Title:
無線機およびその音量調整方法
Document Type and Number:
Japanese Patent JP7417073
Kind Code:
B2
Abstract:
To clearly receive a call even in a noisy environment in radio equipment in which a microphone for transmission and a speaker for reception in the same housing and that can perform simultaneous two-way communication.SOLUTION: In radio equipment 1 equipped with a microphone 54 for transmission and a speaker 51 for reception in the same housing 21, in a case in which a simultaneous two-way call is made as an IP transceiver, when the earpiece volume exceeds a certain level due to the volume 26, the gain of only an amplifier of a microphone 54 is lowered to prevent howling in advance, and the simultaneous two-way call can be comfortably performed. Also, in the situation in which the volume (volume) 26 is raised, a speaker makes the voice louder, such that, even when the amplifier gain of the microphone 54 is lowered, the other party does not become difficult to hear, and since the amplifier gain of the speaker 51 is maintained as it is, the receiving volume does not decrease, and it becomes possible to clearly receive a call even in a noisy environment.SELECTED DRAWING: Figure 1
Inventors:
Nobuya Morishita
Hirokazu Iwata
Hirokazu Iwata
Application Number:
JP2020024008A
Publication Date:
January 18, 2024
Filing Date:
February 17, 2020
Export Citation:
Assignee:
Icom Co., Ltd.
International Classes:
H04B1/40; H03G3/30; H04M1/00; H04M1/60; H04R3/02
Domestic Patent References:
| JP2011061344A | ||||
| JP2015091120A | ||||
| JP2013048323A | ||||
| JP2012039311A | ||||
| JP2017098626A | ||||
| JP2015126313A | ||||
| JP2003224627A |
Attorney, Agent or Firm:
Katsunori Sugimoto