Research/Patents/US 4982384
US 4982384

SPLIT BEAM SONAR

Assignee

Filed

Sep 27, 1971

Granted

Jan 1, 1991

Location

Abstract

A sonar system is disclosed that includes contiguously angularly disposed d oppositely rotated transmitting and receiving transducers for broadcasting an acoustic signal and for receiving target echoes thereof, respectively, at different angles from within overlapping zones thereof within an aqueous medium. A gated transmitter is employed to timely energize said transmitting transducer, and a gated target seeking receiver is employed to process the output signal of said receiving transducer. A cathode ray tube readout displays target signals from said receiver. A light sensitive probe produces an electrical output signal in response to a target signal displayed on said cathode ray tube which is used for gating the aforesaid transmitter and receiver in such manner as to accentuate the displayed target signal being probed at any given instant.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Oct 28, 1981

Rescinded

Sep 20, 1990

Duration

8 years, 10 months

Inventor

  • 1EDWARD L. PIPKIN

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