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| Number | Title | Issue Date |
| 4821258 | Crosspoint circuitry for data packet space division switches An electronics space-division packet switch is disclosed in which each switch crosspoint includes digital logic capable of resolving simultaneous contentions for the source output buss medium. In particular, a bit-by-bit comparison of priority codes disco... | 04/11/1989 |
| 4799216 | Distributed switching system A distributed switching system (20) is provided for implementation in an integrated circuit utilizing a switching bus (30) in which bus lines (30a-30n) are time division multiplexed serial data streams consisting of time slots used for both transmit and r... | 01/17/1989 |
