Patents by Inventor Frederick Bruce MacLachlan Hoornstra

Frederick Bruce MacLachlan Hoornstra 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: 6954620
    Abstract: An RF power control system including a watchdog circuit for monitoring the power level of an RF signal about to be transmitted by an antenna and for monitoring the antenna beam scan angle and for adjusting and/or interrupting the RF signal in the event that the power level of the RF signal or the scan angle of the antenna beam exceed predetermined thresholds. The use of the watchdog circuit eliminates the need for stringent safety certification of a number of other subcomponents of the system and therefore significantly reduces the cost and time associated with obtaining regulatory certification of the system. In preferred forms, the watchdog circuit includes an enable input for allowing the watchdog circuit to be completely deactivated, and therefore transparent to the RF signal being generated.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: October 11, 2005
    Assignee: The Boeing Company
    Inventors: Phillip R. Rotta, Frederick Bruce MacLachlan Hoornstra
  • Publication number: 20040192247
    Abstract: An RF power control system including a watchdog circuit for monitoring the power level of an RF signal about to be transmitted by an antenna and for monitoring the antenna beam scan angle and for adjusting and/or interrupting the RF signal in the event that the power level of the RF signal or the scan angle of the antenna beam exceed predetermined thresholds. The use of the watchdog circuit eliminates the need for stringent safety certification of a number of other subcomponents of the system and therefore significantly reduces the cost and time associated with obtaining regulatory certification of the system. In preferred forms, the watchdog circuit includes an enable input for allowing the watchdog circuit to be completely deactivated, and therefore transparent to the RF signal being generated.
    Type: Application
    Filed: July 19, 2002
    Publication date: September 30, 2004
    Inventors: Phillip R. Rotta, Frederick Bruce MacLachlan Hoornstra