Patents by Inventor Tianchang GU

Tianchang GU 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).

  • Patent number: 12242695
    Abstract: In some examples, an electronic device including a touch screen can sense a stylus proximate to the touch screen. For example, the user can draw or write with the stylus to create a simulated drawing or simulated handwriting displayed on the touch screen. In some examples, the electronic device can sense a series of “points” corresponding to the location of the stylus over time while the drawing/writing input was provided. In some situations, noise in the stylus data can cause the electronic device not to sense one or more noisy points included in the drawing or handwriting input. In some examples, the electronic device can interpolate the noisy points based on sensed points before and/or after the time of the skipped points.
    Type: Grant
    Filed: September 6, 2023
    Date of Patent: March 4, 2025
    Assignee: Apple Inc.
    Inventors: Thomas Deselaers, Peder Blekken, Francisco Alvaro Munoz, Ryan S. Dixon, Nima Ferdosi, Tianchang Gu, Mayank Garg
  • Publication number: 20240214021
    Abstract: Obstruction detecting logic may execute touch-sensing algorithms on the electronic device, which may detect when a user is gripping the electronic device from the side, when the fingers or hand of the user is on the edge of the electronic device, when the user is using one or more fingers to touch the electronic device, and may determine thumb and finger orientation. Using the touch-sensing methods, it may be determined which antennas are obstructed. To mitigate negative antenna performance due to the determined obstruction, one or more compensation actions may be taken. The touch-sensing algorithms may estimate user thumb/finger orientation and velocity, which may be used to predict future antenna occlusion (e.g., if the hand of the user is in motion).
    Type: Application
    Filed: December 22, 2022
    Publication date: June 27, 2024
    Inventors: Aditya N. Srivastava, Thomas E. Biedka, Tianchang Gu, Apexit Shah
  • Publication number: 20240036202
    Abstract: LiDARs and distance measuring methods are provided. In one aspect, a LiDAR includes: a laser emitting device, a control device, a detection device, and a data processing device. The control device is configured to generate a trigger signal based on a time sequence random number. The laser emitting device includes at least one laser and at least one driver coupled with the at least one laser, and a driver is configured to drive a laser coupled to the driver to emit a laser pulse signal according to the trigger signal. The detection device is configured to receive an echo signal of the laser pulse signal reflected by an object and convert the echo signal into an electrical signal. The data processing device is configured to determine distance information of the object based on an emission time of the laser pulse signal and a reception time of the echo signal.
    Type: Application
    Filed: October 6, 2023
    Publication date: February 1, 2024
    Inventors: Jin YANG, Tianchang GU, Chongyang WANG, Shaoqing XIANG