Apparatus for contactless energy and data transmission for single coil and two-coil systems
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United States of America Patent
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-
Dec 5, 1995
Grant Date -
N/A
app pub date -
Nov 30, 1993
filing date -
Nov 30, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An inductor transmission path for energy and data from a write/read station onto, for example, a chip card is disclosed. A specific, vector-oriented phase modulation with two coils is disclosed, making it possible for the write/read station to use the same method to service different cards, i.e. those with one coil, or with a large coil or having two coils.
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