Patents by Inventor Alexandre Lahaise

Alexandre Lahaise 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).

  • User selectable hardware zoom in a video display system
    Patent number: 7705864
    Abstract: A display controller system is controlled to provide a display surface zoom using hardware scaling from user input at the operating system, application program or hardware level. User input defining coordinates of a frame portion within a frame buffer memory is obtained, and a resolution of the zoom display device is determined. An aspect ratio of the zoom portion defined by the user input is adjusted to correspond to the zoom display device resolution. The display controller system is programmed to implement the display surface zoom to provide a full screen view of the zoom portion on the zoom display device. In the display controller system, the zoom portion of the frame buffer memory is scaled, converted into a display signal and output.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: April 27, 2010
    Assignee: Matrox Graphic Inc.
    Inventors: Kamran Ahmed, James Anglehart, Alexandre Lahaise, Jean Lapointe, Martin Pilot, Daniel T. Wood
  • User selectable hardware zoom in a video display system
    Publication number: 20060050090
    Abstract: A display controller system is controlled to provide a display surface zoom using hardware scaling from user input at the operating system, application program or hardware level. User input defining coordinates of a frame portion within a frame buffer memory is obtained, and a resolution of the zoom display device is determined. An aspect ratio of the zoom portion defined by the user input is adjusted to correspond to the zoom display device resolution. The display controller system is programmed to implement the display surface zoom to provide a full screen view of the zoom portion on the zoom display device. In the display controller system, the zoom portion of the frame buffer memory is scaled, converted into a display signal and output.
    Type: Application
    Filed: October 12, 2005
    Publication date: March 9, 2006
    Inventors: Kamran Ahmed, James Anglehart, Alexandre Lahaise, Jean Lapointe, Martin Pilot, Daniel Wood
  • Multiple display device display controller with video overlay and full screen video outputs
    Patent number: 6774912
    Abstract: Multiple independent displays from one graphics controller can be driven in a wide variety of modes using multiple display controllers. This invention incorporates a unique combination of enhancement building on a generic single multi-display graphics subsystem. Digital video is gaining vast popularity in the worldwide consumer, professional and commercial market. The applications of this invention cover all these market segments and include (but are not limited to) Digital Content Creation, Digital video playback, digital entertainment, DVD Authoring etc.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: August 10, 2004
    Assignee: Matrox Graphics Inc.
    Inventors: Kamran Ahmed, Alexandre Lahaise, Gilles Forest, Yves Tremblay, Lorne Trottier