Patents by Inventor Brett D. Castile

Brett D. Castile 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: 5150336
    Abstract: A Frequency Dispersive Transmitting Array (30) for propagating composite e energy (10) emulates narrow-band beams (20) of different frequencies which can be simultaneously radiated in all directions, or in any subset of directions, relative to an array (42) of radiating elements (32) because of the addition and cancellation of components of wave energy (10) radiated, is disclosed. A signal source (34) provides input signals (36), having frequencies which may be acoustic or electromagnetic, which are coupled by feedline (37) to radiating elements (32) through a plurality of time delay devices (38). Each one of time delay devices (38) is interposed between successive ones of radiating elements (32) and delays emission of replicas of signals (36) therefrom by a time delay .tau..sub.0 which is a multiple of the period of the dominant frequency radiated in a direction broadside to the array.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: September 22, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Shelby F. Sullivan, Frank E. Gordon, Brett D. Castile
  • Patent number: 5117396
    Abstract: An air deployable, volumetric hydrophone array uses three horizontal booms adiating from a central hub suspended at the array operating depth. Loose lines of hydrophones are hung from pairs of points on the boom structure and hang in arcs approximating catenaries.
    Type: Grant
    Filed: February 5, 1986
    Date of Patent: May 26, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Brett D. Castile, Shelby F. Sullivan
  • Patent number: 4418404
    Abstract: An apparatus and method of transmitting and receiving information underwa assure improved performance characteristics. Modulating a carrier and appropriately filtering it allows the transmission of only single sideband signals or a carrier along with single sideband signals to increase the range at reduced power consumption levels. Demodulating incoming signals can be done synchronously (when the carrier is present) or asynchronously (only single sideband signals) to extract the information. When a number of carriers are modulated and, simultaneously, are transmitted and received, the system's reliability is enhanced.
    Type: Grant
    Filed: October 1, 1981
    Date of Patent: November 29, 1983
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Alan Gordon, Stanley J. Watson, Steven J. Cowen, Gerald Mackelburg, Brett D. Castile