Terminal for contactless communication with portable objects
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United States of America Patent
Stats
-
Sep 23, 1997
Grant Date -
N/A
app pub date -
Nov 22, 1995
filing date -
Nov 22, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A terminal for contactless communication with portable objects comprises a wave pickup device responsive to the magnetic component of an electromagnetic field, and a receiver which cooperates with the wave pickup device to receive and amplify signals picked up thereby. The wave pickup device comprises at least two distinct and adjacently disposed wave pickup elements spaced apart by a predetermined gap, and a discriminator for deriving a discrimination signal from the signals picked up by each of the wave pickup elements during a given period. The discrimination signal indicates which one of the wave pickup elements has received a signal of greater amplitude.
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