Patents by Inventor Benedict Chien

Benedict Chien 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: 11301566
    Abstract: A platform security processor is booted and reads a set of write-once memory bits to obtain a minimum security patch level (SPL). The security processor then verifies that a table SPL for a firmware security table is greater than or equal to the minimum SPL. The firmware security table includes a plurality of firmware identifiers for firmware code modules, and a plurality of check SPL values each associated with respective one of the firmware identifiers. The security processor verifies SPL values in a plurality of firmware code modules by, for each firmware code module, accessing the module to obtain its firmware SPL value and check if the respective firmware SPL value is equal to or greater than a respective check SPL value in the firmware security table.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: April 12, 2022
    Assignee: ATI Technologies ULC
    Inventors: Kathirkamanathan Nadarajah, Benedict Chien
  • Patent number: 11272191
    Abstract: An apparatus and methods for controlling power consumption in video encoding obtain, before motion estimation is performed on an image frame to be encoded, information regarding an amount of the image frame to be encoded that is static with respect to a previously encoded image frame. The apparatus and methods adjust power consumption of the video encoder based on the obtained information regarding the amount of the image frame to be encoded that is static.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: March 8, 2022
    Assignee: ATI TECHNOLOGIES ULC
    Inventors: Ihab M. A. Amer, Khaled Mammou, Benedict Chien, Lei Zhang, Stephen A. J. Bagshaw, Naveed A. Gazi, Zhiqi Hao, Ping Chen, Li Baochun, Syed Hussain
  • Publication number: 20210004466
    Abstract: A platform security processor is booted and reads a set of write-once memory bits to obtain a minimum security patch level (SPL). The security processor then verifies that a table SPL for a firmware security table is greater than or equal to the minimum SPL. The firmware security table includes a plurality of firmware identifiers for firmware code modules, and a plurality of check SPL values each associated with respective one of the firmware identifiers. The security processor verifies SPL values in a plurality of firmware code modules by, for each firmware code module, accessing the module to obtain its firmware SPL value and check if the respective firmware SPL value is equal to or greater than a respective check SPL value in the firmware security table.
    Type: Application
    Filed: July 3, 2019
    Publication date: January 7, 2021
    Applicant: ATI Technologies ULC
    Inventors: Kathirkamanathan Nadarajah, Benedict Chien
  • Patent number: 9819962
    Abstract: Disclosed is a low-complexity and yet efficient lossy method to compress distortion information for motion estimation, resulting in significant reduction in needed storage capacity. A system for implementing the method and a computer-readable medium for storing the method are also disclosed. The method includes determining and storing a distortion value for each trial motion vector in a plurality of trial motion vectors. Each trial motion vector specifies a position of a search region relative to a reference frame. The method further includes compressing each of the distortion values as a fixed number of bits based upon a minimum distortion value amongst the stored distortion values, and re-storing each compressed distortion value in place of its uncompressed value.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: November 14, 2017
    Assignee: ATI TECHNOLOGIES ULC
    Inventors: Khaled Mammou, Ihab M. A. Amer, Gabor Sines, John-Paul A. Compagnone, Gerald S C Chan, Ying Luo, Edward A. Harold, Lei Zhang, Benedict Chien
  • Publication number: 20160295234
    Abstract: Disclosed is a low-complexity and yet efficient lossy method to compress distortion information for motion estimation, resulting in significant reduction in needed storage capacity. A system for implementing the method and a computer-readable medium for storing the method are also disclosed. The method includes determining and storing a distortion value for each trial motion vector in a plurality of trial motion vectors. Each trial motion vector specifies a position of a search region relative to a reference frame. The method further includes compressing each of the distortion values as a fixed number of bits based upon a minimum distortion value amongst the stored distortion values, and re-storing each compressed distortion value in place of its uncompressed value.
    Type: Application
    Filed: April 6, 2015
    Publication date: October 6, 2016
    Applicant: ATI TECHNOLOGIES ULC
    Inventors: Khaled Mammou, Ihab M. A. Amer, Gabor Sines, John-Paul A. Compagnone, Gerald SC. Chan, Ying Luo, Edward A. Harold, Lei Zhang, Benedict Chien
  • Publication number: 20160134865
    Abstract: An apparatus and methods for controlling power consumption in video encoding obtain, before motion estimation is performed on an image frame to be encoded, information regarding an amount of the image frame to be encoded that is static with respect to a previously encoded image frame. The apparatus and methods adjust power consumption of the video encoder based on the obtained information regarding the amount of the image frame to be encoded that is static.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 12, 2016
    Applicant: ATI Technologies ULC
    Inventors: Ihab M.A. Amer, Khaled Mammou, Benedict Chien, Lei Zhang, Stephen A. J. Bagshaw, Naveed A. Gazi, Zhiqi Hao, Ping Chen, Li Baochun, Syed Hussain