Signal processing system for sensing a periodic signal in the presence of another interfering signal
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United States of America Patent
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May 10, 1994
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app pub date -
Jul 8, 1992
filing date -
Aug 17, 1988
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Abstract
A signal processing system, especially for use in vibration control, wherein noise-free signals inductive of the timing of a primary source and of the timing of at least one interfering secondary source of periodic vibrations are provided as inputs, together with a vibration input signal derived from a sensor sampling the vibrations, and wherein the signals are processed to produce an output representative of interference free vibration of the primary source.
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