Enhancing audio performance of a consumer electronic device by producing compensation parameters based on the acoustic signature of the device
AssigneeCirrus Logic International Semiconductor Ltd.
InventorsPär Gunnars Risberg, Landy Toth
Life of this patent
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Abstract
An integrated loudspeaker assembly along with associated methods and systems for enhancing audio output from a consumer electronic device including such an integrated loudspeaker assembly are disclosed. More particularly an integrated loudspeaker assembly configured to utilize the enclosure of an associated consumer electronic device for back volume is disclosed. Methods and systems for optimizing the audio performance of a consumer electronic device with an integrated loudspeaker assembly are also disclosed.
Claims19
A cellular phone comprising:
- a casing defining an enclosure;
- and
- an integrated loudspeaker assembly placed within the enclosure,
- wherein the casing comprises one or more perforations, the perforations configured to communicate an audio signal across the casing to a surrounding environment, and
- wherein the integrated loudspeaker assembly comprises a speaker unit and a mounting support, the mounting support configured to attach the speaker unit to the casing so as to form an air-tight seal and acoustically isolate the perforations from the enclosure, the enclosure forming a back volume for the speaker unit.
A consumer electronic device comprising:
- a casing, wherein the casing defines an enclosure that is substantially acoustically isolated from a surrounding environment;
- a loudspeaker assembly,
- wherein the loudspeaker assembly is attached to the inside of the casing,
- wherein the loudspeaker assembly includes a speaker unit, and
- wherein the enclosure forms a back volume for the speaker unit;
- a signal source, located inside the casing;
- and
- an audio enhancement system,
- wherein the audio enhancement system is connected to the signal source to receive an input signal therefrom,
- wherein the audio enhancement system is connected to the speaker unit to supply an output signal thereto, and
- wherein the audio enhancement system is configured to compensate for the back volume in generating the output signal from the input signal.
A consumer electronic device comprising:
- a substantially sealed casing defining an enclosure, the casing having an acoustic signature;
- an integrated loudspeaker assembly placed within the enclosure, the integrated loudspeaker assembly comprising a speaker unit and a mounting support, the mounting support configured to attach the speaker unit to the casing, configured so as to transmit vibration from the speaker unit to the casing, the enclosure forming a back volume for the speaker unit;
- and
- an audio enhancement system configured to accept an input signal from a source located within the consumer electronic device and to communicate an output signal to the speaker unit, the audio enhancement system configured to compensate for a back volume and/or the acoustic signature of the casing in the output signal.
Dependencies are inferred from the claim text.