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US 2016/0112796 A1Published application
Analogue signal processing circuit for microphone
AssigneeHyundai Motor Company
InventorsSang-Hyeok YANG, Sang Gyu PARK
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Abstract
An analog signal processing circuit of a microphone includes a bias circuit including a first sub-circuit which receives a signal from the microphone to output a first signal and a second sub-circuit which receives a reference voltage to output a second signal. A fully differential circuit receives the first signal and the second signal to output a fully differential signal. Each of the first sub-circuit and the second sub-circuit includes a bias sub-circuit to apply a bias voltage.
Claims9
An analog signal processing circuit of a microphone, comprising:
- a bias circuit including a first sub-circuit which receives a signal from the microphone to output a first signal and a second sub-circuit which receives a reference voltage to output a second signal;
- and
- a fully differential circuit which receives the first signal and the second signal to output a fully differential signal,
- wherein the first sub-circuit and the second sub-circuit includes a first bias sub-circuit and a second bias sub-circuit to apply bias voltages, respectively.
1 more element
Dependencies are inferred from the claim text.