Title:
CONTROL DEVICE AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2017/155031
Kind Code:
A1
Abstract:
In the present invention an acoustic device 20 is equipped with: a biological information acquisition unit 23 that acquires biological information indicating the state of the body of a user; a sleep onset detection unit 24 that detects that the user has fallen asleep on the basis of the biological information; and a sound signal control unit 25 that changes the amplitude of a sound signal from a sound signal output unit 21 to a prescribed value, from the point in time when the sleep onset detection unit 24 detects that the user has fallen asleep until a prescribed amount of time has elapsed.
Inventors:
NAGANO TAKASHI (JP)
Application Number:
PCT/JP2017/009457
Publication Date:
September 14, 2017
Filing Date:
March 09, 2017
Export Citation:
Assignee:
YAMAHA CORP (JP)
International Classes:
H04R3/00
Domestic Patent References:
| WO2015107748A1 | 2015-07-23 |
Foreign References:
| JPH0415064A | 1992-01-20 |
Attorney, Agent or Firm:
OHBAYASHI, Akira et al. (JP)
Download PDF: