Remote vehicle control system utilizing multiple antennas
US8319605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2010 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | May 7, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W64/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A remote vehicle control system having a base transceiver mounted in a vehicle and a mobile key fob. The base transceiver utilizes an omni-directional antenna to communicate wirelessly with the key fob via the IEEE 802.15.4 communication protocol. Additional antennas are mounted to the vehicle and are also tuned to communicate over the IEEE 802.15.4 bandwidth. The additional antennas have radiation patterns extending outwardly to various sides of the vehicle (e.g., driver, passenger and rear sides). The system provides remote control functions and enables passive keyless entry functions such as unlocking doors or trunk latches by detecting the presence of the key fob proximate to one or more sides of the vehicle based on the ability of the key fob to communicate over IEEE 802.15.4 via the additional antennas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.