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US 9,479,884 B2Granted
Audio sensing device and method of acquiring frequency information
AssigneeSamsung Electronics Co., Ltd.
InventorCheheung Kim
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Abstract
An audio sensing device having a resonator array and a method of acquiring frequency information using the audio sensing device are provided. The audio sensing device includes a substrate having a cavity formed therein, a membrane provided on the substrate and covering the cavity, and a plurality of resonators provided on the membrane and respectively sensing sound frequencies of different frequency bands.
Claims41
An audio sensing device comprising:
- a substrate having a cavity formed therein;
- a membrane provided on the substrate and covering the cavity;
- and
- a plurality of resonators provided on the membrane and respectively configured to sense sound frequencies of different frequency bands,
- wherein each of the plurality of resonators comprises:
- a first electrode provided on the membrane;
- and
- a second electrode fixedly provided on the membrane and spaced apart from the first electrode, and
- wherein the first electrode is disposed between the membrane and the second electrode.
6 more elements
An audio sensing device comprising:
- a membrane configured to vibrate in response to sound;
- and
- a plurality of resonators provided on the membrane and respectively configured to sense different frequency bands of the sound,
- wherein each of the plurality of resonators comprises:
- a first electrode provided on the membrane;
- and
- a second electrode fixedly provided on the membrane and spaced apart from the first electrode, and
- wherein the first electrode is disposed between the membrane and the second electrode.
5 more elements
An apparatus for acquiring frequency domain information with respect to an audio signal, the apparatus comprising:
- an audio sensor comprising a substrate, a membrane disposed on a surface of the substrate, and a plurality of resonators configured to respectively sense a plurality of different frequency bands;
- and
- an analog to digital converter (ADC) configured to convert the plurality of different frequency bands of an audio signal sensed by the plurality of resonators into a digital signal,
- wherein each of the plurality of resonators comprises:
- a first electrode provided on the membrane:
- and
- a second electrode fixedly provided on the membrane and spaced apart from the first electrode, and
- wherein the first electrode is disposed between the membrane and the second electrode.
5 more elements
Dependencies are inferred from the claim text.