About 50 results
https://drivepatents.com/patents/990395 · 29 May 2013
Embodiments for performing an indoor navigation are disclosed. In one embodiment, a location based service system includes: a plurality of access points installed in an indoor environment and configured to send Wi-Fi signals including access point identifi...
https://drivepatents.com/patents/990233 · 29 May 2013
An indoor navigation and localisation system, in particular emergency case navigation and localisation system, preferably in a building (1), having a plurality of stationary transmitters (22', 24') adapted to transmit localisation signals and at least one ...
https://drivepatents.com/patents/996072 · 14 Nov 2012
A method and apparatus for processing video information for a vehicle. A number of prior images is selected from images generated by the vehicle. An object is seen in the number of prior images. A model of the vehicle is displayed in the number of prior im...
https://drivepatents.com/patents/1012387 · 8 Jun 2011
A generalized high performance navigation system is provided using low earth orbit (LEO) satellites. In one embodiment, a method of performing navigation includes receiving a LEO signal from a LEO satellite, decoding a navigation signal from the LEO signal...
https://drivepatents.com/patents/1081055 · 5 Jan 2005
A location system for locating and determining the motion and velocity of a wireless device. The methods include direct inferences about whether a device is in motion versus static based on a statistical analysis of the variation of radio signal strengths ...
https://drivepatents.com/patents/1082856 · 27 Oct 2004
An architecture for minimizing calibration effort in an IEEE 802.11 device location measurement system. The calibration technique is based upon a regression function that produces adequately accurate location information as a function of signal strength re...
https://drivepatents.com/patents/1097880 · 5 Mar 2003
The position of a non-cooperating emitter is determined by detecting a signal from the emitter at three or more receiver communication devices positioned at different locations. The receiver communication devices determine respective detection times of the...
https://drivepatents.com/patents/1097876 · 5 Mar 2003
A cellular radio building navigation unit has a receiver (50) with base station identification (52) and field strength measurement (54) for position determination (56) using a radio channel model (58) for the building.
https://drivepatents.com/patents/1102035 · 4 Sep 2002
A navigation system comprises a cell-phone, a base cellular telephone site, and a webserver. Each is paired with a GPS receiver. The GPS receiver associated with the cell-phone is aided with information received from the cell-site and webserver that help r...
https://drivepatents.com/patents/1112216 · 20 Jun 2001
The method involves exchanging radio signals between the mobile terminal and at least one base station. At least two position estimates are made and at least two different paths of motion and their probabilities are determined from position estimates for a...