Method and system for selecting and providing a relevant subset of wi-fi location information to a mobile client device so the client device may estimate its position with …
N Brachet, F Alizadeh-Shabdiz, JN Nelson… - US Patent …, 2013 - Google Patents
US8369264B2 - Method and system for selecting and providing a relevant subset of Wi-Fi
location information to a mobile client device so the client device may estimate its position with …
location information to a mobile client device so the client device may estimate its position with …
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 …
System and method for estimating positioning error within a wlan-based positioning system
F Alizadeh-Shabdiz, EJ Morgan - US Patent 7,856,234, 2010 - Google Patents
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 …
use in a WLAN positioning system that estimates the position of a WLAN-enabled device …
Location-based services that choose location algorithms based on number of detected access points within range of user device
F Alizadeh-Shabdiz, RK Jones, EJ Morgan… - US Patent …, 2010 - Google Patents
4,991, 176 5,315,636 5,564,121 5,940,825 6,134,448 6,272.405 6,438,491 6,678,611
6,799,049 6,862,524 6,888,811 6,915, 128 6,956,527 6,978,023 7,042,391 7,123,928 …
6,799,049 6,862,524 6,888,811 6,915, 128 6,956,527 6,978,023 7,042,391 7,123,928 …
Location-based services that choose location algorithms based on number of detected wireless signal stations within range of user device
F Alizadeh-Shabdiz, RK Jones, EJ Morgan… - US Patent …, 2010 - Google Patents
(57) A location beacon database and server, method of building location beacon database,
and location based service using same. Wi-Fi access points are located in a target …
and location based service using same. Wi-Fi access points are located in a target …
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 of improving sampling of WLAN packet information to improve estimates of Doppler frequency of a WLAN positioning device
F Alizadeh-Shabdiz - US Patent 7,768,963, 2010 - Google Patents
(54) SYSTEMAND METHOD OF IMPROVING 6,678,611 B2 1/2004 Khavakh et al.
SAMPLING OFWLAN PACKET 6,750,814 B1* 6/2004 Nir et al................ 342,357. 12 …
SAMPLING OFWLAN PACKET 6,750,814 B1* 6/2004 Nir et al................ 342,357. 12 …
Server for updating location beacon database
RK Jones, F Alizadeh-Shabdiz, EJ Morgan… - US Patent …, 2011 - Google Patents
(57) ABSTRACT A location beacon database and server, method of building location
beacon database, and location based service using same. Wi-Fi access points are located …
beacon database, and location based service using same. Wi-Fi access points are located …
Estimation of position using WLAN access point radio propagation characteristics in a WLAN positioning system
F Alizadeh-Shabdiz, K Pahlavan - US Patent 7,916,661, 2011 - Google Patents
(57) ABSTRACT A method for estimating position using WLAN access point radio
propagation characteristics in a WLAN location based service is provided. A location-based …
propagation characteristics in a WLAN location based service is provided. A location-based …
Estimation of speed and direction of travel in a WLAN positioning system
A method for estimating the speed and bearing of a Wi-Fi enabled device using WLAN radio
signals in a WLAN based location service is provided. A method used to estimate a speed of …
signals in a WLAN based location service is provided. A method used to estimate a speed of …