Patent ID: 9635458
Date: 2017-04-25
CPC Classifications: A61B,H04R

Claim:
1. A heart rate detection method used in an earphone, said heart rate detection method comprises: providing a cavity inside the earphone, and installing a first microphone in said cavity; a position where an opening of said cavity clings to a shell of the earphone is a position where the shell of the earphone clings to an auricle of an ear of a wearer when the earphone is worn; the shell of the earphone is provided with a hole at the position where the opening of said cavity clings to, and when the earphone is worn on the ear of the wearer, said cavity and the auricle which said hole clings to form an enclosed space; collecting signals generated by pressure change in said cavity by the first microphone when the earphone is worn; taking the signals collected by the first microphone as signals related to heart rate; and detecting heart rate according to the signals related to heart rate.