Patents Assigned to The United States of America as represented by the Sceretary of the Navy
  • High noise suppression microphone
    Patent number: 6347147
    Abstract: A noise suppressing microphone employing a thin film of piezoelectric material sandwiched between two conductive layers, one of which is laminated to a flat inflexible laminate. The sandwich is embedded in a mechanical sound filter except for one exposed face which is placed in contact with a user's body for sound pickup.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: February 12, 2002
    Assignee: The United States of America as represented by the Sceretary of the Navy
    Inventors: Edward F. Downs, Jr., Kevin M. Venturella