Number | Name | Date | Kind |
---|---|---|---|
3477031 | Nagata | Nov 1969 | |
3714527 | Schmidt | Jan 1973 | |
3729660 | Maidique | Apr 1973 | |
3823354 | Janssen | Jul 1974 | |
3863331 | Schade, Jr. | Feb 1975 | |
3995304 | Pease | Nov 1976 | |
4025941 | Kanda et al. | May 1977 |
Number | Date | Country |
---|---|---|
1906324 | Sep 1969 | DEX |
Entry |
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Fukahori et al., IEEE J. of Solid State Circuits, vol. SC 11, No. 6, Dec. 1976, pp. 834-846. |
Brokaw et al., IEEE J. of Solid-State Circuits, vol. SC-10, No. 6, Dec. 1975, pp. 421-422. |