Number | Name | Date | Kind |
---|---|---|---|
4403330 | Meyer | Sep 1983 | |
4821286 | Graczyk et al. | Apr 1989 | |
5022056 | Henderson et al. | Jun 1991 | |
5204879 | McConnell | Apr 1993 |
Entry |
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"Base Digital Transmission", Transmission Systems for Communications, AT&T Bell Labs, pp. 703-714. |