Number | Date | Country | Kind |
---|---|---|---|
7414848 | Nov 1974 | NL |
Number | Name | Date | Kind |
---|---|---|---|
3609568 | Jackson | Sep 1971 | |
3725687 | Heightley | Apr 1973 | |
3749895 | Chih-Yu Kao | Jul 1973 |
Entry |
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S.R. Parker et al., "Limit-Cycle Oscillations in Digital Filters" IEEE Trans. on Ckt. Theory vol. ct-18 No. 6, Nov. 1971, pp. 687-697. |