Number | Name | Date | Kind |
---|---|---|---|
4413335 | Clements et al. | Nov 1983 | |
4421951 | Van Basse | Dec 1983 | |
4636584 | Binkerd et al. | Jan 1987 | |
4916233 | Smith et al. | Apr 1990 | |
4926467 | Meier | May 1990 | |
4926469 | Smith et al. | May 1990 | |
5134651 | Ortiz et al. | Jul 1992 | |
5202919 | Kiko | Apr 1993 |
Entry |
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"The D4 Digital Channel Bank Family", Nov. 1982, The Bell System Technical Journal, pp. 2605-2625. |