Title:
FAILURE DETECTION APPARATUS, AUDIO INPUT/OUTPUT MODULE, EMERGENCY NOTIFICATION MODULE, AND FAILURE DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/070046
Kind Code:
A1
Abstract:
This failure detection apparatus is provided with: an output unit that outputs from an audio output device a confirmation signal formed by a frequency in a band other than an audible band; an input unit to which an input signal is inputted from an audio input device; and a failure detection unit that detects whether the audio output device and the audio input device are normal on the basis of the confirmation signal and the input signal.
Inventors:
NOMOTO KENTARO (JP)
MUKOJIMA MASAHIRO (JP)
MUKOJIMA MASAHIRO (JP)
Application Number:
PCT/JP2016/080602
Publication Date:
April 19, 2018
Filing Date:
October 14, 2016
Export Citation:
Assignee:
YAMAHA CORP (JP)
International Classes:
H04R29/00; G08B25/08; G08B29/12; H04R27/00
Foreign References:
| JP2014068066A | 2014-04-17 | |||
| JPH05328499A | 1993-12-10 | |||
| JP3775233B2 | 2006-05-17 |
Other References:
See also references of EP 3402219A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
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