Telecommunications – Radiotelephone system – Emergency or alarm communication
Reexamination Certificate
2006-12-12
2006-12-12
D'Agosta, Steve M. (Department: 2617)
Telecommunications
Radiotelephone system
Emergency or alarm communication
C455S404100, C455S456100, C455S456300, C455S456500, C455S456600, C455S457000, C455S521000, C701S200000, C701S207000, C701S213000
Reexamination Certificate
active
07149499
ABSTRACT:
A system dynamically discovers the geographic location of entities of a computer network. A network entity is configured to include a location determination engine and a radio frequency (RF) receiver unit. A plurality of RF base stations are disposed in the area proximate to the network entity. Each RF base station has a beacon for transmitting a radio frequency (RF) signal encoded with the location, e.g., the physical coordinates, of the respective RF base station and the time of transmission. The encoded RF signals are received by the RF receiver unit at the network entity and passed to the location determination engine, which uses the received information to compute its location. The location determination engine then reports its location by loading the computed location into a network message and transmitting that message to a central repository.
REFERENCES:
patent: 3702477 (1972-11-01), Brown
patent: 5289527 (1994-02-01), Tiedemann, Jr.
patent: 5604765 (1997-02-01), Bruno et al.
patent: 5659617 (1997-08-01), Fischer
patent: 6092096 (2000-07-01), Lewis
patent: 6236849 (2001-05-01), Reudink et al.
patent: 6266534 (2001-07-01), Raith et al.
patent: 6308134 (2001-10-01), Croyle et al.
patent: 6405047 (2002-06-01), Moon
patent: 6414950 (2002-07-01), Rai et al.
patent: 6580914 (2003-06-01), Smith
patent: 6611687 (2003-08-01), Clark et al.
patent: 6659947 (2003-12-01), Carter et al.
patent: 6677894 (2004-01-01), Sheynblat et al.
patent: 2001/0044310 (2001-11-01), Lincke
patent: 2002/0160745 (2002-10-01), Wang
Garmin, “About GPS”, copyrighted 1996-2006 (see last page of document), www.garmin.com/aboutgps, 3 pages.
Network-Based Application Recognition, Cisco Systems, Inc., (c) 1992-2001, pp. 1-40.
Dixon, Jonathan, Global Reference Navigation for Mobile Robots: Issues in Prtactical Implementation, Mobile Robot Navigation, May 27, 1997, pp. 1-8.
Dixon, J. and Henlich, O., Mobile Robot Navigation, Final Report, Jun. 10, 1997, pp. 1-28.
Davis, C. et al., A Means for Expressing Location Information in the Domain Name System, Network Working Group, Request For Comments: (RFC) 1876, Jan. 1996, pp. 1-15.
Whitaker, J., Radio Frequency Transmission Systems Design and Operation, (c) 1991, pp. i-ix and 375-379.
Grewal, M., Weill, L. and Andrews, A., Global Positioning Systems, Inertial Navigation, and Integration, (c) 2001, pp. iii-vii, 179-224 and 252-264.
Gai Silvano
Oran David R.
Cesari and McKenna LLP
Cisco Technology Inc.
D'Agosta Steve M.
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