Patents by Inventor Philip L. Sullivan

Philip L. Sullivan 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).

  • Monopulse tracking apparatus and method of operating same
    Patent number: 5014064
    Abstract: A method of processing in a two-channel monopulse receiver and processor is shown to include the steps of: (a) forming composite signals equal to [S+(p+jy)] and [S-(p+jy)] where S in a monopulse sum signal and p and y are, respectively, pitch and yaw error signals; (b) alternately passing the composite signals through a two-channel amplifier; and (c) separating the components in the resulting amplified composite signals for conventional monopulse processing and smoothing to eliminate the effects of any imbalance (in phase or amplitude) between the channels in the two-channel amplifier.
    Type: Grant
    Filed: July 10, 1989
    Date of Patent: May 7, 1991
    Assignee: Raytheon Company
    Inventors: George R. Spencer, Bernard J. Thompson, Malcolm E. Skinner, Philip L. Sullivan
  • Compensated automatic gain control
    Patent number: 4185251
    Abstract: Circuitry for compensating for the effects of changes in ambient temperature on an automatic gain control arrangement in a missile-borne receiver is shown to include an operational amplifier responsive only to the level of the output signal from an automatic gain detector and amplifier, such end being effected by using temperature sensitive elements in the input and feedback circuits of the operational amplifier.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: January 22, 1980
    Assignee: Raytheon Company
    Inventors: William C. Brown, Jr., Paul G. Crete, Philip L. Sullivan, James Williamson