Interface device between a network and an exchange for assemblin

Details Interface device between a network and an exchange for assemblin Interface device between a network and an exchange for assemblin

1994-11-15

1996-09-10

Kizou, Hassan

Multiplex communications

Wide area network

Packet switching

370 601, 370 942, 375356, 375373, H04J 306, H04L 1256

Patent

active

055552617

ABSTRACT:
An internal timing information producing portion produces internal timing information IRTS1 to IRTS4 which is the timing information on a data reception clock by using a network clock C.sub.N and the data reception clock C.sub.RU. A calculator calculates the difference between the internal timing information IRTS1 to IRTS4 and the transmission timing information RRTS1 to RRTS4 contained in a received cell, and a data reception clock producing portion adjusts the timing of the data reception clock C.sub.RU so that the difference is zero and outputs the adjusted timing. An ATM cell decomposing portion outputs the user data D.sub.RU in synchronism with the data reception clock C.sub.RU which is input from the data reception clock producing portion.

REFERENCES:
patent: 4890303 (1989-12-01), Bader
patent: 4961188 (1990-10-01), Lou
patent: 5204882 (1993-04-01), Chao et al.
patent: 5255291 (1993-10-01), Holden et al.
B-ISDN ATM Adaption layer (AAL) specification ITU-T I.363.
R. C. Lau, et al., "Synchronous Techniques for Timing Recovery in BISDN", Globecom '92 Communnication for Global Users, IEEE Global Telecommunications Conference, Dec. 1992, pp. 814-820.

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