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US 2023/0069090 A1Published application
Two-way integrated speaker with piezoelectric diaphragm as tweeter
AssigneeApple Inc.
InventorsAneesh R. KUDEKAR, Onur I. ILKORUR, Pablo Seoane VIEITES, Stuart M. NEVILL
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Abstract
Aspects of the subject technology relate to a device comprising a moving-coil speaker including a diaphragm to play low-frequency signals from an audio-signal source, and a piezoelectric transducer coupled to the diaphragm to play high-frequency signals from the audio-signal source. A coupler couples the diaphragm to a housing of the device.
Claims22
A device comprising:
- a moving-coil micro-speaker comprising:
- a diaphragm configured to produce low-frequency signals from an audio-signal source;
- a piezoelectric transducer formed on or bonded to the diaphragm and configured to produce high-frequency signals from the audio-signal source;
- and
- a coupler configured to couple the diaphragm to a housing of the device.
2 more elements
A method comprising:
- coupling a diaphragm to a voice coil to create low-frequency audio waves in response to receiving a low-frequency audio signal from an audio-signal source connected to a device;
- coupling a piezoelectric transducer to the diaphragm to create high-frequency audio waves in response to receiving a high-frequency audio signal from the audio-signal source;
- and coupling the diaphragm to a housing of the device,
- wherein coupling the piezoelectric transducer to the diaphragm comprises one of forming the piezoelectric transducer on the diaphragm or bonding the piezoelectric transducer to the diaphragm.
1 more element
A speaker comprising:
- a primary coil;
- a diaphragm configured to play low-frequency signals of audio signals;
- and
- a piezoelectric transducer coupled to the diaphragm and configured to play high-frequency signals of the audio signals,
- wherein the diaphragm is formed on or bonded to a housing of the speaker, wherein the housing is configured to integrate the diaphragm and the piezoelectric transducer.
2 more elements
Dependencies are inferred from the claim text.