Title:
NOISE REDUCTION DEVICE, NOISE REDUCTION METHOD AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2018/198751
Kind Code:
A1
Abstract:
Provided are a noise reduction device, a noise reduction method and a program which are capable of reducing self-noise generated in a device. The noise reduction device 1 is provided with: a signal processing unit 12 which externally outputs a signal generated by performing a prescribed signal process on an electrical signal input to an input unit 10; a switch unit 11 which is provided between the input unit 10 and the signal processing unit 10, and performs switching to any one among a connection state in which the input unit 10 and the signal processing unit 12 are electrically connected and a disconnection state in which the input unit 10 and the signal processing unit 12 are electrically disconnected; and a noise processing unit 13 which subtracts a noise signal output from the signal processing unit 12 when the switch unit 10 is in the disconnection state from a signal output from the signal processing unit 12 when the switch unit 11 is in the connection state, and outputs the subtracted signal.
Inventors:
FUJIMARU MASAMITSU (JP)
Application Number:
PCT/JP2018/015025
Publication Date:
November 01, 2018
Filing Date:
April 10, 2018
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
H04R3/00
Foreign References:
| JPH086575A | 1996-01-12 | |||
| JP2010011117A | 2010-01-14 | |||
| JP2008219164A | 2008-09-18 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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