Method and apparatus for vehicle traffic time calculation

Details Method and apparatus for vehicle traffic time calculation Method and apparatus for vehicle traffic time calculation

2007-12-17

2010-06-22

Crosland, Donnie L (Department: 2612)

Communications: electrical

Vehicle detectors

C340S928000, C340S936000, C701S117000, C701S119000

Reexamination Certificate

active

07741977

ABSTRACT:
A method and apparatus for calculating the travel time of a vehicle as it transits through multiple locations. The method and apparatus includes a device for detecting a radio signal from a vehicle, attaching information to the radio signal, and transmitting a message packet with the signal and attached information to a central server. The central server stores the message packet. The central server compares the information in the message packet against other stored message packets received from multiple locations. When matching information is found, an algorithm is run to compute a vehicle travel time between two locations.

REFERENCES:
patent: 6230011 (2001-05-01), Guenther et al.
patent: 6911918 (2005-06-01), Chen
patent: 7142977 (2006-11-01), Knuuttila et al.
patent: 0208922 (2002-01-01), None
patent: 0225617 (2002-03-01), None

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