METHOD AND CIRCUIT OF WIRELESS CONTROLLING A VOLUME OF OUTSIDE SPEAKER AND EARPHONE

摘要

The wireless volumn control adaptor is connected between an earphone hole or speaker hole and an earphone or speaker to adjust volume by receiving volume control signal transmitted from a controller. The wireless volume control adaptor includes a remote controller signal receiver (201) for receiving volume control signal transmitted from a remote controller, a microcomputer (202) for generating volume control signal according to received control signal, an amplifier (203) for amplifying sound signal supplied through earphone hole or speaker hole according to the volume control signal, and outgoing jack hole for connecting earphone jack or speaker jack.