Patent ID: 9591395
Date: 2017-03-07
CPC Classifications: A61B,A61F,H04R

Claim:
1. An earphone, comprising: a housing terminating in a front portion; a speaker disposed in the front portion of the housing; an enhancer comprising a body having an opening for receiving the front portion of the housing and extending outwardly beyond the front portion, the enhancer adapted to be secured in a user's ear to acoustically couple the speaker to the user's ear, the body including at least one aperture disposed over the speaker along a central axis of the body; a sound tube projecting from the body offset from the central axis and adapted to fit in a user's ear canal; and an optical physiologic sensor disposed inside the enhancer behind the at least one aperture and behind the speaker so that the optical physiologic sensor can optically couple with the user's ear when the enhancer is secured in the user's ear.