Title:
NOISE REDUCTION DEVICE, METHOD FOR REDUCING NOISE, AND PROGRAM
Document Type and Number:
Japanese Patent JP2018186348
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a noise reduction device, a method for reducing noise, and a program that can reduce self-noise generated in a device.SOLUTION: A noise reduction device 1 includes: a signal processing unit 12 for outputting, to the outside, a signal generated by conducting predetermined signal processing to an electric signal input to an input unit 10; a switching unit 11 between the input unit 10 and the signal processing unit 12, the switching unit switching between a connection state in which the input unit 10 and the signal processing unit 12 are electrically connected and a disconnection unit in which the input unit 10 and the signal processing unit 12 are electrically disconnected; and a noise processing unit 13 for subtracting a noise signal output from the signal processing unit 12 when the switching unit 10 is in the disconnection state from a signal output from the signal processing unit 12 when the switching unit 11 is in the connection state.SELECTED DRAWING: Figure 1
Inventors:
FUJIMARU MASAMITSU
Application Number:
JP2017085659A
Publication Date:
November 22, 2018
Filing Date:
April 24, 2017
Export Citation:
Assignee:
OLYMPUS CORP
International Classes:
H04R3/00
Attorney, Agent or Firm:
Sakai International Patent Office