Patent · US Active

Annoyance noise suppression

US11218796B2 · kind B2 · utility

2Cited by

1References

13Claims

0Family size

Assignee

Dolby Laboratories Licensing Corporation · US

Inventors

Gints Klimanis · Cupertino, US
Anthony Parks · Queens, US
Richard Fritz Lanman, III · San Francisco, US
Noah Kraft · New York, US
Matthew J. Jaffe · San Francisco, US
Jeffrey Baker · Newbury Park, US

Key dates

Filing date	Jan 6, 2020
Grant date	Jan 4, 2022
Priority date	—
Expiry date	Jan 6, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2460/01
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Personal audio systems and methods are disclosed. A personal audio system includes a voice activity detector to determine whether or not an ambient audio stream contains voice activity, a pitch estimator to determine a frequency of a fundamental component of an annoyance noise contained in the ambient audio stream, and a filter bank to attenuate the fundamental component and at least one harmonic component of the annoyance noise to generate a personal audio stream. The filter bank implements a first filter function when the ambient audio stream does not contain voice activity, or a second filter function when the ambient audio stream contains voice activity.

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