Sound volume adjusting apparatus

Patent metadata

Field	Value
Publication number	US-9270242-B2
Application number	US-201414162023-A
Country	US
Kind code	B2
Filing date	Jan 23, 2014
Priority date	Aug 26, 2009
Publication date	Feb 23, 2016
Grant date	Feb 23, 2016

Abstract

A sound volume adjuster includes: a storage which stores a first value of a volume setting value and an allowable maximum change amount; a communication interface which receives a change request indicating a second value of the volume setting value; a comparison device which, when a change amount of the volume setting value between the first value and the second value exceeds the allowable maximum change amount, determines that the change request is an excessive request; and a volume controller which, when the comparison device determines that the change request is the excessive request: changes the first value stored in the storage by a change amount which is equal to or smaller than the allowable maximum change amount to set a third value of the volume setting value; and adjusts a sound volume by the third value.

First claim

What is claimed is:

1. A sound volume adjuster comprising:
a storage which stores a first value of a volume setting value and an allowable maximum change amount;
a communication interface operatively configured to receive a change request indicating a second value of the volume setting value;
a comparison device operatively configured to, when a change amount of the volume setting value between the first value and the second value exceeds the allowable maximum change amount, determine that the change request is an excessive request; and
a volume controller operatively configured to, when the comparison device determines that the change request is the excessive request:
change the first value stored in the storage by a change amount which is equal to or smaller than the allowable maximum change amount to set a third value of the volume setting value; and
adjust a sound volume by the third value, wherein
the communication interface receives the change request indicating the second value from an external apparatus in which the second value is set, and
when the comparison device determines that the change request is the excessive request, the comparison device transmits the third value stored in the storage to the external apparatus.

2. The sound volume adjuster according to claim 1 , wherein
when the external apparatus receives the third value from the comparison device, the third value is set in the external apparatus.

Assignees

• Yamaha Corp

Inventors

• Ito Taini
• Fuse Koichi

Classifications

• H03F2200/03

  the amplifier being designed for audio applications · CPC title

• H03F1/52 Primary

  Circuit arrangements for protecting such amplifiers {(monitoring arrangements G01R31/28; increasing reliability in communication systems, e.g. using redundancy H04B1/74)} · CPC title

• H03G1/04

  Modifications of control circuit to reduce distortion caused by control (modifications to reduce influence of variations of internal impedance of amplifying elements caused by control H03F1/08) · CPC title

• H04R5/04

  Circuit arrangements, {e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments (combinations of amplifiers H03F3/68; stereophonic systems H04S)} · CPC title

• H03G3/00 Primary

  Gain control in amplifiers or frequency changers · CPC title