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US 2013/0156245 A1Published application
Extended duct with damping for improved speaker performance
AssigneeApple Inc.
InventorsGordon R. Dix, Justin Derry Crosby, Martin E. Johnson, Michael Kai Morishita
Life of this patent
Estimating the term…
Abstract
An electronic audio device including an enclosure having an acoustic output opening and a speaker positioned within the enclosure. The speaker and the acoustic output opening are acoustically coupled by an acoustic output pathway. The acoustic output pathway includes a damping chamber to dampen a resonance frequency of the acoustic output pathway. The speaker is between the damping chamber and the acoustic output opening.
Claims20
An electronic audio device comprising:
- an enclosure having an acoustic output opening;
- a speaker positioned within the enclosure;
- and
- an acoustic output duct connecting the speaker to the acoustic output opening, the acoustic output duct having a damping chamber at a position upstream from the speaker and an exit port at a position downstream from the speaker and wherein a length of the acoustic output duct is greater than its width.
1 more element
An electronic audio device comprising:
- an enclosure having an acoustic output opening;
- a speaker positioned within the enclosure;
- an acoustic output pathway acoustically coupling the speaker to the acoustic output opening, the acoustic output pathway having a length greater than its width;
- and
- a damping chamber connected to the acoustic output pathway to dampen an acoustic response of the acoustic output pathway, and wherein the speaker is between the damping chamber and the acoustic output opening.
2 more elements
An electronic audio device comprising:
- an enclosure having an acoustic output opening;
- a speaker mounted within a frame positioned within the enclosure;
- an acoustic output duct acoustically coupling the speaker to the acoustic output opening, wherein the acoustic output duct comprises a face connecting opposing ends of the acoustic output duct to one another and an opening within the face through which sound waves output from the speaker enter the acoustic output duct;
- and
- a damping chamber connected to one of the opposing ends of the acoustic output pathway to dampen an acoustic response of the acoustic output pathway, wherein the speaker is between the damping chamber and the acoustic output opening, and wherein the acoustic output duct, the damping chamber and the frame are integrally formed with the enclosure as a single unit.
2 more elements
An electronic audio system comprising:
- an enclosure having a speaker acoustically coupled to an acoustic output opening in the enclosure by an acoustic output duct connecting the speaker to the acoustic output opening, the acoustic output duct having a damping chamber at a position upstream from the speaker and an exit port at a position downstream from the speaker;
- a memory to store an operating system program;
- and
- a processor coupled to the memory to execute the operating system program and to send an audio signal to the speaker.
1 more element
Dependencies are inferred from the claim text.