Feedback enclosure and feedback system for a transducer of an electronic device

1. A feedback system for output sounds generated by a communication device, comprising:

a speaker;

a microphone;

an enclosure for the communication device defining a first location for the placement of the speaker, a second location for the placement of the microphone, a first port connecting the first location to a cavity located on a top side of the enclosure, a second port connecting the second location to the cavity,

the cavity comprising: a bottom; sidewalls inwardly extending from an external face of the enclosure to the bottom; and an access extending across the external face, and between the sidewalls, the cavity having a same cross-sectional shape from the access to the bottom, the first port extending from the bottom of the cavity to the speaker, the second port extending from the bottom of the cavity to the microphone, and respective openings of each of the first port and the second port adjacent to each other in the bottom of the cavity; and,

a processor; and a memory device; the processor configured to:

measure input signals detected by the microphone; and

when the input signals are determined to be greater than a threshold, decrease a current output signal.

2. The feedback system as claimed in claim 1 , wherein:

the first port is shaped and has dimensions to be smaller than a cross section of an opening to an ear canal for a human.

3. The feedback system as claimed in claim wherein the first port has:

a height of between approximately 1 mm and 4 mm; and

a width of between approximately 2 mm and 15 mm.

4. The feedback system as claimed in claim 1 wherein:

the threshold is approximately 125 dBA.

5. The feedback system as claimed in claim 4 , wherein the the processor is further configured to:

when the input signals are determined to be less than the threshold, continue to provide the current output signal to the speaker.

6. The feedback system as claimed in claim 1 , wherein the processor further configured to:

when the input signals are determined to be less than the threshold and greater than a minimum threshold, either:

continue to provide the current output signal provided to the speaker; or

change a characteristic of the current output signal to boost at least a portion of the current output signal, when the input signals at the microphone are still below the threshold.

7. The feedback system as claimed in claim 1 , wherein the processor is further configured to:

when the input signals are determined to be less than a minimum threshold, increase the current output signal provided to the speaker, where the input signals at the microphone are still below the threshold.

8. The feedback system as claimed in claim 1 , further comprising:

an alignment feature protruding from either the enclosure or a cover for the enclosure, the alignment feature located near the cavity and providing a physically detectable feature indicating when the device is being positioned about a user's ear.

9. A method of adjusting output sounds generated by a communication device, comprising:

measuring input signals detected by a microphone located in an enclosure for the communication device defining a first location for the placement of a speaker, a second location for the placement of the microphone adjacent to the speaker, a first port connecting the first location to a cavity located on a top side of the enclosure, and a second port connecting the second location to the cavity, the cavity comprising: a bottom; sidewalls inwardly extending from an external face of the enclosure to the bottom; and an access extending across the external face, and between the sidewalls, the cavity having a same cross-sectional shape from the access to the bottom, the first port extending from the bottom of the cavity to the speaker, the second port extending from the bottom of the cavity to the microphone, and respective openings of each of the first port and the second port adjacent to each other in the bottom of the cavity;

and

when the input signals are greater than a threshold, decreasing a current signal output.

10. The method of adjusting output sounds generated by a communication device, as claimed in claim 9 , wherein:

the threshold is approximately 125 dBA.

11. The method of adjusting output sounds generated by a communication device, as claimed in claim 9 , further comprising:

determining whether the input signals are less than the threshold and if so continuing to provide the current output signal to the speaker.

12. The method of adjusting output sounds generated by a communication device, as claimed in claim 9 , further comprising:

determining whether the input signals are less than the threshold and greater than a minimum threshold, and if so, either

continuing to provide the current output signal to the speaker; or

changing a characteristic of the current output signal to boost at least a portion of the current output signal provided to the speaker, where the input signals at the microphone are still below the threshold.

13. The method of adjusting output sounds generated by a communication device, as claimed in claim 9 , further comprising:

determining whether the input signals are less than a minimum threshold, and if so increasing the current output signal provided to the speaker, where the input signals at the microphone are still below the threshold.

14. The method of adjusting output sounds generated by a communication device, as claimed in claim 9 , wherein:

the first port is shaped and has dimensions to be smaller than a cross section of an opening to an ear canal for a human.

15. The method of adjusting output sounds generated by a communication device, as claimed in claim 9 , wherein the first port has:

a height of between approximately 1 mm and 4 mm; and

a width of between approximately 2 mm and 15 mm.

16. A non-transitory computer-readable medium storing a computer program, wherein execution of the computer program is for adjusting output sounds generated by a communication device:

measuring input signals detected by a microphone located in an enclosure for the communication device defining a first location for the placement of a speaker, a second location for the placement of the microphone adjacent to the speaker, a first port connecting the first location to a cavity located on a top side of the enclosure, and a second port connecting the second location to the cavity, the cavity comprising: a bottom; sidewalls inwardly extending from an external face of the enclosure to the bottom; and an access extending across the external face, and between the sidewalls, the cavity having a same cross-sectional shape from the access to the bottom, the first port extending from the bottom of the cavity to the speaker, the second port extending from the bottom of the cavity to the microphone, and respective openings of each of the first port and the second port adjacent to each other in the bottom of the cavity;

and

when the input signals are greater than a threshold, decreasing a current signal output.