Patent · US Active

Active noise control arrangement, active noise control headphone and calibration method

US9779714B2 · kind B2 · utility

2Cited by

19References

22Claims

0Family size

Assignee

AMS AG · AT

Inventors

Helmut Theiler · Lieboch, AT
Roberto Simmarano · Graz, AT

Key dates

Filing date	Oct 6, 2009
Grant date	Oct 3, 2017
Priority date	—
Expiry date	Sep 10, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG11C13/0007
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

An active noise control arrangement has a signal input (SI), a microphone input (MI), a signal output (SO) and a digital interface (DI). A signal processing block (SP) coupled to the microphone input (MI) by means of an amplifier (MA) has a digitally adjustable gain and comprises combining means (CM) and a filter (TP). The signal processing block (SP) is configured to generate an output signal at the signal output (SO) as a function of an input signal at the signal input (SI) and an amplified microphone signal. A control block (CB) is coupled to the digital interface (DI) and configured to adjust the gain of the amplifier (MA).

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