Patents by Inventor Ernest Cheung

Ernest Cheung 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: 20210374399
    Abstract: A contactless biometrics monitoring system includes: a first device to transmit a modulated signal into an environment, the modulated signal being modulated to amplify one or more biometric patterns of a user located within the environment; and a second device to receive a reflection of the modulated signal off the user located within the environment. The reflection includes a vibration component, and the vibration component indicates biometric information of the user corresponding to the one or more biometric patterns amplified by the modulated signal.
    Type: Application
    Filed: July 29, 2020
    Publication date: December 2, 2021
    Inventors: Chor Hei Ernest Cheung, Yelei Li, Lin Sun, Caleb J. Li
  • Patent number: 6170430
    Abstract: A gas feedthrough in a semiconductor processing apparatus comprises a static-dissipative composite material. This material is characterized by good resistance to electromigration and is preferably made of a homogeneous material. This apparatus for preventing the transfer of energy to a gas flown through a gas line and comprises a gas feedthrough comprising a static-dissipative material, the feedthrough having a first end for abuttingly contacting an electrically energized member and a second end for contacting a grounded member, the feedthrough defining a void therein along its length to house a gas line.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: January 9, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Kuo-Shih Liu, Ernest Cheung, Prasanth Kumar, John Ferguson, Michael G. Friebe, Ashish Shrotriya, William Nixon Taylor, Jr.