Patent · US Expired

Device for electroacoustic sound generation in a motor vehicle

US7203321B1 · kind B1 · utility

26Cited by

9References

9Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Raymond Freymann · Birkenfeld, DE
Helmut Spannheimer · Neukeferloh, DE

Key dates

Filing date	Sep 21, 2000
Grant date	Apr 10, 2007
Priority date	—
Expiry date	May 19, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG10K15/02
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A device for electroacoustic sound generation in a motor vehicle with a sound pressure sensor, a signal processing unit, which is connected with the sound pressure sensor and receives and processes signals therefrom, and a loudspeaker unit with at least one loudspeaker connected with the signal processing unit. The sound pressure sensor is arranged in the area of the intake tract or exhaust gas tract of the motor vehicle. To ensure a sound generation that is as variable as possible and nevertheless authentic, a synthesizer that is connected with, or integrated in, the signal processing unit is used so that synthetic sound components can be added to the signals generated from the sound pressure sensor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.