Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-07-17
2009-06-23
Nguyen, Hung T. (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S539100, C340S541000, C340S551000, C340S552000, C340S572700, C340S572800, C340S010100
Reexamination Certificate
active
07551080
ABSTRACT:
A system and method for controlling door-mounted or door-embedded antennas. An antenna, for example, an EAS or an RF antenna, sends interrogation signals which are received by markers located on merchandise within a range of detection, i.e., an “interrogation zone”. Antennas that are mounted on or embedded in a door move along with the motion of the door. Thus, the interrogation zone covered by the antenna's magnetic field is continually changing with the movement of the door. The system and method of the present invention control door-mounted antennas by monitoring the motion of the door upon which the antenna is mounted, and by adjusting the size and breadth of the interrogation zone generated by the antenna accordingly. A processor within a control unit receives positional signals from a position sensor mounted on the moving door, determines whether the interrogation zone should be increased, decreased, shut off, or maintained, and transmits signals to the antenna or to an alarm device, the signal containing interrogation zone modification instructions.
REFERENCES:
patent: 4009476 (1977-02-01), Lutz
patent: 4394645 (1983-07-01), Humble et al.
patent: 5276430 (1994-01-01), Granovsky
patent: 6114956 (2000-09-01), Van Genechten
patent: 6549119 (2003-04-01), Turner
patent: 7075441 (2006-07-01), Tsukamoto
patent: 2005/0046572 (2005-03-01), Hader
patent: 9416490.8 (1995-02-01), None
Written Opinion of the International Search Report dated Feb. 1, 2008 for PCT/US2007/016244, International Filing Date Jul. 16, 2007 consisting of 12-pages.
Bergman Adam Scott
Schneider Jack Howard
Christopher & Weisberg P.A.
Nguyen Hung T.
Sensormatic Electronics Corporation
LandOfFree
Control for embedded and door-mounted antennas does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control for embedded and door-mounted antennas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control for embedded and door-mounted antennas will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4148071