| 摘要 |
A device, method, and computer readable medium are used in connection with providing an indication of zero crossings corresponding to a signal. The signal ( 113 ) is received. Noise is removed from the signal ( 103 ). In response to the signal with noise removed ( 115 ), pairs of points and a time value corresponding to each point are determined ( 105 ), wherein the points of each pair are proximate to a predetermined change in an amplitude of the signal. In response to the pairs and the corresponding time values ( 117 ), a zero crossing time is determined for each pair ( 107 ). A variation in the plurality of zero crossing times ( 119 ) is corrected ( 109 ). A signal ( 123 ) or indication representative of the corrected zero crossing times is output.
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