Patents by Inventor Christoph Lameter

Christoph Lameter 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: 7716513
    Abstract: A scaling factor used in time interpolation calculations is tuned so as to compensate for clock sources that generate timer interrupts both slower and faster than expected. The scaling factor is decreased when the timer interrupts are late and the scaling factor is increased when the timer interrupts are early. By being able to account for timer interrupts that are generated too early, time skips are minimized. The adjusted scaling factor is used in calculating system time and interpolation offset values.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: May 11, 2010
    Assignee: Graphics Properties Holdings, Inc.
    Inventor: Christoph Lameter
  • Publication number: 20070055843
    Abstract: A predictive prefaulting method reduces the number of page faults and accelerates the process of mapping virtual memory to physical memory. A single page fault results in the mapping of one virtual memory page or, where a contiguous block of virtual memory is linearly accessed, it may result in the mapping of two, four, or eight virtual memory pages. In this latter case, a single mapping occurs in response to the initial page fault, but afterwards, multiple mappings (2, 4, 8, or more) occur in response to each of the subsequent page faults. The number of mappings doubles until a preset limit is reached.
    Type: Application
    Filed: September 2, 2005
    Publication date: March 8, 2007
    Inventor: Christoph Lameter
  • Publication number: 20070050528
    Abstract: A scaling factor used in time interpolation calculations is tuned so as to compensate for clock sources that generate timer interrupts both slower and faster than expected. The scaling factor is decreased when the timer interrupts are late and the scaling factor is increased when the timer interrupts are early. By being able to account for timer interrupts that are generated too early, time skips are minimized. The adjusted scaling factor is used in calculating system time and interpolation offset values.
    Type: Application
    Filed: August 11, 2006
    Publication date: March 1, 2007
    Inventor: Christoph Lameter