Wireless earbud
An earbud includes a housing that includes a driver assembly positioned within the housing forming a front volume in front of the driver and a back volume behind the driver. An acoustic insert is positioned behind the driver assembly and attached to an interior surface of the housing such that it forms a bass channel that is routed from the back volume to a vent in the housing.
1. A wireless earbud comprising:
a housing having a stem portion including first and second ends and an ear portion attached to the first end of the stem portion, the ear portion sized and shaped to support the wireless earbud on a user's ear;
a concha sensor positioned at an exterior surface of the ear portion of the housing and arranged to sense a user's concha when the ear portion is supporting the wireless earbud on the user's ear;
a speaker disposed within the ear portion of the housing;
a first acoustic port defined by the ear portion of the housing and oriented to direct sound from the speaker into a user's ear canal when the ear portion is supporting the wireless earbud on the user's ear;
a second acoustic port formed through a portion of the housing and acoustically coupled to the speaker;
a pair of electrical contacts disposed at the second end of the stem portion;
a microphone disposed within the stem portion; and
a microphone aperture disposed between the pair of electrical contacts and acoustically coupled to the microphone.
2. The wireless earbud of claim 1 wherein the concha sensor comprises an optical sensor.
3. The wireless earbud of claim 1 further comprising a rechargeable battery disposed within the stem portion of the housing.
4. The wireless earbud of claim 1 further comprising a circuit board disposed within the ear portion of the housing.
5. The wireless earbud of claim 4 wherein the circuit board includes a plurality of rigid portions coupled together by flexible portions such that the rigid portions can be arranged in a stacked configuration.
6. The wireless earbud of claim 4 wherein the circuit board includes Bluetooth circuitry.
7. The wireless earbud of claim 4 wherein the circuit board includes power management circuitry electrically coupled to the pair of electrical contacts and to a rechargeable battery.
8. The wireless earbud of claim 1 further comprising an accelerometer positioned within the housing.
9. The wireless earbud of claim 8 wherein the accelerometer is positioned to sense a user's tap on the housing.
10. The wireless earbud of claim 1 wherein the microphone is attached to a flexible circuit that extends from the second end of the stem portion to the ear portion.
11. A portable listening device comprising:
a housing having a tube portion extending from an ear portion, the tube portion having a distal end opposite the ear portion, the ear portion sized and shaped to couple the portable listening device to a user's ear;
a concha sensor positioned at an exterior surface of the ear portion of the housing and arranged to sense a user's concha when the ear portion is coupled to the user's ear;
a speaker disposed within the ear portion of the housing;
a first acoustic port defined by the ear portion of the housing and oriented to direct sound from the speaker into a user's ear canal when the ear portion is coupled to the user's ear;
a second acoustic port formed through a portion of the housing and acoustically coupled to the speaker;
a pair of electrical contacts disposed at the distal end of the tube portion;
a microphone disposed within the tube portion; and
a microphone aperture disposed between the pair of electrical contacts and acoustically coupled to the microphone.
12. The portable listening device of claim 11 wherein the concha sensor comprises an optical sensor.
13. The portable listening device of claim 11 further comprising a rechargeable battery disposed within the tube portion of the housing.
14. The portable listening device of claim 11 further comprising a circuit board disposed within the ear portion of the housing.
15. The portable listening device of claim 14 wherein the circuit board includes a plurality of rigid portions coupled together by flexible portions such that the rigid portions can be arranged in a stacked configuration.
16. The portable listening device of claim 14 wherein the circuit board includes Bluetooth circuitry.
17. The portable listening device of claim 14 wherein the circuit board includes power management circuitry electrically coupled to the pair of electrical contacts and to a rechargeable battery.
18. The portable listening device of claim 11 further comprising an accelerometer positioned within the housing.
19. The portable listening device of claim 18 wherein the accelerometer is positioned to sense a user's tap on the housing.
20. The portable listening device of claim 11 wherein the microphone is attached to a flexible circuit that extends from the distal end of the tube portion to the ear portion.