Inductively coupled wireless system and method
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United States of America Patent
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Jul 23, 2002
Grant Date -
N/A
app pub date -
Apr 2, 1999
filing date -
Apr 2, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A short range inductively coupled wireless communication system employs analog frequency modulation of a high frequency carrier and magnetic coupling between a transmitting antenna and a receiving antenna. A transmitter coupled to the transmitting antenna modulates multiple high-fidelity analog audio signals and digital control messages onto separate high frequency ('HF') carriers. The electric field portion of the transmitted electromagnetic field is substantially eliminated during transmission, while the magnetic field portion is substantially unaffected. The receiving antenna is coupled to a demodulator which reproduces the audio frequency signals and decodes control messages sent by the transmitter.
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