Signal transmitting and receiving device

Details Signal transmitting and receiving device Signal transmitting and receiving device

1975-05-19

1977-04-26

Farley, Richard A.

Communications: electrical

Selective

Having electron beam device

340 5R, 340171PF, H04B 1100

Patent

active

040204499

ABSTRACT:
A signal to be transferred comprises a plurality of patterns each including a time region containing a plurality of frequency signals and a time region containing no frequency signal. When a signal to be transmitted is given in the form of numeric information, this signal is automatically patterned by a transmitter unit to provide a period containing predetermined frequency signals and a period containing no frequency signal. A receiver unit reproduces the sequentially transmitted frequency signals on the basis of the reception of the first transmitted frequency signal.

REFERENCES:
patent: 3289152 (1966-11-01), McIlwraith et al.
patent: 3305634 (1967-02-01), Rusicik
patent: 3530434 (1970-09-01), Stites et al.
patent: 3723956 (1973-03-01), Carman
patent: 3860913 (1975-01-01), Weeks, Jr. et al.
patent: 3882466 (1975-05-01), Poorvin
patent: 3939465 (1976-02-01), Helton et al.
"Diver Telemetry System", Sperry Eng. Rev., vol. 19, No. 3, 1966, pp. 25-30.

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