Multiple protocol transponder

Details Multiple protocol transponder Multiple protocol transponder

H - Electricity

04

B

H04B 1/59 (2006.01) G08G 1/017 (2006.01) H04L 29/06 (2006.01)

Patent

CA 2307361

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. Therealter 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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