Signal transmission system

Details Signal transmission system Signal transmission system

1986-06-26

1987-03-31

Griffin, Robert L.

Telecommunications

Transmitter and receiver at separate stations

Short range rf communication

455121, 1284206, H04B 500, H04R 2500

Patent

active

046548807

ABSTRACT:
A signal transmission system for transmitting a signal across a barrier. A radio frequency receiver as coupled to a receiving resonant antenna. A transmitting resonant antenna coupled to a radio frequency transmitter on the other side of the barrier. The resonant frequency of the receiving resonant antenna is relatively close to the resonant frequency of the transmitting resonant antenna. The radio frequency transmitter has an oscillator having a frequency of oscillation driving a resonant load which includes the transmitting resonant antenna and its inductive coupling with the receiving resonant antenna. The frequency of oscillation of the oscillator of the radio frequency transmitter being at least partially determined by the resonant frequency of the resonant load which it drives.

REFERENCES:
patent: 3355667 (1967-11-01), Bevene
patent: 3500416 (1966-06-01), Ellsworth
patent: 3569968 (1971-03-01), Love
patent: 3656132 (1972-04-01), Brumbelow
patent: 3806831 (1972-04-01), Kleinberg
patent: 4357497 (1982-11-01), Hochmair et al.
patent: 4441210 (1984-04-01), Hochmair et al.

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