Method and system using positions of cellular phones matched to road network for collecting data
US6381533B1 · kind B1 · utility
77Cited by
18References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1999 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Aug 20, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/0969
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A data collection system and method match the positions of one or more cellular phones, or other types of wireless phones, to data indicating the locations of roads in a geographic area to derive data about phones located in vehicles traveling along the roads. The data about phones located in vehicles traveling along the roads are used for updating or refining a geographic database, traffic monitoring and reporting, or for other purposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.