Research/Patents/US 5268875
US 5268875

ACOUSTIC DECOY

Assignee

Filed

May 11, 1967

Granted

Dec 7, 1993

Location

Abstract

A sonar countermeasure comprising a decoy device that carries apparatus foreceiving, processing and transmitting sonar signals. Processing apparatus includes magnetic tape storage, staggered record and read heads and time varying partial erase heads which produce realistic "echo" of received sonar search signals.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jan 5, 1983

Rescinded

Mar 26, 1993

Duration

10 years, 2 months

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records