Device and method for authorization interrogation in a motor vehicle
US6710471B1 · kind B1 · utility
18Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2001 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Apr 18, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2209/63
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A device and a method for an authorization interrogation in a motor vehicle uses a transponder exchanges data with an antenna array within the framework of an authorization interrogation. During an external space interrogation, the antenna array is controlled using a current for the external space interrogation and, during an interior space interrogation, using a current for the interior space interrogation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.