Multiplex communications – Pathfinding or routing – Through a circuit switch
Patent
1993-10-04
1997-01-21
Chin, Wellington
Multiplex communications
Pathfinding or routing
Through a circuit switch
H04J 326, H04L 1240
Patent
active
055965784
ABSTRACT:
A time division multiplexing (TDM) digital audio signal processing and communication system is disclosed. The preferred embodiment applies time division multiplexing to a digital audio data transfer environment by providing a TDM patch bay bus structure to which digital audio devices can be plugged into and digital audio data transfer connections made. In the preferred embodiment, the patch bay bus structure includes the bus connection structure, a bus controller and a plurality of digital audio processing devices which each communicate with the bus structure which uses three (3) separate buses: A data bus, control bus and an address bus. Each processing device not only has its own unique address, but also one or more group addresses. Thus, the system allows communication to single recipient devices or multiple recipient devices in one time slice of the TDM signal. Each destination device will activate to receive data from the indicated source device if either its destination address, or the destination address of a group to which it belongs is called. This allows a signal to be sent to one address or to multiple addressed locations during a single time slot of the TDM signal.
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Chin Wellington
Fostex Corporation of America
Sherman, Esq. Kenneth L.
Vu Huy D.
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