Number | Name | Date | Kind |
---|---|---|---|
3832646 | Szabo et al. | Aug 1974 | |
4409556 | Van Kessel | Oct 1983 | |
4476440 | Bennett, Jr. | Oct 1984 | |
5132640 | Tanaka et al. | Jul 1992 | |
5138276 | Marks | Aug 1992 |
Number | Date | Country |
---|---|---|
637128 | Feb 1995 | EPX |
4098683 | Mar 1992 | JPX |
Entry |
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Taub, "Differential Amplifier With High Input Impedance," IBM Technical Disclosure Bulletin, vol. 9, No. 11, Apr. 1967, pp. 1637, 1638. |