Antenna configuration of an apparatus for detecting a child safety seat placed on a seat of a motor vehicle

US6307518A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Reinhard Hamperl · Altötting, DE
• Marten Swart · Obertraubling, DE
• Arnulf Pietsch · Regensburg, DE
• Christian Zelger · Regensburg, DE
• Erwin Hetzenecker · Regenstauf, DE

Key dates

• Filing date: Apr 4, 1997
• Grant date: Oct 23, 2001
• Expiry date: Apr 4, 2017

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q7/00
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

An antenna configuration in an apparatus for detecting a child safety seat placed on a seat in a motor vehicle. A single transmitting antenna formed as a loop surrounds two loop-shaped receiving antennas. The receiving antennas receive electromagnetic measurement fields originating from an electromagnetic exciter field transmitted by the transmitting antenna.