Title:
無線通信システム、無線送受信装置、及び音声出力判定方法
Document Type and Number:
Japanese Patent JP6653167
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To monitor a ringing state of a speaker even when broadcasting any sound.SOLUTION: In a radio communication system which comprises first radio equipment and second radio equipment for performing audio output on the basis of audio information that is transmitted from the first radio equipment by radio, the first radio equipment includes a reference value generation part which generates a reference value for discriminating a volume of audio when the second radio equipment performs audio output of the audio information transmitted by radio. The second radio equipment includes a speaker, a volume measurement part for measuring the volume of audio outputted from the speaker, and a discrimination part for discriminating whether the measured audio volume is normal on the basis of the reference value. When the first radio equipment transmits the audio information and the reference value to the second radio equipment by radio, based on the received audio information, the second radio equipment performs audio output from the speaker. In the case where it is discriminated that the audio volume is abnormal, abnormality information indicating that the audio output from the speaker is abnormal is transmitted to the first radio equipment by radio.SELECTED DRAWING: Figure 1
Inventors:
Yoshizawa Masayoshi
Application Number:
JP2015245203A
Publication Date:
February 26, 2020
Filing Date:
December 16, 2015
Export Citation:
Assignee:
Hitachi Kokusai Electric Co., Ltd.
International Classes:
H04H20/12; G08B21/18; G08B25/10; G08B27/00; G08B29/12; H04H20/59; H04H60/32; H04M11/04
Domestic Patent References:
| JP2004318285A | ||||
| JP64042942A | ||||
| JP2004064686A | ||||
| JP2010147893A | ||||
| JP2009049912A |
Attorney, Agent or Firm:
Polaire Patent Business Corporation