Number | Name | Date | Kind |
---|---|---|---|
3623011 | Baynard et al. | Jun 1969 | |
3912873 | Skaperada | Oct 1975 | |
4074072 | Christensen et al. | Feb 1978 | |
4178479 | McDonald et al. | Dec 1979 | |
4213201 | Gagnier et al. | Jul 1980 | |
4228535 | Workman et al. | Oct 1980 | |
4254498 | Tarawa et al. | Mar 1981 | |
4280217 | Hafer et al. | Jul 1981 | |
4322843 | Beuscher et al. | Mar 1982 | |
4377859 | Dunning et al. | Mar 1983 | |
4382294 | Beuscher et al. | May 1983 |
Entry |
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R. Scheller et al., "A Local PCM Switching System for Voice and Data", ISS Conference, May 1979, pp. 419-426. |
H. Takeda et al., "Time Division Switching Control System", Review of the Elec. Comm. Labs., Sep.-Oct. 1979, vol. 27, No. 9-10, pp. 773-782. |