Patents by Inventor Bruce W. Barratt

Bruce W. Barratt 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).

  • Multi-beam antenna
    Patent number: 6323822
    Abstract: A modified offset parabolic antenna is disclosed which provides improved gain when receiving satellite broadcasts from geosynchronous transmission sources spaced substantially 10 degrees apart. The surface of the reflector is defined by a Zernike expansion mapped to a unit circle. The values of the parameters of the Zernike expansion are selected to provide a shaped reflector surface which focuses beams from the three separate sources onto three focal points such that the gain of the antenna is maximized. A peak beam gain for an offset beam of substantially 33.9 dBi has been achieved.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: November 27, 2001
    Assignee: Channel Master LLC
    Inventors: Scott J. Cook, Bruce W. Barratt
  • Multi-beam antenna
    Publication number: 20010024176
    Abstract: A modified offset parabolic antenna is disclosed which provides improved gain when receiving satellite broadcasts from geosynchronous transmission sources spaced substantially 10 degrees apart. The surface of the reflector is defined by a Zernike expansion mapped to a unit circle. The values of the parameters of the Zernike expansion are selected to provide a shaped reflector surface which focuses beams from the three separate sources onto three focal points such that the gain of the antenna is maximized. A peak beam gain for an offset beam of substantially 33.9 dBi has been achieved.
    Type: Application
    Filed: February 5, 2001
    Publication date: September 27, 2001
    Applicant: CHANNEL MASTER LLC
    Inventors: Scott J. Cook, Bruce W. Barratt
  • Multi-beam antenna
    Patent number: 6222495
    Abstract: A shaped offset parabolic antenna is disclosed which provides improved gain when receiving satellite broadcasts from geosynchronous transmission sources spaced substantially 10 degrees apart. The surface of the reflector is defined by a Zernike expansion mapped to a unit circle. The values of the parameters of the Zernike expansion are selected to provide a shaped reflector surface which focuses beams from the three separate sources onto three focal points such that the gain of the antenna is maximized. A peak beam gain for an offset beam of substantially 33.9 dBi has been achieved.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: April 24, 2001
    Assignee: Channel Master LLC
    Inventors: Scott J. Cook, Bruce W. Barratt