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US 11,082,775 B2Granted
MEMS microphone
AssigneeInfineon Technologies AG
InventorsDietmar Straeussnigg, Bernd Cettl
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Abstract
Embodiments provide a MEMS microphone comprising a MEMS microphone unit and a modulator connected downstream the MEMS microphone unit. The modulator is configured to apply a defined phase shift to a signal to be modulated.
Claims18
A system comprising:
- at least one modulator comprising
- a subtractor configured to receive an input signal at a first input, and configured to subtract a signal at a second input from the input signal;
- a loop filter having an input coupled to an output of the subtractor;
- a phase shifter having an input coupled to an output of the loop filter;
- and
- a quantizer having an input coupled to the output of the phase shifter and an output coupled to the second input of the subtractor.
3 more elements
Dependencies are inferred from the claim text.