Signal transmission system
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United States of America Patent
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-
Mar 31, 1987
Issued Date -
N/A
app pub date -
Jun 26, 1986
filing date -
Dec 9, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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