Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2007-03-06
2007-03-06
Wu, Daniel (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S539100, C340S870030, C340S010100
Reexamination Certificate
active
10901489
ABSTRACT:
Disclosed are systems and methods for utilizing a plurality of RFID readers as proximity sensors to detect one or more RFID tagged assets. In one embodiment, an array of RFID readers provides a coverage area and polls one or more tagged assets at a predetermined interval. If a tagged asset is removed from the coverage area, it will not be able to respond to the next RFID-reader poll, thereby indicating that it has been removed from the coverage area. One or more of the RFID readers may then provide a notification of this fact. In another embodiment, one or more RFID readers operating in combination with one or more RFID tags can be used to detect whether expendable items should be replaced, or whether a device should be allowed to be activated.
REFERENCES:
patent: 5949335 (1999-09-01), Maynard
patent: 5999091 (1999-12-01), Wortham
patent: 6040774 (2000-03-01), Schepps
patent: 6263440 (2001-07-01), Pruett et al.
patent: 6366242 (2002-04-01), Boyd et al.
patent: 6593885 (2003-07-01), Wisherd et al.
patent: 6609656 (2003-08-01), Elledge
patent: 6681989 (2004-01-01), Bodin
patent: 6696954 (2004-02-01), Chung
patent: 6714121 (2004-03-01), Moore
patent: 6724308 (2004-04-01), Nicholson
patent: 6734797 (2004-05-01), Shanks et al.
patent: 6784789 (2004-08-01), Eroglu et al.
patent: 6967563 (2005-11-01), Bormaster
patent: 7046147 (2006-05-01), Stigall
Crowell & Moring
Previl Daniel
Sony Corporation
Sony Electronics Inc.
Wu Daniel
LandOfFree
Systems and methods for zone security does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Systems and methods for zone security, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systems and methods for zone security will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3740826