Patent · US Active

Method and system for calibrating a structure-borne sound-sensitive acceleration sensor and method for correcting the measuring signals of a structure-borne sound-sensitive acceleration signal

US11812215B2 · kind B2 · utility

0Cited by

0References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Christian Marschall · Reutlingen, DE
Amin Jemili · Aspenhausiedlung, DE
Sergej Scheiermann · Eningen unter Achalm, DE

Key dates

Filing date	Jan 20, 2022
Grant date	Nov 7, 2023
Priority date	—
Expiry date	Feb 6, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2460/13
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method for calibrating a structure-borne sound-sensitive acceleration sensor with the aid of at least one microphone. For this purpose, the acceleration sensor is situated in an intended position on the body of a user. Furthermore, at least one acceleration sensor signal and at least one microphone signal are detected, the at least one acceleration sensor signal and the at least one microphone signal being synchronized and having been caused by a vocalization of the user. A frequency analysis of the acceleration sensor signal and a frequency analysis of the microphone signal are carried out. A frequency-dependent correction function for correcting the transmission function of the acceleration sensor is ascertained on the basis of the frequency analyses of the acceleration sensor signal and the microphone signal.

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