Patents by Inventor Robert E. Wetmore

Robert E. Wetmore 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 and apparatus for synchronizing multiple transmitters
    Patent number: 9635630
    Abstract: A method and apparatus for synchronizing multiple transmitters is disclosed. A global time reference is used to synchronize the arrival of data from a plurality of secondary transmitters in a receiver station. In one embodiment, the global time reference is provided by a GPS satellite, and may also be used to synchronize the carriers of the signals received at the receiver station from each of the plurality of transmitters. In one embodiment, a pilot signal used for ATSC applications is added by the secondary transmitters.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: April 25, 2017
    Assignee: FOX DIGITAL ENTERPRISES, INC.
    Inventor: Robert E. Wetmore
  • METHOD AND APPARATUS FOR SYNCHRONIZING MULTIPLE TRANSMITTERS
    Publication number: 20150139221
    Abstract: A method and apparatus for synchronizing multiple transmitters is disclosed. A global time reference is used to synchronize the arrival of data from a plurality of secondary transmitters in a receiver station. In one embodiment, the global time reference is provided by a GPS satellite, and may also be used to synchronize the carriers of the signals received at the receiver station from each of the plurality of transmitters. In one embodiment, a pilot signal used for ATSC applications is added by the secondary transmitters.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 21, 2015
    Applicant: Fox Digital Enterprises, Inc.
    Inventor: Robert E. Wetmore
  • Method and apparatus for synchronizing multiple transmitters
    Patent number: 9014732
    Abstract: A method and apparatus for synchronizing multiple transmitters is disclosed. A global time reference is used to synchronize the arrival of data from a plurality of transmitters in a receiver station.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: April 21, 2015
    Assignee: Fox Digital Enterprises, Inc.
    Inventor: Robert E. Wetmore
  • Method and apparatus for synchronizing multiple transmitters
    Patent number: 8942742
    Abstract: A method and apparatus for synchronizing multiple transmitters is disclosed. A global time reference is used to synchronize the arrival of data from a plurality of secondary transmitters in a receiver station. In one embodiment, the global time reference is provided by a GPS satellite, and may also be used to synchronize the carriers of the signals received at the receiver station from each of the plurality of transmitters. In one embodiment, a pilot signal used for ATSC applications is added by the secondary transmitters.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: January 27, 2015
    Assignee: Fox Digital Enterprises, Inc.
    Inventor: Robert E. Wetmore
  • METHOD AND APPARATUS FOR SYNCHRONIZING MULTIPLE TRANSMITTERS
    Publication number: 20120122500
    Abstract: A method and apparatus for synchronizing multiple transmitters is disclosed. A global time reference is used to synchronize the arrival of data from a plurality of secondary transmitters in a receiver station. In one embodiment, the global time reference is provided by a GPS satellite, and may also be used to synchronize the carriers of the signals received at the receiver station from each of the plurality of transmitters. In one embodiment, a pilot signal used for ATSC applications is added by the secondary transmitters.
    Type: Application
    Filed: April 1, 2011
    Publication date: May 17, 2012
    Applicant: FOX DIGITAL ENTERPRISES, INC.
    Inventor: Robert E. Wetmore
  • METHOD AND APPARATUS FOR SYNCHRONIZING MULTIPLE TRANSMITTERS
    Publication number: 20120122499
    Abstract: A method and apparatus for synchronizing multiple transmitters is disclosed. A global time reference is used to synchronize the arrival of data from a plurality of transmitters in a receiver station.
    Type: Application
    Filed: November 16, 2010
    Publication date: May 17, 2012
    Applicant: Twentieth Century Fox Film Corporation
    Inventor: Robert E. Wetmore
  • Projection screen
    Patent number: 4750808
    Abstract: A projection screen including a rectangular film having a back surface, a front surface and a periphery, a support frame and chamber connected to the periphery of the film for defining the shape of the periphery of the film, a device for creating a pressure differential between the front surface and the back surface of the film, a sensor for sensing the position of the film and indirectly sense the pressure differential on the film and a controller for controlling the device for creating the pressure differential in response to the sensor such that the position of the film is a predetermined position as a result of some pressure differential whereby the shape of the film is set by the shape of the frame which is connected to the periphery of the film and by the predetermined position of the film resulting from the pressure differential.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: June 14, 1988
    Assignee: Sigma Design Group
    Inventors: Gerald C. Nash, Glenn M. Berggren, Robert E. Wetmore, Donald R. Stewart