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1. (WO2018179783) AMPLIFICATION DEVICE

Pub. No.:    WO/2018/179783    International Application No.:    PCT/JP2018/002744
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Tue Jan 30 00:59:59 CET 2018
IPC: H03G 3/02
H04R 3/00
Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
パナソニックIPマネジメント株式会社
Inventors: ITO Satomi
伊藤 さとみ
TOMODA Masaaki
友田 政明
INOUE Yoshifumi
井上 善文
Title: AMPLIFICATION DEVICE
Abstract:
This amplification device is configured such that: the amplification device is switched from a first amplification function to a second amplification function (S13); and then, when the amplification device is switched to the first amplification function (S15) and the state of an operation member corresponds to a second volume which is larger than a first volume output immediately before the amplification device is switched from the first amplification function to the second amplification function (S16), a previous state of the operation member is changed to a state which corresponds to a third volume smaller than the second volume (S17), and an amplification operation of a signal processing circuit is controlled to output the third volume (S18).