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US 12,223,938 B2Granted
Acoustic wave attenuator for an electronic device
AssigneeApple Inc.
InventorsPeter C. Hrudey, Gokhan Hatipoglu, Anthony D. Minervini
Life of this patent
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Abstract
An acoustic device comprising: an enclosure defining an acoustic port and an acoustic pathway between the acoustic port and a transducer coupled to the enclosure; and an array of attenuators acoustically coupled to the acoustic pathway to absorb ultrasonic acoustic waves.
Claims20
An acoustic device comprising:
- an enclosure defining an acoustic port and an acoustic pathway between the acoustic port and a transducer coupled to the enclosure;
- and
- an array of attenuators acoustically coupled to the acoustic pathway, the array of attenuators comprising a first attenuator dimensioned to absorb ultrasonic acoustic waves within a first ultrasonic frequency range and a second attenuator dimensioned to absorb ultrasonic acoustic waves within a second different ultrasonic frequency range.
An acoustic attenuator comprising:
- an enclosure defining an acoustic pathway;
- and
- a first series of attenuators and a second series of attenuators asymmetrically arranged relative to one another along the acoustic pathway, and the first series of attenuators or the second series of attenuators having a first attenuator dimensioned to absorb ultrasonic acoustic waves within a first ultrasonic frequency range and a second attenuator dimensioned to absorb ultrasonic acoustic waves within a second different ultrasonic frequency range.
Dependencies are inferred from the claim text.