Number | Name | Date | Kind |
---|---|---|---|
3281698 | Rose, Jr. et al. | Oct 1966 | |
3744015 | Marimon et al. | Jul 1973 | |
4539566 | Sharpe et al. | Sep 1985 | |
4549312 | Michaels et al. | Oct 1985 |
Entry |
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IEEE Standard Dictionary of Electrical and Electronics Terms, 3rd Edition, 1984, pp. 22 & 621. |
J. Kalb, Georga Institute of Technology, EEE, Feb. 1971, p. 61, "A Novel Active Filter". |