas Müller Sandvik, Qi Pan
  • HELITRON MEDIATED GENETIC MODIFICATION
    Publication number: 20230374551
    Abstract: Compositions, systems and methods for targeted gene modification, insertion and perturbation of gene transcripts and nucleic acid editing are provided. In particular, helitron-mediated gene targeting systems and methods of their use are detailed and provided herein.
    Type: Application
    Filed: October 8, 2021
    Publication date: November 23, 2023
    Inventors: Feng Zhang, Jonathan Strecker, David Li
  • DISCOVERY OF YEATS2 YEATS DOMAIN INHIBITORS AS NOVEL ANTI-CANCER AGENTS
    Publication number: 20230355705
    Abstract: The subject invention pertains to novel inhibitors of the YEATS2 YEATS domain and compositions thereof and methods of using said compositions to treat cancer in a subject. The subject inhibitors and compositions thereof can target the Kac binding pocket. Compounds of the subject invention can exhibit strong inhibition on cancerous cell growth, including NSCLC cell growth and proliferation.
    Type: Application
    Filed: March 17, 2023
    Publication date: November 9, 2023
    Inventors: Xiang David LI, Xin LI, Sha LIU
  • CROWD SOURCED MAPPING SYSTEM
    Publication number: 20230360344
    Abstract: A crowd-sourced modeling system to perform operations that include: receiving image data that comprises image attributes; accessing a 3D model based on at least the image attributes of the image data, wherein the 3D model comprises a plurality of parts that collectively depict an object or environment; identifying a change in the object or environment based on a comparison of the image data with the plurality of parts of the 3D model, the change corresponding to a part of the 3D model from among the plurality of parts; and generating an update to the part of the 3D model based on the image attributes of the image data.
    Type: Application
    Filed: July 19, 2023
    Publication date: November 9, 2023
    Inventors: Piers George Cowburn, Isac Andreas Müller Sandvik, Qi Pan, David Li
  • Crowd sourced mapping system
    Patent number: 11798243
    Abstract: A crowd-sourced modeling system to perform operations that include: receiving image data that comprises image attributes; accessing a 3D model based on at least the image attributes of the image data, wherein the 3D model comprises a plurality of parts that collectively depict an object or environment; identifying a change in the object or environment based on a comparison of the image data with the plurality of parts of the 3D model, the change corresponding to a part of the 3D model from among the plurality of parts; and generating an update to the part of the 3D model based on the image attributes of the image data.
    Type: Grant
    Filed: September 20, 2022
    Date of Patent: October 24, 2023
    Assignee: Snap Inc.
    Inventors: Piers Cowburn, Isac Andreas Müller Sandvik, Qi Pan, David Li
  • WORLD-SPACE SEGMENTATION
    Publication number: 20230326033
    Abstract: Methods, systems, and devices for generating a persistent world-space ground (or floor) segmentation map (or “texture”) for use in augmented or virtual reality 3D experiences.
    Type: Application
    Filed: June 2, 2023
    Publication date: October 12, 2023
    Inventors: Piers Cowburn, David Li, Isac Andreas Müller Sandvik, Qi Pan, Andrew Tristan Spek
  • SHARED AUGMENTED REALITY SYSTEM
    Publication number: 20230316746
    Abstract: An augmented reality system to perform operations that include: accessing image data at a client device; determining a position of a user of the client device based on the image data; causing display of a projection that extends from the position of the user upon a presentation of the image data at the client device; detecting an intersection of the projection and a surface of an object; generating a request that includes an identification of the portion of the surface of the object at the client device; and presenting the portion of the surface of the object based on the graphical property of the projection at the client device in response to the request that includes the identification of the portion of the surface of the object.
    Type: Application
    Filed: May 31, 2023
    Publication date: October 5, 2023
    Inventors: David Li, Isac Andreas Müller Sandvik, Qi Pan, Rastan Boroujerdi, Kevin Yimeng Hong, Peng Deng, Piers George Cowburn, Jonathan Tang, Junjie Wei
  • Shared augmented reality system
    Patent number: 11776256
    Abstract: An augmented reality system to perform operations that include: accessing image data at a client device; determining a position of a user of the client device based on the image data; causing display of a projection that extends from the position of the user upon a presentation of the image data at the client device; detecting an intersection of the projection and a surface of an object; generating a request that includes an identification of the portion of the surface of the object at the client device; and presenting the portion of the surface of the object based on the graphical property of the projection at the client device in response to the request that includes the identification of the portion of the surface of the object.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: October 3, 2023
    Assignee: Snap Inc.
    Inventors: David Li, Isac Andreas Müller Sandvik, Qi Pan, Rastan Boroujerdi, Kevin Yimeng Hong, Peng Deng, Piers George Cowburn, Jonathan Tang, Junjie Wei
  • NOVEL CAS ENZYMES AND METHODS OF PROFILING SPECIFICITY AND ACTIVITY
    Publication number: 20230287370
    Abstract: A method of identifying and characterizing novel Cas protein and guide RNAs with desired activity and specificity. The disclosure further comprises compositions and systems comprising engineered Cas protein and guide RNAs with desired activity and specificity.
    Type: Application
    Filed: March 11, 2021
    Publication date: September 14, 2023
    Inventors: Feng Zhang, Jonathan Leo Schmid-Burgk, Linyi Gao, David Li
  • GENETICALLY ENCODED YEATS DOMAIN PROBE AND APPLICATIONS THEREOF
    Publication number: 20230272370
    Abstract: Provided is a product, composition that contains genetically encoded YEATS domain probe. Provided is a method of making the genetically encoded YEATS domain probes. Also provided are methods of modulating YEATS domain proteins using the genetically encoded probes.
    Type: Application
    Filed: July 27, 2021
    Publication date: August 31, 2023
    Inventors: Xiang David LI, Xin LI, Gaofei TIAN
  • MARKER-BASED SHARED AUGMENTED REALITY SESSION CREATION
    Publication number: 20230274461
    Abstract: Method for creating marker-based shared augmented reality (AR) session starts with initializing a shared AR session by a first device and by a second device. The first device displays on a display a marker. The second device detects the marker using a camera included in the second device and captures an image of the marker using the camera. The second device determines a transformation between the first device and the second device using the image of the marker. A common coordinate frame is then determined using the transformation, the shared AR session is generated using the common coordinate frame, and the shared AR session is caused to be displayed by the first device and by the second device. Other embodiments are described herein.
    Type: Application
    Filed: May 6, 2023
    Publication date: August 31, 2023
    Inventors: Piers George Cowburn, David Li, Isac Andreas Müller Sandvik, Qi Pan, Matan Zohar
  • World-space segmentation
    Patent number: 11721025
    Abstract: Methods, systems, and devices for generating a persistent world-space ground (or floor) segmentation map (or “texture”) for use in augmented or virtual reality 3D experiences.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: August 8, 2023
    Assignee: Snap Inc.
    Inventors: Piers Cowburn, David Li, Isac Andreas Müller Sandvik, Qi Pan, Andrew Tristan Spek
  • Interactive augmented reality system
    Patent number: 11721072
    Abstract: Example embodiments described herein relate to an augmented-reality system to generate and cause display of interactive augmented reality content at a client device.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: August 8, 2023
    Assignee: Snap Inc.
    Inventors: David Li, Piers George Cowburn, Isac Andreas Müller Sandvik, Qi Pan
  • INTERACTIVE AUGMENTED REALITY SYSTEM
    Publication number: 20230245394
    Abstract: Example embodiments described herein relate to an augmented-reality system to generate and cause display of interactive augmented reality content at a client device.
    Type: Application
    Filed: April 11, 2023
    Publication date: August 3, 2023
    Inventors: David Li, Piers George Cowburn, Isac Andreas Müller Sandvik, Qi Pan
  • Framework For User-Directed Profile-Driven Optimizations
    Publication number: 20230244458
    Abstract: A method for using profiling to obtain application-specific, preferred parameter values for an application is disclosed. First, a parameter for which to obtain an application-specific value is identified. Code is then augmented for application-specific profiling of the parameter. The parameter is profiled and profile data is collected. The profile data is then analyzed to determine the application's preferred parameter value for the profile parameter.
    Type: Application
    Filed: April 11, 2023
    Publication date: August 3, 2023
    Inventors: Teresa Louise Johnson, Xinliang David Li
  • OCCLUSION DETECTION SYSTEM
    Publication number: 20230236661
    Abstract: An occlusion detection system to perform operations that include: capturing image data that depicts an environment at a client device, the environment including a target object at a position within the environment; causing display of a presentation of the environment at the client device, the presentation of the environment including a display of the target object at the position within the environment; detecting a first attribute of the display of the target object at the client device; performing a comparison of the first attribute of the display of the target object and a second attribute associated with the target object; and detecting an occlusion based on the comparison.
    Type: Application
    Filed: March 8, 2023
    Publication date: July 27, 2023
    Inventors: Piers Cowburn, David Li, Isac Andreas Müller Sandvik, Qi Pan
  • Occlusion detection system
    Patent number: 11687150
    Abstract: An occlusion detection system to perform operations that include: capturing image data that depicts an environment at a client device, the environment including a target object at a position within the environment; causing display of a presentation of the environment at the client device, the presentation of the environment including a display of the target object at the position within the environment; detecting a first attribute of the display of the target object at the client device; performing a comparison of the first attribute of the display of the target object and a second attribute associated with the target object; and detecting an occlusion based on the comparison.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: June 27, 2023
    Assignee: Snap Inc.
    Inventors: Piers Cowburn, David Li, Isac Andreas Müller Sandvik, Qi Pan
  • 3D PAINT EFFECTS IN A MESSAGING SYSTEM
    Publication number: 20230196675
    Abstract: Systems and methods are provided for determining a location of a selection in a space viewable in a camera view on a display of a computing device, detecting movement of the computing device, and generating a path based on the location of the selection and the movement of the computing device. The systems and methods further provide for generating a three-dimensional (3D) mesh along the path, populating the 3D mesh with selected options to generate a 3D paint object, and causing the generated 3D paint object to be displayed. The systems and methods further provide for receiving a request to send a message comprising an image or video overlaid by the 3D paint object, capturing the image or video overlaid by the displayed 3D paint object, generating the message comprising the image or video overlaid by the 3D paint object, and sending the message to another computing device.
    Type: Application
    Filed: February 15, 2023
    Publication date: June 22, 2023
    Inventors: Piers George Cowburn, Kyle Goodrich, Samuel Edward Hare, Maxim Maximov Lazarov, David Li, Tony Mathew, Andrew James McPhee, Daniel Moreno, Isac Andreas Müller Sandvik, Wentao Shang
  • DEPTH ESTIMATION USING BIOMETRIC DATA
    Publication number: 20230186498
    Abstract: Method of generating depth estimate based on biometric data starts with server receiving positioning data from first device associated with first user. First device generates positioning data based on analysis of a data stream comprising images of second user that is associated with second device. Server then receives a biometric data of second user from second device. Biometric data is based on output from a sensor or a camera included in second device. Server then determines a distance of second user from first device using positioning data and biometric data of the second user. Other embodiments are described herein.
    Type: Application
    Filed: February 6, 2023
    Publication date: June 15, 2023
    Inventors: Piers George Cowburn, David Li, Isac Andreas Müller Sandvik, Qi Pan