Identification system

Details Identification system Identification system

1986-01-07

1989-04-04

Trafton, David L.

Registers

Coded record sensors

Particular sensor structure

235449, 235451, 235492, 34082572, 34082554, G06K 700

Patent

active

048188557

ABSTRACT:
A remotely powered portable member having circuitry for storing and transmitting coded information. A first coupling device is provided for receiving a signal transmitted via one of a magnetic field and an electric field. A power circuit is connected to the first coupling device for deriving operating power from the received signal for use by the circuitry. A second coupling device is connected to the circuitry for transmitting coded information stored by the circuitry via the other one of the magnetic field and electric field.

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