Patent ID: 6842620
Filing Date: 2005-01-11
Classification: G08G

Abstract:
1. A system for extracting vehicular movement information using operational data for mobile stations operating in a previously-existing wireless telephony communication network the system comprising: a processor module, logically coupled to the existing wireless telephony communication network, operable to generate a plurality of traffic data records based on the operational data obtained from the existing wireless telephony communication network, each traffic data record identifying a location within the cell sector coverage area of the wireless telephony communication network for one of the mobile stations at a particular time, wherein the processor module comprises a privacy module adapted to remove a mobile station identifier number identifying one of the mobile stations from each of the traffic data records, to replace the mobile station identifier number in the traffic data record with a unique identifying number, and to maintain a relationship between the unique identifying number and the replaced mobile station identifier number; and a movement filtering and detection module, logically coupled to the processor module, operable to generate a movement record in response to processing a pair of the traffic data records associated with a wireless communication activity by a same one of the mobile stations, each movement record comprising first and second locations within the wireless telephony communication network for the same mobile station at different times and reflecting movement by the same mobile station via a vehicle.