Method and apparatus for vehicle traffic time calculation
US7741977B2 · kind B2 · utility
4Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2007 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Dec 16, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/0104
- WIPO fieldControl
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.