Number | Date | Country | Kind |
---|---|---|---|
ZZX | |||
8701170 | May 1987 | NLX |
Number | Name | Date | Kind |
---|---|---|---|
4209844 | Brantingham et al. | Jun 1980 | |
4398262 | Williams | Aug 1983 | |
4554858 | Wachi et al. | Nov 1985 | |
4695970 | Renner et al. | Sep 1987 |
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Gray et al., "Digital Lattice and Ladder Filter Synthesis", IEEE Trans. on Audio and Electroacoustics, vol. AU-21, No. 6, Dec. 1973, pp. 491-500. |