Device for data carrier detection
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United States of America Patent
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Issued Date -
Sep 28, 2006
app pub date -
Mar 23, 2006
filing date -
Mar 24, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A device for detection of the lateral position of a data carrier (2, 3) has a scanning unit (1) to read out data deposited on the data carrier by means of radio-frequency signals. For the detection of the position of the data carrier (2, 3) on the one or other side of an antenna pair (A1, A2), the scanning unit (1) has a circuit to determine the modulation depth (T1, T2) of the signals received from the data carrier (2, 3) by the two partial antennae (A1, A2).
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