Measuring device for a motor vehicle

US7982660B2 · kind B2 · utility

Assignees

• VOLKSWAGEN AKTIENGESELLSCHAFT · DE
• S.M.S. SMART MICROWAVE SENSORS GMBH · DE

Inventors

• Marc-Michael Meinecke · Hillandale Drive East, DE
• Ralph Mende · Braunschweig, DE
• Marc Behrens · Königslutter am Elm, DE
• Thanh-Binh To · Braunschweig, DE

Key dates

• Filing date: Sep 21, 2004
• Grant date: Jul 19, 2011
• Expiry date: Apr 8, 2026

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S2013/93275
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A measuring device , e.g., a measuring device for a motor vehicle, is for measuring a distance between the measuring device and at least one object and/or measuring a difference in speed between the measuring device and the at least one object. The measuring device includes an emitting apparatus for transmitting a transmission signal encompassing at least two sequences of signal portions, a first sequence of signal portions and a second sequence of signal portions with two respective temporally alternating signal portions. The frequency of at least two signal portions of a sequence of signal portions differs by one respective difference frequency, the difference frequency of the first sequence of signal portions being different from the difference frequency of the second sequence of signal portions.