Multiple protocol transponder

Details Multiple protocol transponder Multiple protocol transponder

2006-03-21

2006-03-21

Pezzlo, John (Department: 2662)

Multiplex communications

Diagnostic testing

Determination of communication parameters

C370S337000, C370S347000, C370S466000

Reexamination Certificate

active

07016311

ABSTRACT:
A multi protocol transponder for a communications network having a antenna for receiving a first RF signal transmitted according to a communications protocol and a detector for identifying the communications protocol from the first RF signal. A protocol controller is provided for executing the identified communications protocol to generate a second RF signal. Thereafter an antenna transmits the second RF signal according to the communications protocol either by active transmission or modulated backscatter. The transponder may implement a variety of wide area and localized lane based protocols for Automatic Vehicle Identification systems such as CVO and Toll systems.

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