Hands-free remote entry system
US5973611A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1995 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Mar 27, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2009/00984
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention teaches a hands-free remote entry system primarily for vehicles. This system comprises a base transceiver having wake-up sensors for automatically detecting an object. Once an object is detected, a transmitter within the base transceiver transmits a wake-up/data signal to a fob transceiver. A wake-up receiver within the fob transceiver receives the wake-up/data signal. Upon receipt of the wake-up/data signal, the fob transceiver transmits an identification/data signal, via a transmitter, back to a receiver in the base transceiver. In response to receiving the identification signal, output drivers from the base transceiver actuate a door lock system and an auto theft system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.