Digital key telephone system

Details Digital key telephone system Digital key telephone system

H - Electricity

04

Q

344/13

H04Q 3/58 (2006.01) H04M 11/06 (2006.01)

Patent

CA 1304482

Abstract of the Disclosure Communication paths in a digital key telephone system are operated by sequentially transferring bit states from origin channels associated with communication ports to exclusively dedicated time slots in a parallel transmission medium. Time slot bit states are selective stored at designated memory locations corresponding to destination channels associated with the communication ports. The memory locations are read in synchronizm with the channel occurrences and bit states from the designated memory locations are asserted in the corresponding channels, any remaining channels having predetermined bit states asserted therein.

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