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).

  • Framework for user-directed profile-driven optimizations
    Patent number: 11675574
    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: Grant
    Filed: March 17, 2022
    Date of Patent: June 13, 2023
    Assignee: Google LLC
    Inventors: Teresa Louise Johnson, Xinliang David Li
  • MEMORY CIRCUIT ARCHITECTURE
    Publication number: 20230178118
    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: Application
    Filed: February 1, 2023
    Publication date: June 8, 2023
    Inventors: David LI, Rahul BIRADAR, Biju MANAKKAM VEETIL, Po-Hung CHEN, Ayan PAUL, Sung SON, Shivendra KUSHWAHA, Ravindra Reddy CHEKKERA, Derek YANG
  • Marker-based shared augmented reality session creation
    Patent number: 11663736
    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: Grant
    Filed: December 27, 2019
    Date of Patent: May 30, 2023
    Assignee: Snap Inc.
    Inventors: Piers Cowburn, David Li, Isac Andreas Müller Sandvik, Qi Pan, Matan Zohar
  • SEQUENCING-BASED POPULATION SCALE SCREENING
    Publication number: 20230151441
    Abstract: Provided herein are methods and kits for parallel detection one or more target sequences across multiple samples, comprising separating a set of samples into one or more pooled sets, wherein each sample may comprise an initial amplicon comprising one or more target sequences and at least one barcode; conducting an amplification reaction on the one or more pooled sets to further amplify the amplicons, and optionally further adding an additional barcode to the amplicon; sequencing the amplicons; identifying individual samples from the pooled sample set that are positive for the one or more target sequences based on sequencing of the amplicons, wherein identification is based, at least in part, on detection of the unique combination of barcodes.
    Type: Application
    Filed: April 2, 2021
    Publication date: May 18, 2023
    Inventors: Feng Zhang, Jonathan Schmid-Burgk, David Li
  • 3D paint effects in a messaging system
    Patent number: 11625895
    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: Grant
    Filed: July 28, 2021
    Date of Patent: April 11, 2023
    Assignee: Snap Inc.
    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
  • AUGMENTED REALITY GUIDANCE INTERFACE
    Publication number: 20230085791
    Abstract: Example embodiments described herein therefore relate to an AR guidance system to perform operations that include: detecting a client device at a location within a geo-fenced area, wherein the geo-fenced area may include within it, a destination of interest; determining a route to the destination of interest from the location of the client device within the geo-fenced area; causing display of a presentation of an environment within an AR interface at the client device; detecting a display of real-world signage within the presentation of the environment; generating a media item in response to the detecting the display of the signage within the presentation of the environment, wherein the media item is based on the route to the destination of interest; and causing display of the media item within the AR interface based on the position of the signage within the presentation of the environment.
    Type: Application
    Filed: November 21, 2022
    Publication date: March 23, 2023
    Inventors: Piers George Cowburn, David Li, Isac Andreas Müller Sandvik, Qi Pan
  • Memory circuit architecture
    Patent number: 11600307
    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: December 29, 2020
    Date of Patent: March 7, 2023
    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
  • Multi hole inlet structure
    Patent number: 11596943
    Abstract: Some embodiments of a micro-fluidic device include at least one inlet hole located on an inlet side of the microfluidic device, the inlet hole consisting of a plurality of holes with diameters smaller in size than a diameter of the at least one inlet hole, at least one outlet hole located on an outlet side of the microfluidic device opposite the inlet side; and a micro-channel, where the plurality of holes are connected to the micro-channel.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: March 7, 2023
    Assignee: Canon Virginia, Inc.
    Inventors: Yoichi Murakami, Makoto Ogusu, Christina Pysher, Scott Sundberg, Chris J Felice, David Li
  • Augmented reality guidance interface
    Patent number: 11598643
    Abstract: Example embodiments described herein therefore relate to an AR guidance system to perform operations that include: detecting a client device at a location within a geo-fenced area, wherein the geo-fenced area may include within it, a destination of interest; determining a route to the destination of interest from the location of the client device within the geo-fenced area; causing display of a presentation of an environment within an AR interface at the client device; detecting a display of real-world signage within the presentation of the environment; generating a media item in response to the detecting the display of the signage within the presentation of the environment, wherein the media item is based on the route to the destination of interest; and causing display of the media item within the AR interface based on the position of the signage within the presentation of the environment.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: March 7, 2023
    Assignee: Snap Inc.
    Inventors: Piers Cowburn, David Li, Isac Andreas Müller Sandvik, Qi Pan
  • GENOME EDITING USING REVERSE TRANSCRIPTASE ENABLED AND FULLY ACTIVE CRISPR COMPLEXES
    Publication number: 20230049737
    Abstract: Systems and methods for targeted gene modification, targeted insertion, perturbation of gene transcripts, and nucleic acid editing. Novel nucleic acid targeting systems comprise components of CRISPR systems, reverse transcriptase, pegRNAs, paired pegRNAs or modified pegRNAs, DNA processing proteins, recombinases, proteins for inhibiting nucleases, and proteins for promoting ssDNA annealing.
    Type: Application
    Filed: December 30, 2020
    Publication date: February 16, 2023
    Applicants: THE BROAD INSTITUTE, INC., MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Feng Zhang, Jonathan Strecker, David Li
  • Depth estimation using biometric data
    Patent number: 11580657
    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: August 3, 2020
    Date of Patent: February 14, 2023
    Assignee: SNAP INC.
    Inventors: Piers George Cowburn, David Li, Isac Andreas Müller Sandvik, Qi Pan
  • CROWD SOURCED MAPPING SYSTEM
    Publication number: 20230011686
    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: September 20, 2022
    Publication date: January 12, 2023
    Inventors: Piers Cowburn, Isac Andreas Müller Sandvik, Qi Pan, David Li
  • Yeats inhibitors and methods of use thereof
    Patent number: 11512111
    Abstract: Disclosed herein are compositions and methods suitable for treating acute leukemia by inhibiting ? ? ? stacking in the YEATS protein domain. YEATS protein domains are typically found in a variety of chromatin modification molecular complexes. Cancer cells are characterized by aberrant epigenetic landscapes and often exploit chromatin machinery to activate oncogenic gene expression programs. Quantitative analysis of the inhibitory activity of YEATS domain inhibitors by use of a fluorescence-based assay revealed that several of the tested inhibitors achieved 50% inhibition at the submicro/nanomolar level. As such, provided is the use of small molecule inhibitors that target the ENL YEATS domain to selectively kill leukemic MLL-r cells.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: November 29, 2022
    Assignee: THE UNIVERSITY OF HONG KONG
    Inventors: Xiang David Li, Xin Li
  • INTERACTIVE AUGMENTED REALITY SYSTEM
    Publication number: 20220366616
    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: July 29, 2022
    Publication date: November 17, 2022
    Inventors: David Li, Piers George Cowburn, Isac Andreas Müller Sandvik, Qi Pan
  • Augmented reality session creation using skeleton tracking
    Patent number: 11488358
    Abstract: Methods and systems are disclosed for creating a shared augmented reality (AR) session. The methods and systems perform operations comprising: receiving, by a second device, a request to join an AR session initialized by a first device; in response to receiving the request, detecting a body corresponding to a user of the first device in one or more images captured by a camera of the second device; identifying a body part of the detected body corresponding to the user of the first device; determining, by the second device, a transformation in the AR session between the first device and the second device using the identified body part; and causing the AR session to be displayed by the second device based on the determined transformation.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: November 1, 2022
    Assignee: Snap Inc.
    Inventors: Piers Cowburn, David Li, Isac Andreas Müller Sandvik, Qi Pan, Matan Zohar
  • Crowd sourced mapping system
    Patent number: 11488368
    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: May 25, 2021
    Date of Patent: November 1, 2022
    Assignee: Snap Inc.
    Inventors: Piers Cowburn, Isac Andreas Müller Sandvik, Qi Pan, David Li
  • LOCATION BASED AUGMENTED-REALITY SYSTEM
    Publication number: 20220343596
    Abstract: A location-based augmented-reality system to generate and cause display of augmented-reality content that includes three-dimensional typography, based on a perspective, and location of a client device.
    Type: Application
    Filed: May 13, 2022
    Publication date: October 27, 2022
    Inventors: Piers George Cowburn, David Li, Isac Andreas Müller Sandvik, Qi Pan
  • Interactive augmented reality system
    Patent number: 11481932
    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 12, 2021
    Date of Patent: October 25, 2022
    Assignee: Snap Inc.
    Inventors: David Li, Piers George Cowburn, Isac Andreas Müller Sandvik, Qi Pan
  • Systems and Methods for Model Selection
    Publication number: 20220318689
    Abstract: Systems and methods for model selection in accordance with embodiments of the invention are illustrated. One embodiment includes a method for ranking candidate models. The method includes steps for identifying several candidate models and a set of one or more scoring models for each of the several candidate models and determining a rank distribution for each of several model pairs, where each model pair of the several model pairs includes a candidate model of the several candidate models and a scoring model of the set of scoring models. The rank distribution for each model pair can be determined based on scores for the candidate model generated by the scoring model and scores generated by the scoring model for other candidate models of the several candidate models. The method further includes ranking the several models based on the determined rank distributions.
    Type: Application
    Filed: April 6, 2022
    Publication date: October 6, 2022
    Applicant: Unlearn.AI, Inc.
    Inventors: David Li-Bland, Aaron Michael Smith, Anton D. Loukianov
  • WORLD-SPACE SEGMENTATION
    Publication number: 20220301175
    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 8, 2022
    Publication date: September 22, 2022
    Inventors: Piers Cowburn, David Li, Isac Andreas Müller Sandvik, Qi Pan, Andrew Tristan Spek