Method of and apparatus for acquiring data of dynamic...

Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle

Reexamination Certificate

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Details

C340S445000, C340S870010, C340S447000

Reexamination Certificate

active

07026977

ABSTRACT:
For acquiring data of dynamic physical processes via a radio link, a transponder antenna (17) is excited by an electromagnetic exciting wave at the resonance frequency of the transponder antenna (17), and a back-scattered electromagnetic sensor wave which is modulated by a sensor (16) having an electrical impedance depending on the data to be acquired is received and analyzed. The sensor (16) is directly connected to the transponder antenna (17) such that the sensor changes the electrical impedance of the transponder antenna (17) with every variation of the data to be acquired. The electromagnetic wave which is back-scattered by the transponder antenna (17) is received as the sensor wave at the same time as the transponder antenna (17) is excited by the exciting wave.

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patent: WO 02/40331 (2002-05-01), None

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