Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-05-22
2010-06-08
Appiah, Charles N (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S404200, C455S405000
Reexamination Certificate
active
07734298
ABSTRACT:
A technique for estimating the location of a wireless terminal at an unknown location in a geographic region is disclosed. The technique is based on the recognition that there are traits of electromagnetic signals that are dependent on topography, the receiver, the location of the transmitter, and other factors. For example, if a particular radio station is known to be received strongly at a first location and weakly at a second location, and a given wireless terminal at an unknown location is receiving the radio station weakly, it is more likely that the wireless terminal is at the second location than at the first location.
REFERENCES:
patent: 5293642 (1994-03-01), Lo
patent: 5404376 (1995-04-01), Dent
patent: 5542097 (1996-07-01), Ward et al.
patent: 5717406 (1998-02-01), Sanderford et al.
patent: 5873041 (1999-02-01), Ishii
patent: 6021125 (2000-02-01), Sakoda et al.
patent: 6026304 (2000-02-01), Hilsenrath et al.
patent: 6134448 (2000-10-01), Shoji et al.
patent: 6236365 (2001-05-01), LeBlance et al.
patent: 6236849 (2001-05-01), Reudink et al.
patent: 6249252 (2001-06-01), Dupray et al.
patent: 6263208 (2001-07-01), Chang et al.
patent: 6362783 (2002-03-01), Sugiura et al.
patent: 6496700 (2002-12-01), Chawla et al.
patent: 6496701 (2002-12-01), Chen et al.
patent: 6564065 (2003-05-01), Chang et al.
patent: RE38267 (2003-10-01), Borkowski et al.
patent: 6674403 (2004-01-01), Gray et al.
patent: 6704651 (2004-03-01), van Diggelen
patent: 6782262 (2004-08-01), Lundborg
patent: 6799047 (2004-09-01), Bahl et al.
patent: 6810246 (2004-10-01), Kalofonos et al.
patent: 6873852 (2005-03-01), Koorapaty et al.
patent: 6909902 (2005-06-01), Sawada et al.
patent: 6952181 (2005-10-01), Karr et al.
patent: 7010306 (2006-03-01), Tanibayashi et al.
patent: 2001/0022558 (2001-09-01), Karr et al.
patent: 2001/0044298 (2001-11-01), Tuji et al.
patent: 2003/0012308 (2003-01-01), Sampath et al.
patent: 2003/0129992 (2003-07-01), Koorapaty et al.
patent: 2004/0198386 (2004-10-01), Dupray
patent: 2004/0259575 (2004-12-01), Perez-Breva et al.
patent: 2005/0181804 (2005-08-01), Misikangas et al.
patent: 2005/0281363 (2005-12-01), Qi et al.
patent: 2006/0240839 (2006-10-01), Chen et al.
patent: 02044929 (1990-02-01), None
patent: WO 98/15149 (1998-04-01), None
patent: 03/010261 (2003-12-01), None
patent: 2005/011321 (2005-02-01), None
patent: 2006031034 (2006-03-01), None
patent: 2006031035 (2006-03-01), None
Sarwar, Babar, “U.S. Appl. No. 11/419,654 Office Action”, Dec. 30, 2008, Publisher: USPTO, Published in: US.
Ingo Gaspard et al., Position Assignment in Digital Cellular Mobile Radio Networks (e.g., GSM) Derived from Measurements at the Protocol Interface, IEEE 1997, pp. 592-596.
Martin Hellebrant et al., “Estimating Position and Velocity of Mobiles in a Cellular Radio Network,” IEEE Transactions on Vehicular Technology, vol. 46, No. 1, Feb. 1997, pp. 65-71.
J. Jimenez et al., “Mobile Location Using Coverage Information: Theoretical Analysis and Results,” EURO-COST, Apr. 1999, pp. 1-9.
H. Koshima et al., “Personal Locator Services Emerge,” IEEE Spectrum, Feb. 2000, pp. 41-48.
Schmitz et al., “A New Method for Positioning of Mobile Users by Comparing a Time Series of Measured Reception Power Levels with Predicti”, May 2003, pp. 1993-1997, No. 7803-7757, Publisher: IEEE.
Milano, Massimo, “PCT U.S. Appl. No. PCT/US2007/062008 Jul. 25, 2007”, Publisher: PCT, Published in: PCT.
Milano, Massimo, “PCT U.S. Appl. No. PCT/US2007/062008 Preliminary Report On Patentability May 29, 2008”, Publisher: PCT, Published in: PCT.
Sarwar, Babar, “U.S. Appl. No. 11/419,654 Office Action Oct. 15, 2009”, Publisher: USPTO, Published in: US.
Sarwar, Babar, “U.S. Appl. No. 11/419,654 Office Action Jul. 9, 2009”, Publisher: USPTO, Published in: US.
Harrysson, Andreas, “PCT U.S. Appl. No. PCT/US2006/028268 International Preliminary Report on Patentability Jan. 31, 2008”, , Publisher: PCT, Published in: PCT.
Harrysson, Andreas, “PCT U.S. Appl. No. PCT/US2006/028268 Search Report and Written Opinion Dec. 4, 2006”, , Publisher: PCT, Published in: PCT.
Phan, Huy Q., “U.S. Appl. No. 12/105,855 Office Action Jan. 15, 2010”, Publisher: USPTO, Published in: US.
Phan, Huy Q., “U.S. Appl. No. 12/191,777 Office Action Sep. 18, 2009”, Publisher, USPTO, Published in: US.
Bhattacharya Tarun Kumar
Feuerstein Martin
Gordon Scot Douglas
Spain, Jr. David Stevenson
Appiah Charles N
DeMont & Breyer LLC
Polaris Wireless, Inc.
Vu Michael T
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