Interface device

Details Interface device Interface device

1996-08-13

1998-07-07

Kizou, Hassan

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

370395, H04J 306, H04L 1256

Patent

active

057780013

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), Lau
patent: 5204882 (1993-04-01), Chao et al.
patent: 5255291 (1993-10-01), Holden et al.
patent: 5260978 (1993-11-01), Fleischer et al.
patent: 5506835 (1996-04-01), McTiffin
R.C. Lau, et al., "Synchronous Techniques for Timing Recovery in BISDN", Globecom '92 Communication for Global Users, IEEE Global Telecommunications Conference, Dec. 1992, pp. 814-820.
B-ISDN ATM Adaption Layer (AAL) Specification, ITU-T, Recommendation 1.363, Mar. 1993.

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