SYSTEMS AND METHODS FOR GENERATING A DIGITAL OUTPUT SIGNAL IN A DIGITAL MICROPHONE SYSTEM
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United States of America Patent
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Oct 9, 2014
app pub date -
Apr 8, 2014
filing date -
Apr 9, 2013
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Abstract
In accordance with embodiments of the present disclosure, a digital microphone system may include a microphone transducer and a digital processing system. The microphone transducer may be configured to generate an analog input signal indicative of audio sounds incident upon the microphone transducer. The digital processing system may be configured to convert the analog input signal into a first digital signal having three or more quantization levels, and in the digital domain, process the first digital signal to convert the first digital signal into a second digital signal having two quantization levels.
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