Smart entry system
US8089343B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2009 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Aug 11, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2209/63
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A smart entry system includes a vehicle-side unit and a plurality of portable devices. Each of the portable devices has a discrimination code different from each other. When a first portable device is locked in a vehicle compartment, the discrimination code of the first portable device is stored in the vehicle-side unit. When the vehicle is parked in a state where all of the doors are locked, the vehicle-side unit transmits a request signal to an exterior communication area provided at an outside of the vehicle, and when the vehicle-side unit receives a response signal from a second portable device and the discrimination code of the second portable device is different from the discrimination code of the first portable device stored in the vehicle-side unit, the vehicle-side unit permits an unlock of the doors of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.