Title:
ACOUSTIC FEEDBACK SUPPRESSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/057296
Kind Code:
A1
Abstract:
Provided is an acoustic feedback suppression device provided with: a plurality of filters in which pass-bands and stop-bands are alternately disposed on a frequency axis; and a gain control unit which causes an output gain of each of the plurality of filters to change over time, and which sums and outputs signals thus varied, wherein each of the plurality of filters includes a pass-band in at least a part of a stop-band of another filter.
Inventors:
MIYABE MASASHI (JP)
Application Number:
PCT/JP2016/078318
Publication Date:
April 06, 2017
Filing Date:
September 26, 2016
Export Citation:
Assignee:
ASAHI KASEI MICRODEVICES CORP (JP)
International Classes:
H04R3/02
Foreign References:
| JP2007043512A | 2007-02-15 | |||
| JPS4990006A | 1974-08-28 |
Attorney, Agent or Firm:
RYUKA IP LAW FIRM (JP)
Download PDF:
Previous Patent: CONTROL DEVICE AND IMAGING DEVICE
Next Patent: STATOR, MOTOR IN WHICH STATOR IS USED, AND METHOD FOR MANUFACTURING STATOR
Next Patent: STATOR, MOTOR IN WHICH STATOR IS USED, AND METHOD FOR MANUFACTURING STATOR