Smart rejecter for keyboard click noise
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United States of America Patent
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Mar 15, 2016
Grant Date -
May 23, 2013
app pub date -
Nov 21, 2012
filing date -
Nov 23, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
According to various embodiments of the invention, a new and effective keyboard click noise reduction scheme is presented. The keyboard click noise reduction scheme may have various processing units including: Dynamic Signal Modeler, Smart Model Selector, Adaptive Filtering Module, Keyboard/Impulse Noise and Voice Activity Detectors, and a Post-Processing Unit. By adaptively changing the coefficients of the proposed adaptive filter through minimizing the output energy, the scheme can provide the target signal/voice with nearly zero keyboard click noise. The scheme could be used in real-time to minimize keyboard click noise or any kind of unwanted noise, especially noise having transient impulse characteristics.
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