Patent · US Active

Providing ambient naturalness in ANR headphones

US8798283B2 · kind B2 · utility

56Cited by

7References

32Claims

0Family size

Assignee

Bose Corporation · US

Inventors

Daniel M. Gauger, Jr. · Cambridge, US
Ricardo F. Carreras · Southborough, US
Jason Harlow · Watertown, US
Neil Adam Ranney · Boston, US
Martin Ring · Königstein, DE
Roman Sapiejewski · Boston, US
Vishu Singh · Watertown, US

Key dates

Filing date	Nov 2, 2012
Grant date	Aug 5, 2014
Priority date	—
Expiry date	Nov 8, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2460/05
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

In an active noise reducing headphone, a signal processor applies filters and control gains of both the feed-forward and feedback active noise cancellation signal paths. The signal processor is configured to apply first feed-forward filters to the feed-forward signal path and apply first feedback filters to the feedback signal path during a first operating mode providing effective cancellation of ambient sound, and to apply second feed-forward filters to the feed-forward signal path during a second operating mode providing active hear-through of ambient sounds with ambient naturalness.

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