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US 8,897,464 B2Granted
Condenser microphone
AssigneeKabushiki Kaisha Audio-Technica
InventorHiroshi Akino
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Abstract
A condenser microphone includes a condenser microphone unit and a piezoelectric element. The piezoelectric element is disposed so as to generate piezoelectric signals in response to vibration causing the unit to generate vibratory noise signals. The piezoelectric signals are inputted through a low-pass filter and a level adjuster circuit to the unit to drive a diaphragm of the unit. The vibratory noise signals generated by the vibration in the unit are canceled with the piezoelectric signals generated by the piezoelectric element.
Claims10
A condenser microphone comprising:
- a condenser microphone unit;
- and
- a piezoelectric element,
- wherein the piezoelectric element is disposed so as to generate piezoelectric signals in response to vibration causing the condenser microphone unit to generate vibratory noise signals,
- the piezoelectric signals are inputted through a low-pass filter and a level adjuster circuit to the condenser microphone unit to drive a diaphragm of the condenser microphone unit, and
- the vibratory noise signals are canceled with the piezoelectric signals generated by the piezoelectric element.
3 more elements
Dependencies are inferred from the claim text.