Codable electronic devices
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United States of America Patent
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Jul 13, 1993
Issued Date -
N/A
app pub date -
May 3, 1991
filing date -
Mar 9, 1989
priority date (Note) -
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status (Latency Note)
Importance
Abstract
Pulses of a carrier signal supplied to an input circuit of a codable electronic device, e.g. a transponder tag, are divided by a chain to provide a logic signal, the value of which depends on the length of the pulse, the logic signal only being entered into a data store upon termination of the pulse. The logic signal is entered by a reset signal from output of the input circuit.
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