Patents by Inventor Sean Patrick McPeak

Sean Patrick McPeak 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).

  • Automated calibration in a projection display apparatus
    Patent number: 6671003
    Abstract: A method of operating a photo sensor in a projection display device comprises the steps of, illuminating the sensor with a projected image. Detecting a signal from the sensor responsive to the illumination by the projected image. Changing a threshold value of the detector until the signal detection ceases. Storing a value representative of the threshold value which terminated detection of the signal from the sensor.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: December 30, 2003
    Assignee: Thomson Licensing S.A.
    Inventors: John Barrett George, Sean Patrick McPeak, Angela Renee Burnett
  • Power supply with synchronized power on transition
    Patent number: 6538419
    Abstract: A power supply operates in a run mode of operation and in a stand-by, burst mode of operation. When, for example, a user initiates a power-on request command, an on/off control signal is applied to an input terminal of a microprocessor. The microprocessor monitors an end time of a dead time interval of a burst mode cycle and generates a synchronized control signal for turning on a switch. The switch turns on immediately after the end of the dead time interval. The turned on switch couples a run mode load to a filter capacitor of the power supply.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: March 25, 2003
    Assignee: Thomson Licensing S.A.
    Inventors: Rick Carl Allen, Gautam Nath, Sean Patrick McPeak, Joseph Curt Stevens