Vehicle remote function system and method for determining vehicle FOB locations using adaptive filtering
US9679430B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Apr 16, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2209/64
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A vehicle remote function system is provided for determining locations of a fob relative to a vehicle. The system may include a controller configured for communication with antennas mounted at different locations in the vehicle, the controller for use in determining locations of the fob based on ultra-wide band wireless signals transmitted between the antennas and the fob. The controller is configured to use a first filtering of the wireless signals to determine an initial location of the fob, and a second filtering of the wireless signals to determine a subsequent location of the fob. A method is also provided which may include transmitting ultra-wide band wireless signals between the fob and antennas mounted in the vehicle, using a first filtering of the wireless signals to determine an initial location of the fob, and using a second filtering of the wireless signals to determine a subsequent location of the fob.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.