Vehicle communication system
US7206615B2 · kind B2 · utility
16Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2004 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Jul 19, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2209/63
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A first transmitter outputs a request signal requesting a response to a mobile device toward an area including a driver's seat and its neighborhood, and a second transmitter outputs a request signal toward an area covering the entire vehicle. The mobile device transmits a response signal to a receiver if receiving the request signal transmitted from the first or second transmitter. The controller detects the position of the mobile device based on a communication result between the mobile device and the receiver in response to the request signals transmitted from the first and second transmitters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.