Patents by Inventor Andrew S. Tucker

Andrew S. Tucker 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).

  • Thin-film acoustic imaging system for imaging through an exterior surface of an electronic device housing
    Patent number: 11950512
    Abstract: An acoustic imaging system coupled to a sensing plate to define an imaging surface. The acoustic imaging system includes an array of piezoelectric acoustic transducers coupled to the sensing plate opposite the imaging surface and formed using a thin-film manufacturing process over an application-specific integrated circuit that, in turn, is configured to leverage the array of piezoelectric actuators to generate an image of an object at least partially wetting to the imaging surface.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: April 2, 2024
    Assignee: Apple Inc.
    Inventors: Ehsan Khajeh, Aaron S. Tucker, Andrew W. Joyce, Brian M. King, Giovanni Gozzini, Jason S. Griesbach, Marcus C. Yip, Mohammad Yeke Yazdandoost, Gordon S. Franza, Henry H. Yang
  • Weighted entropy pool service
    Patent number: 7930332
    Abstract: A weighted entropy pool service system and methods. Weights are associated with entropy sources and are used to estimate a quantity of entropy contained in data from the entropy sources. An interface is optionally provided to facilitate connecting user entropy sources to the entropy pool service. The quantity of entropy contained in the system is tracked as entropy is distributed to entropy consumers. A persistent entropy pool state file stores entropy across system restarts.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: April 19, 2011
    Assignee: Microsoft Corporation
    Inventors: Tolga Acar, Daniel B. Shumow, Andrew S. Tucker, Carl M. Ellison
  • WEIGHTED ENTROPY POOL SERVICE
    Publication number: 20080256151
    Abstract: A weighted entropy pool service system and methods. Weights are associated with entropy sources and are used to estimate a quantity of entropy contained in data from the entropy sources. An interface is optionally provided to facilitate connecting user entropy sources to the entropy pool service. The quantity of entropy contained in the system is tracked as entropy is distributed to entropy consumers. A persistent entropy pool state file stores entropy across system restarts.
    Type: Application
    Filed: March 23, 2007
    Publication date: October 16, 2008
    Applicant: Microsoft Corporation
    Inventors: Tolga Acar, Daniel B. Shumow, Andrew S. Tucker, Carl M. Ellison