Communications – electrical: acoustic wave systems and devices – Echo systems – Returned signal used for control
Patent
1971-09-27
1991-01-01
Tarcza, Thomas H.
Communications, electrical: acoustic wave systems and devices
Echo systems
Returned signal used for control
367 99, 367113, G01S 1500
Patent
active
049823841
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.
REFERENCES:
patent: 2467368 (1949-04-01), Batchelder
patent: 2912671 (1959-11-01), Hayes
patent: 2965876 (1960-12-01), Meunier et al.
Pipkin Edward L.
Salsman Garrett G.
Becker John
David Harvey
Pihulic Daniel T.
Sheinbein Sol
Tarcza Thomas H.
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