Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Reexamination Certificate
2006-05-09
2006-05-09
Trost, William (Department: 2683)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
C455S456100, C455S456200, C455S456500, C455S456600, C455S414100, C455S441000, C342S357490, C342S357490, C342S357490, C342S357490
Reexamination Certificate
active
07042391
ABSTRACT:
A mobile device, for determining location in a wireless network, includes a motion detector for detecting motion of the mobile device; a memory for storing wireless signal strength calibration data comprising a list of wireless signal strengths and known locations; a location detection module for measuring a wireless signal strength of any received network radio signals and for determining the location of the mobile device with reference to the wireless signal strength calibration data; and a location correction module, for applying a statistical correction to the measured wireless signal strength determined by the location detection module when the motion detector detects that the mobile device is moving less than a threshold amount. The mobile device may further include an orientation detector for detecting the orientation of the mobile device, which can be compared with orientation data stored in the calibration data.
REFERENCES:
patent: 5590043 (1996-12-01), McBurney
patent: 5900838 (1999-05-01), Khan et al.
patent: 6052598 (2000-04-01), Rudrapatna et al.
patent: 6148211 (2000-11-01), Reed et al.
patent: 6535815 (2003-03-01), Bloebaum
patent: 6839560 (2005-01-01), Bahl et al.
patent: 2001/0022558 (2001-09-01), Karr, Jr. et al.
patent: 2002/0101375 (2002-08-01), Stilp et al.
patent: 2003/0008671 (2003-01-01), Lundgren et al.
patent: 2003/0229445 (2003-12-01), Tingley
patent: 2005/0096841 (2005-05-01), Gedik et al.
patent: WO 03/021851 (2003-03-01), None
Paramvir Bahl and Venkata N. Padmanabhan, “Radar: An In-Building RF-based User Location and Tracking System”, Infocom 2000, Nineteenth Annual Joint Conference of the IEEE Computer and Communications Societies. Proceedings. IEEE Tel Aviv, Israel, Mar. 26-30, 2000, pp. 775-784, vol. 2, Mar. 26, 2000.
Paul Castro, Patrick Chiu, Ted Kremenek, and Richard Muntz, “A Probabilistic Room Location Service for Wireless Networked Environments”, UBICOMP—UCLA Department of Computer Science, 2001, pp. 18-34.
Paramvir Bahl, Venkata N. Padmanabhan,“Radar: An In-Building RF-based User Location and Tracking System”, Proc. IEEE Infocom 2000.
Paul Castro, Patrick Chiu, Ted Kremenek, Richard Muntz, “A Probabilistic Room Location Service for Wireless Networked Environments”, UbiComp 2001, pp. 18-34.
Meunier Jean-Luc
Snowdon Dave
Balaoing Ariel
Trost William
Walder Jeannette
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