Identification system with a passive activator
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United States of America Patent
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-
Jun 4, 1996
Grant Date -
N/A
app pub date -
Sep 1, 1994
filing date -
Sep 1, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An identification system that employs a passive activator 320 to transmit an identification code. From a low frequency electromagnetic field, the passive activator derives AC voltage and converts it to DC pulses. The DC pulses energizes the activator in order to transmit the identification code within one of the DC pulses. A controller 100, upon receiving an authorized code, generates an output for activating a device.
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