Communications – electrical: acoustic wave systems and devices – Transponders
Patent
1960-12-30
1980-05-13
Farley, Richard A.
Communications, electrical: acoustic wave systems and devices
Transponders
367 6, 367132, 367134, H04B 159
Patent
active
042031605
ABSTRACT:
2. A method by which a submarine while deeply submerged in the sea may receive a message from a remote station without disclosing to others the position of the submarine, which comprises transmitting from said remote station into the atmosphere message information modulated on electromagnetic radiant energy, intercepting said radiant energy at a plurality of separated and widely dispersed relay stations on the surface of the sea, extracting the message information from the electromagnetic energy and transmitting acoustic wave energy modulated by said message information from each of said relay stations into the sea, locating said submerged submarine in message receiving range of one of said relay stations and detecting the acoustic wave energy modulated by the message information aboard said submarine.
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patent: 2431018 (1947-11-01), Bailey et al.
patent: 2838741 (1958-06-01), Mason
patent: 3092803 (1963-06-01), Wolff et al.
Kiernan, Electronics, Oct. 1947, pp. 96-98.
Miller, IRE Trans. on Comm. Systems, vol. CS-7, No. 4, Dec. 1959, pp. 2491.
Isaak, The Journal of the Acoustical Soc. of Amer., vol. 28, No. 4, Jul. 1956, pp. 556;557.
Farley Richard A.
Lall Prithvi C.
McGill Arthur A.
Sciascia Richard S.
The United States of America as represented by the Secretary of
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