Signal transmission system

Details Signal transmission system Signal transmission system

H - Electricity

04

R

349/28, 325/4

H04R 25/00 (2006.01) A61F 2/02 (2006.01) H04B 5/00 (2006.01)

Patent

CA 1226624

ABSTRACT OF THE DISCLOSURE A signal transmission system (10) for transmitting a signal across a barrier (16). A radio frequency receiver (18) as coupled to a receiving resonant antenna (20). A transmitting resonant antenna (14) is coupled to a radio frequency transmitter on the other side of the barrier (16). The resonant frequency of the receiving resonant antenna (20) is relatively close to the resonant frequency of the transmitting resonant antenna (14). The radio frequency transmitter (12) has an oscillator (50-72) having a frequency of oscillation driving a resonant load which includes the transmitting resonant antenna (14) and its inductive coupling with the receiving resonant antenna (20). The frequency of oscillation of the oscillator (50-72) of the radio frequency transmitter (12) being at least partially determined by the resonant frequency of the resonant load which it drives.

466070

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