RFID reader

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9412213
APP PUB NO 20150154820A1
SERIAL NO

14559316

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Embodiments of the invention relate to the field of RFID (radio frequency identification). Some particularly preferred embodiments relate to a high-Q, so-called “full duplex” (FDX) RFID Reader. An RFID tag reader, the reader comprising: an electromagnetic (EM) field generator for generating an electromagnetic (EM) field for modulation by said tag, said modulation comprising modulated load of said EM field by said tag; a detector system responsive to fluctuations in strength of said EM field at said reader; a negative feedback system responsive to said detector system to provide a control signal for said EM field generator for controlling said EM field generator to reduce said detected fluctuations; and a demodulator responsive to said control of said EM field to demodulate said EM field modulation by said tag.

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Patent Owner(s)

Patent OwnerAddress
SUREFLAP LIMITEDCAMBRIDGESHIRE CB23 8AR

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hill, Nicholas Patrick Roland Cambridge, GB 28 503

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