Full duplex modulated backscatter system
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United States of America Patent
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Jul 15, 1997
Grant Date -
N/A
app pub date -
Jun 19, 1995
filing date -
Jun 19, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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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