Methods and systems for determining location using a cellular and wlan positioning system by selecting the best cellular positioning system solution
F Alizadeh-Shabdiz - US Patent 8,155,666, 2012 - Google Patents
US8155666B2 - Methods and systems for determining location using a cellular and WLAN
positioning system by selecting the best cellular positioning system solution - Google Patents …
positioning system by selecting the best cellular positioning system solution - Google Patents …
Systems and methods for determining position using a WLAN-PS estimated position as an initial position in a hybrid positioning system
F Alizadeh-Shabdiz - US Patent 8,054,219, 2011 - Google Patents
This disclosure describes a method and system for determin ing position using a WLAN-PS
estimated position as an ini tial position. In some embodiments, the method can include …
estimated position as an ini tial position. In some embodiments, the method can include …
System and method for refining a WLAN-PS estimated location using satellite measurements in a hybrid positioning system
F Alizadeh-Shabdiz - US Patent 8,089,399, 2012 - Google Patents
6,894,645 6,928,292 6,978,023 7,120,449 7,123,928 7,130,646 7,221,928 7,236,126
7,250,907 7,305,245 7,313.402 7,397,424 7,403,762 7,414.988 7,433,694 7471954 …
7,250,907 7,305,245 7,313.402 7,397,424 7,403,762 7,414.988 7,433,694 7471954 …
Estimation of speed and direction of travel in a WLAN positioning system
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6,678,611 B2 1/2004 Khavakh et al. 6,888,811 B2 5/2005 Eaton et al. 6,978,023 B2 12/2005 …
System and method for using a satellite positioning system to filter WLAN access points in a hybrid positioning system
F Alizadeh-Shabdiz - US Patent 7,999,742, 2011 - Google Patents
This disclosure describes a system and method for using a satellite positioning system to
filter WLAN access points in a hybrid positioning system. In some embodiments, the method …
filter WLAN access points in a hybrid positioning system. In some embodiments, the method …
Methods and systems for stationary user detection in a hybrid positioning system
F Alizadeh-Shabdiz - US Patent 8,089,398, 2012 - Google Patents
US8089398B2 - Methods and systems for stationary user detection in a hybrid positioning
system - Google Patents US8089398B2 - Methods and systems for stationary user detection in …
system - Google Patents US8089398B2 - Methods and systems for stationary user detection in …
System and method for estimating positioning error within a WLAN-based positioning system
F Alizadeh-Shabdiz, EJ Morgan - US Patent 8,019,357, 2011 - Google Patents
(57) The invention features a method of estimating an expected error of a position estimate
for use in a WLAN positioning system that estimates the position of a WLAN-enabled device …
for use in a WLAN positioning system that estimates the position of a WLAN-enabled device …
Method and system for employing a dedicated device for position estimation by a WLAN positioning system
F Alizadeh-Shabdiz - US Patent 8,144,673, 2012 - Google Patents
2003/01 19445 A1 6/2003 Bromham et al............... 455, 39 2003/O125045 A1 T/2003 R1 1
2009. O154371 A1 6/2009 Alizadeh-Shabdiz et al. 2003, 0225893 A1 12, 2003 R. ey et ai …
2009. O154371 A1 6/2009 Alizadeh-Shabdiz et al. 2003, 0225893 A1 12, 2003 R. ey et ai …
Continuous data optimization of moved access points in positioning systems
EJ Morgan, MG Shean, F Alizadeh-Shabdiz… - US Patent …, 2013 - Google Patents
Methods and systems of continuously optimizing data in WiFi positioning systems. A location-
based services system uses WiFi-enabled devices to monitor WiFi access points in a target …
based services system uses WiFi-enabled devices to monitor WiFi access points in a target …
Methods and systems for determining location using a cellular and WLAN positioning system by selecting the best WLAN PS solution
F Alizadeh-Shabdiz - US Patent 8,462,745, 2013 - Google Patents
4,903,212 4,908,629 4.924, 491 5,022,751 5,043,736 5,095,505 5,119,101 5,119,504
5,136,636 5,155,689 5,161,180 5,202,829 5,235,630 5,235,633 5,257,195 5, 276451 …
5,136,636 5,155,689 5,161,180 5,202,829 5,235,630 5,235,633 5,257,195 5, 276451 …