DIGITAL MICROPHONE ASSEMBLY WITH IMPROVED FREQUENCY RESPONSE AND NOISE CHARACTERISTICS

A microphone assembly includes an acoustic filter with a first highpass cut-off frequency. The microphone assembly additionally includes a forward signal path and a feedback signal path. The forward signal path is configured to amplify or buffer an electrical signal generated by a transducer in resp...

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Hauptverfasser:	SHAJAAN, Mohammad, HØVESTEN, Per Flemming, FÜRST, Claus Erdmann, THOMSEN, Henrik, BERTHELSEN, Kim Spetzler
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PHYSICS PUBLIC ADDRESS SYSTEMS
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creator	SHAJAAN, Mohammad HØVESTEN, Per Flemming FÜRST, Claus Erdmann THOMSEN, Henrik BERTHELSEN, Kim Spetzler
description	A microphone assembly includes an acoustic filter with a first highpass cut-off frequency. The microphone assembly additionally includes a forward signal path and a feedback signal path. The forward signal path is configured to amplify or buffer an electrical signal generated by a transducer in response to sound and to convert the electrical signal to a digital signal. The feedback signal path is configured to generate a digital control signal based on the digital signal and to generate and output a sequence of variable current pulses based on the digital control signal. The variable current pulses suppress frequencies of the electrical signal below a second highpass cut-off frequency, higher than the first highpass cut-off frequency.
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recordid	cdi_epo_espacenet_US2021127213A1
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subjects	CALCULATING COMPUTING COUNTING DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PHYSICS PUBLIC ADDRESS SYSTEMS
title	DIGITAL MICROPHONE ASSEMBLY WITH IMPROVED FREQUENCY RESPONSE AND NOISE CHARACTERISTICS
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