TERMINAL OF RADIO-FREQUENCY TRANSMISSION/RECEPTION BY INDUCTIVE COUPLING
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United States of America Patent
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N/A
Issued Date -
Oct 1, 2009
app pub date -
Mar 27, 2009
filing date -
Mar 31, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method and a device of transmission/reception by inductive coupling including circuitry for generating an AQ.C. signal intended to drive an oscillating circuit and circuitry intended to modulate the impedance of the oscillating circuit when data is to be transmitted, the oscillating circuit including an inductive element forming an antenna in parallel with a first capacitive element; and at least one second capacitive element in series with a switch, all in parallel with the first capacitive element and the antenna, the modulating circuitry being connected between the terminals of the antenna and the circuitry for generating the AQ.C. signal being connected to the junction point of the second capacitive element and of the switch.
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