Sub-rate time switch

Details Sub-rate time switch Sub-rate time switch

1991-09-27

1994-02-15

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 581, 370 68, H04Q 1104

Patent

active

052873501

ABSTRACT:
A sub-rate time switch switches a digital multiplexed signal having a basic-rate signal included in a first time slot of the digital multiplexed signal and N sub-rate signals included in a second time slot thereof where N is an integer. Each the sub-rate signals has a sub-rate which is equal to 1/N times a basic rate of the basic rate signal. A speech path memory temporarily stores the digital multiplexed signal input to the sub-rate time switch. A channel signal is read out from the speech path memory and has a plurality of channels corresponding to time slots of the digital multiplexed signal. A control part controls write and read operations of the speech path memory so that the channel signal includes N consecutive channels. Each of the N consecutive channels includes N identical sub-rate signals, and each of the N identical sub-rate signals corresponds to one of the N sub-rate signals included in the second time slot of the digital multiplexed signal.

REFERENCES:
patent: 4680752 (1987-07-01), Takemura et al.
patent: 4704716 (1987-11-01), Bowers et al.
patent: 4884264 (1989-11-01), Servel et al.
patent: 5119368 (1992-06-01), Hiltner et al.
patent: 5146455 (1992-09-01), Goke et al.

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