Number | Name | Date | Kind |
---|---|---|---|
4536724 | Hasegawa et al. | Aug 1985 | |
4884041 | Walker | Nov 1989 | |
4935707 | Irwin et al. | Jun 1990 | |
5029924 | Jenningschecks | Oct 1991 | |
5070310 | Hietala et al. | Dec 1991 | |
5093632 | Hietala et al. | Mar 1992 | |
5095287 | Irwin et al. | Mar 1992 | |
5122761 | Wischermann | Jun 1992 | |
5180993 | Dent | Jan 1993 | |
5200712 | Srivastava | Apr 1993 | |
5220294 | Ichikawa | Jun 1993 |
Number | Date | Country |
---|---|---|
580668 | Nov 1977 | SUX |
Entry |
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"Wide-Range, Variable-Frequency Oscillator Circuit", IBM Technical Disclosure Bulletin, vol. 30, No. 3, Aug. 1987, p. 1181. |