Device and method for sensing an object or a person in the interior of a vehicle

US6437461B1 · kind B1 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Christoph Roth · Bodenwerder, DE
• Alexander Waldmann · Regensburg, DE
• Reinhard Hamperl · Altötting, DE
• Thomas Stierle · Regensburg, DE
• Reinhard Roesl · Wenzenbach, DE
• Gerhard Mader · Thalmässing, DE

Key dates

• Filing date: Feb 25, 2000
• Grant date: Aug 20, 2002
• Expiry date: Feb 25, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S17/04
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In order to sense an object or a person in the interior of a vehicle, laser pulses are output by a laser. Sensing devices are provided for sensing a characteristic variable that is decisive for the transmission energy of the laser. The transmission energy is reduced or the emission of a laser pulse is prevented as a function of the sensed characteristic variable.