Machine-readable tag, selectable extension antennas for use...

Details Machine-readable tag, selectable extension antennas for use... Machine-readable tag, selectable extension antennas for use...

2007-10-09

2007-10-09

Mullen, Thomas (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S010100, C340S505000, C343S742000, C343S879000

Reexamination Certificate

active

11151310

ABSTRACT:
An intelligent antenna system for extending the effective communication range of a machine-readable passive tag. The system includes intelligence that allows one of a plurality of extension antennas to be active at any given time in order to both facilitate communications and safeguard the system. The machine-readable tag and antenna system may be embedded in a structure. In a further embodiment, the system may include multiple passive tags that are active in correspondence to a display or advertisement currently being exhibited. The system includes means for operatively coupling a designated machine-readable tag to the embedded antenna network previously described.

REFERENCES:
patent: 6236315 (2001-05-01), Helms et al.
patent: 6259369 (2001-07-01), Monico
patent: 6839035 (2005-01-01), Addonisio et al.
patent: 7005968 (2006-02-01), Bridgelall
patent: 2004/0046663 (2004-03-01), Jesser
patent: 2005/0086264 (2005-04-01), Masuda
patent: 2005/0178832 (2005-08-01), Higuchi
patent: 2002162918 (2002-06-01), None
Klaus Finkenzeller, “RFID Handbook, Radio-Frequency Identification Fundamentals and Applications”; pp. 35-36; 103-104, John Wiley & Sons Ltd., ISBN 0-471-98851-0 (1999).

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