Noise filter and filtering method
A noise filter, used for a digital signal, configuring an [N−1]-stage filter by connecting the N-number of flip flops in series comprises a selection unit for outputting a filter output signal by selecting one of signals filtered by one to (N−1) stages based on a selection signals; and a wave form c...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A noise filter, used for a digital signal, configuring an [N−1]-stage filter by connecting the N-number of flip flops in series comprises a selection unit for outputting a filter output signal by selecting one of signals filtered by one to (N−1) stages based on a selection signals; and a wave form check unit for making the selection unit change a selection thereby by changing a value of the selection signal based on a pulse width on the filter output signal which is output from the selection unit. |
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