Full duplex modulated backscatter system

Details Full duplex modulated backscatter system Full duplex modulated backscatter system

H - Electricity

04

B

H04B 7/22 (2006.01) G06K 7/00 (2006.01)

Patent

CA 2177416

A duplex radio communication system includes an Interrogator which generates a first modulated signal by modulating a first information signal onto a radio carrier signal. The Interrogator transmits the first modulated signal to at least one remote Tag of the system. The remote Tag receives and processes the first modulated signal received at its Antenna. A Backscatter Modulator uses a second information signal to modulate the reflection of the first modulated signal from the Antenna, the reflected signal being a second modulated signal. The Interrogator receives and demodulates the second modulated signal to obtain the second information signal.

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