Resources Contact Us Home
Estimation of speed of travel using the dynamic signal strength variation of multiple WLAN access points

Image Number 5 for United States Patent #8014788.

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 travel of a Wi-Fi enabled device comprises the Wi-Fi enabled device receiving signals transmitted by Wi-Fi access points in range of the Wi-Fi enabled device, and using the signals to estimate the speed of and/or direction of travel of the Wi-Fi enabled device.

  Recently Added Patents
Hybrid fin field-effect transistor structures and related methods
Sliding-type portable communication device
Using location based services for determining a calling window
Stowable pet leash and collar
Crosslinked core/shell polymer particles
Apparatus for generating electrical energy from rocking activated energy
Method for driving bistable display device
  Randomly Featured Patents
Plasma arc furnace with variable path transferred arc
Tissue valve cleansing apparatus
Index tab for hanging file folders adapted for affixation of index labels and the like
User programmable combination of atomized particles for electromagnetically induced cutting
Behind-the-ear hearing device with a magnetically-attached ear hook
Optical wavelength determination using multiple measurable features
Static random access memory system with compensating-circuit for bitline leakage
Retroreflective cube corner article having scalene base triangles
Process of high pressure curing with ultraviolet radiation
Drive interface for operably coupling a manipulatable surgical tool to a robot