Patent ID: 7835754
Filing Date: 2010-11-16
Classification: G01S,H04W

Abstract:
1. A method used to estimate a speed of travel of a Wi-Fi enabled device without requiring position estimates of the Wi-Fi enabled device, comprising: the Wi-Fi enabled device receiving signals transmitted by a plurality of Wi-Fi access points in range of the Wi-Fi enabled device, the receiving occurring over time; the Wi-Fi enabled device measuring an individual amount of time during which the Wi-Fi enabled device continually detects signals transmitted by a corresponding individual Wi-Fi access point of the plurality of Wi-Fi access points; calculating an average amount of time during which signals transmitted by the individual Wi-Fi access points are detected based on the individual amounts of time signals from the corresponding individual Wi-Fi access points are detected; and estimating the speed of travel of the Wi-Fi enabled device using the average amount of time signals are detected, so that the speed of travel can be estimated without requiring position estimates of the Wi-Fi enabled device.