Title:
ＡＮＲヘッドホンで周囲の自然さを提供すること
Document Type and Number:
Japanese Patent JP6965216
Kind Code:
B2
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, 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, and to apply third feed-forward filters to the feed-forward signal path during a third operating mode providing active hear-through of ambient sounds with a different total response than is provided in the second operating mode.
Inventors:
Daniel M. Gogger Jr.
Ricardo F. Carreras
Jason Harlow
Neil Adam Rani
Martin david ring
Roman Sapijewski
Vish Singh
Ricardo F. Carreras
Jason Harlow
Neil Adam Rani
Martin david ring
Roman Sapijewski
Vish Singh
Application Number:
JP2018152445A
Publication Date:
November 10, 2021
Filing Date:
August 13, 2018
Export Citation:
Assignee:
BOSE CORPORATION
International Classes:
H04R1/10; G10K11/178
Domestic Patent References:
| JP2012525779A | ||||
| JP2012524917A | ||||
| JP201197268A |
Foreign References:
| WO2011020992A2 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mitsuhiro
Tatsuhiko Abe
Shinya Mitsuhiro
Tatsuhiko Abe