Patents by Inventor Jacques Mahe

Jacques Mahe 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).

  • Method, apparatus and computer program product for synchronizing presentation of digital video data with serving of digital video data
    Patent number: 7570304
    Abstract: The present invention provides a method for matching the rate of presentation of digital video data at a receiver/client with the rate the server is serving the data without the need of a voltage control oscillator or other hardware. An embodiment of the invention compares the presentation time at the receiver with the server elapsed time estimated from timestamp values on the served data. When the presentation time and the server elapsed time differ by an unacceptably large amount, an adjustment is made to the audio data stream to re-synchronize the presentation time with the elapsed time, which effectively also synchronizes the overall presentation rate with the overall server rate. The video data stream is then synchronized to the adjusted audio stream. The video data stream and audio data stream are converted to analog signals for presentation.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: August 4, 2009
    Assignee: Sigma Designs, Inc.
    Inventors: Vincent Trinh, Michael Ignaszewski, Jacques Mahe
  • Controlling consumption of time-stamped information by a buffered system
    Patent number: 6687770
    Abstract: Apparatus and methods, and computer program products are disclosed that accepts time-stamped information and feeds that information to a buffered system that consumes the information. The invention accepts an initial interval of the time-stamped information and when a pre-fill limit is reached, starts consumption of the data. The pre-fill limit is determined by monitoring the time stamp on the data that is ready to be consumed and the time stamp of data that has just been accepted. The difference between these time stamps provides an interval that represents the amount of time related to the data associated with the time-stamped information. Once the interval exceeds a pre-fill limit, the invention allows the buffered time-stamped information to be consumed. As the time-stamped information is consumed, the invention monitors the interval (other embodiments use the time stamp of data that is in the process of being consumed, or data that has just been consumed).
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: February 3, 2004
    Assignee: Sigma Designs, Inc.
    Inventors: Jacques Mahe, Vincent Trinh, Michael Ignaszewski
  • Method, apparatus and computer program product for synchronizing presentation of digital video data with serving of digital video data
    Patent number: 6654956
    Abstract: The present invention provides a method for matching the rate of presentation of digital video data at a receiver/client with the rate the server is serving the data without the need of a voltage control oscillator or other hardware. An embodiment of the invention compares the presentation time at the receiver with the server elapsed time estimated from timestamp values on the served data. When the presentation time and the server elapsed time differ by an unacceptably large amount, an adjustment is made to the audio data stream to re-synchronize the presentation time with the elapsed time, which effectively also synchronizes the overall presentation rate with the overall server rate. The video data stream is then synchronized to the adjusted audio stream. The video data stream and audio data stream are converted to analog signals for presentation.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: November 25, 2003
    Assignee: Sigma Designs, Inc.
    Inventors: Vincent Trinh, Michael Ignaszewski, Jacques Mahe