Audio porting assembly

• US 7,668,332 B2
• Filed: 10/21/2005
• Issued: 02/23/2010
• Est. Priority Date: 10/21/2005
• Status: Active Grant

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Willis, Richard L., Williams, William R., Gruenhagen, Deborah A., Hendry, Scot A.
• Primary Examiner(s): Briney, III; Walter F
• Application Number:
  US11/255,568
• Publication Number:
  US 20070092097A1
• Time in Patent Office: 1,586 Days
• Field of Search: 381/337, 381/345, 381/349, 381/350, 381/351, 381/352, 381/353, 381/354, 381/355, 381/359, 381/360, 381/361, 381/368
• US Class Current: 381/386
• CPC Class Codes: H04R 1/023 Screens for loudspeakers
• CPC Class Codes: H04R 2410/07 Mechanical or electrical reduction of wind noise generated by wind passing a microphone
• CPC Class Codes: H04R 9/02 Details

Abstract

Both water intrusion and wind noise issues are addressed with an audio porting assembly including a single frame (102) having a speaker cavity (110) and a microphone cavity (112) formed therein. An opening (114) formed within the frame (102) between the speaker cavity (110) and the microphone cavity (112) provides a path for indirect porting from the speaker cavity into the microphone cavity. A unitarily molded membrane (104) provides a seal over the frame (102).

Claims

1. An audio porting apparatus, comprising:

a single frame having first and second cavities with an opening formed therebetween within the frame, the first cavity having direct audio porting and the second cavity having indirect audio porting, the indirect audio porting provided from the second cavity into the first cavity through the opening in the frame; and

a membrane unitarily molded to provide a seal over the frame.

2. The audio porting assembly of claim 1, wherein the membrane is adhesively coupled to the frame.

3. The audio porting assembly of claim 1, wherein the membrane is adhesively coupled to the frame.

4. The audio porting assembly of claim 1, wherein the microphone cavity provides integrated microphone boot functionality.

5. The audio porting assembly of claim 1, wherein the porting assembly provides an integrated acoustic system for tuning responses of the microphone and speaker.

6. An audio porting assembly, comprising:

a single frame having a speaker cavity and a microphone cavity formed therein;

an opening formed within the frame between the speaker cavity and the microphone cavity to provide indirect porting from the speaker cavity into the microphone cavity; and

a unitarily molded membrane coupled to and providing a seal over the single frame.

7. A communication device, comprising:

a housing having a speaker grille;

an audio porting assembly coupled to the speaker grille, the audio porting assembly comprising;

a speaker;

a microphone;

a single frame having a speaker cavity and a microphone cavity formed therein, the frame providing indirect microphone porting from the speaker cavity into the microphone cavity; and

a membrane covering the speaker cavity and the microphone cavity, the membrane being coupled to the speaker grille.

8. The communication device of claim 7, wherein the speaker grille provides an audio port for the microphone.

9. The communication device of claim 7, wherein the audio porting assembly is adhesively coupled between the speaker grille of the housing and the single frame.

10. The communication device of claim 7, wherein the audio porting assembly is compressibly coupled between the speaker grille of the housing and the single frame.

11. The communication device of claim 7, wherein the audio porting assembly is adhesively and compressibly coupled between the speaker grille of the housing and the single frame.

12. The communication device of claim 7, wherein the speaker is aligned behind the speaker grille and the microphone is offset from the speaker grille.

13. The communication device of claim 7, wherein the speaker grille provides an audio port for both the speaker and the microphone.

14. The communication device of claim 7, wherein audio coming out of the speaker is directly ported to the speaker grille and audio entering through the speaker grille is indirectly ported to the microphone through an opening between the speaker cavity and the microphone cavity.

15. The communication device of claim 7, wherein the microphone cavity provides integrated microphone boot functionality.

16. The communication device of claim 7, wherein the membrane minimizes water intrusion and wind noise.

17. The communication device of claim 7, further comprising a pressure relief path formed within the frame to provide equalization of air pressure between the speaker and the membrane.

18. The communication device of claim 7, further comprising:

a printed circuit board (pcb) coupled to the speaker; and

a flex coupled between the microphone and the pcb.

19. The communication device of claim 7, wherein the communication device comprises a portable communication device.

20. The communication device of claim 7, wherein the communication device comprises a mobile communication device.