Martin David Ring;Ricardo F. Carreras;Jason Harlow;Daniel M. Gauger, Jr.;Neil Adam Ranney;Daniel M. Gauger; Jr.;Roman Sapiejewski;Vishu Singh
发明人:
Daniel M. Gauger, Jr.,Ricardo F. Carreras,Jason Harlow,Neil Adam Ranney,Martin David Ring,Roman Sapiejewski,Vishu Singh
申请号：
US13667103
公开号：
US08798283B2
申请日:
2012.11.02
申请国别(地区):
US
年份:
2014
代理人:
摘要：
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.
