Variable strength wireless communication system
US8659388B2 · kind B2 · utility
3Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2008 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Sep 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08C17/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless communication system is provided. The communication system comprises a key fob comprising a wireless transmitter adapted to transmit a first signal having a first transmission field strength and first transmission duration, and a second signal having a second transmission field strength and second transmission duration and a vehicle comprising a wireless receiver adapted to receive the first and second signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.