Patents by Inventor Jonathan Yu Han Liu

Jonathan Yu Han Liu 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).

  • Computation of processor clock frequency ratios
    Patent number: 7673166
    Abstract: An embodiment of the invention provides an apparatus for computation of processor clock frequency ratios in a multi-processor system. The apparatus includes a computation engine configured to determine a processor clock frequency ratio by reading counter values of a first counter and of a second counter within a frequency ratio computation interval, and configured to determine a value of the second counter at an end of a frequency ratio valid interval where the frequency ratio is applied, wherein the frequency ratio valid interval is subsequent to the frequency ratio computation interval, and wherein the frequency ratio valid interval does not overlap the frequency ratio computation interval.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: March 2, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jonathan Yu Han Liu, James Mankovich
  • Computation of processor clock frequency ratios
    Publication number: 20080098252
    Abstract: An embodiment of the invention provides an apparatus for computation of processor clock frequency ratios in a multi-processor system. The apparatus includes a computation engine configured to determine a processor clock frequency ratio by reading counter values of a first counter and of a second counter within a frequency ratio computation interval, and configured to determine a value of the second counter at an end of a frequency ratio valid interval where the frequency ratio is applied, wherein the frequency ratio valid interval is subsequent to the frequency ratio computation interval, and wherein the frequency ratio valid interval does not overlap the frequency ratio computation interval.
    Type: Application
    Filed: October 24, 2006
    Publication date: April 24, 2008
    Inventors: Jonathan Yu Han Liu, James Mankovich