Method for transmitting either data or voice in an allocated TDM

Details Method for transmitting either data or voice in an allocated TDM Method for transmitting either data or voice in an allocated TDM

1992-12-03

1995-06-27

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 942, 3701101, 375216, 375242, H04J 312

Patent

active

054286131

ABSTRACT:
Data transfer for a time division multiplex (TDM) bus in a communication system that includes a plurality of communication nodes wherein each communication node is allocated at least one time slot of the TDM bus can utilize the following protocol to improve flexibility. When a communication node has an information packet to transmit, it must determine whether it is changing from a first information packet type to a second information packet type message. If a change from transmitting a first information packet type to transmitting a second information packet type is determined, an information type transition message is transmitted via the allocated time slot during a first frame cycle. Upon receiving the information type transition message, at least one other communication node stores the information type transition message. The transmitting communication node then transmits a second information packet type message during a subsequent frame cycle wherein a receiving communication node interprets the second information packet type message as a second information packet type.

REFERENCES:
patent: 5036513 (1991-07-01), Greenblatt
patent: 5182748 (1993-01-01), Sakata et al.

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