Fault tolerant vehicle communication and control apparatus
US7778186B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2008 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Jan 31, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2009/00357
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Medium-range and global network information and control for a vehicle is achieved with a portable wireless key fob, a user-provided nomadic device, and a vehicle-installed telematics unit including a medium-range RF transceiver and a wireless network transceiver. The fob includes a medium-range RF transceiver for bi-directional communication with the telematics unit, and a short-range wireless transceiver for bi-directional communication with the nomadic device. The fob communicates with the telematics unit in a conventional manner, and also relays information between the telematics unit and the nomadic device. If a communication initiated via the fob cannot be completed because the fob is out of range, the communication is sent to the nomadic device for network transmission to the telematics unit. If a communication initiated via the nomadic device cannot be completed due to inadequate signal reception, the communication is sent to the fob for RF transmission to the telematics unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.