Patent ID: 8204268
Filing Date: 2012-06-19
Classification: H04R

Abstract:
1. A wired control of an earphone, the wired control comprising: a ring defining a through hole in the middle and a plurality of rails, wherein one end of each of the plurality of rails is connected to the inner surface of the ring, and the other end is connected to the outer surface of the through hole; and a body defining an axis extended from the middle and three protrusions each of which is mounted with a circuit board, wherein the circuit board is electrically mounted with a switch thereon and connected to a circuit of the earphone; wherein the axis of the body is engaged with the through hole of the ring, one of the three switches faces the inner surface of the ring and each of the other two of the three switches faces one of the plurality of rails, and the ring is rotatably mounted on the body; and when the switch is activated by the movement of the ring, the circuit board corresponding to the activated switch generates a trigger signal to the earphone so as to perform a function.