Time division speech path apparatus

Details Time division speech path apparatus Time division speech path apparatus

1990-07-16

1992-10-13

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 581, 370112, H04J 306

Patent

active

051557282

ABSTRACT:
A time division speech path apparatus includes a frame synchronization detector, a pointer detector, a pointer inserting circuit, an address converter, a selector, and a demultiplexer. Pointers are set on highways so that a relationship between the time slots on the highways and addresses of the speech path memory at which the time slots are written is determined on the basis of the frame phases and pointer values of the respective highways. Data read out from the speech path control memory are converted into addresses in accordance with this relationship and are supplied as read addresses to the speech path memory.

REFERENCES:
patent: 4543652 (1985-09-01), Amada et al.
patent: 4656625 (1987-04-01), Nojiri et al.
patent: 4788680 (1988-11-01), Kikuchi et al.
patent: 4823342 (1989-04-01), Morita et al.
patent: 4941141 (1990-07-01), Hayano
patent: 4947388 (1990-08-01), Kuwahara et al.
J. Bellamy, "Digital Telephony", John Wiley & Sons, Inc., 1982, pp. 242-249.

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