Patent ID: 9510077
Filing Date: 2016-11-29
CPC Classification: H04R

Claim Text:
1. An earphone comprising: an earphone housing having a wall comprising (1) a front side that joins (2) an end portion in which a primary output opening is formed, which joins (3) a face portion in which a secondary output opening is formed, which joins (4) a back side which joins the front side and encloses a driver, wherein the primary output opening is dimensioned to output sound generated by a diaphragm of the driver contained within the earphone housing into the ear and the secondary output opening is dimensioned to vent the ear to a surrounding environment, and wherein portions of the end portion and the face portion in which the primary output opening and the secondary output opening are formed, respectively, are positioned over a sound output face of the driver and the primary output opening and the secondary output opening face different directions.