Patent ID: 11917355
Assignee: APPLE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 13:
14. An earphone, comprising:
a housing, comprising:
a speaker; and
a stem extending from the speaker; and

a flexible circuit disposed in the stem and comprising:
a first circuitry section;
a second circuitry section;
a third circuitry section; and
a fourth circuitry section;

wherein the flexible circuit is operable to flex to allow:
the first circuitry section to move toward the second circuitry section or the third circuitry section to move toward the fourth circuitry section when a force is applied to the stem; and
the first circuitry section to move away from the second circuitry section when the force is no longer applied; and

a controller, disposed in the housing, that is operative to determine an input using a change in capacitance detected using the first circuitry section and the second circuitry section or the third circuitry section and the fourth circuitry section.