Portable electronic device including an acoustic chamber

1. A portable electronic device, comprising:

a frame including at least one aperture, the frame having a first side and a second side, the aperture running from the first side to the second side;

an audio source located on the second side of the frame; and

a front housing including a lightguide, wherein the front housing comprises a front first side and a back second side opposite the first front side, the back second side facing the first side of the frame, wherein the front housing and the frame create an acoustic chamber for the audio source.

2. The portable electronic device according to claim 1 ,

wherein the frame comprises a printed circuit board,

wherein the acoustic chamber is coupled to the audio source via the at least one aperture, and

wherein the acoustic chamber is configured to improve the low frequency response of the audio source.

3. The portable electronic device according to claim 1 , wherein the audio source comprises:

a first multifunction transducer; and

a second multifunction transducer.

4. The portable electronic device according to claim 1 , further comprising a keypad coupled to the first side of the front housing, the keypad substantially acoustically sealing the first side of the front housing.

5. The portable electronic device according to claim 1 , further comprising a light source coupled to the frame,

wherein the front housing further includes a light reception unit that receives light from the light source.

6. The portable electronic device according to claim 5 , wherein the light reception unit comprises:

a cylinder coupled to the front housing, the cylinder optically coupled to the light source; and

a conical total internal reflection surface optically coupled to the cylinder.

7. The portable electronic device according to claim 6 , wherein the light reception unit further comprises at least one leg coupled between the cylinder and the frame, and

wherein the cylinder and the at least one leg provide support for the front housing on the frame.

8. The portable electronic device according to claim 6 , further comprising a keypad coupled to the front housing,

wherein the light reception unit provides partial support for the front housing on the frame for activation of a key on the keypad.

9. The portable electronic device according to claim 6 , wherein the conical total internal reflection surface extends partially into the cylindrical structure.

10. The portable electronic device according to claim 6 , further comprising a keypad,

wherein the conical total internal reflection surface substantially redirects light from the light source to a plurality of keys of the keypad.

11. The portable electronic device according to claim 1 , further comprising an audio source cover,

wherein the audio source comprises a first side and a second side, and

wherein the audio source cover substantially acoustically isolates the first side from the second side of the audio source.

12. The portable electronic device according to claim 1 , wherein the audio source operates as a vibrator at a first frequency and operates as an audio source in a second range of frequencies.

13. A mobile communication device, comprising:

a frame including at least one aperture, the frame having a first side and a second side;

a transducer coupled to the second side of the frame, the transducer having a first side and a second side; and

a front housing including a lightguide, the front housing coupled to the frame wherein the front housing comprises a front first side and a back second side opposite the first front side, the back second side facing first side of the frame, wherein the front housing and the frame are acoustically coupled via the aperture, and wherein the front housing and the frame are substantially acoustically sealed together to create an acoustic chamber for the audio source.

14. The mobile communication device according to claim 13 , further comprising a transducer housing coupled to the transducer, the transducer housing substantially hermetically sealing the first side of the transducer from the second side of the transducer.

15. The mobile communication device according to claim 13 , further comprising a light source coupled to the frame,

wherein the front housing further includes a light reception unit that receives light from the light source.

16. The mobile communication device according to claim 13 , wherein the light reception unit comprises:

a front housing support structure coupled between the front housing and the frame, the front housing support structure optically coupled to the light source and the front housing.

17. The mobile communication device according to claim 16 , wherein the front housing support structure further comprises:

a cylinder coupled to the front housing; and

at least one leg coupled between the cylinder and the frame,

wherein the cylinder and the at least one leg provide support for the front housing on the frame.

18. The mobile communication device according to claim 15 , further comprising a keypad, wherein the light reception unit substantially redirects light from the light source to all keys of the keypad.

19. A mobile communication device, comprising:

a first housing;

an audio source;

a frame including a first side and a second side, the frame coupled to the first housing on the first side to create a acoustic chamber between the frame and the first housing, the audio source located on the second side of the frame, the frame comprising:

mobile communication device circuitry; and

an aperture that acoustically couples the audio source to the first side of the frame; and

a second housing coupled to the audio source and the frame.

20. The mobile communication device according to claim 19 , wherein the first housing comprises a lightguide.