Electric circuit for an access control and for an immobilizer of a vehicle and method for calibrating an antenna driver

US8461974B2 · kind B2 · utility

Assignees

• CONTINENTAL AUTOMOTIVE GMBH · DE
• Continental Automotive France · FR

Inventors

• Ulrich Emmerling · Kelheim, DE
• Bernhard Förstl · Ihrlerstein, DE
• Daniel Hostmann · Regensburg, DE
• Matthias Huschenbett · Parker, US
• Luc Jansseune · Venerque, FR
• Rupert Schuster · Rohrbach, DE
• Roland Wagner · Feldkirchen-Westerham, DE

Key dates

• Filing date: Mar 3, 2009
• Grant date: Jun 11, 2013
• Expiry date: Oct 2, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G07C2009/00793
• WIPO field: Control
• WIPO sector: Instruments

Abstract

An electric circuit for controlling the access and immobilizing a vehicle has a first antenna driver (12) for driving a first antenna (19) for emitting a signal (100) in the event of identification of an ID transmitter (3) for access control of a vehicle. A second antenna driver (24) is provided for driving a second antenna (21) for emitting a signal (104) in the event of identification of an ID transmitter (3) for the immobilizer of the vehicle. In addition, the electric circuit has a receiver device (14) for receiving a signal captured by an antenna (21) for the identification of an ID transmitter (3) for the immobilizer. The first antenna driver (12) and the receiver device (14) are commonly integrated into a semiconductor chip (1).