Pulse or digital communications – Synchronizers – Phase displacement – slip or jitter correction
Patent
1996-11-25
1998-06-16
Pham, Chi H.
Pulse or digital communications
Synchronizers
Phase displacement, slip or jitter correction
371372, 370505, H03D 324, H04L 2536, H04J 307
Patent
active
057683280
ABSTRACT:
A method for desynchronization in a receiver in a digital transmission system, where justification is performed as required by introducing or removing a single bit in the transmitted bit flow on the transmission side when placing telephone calls in the transmission system, and where, on the transmission side, adjustments are moreover made in the transmission system as required by introducing or removing groups of bits in the transmitted bit flow, smooths the effect of the introduced and removed bits in the receiver by the desynchronization. The effect of the introduced and removed bits in the receiver is smoothed in two stages, so that in one stage just the effect originating from said groups of bits is smoothed, and in the other stage just the effect originating from said individual bits is smoothed.
REFERENCES:
patent: 4355387 (1982-10-01), Portejoie et al.
patent: 4661966 (1987-04-01), Schreiner
patent: 5268936 (1993-12-01), Bernardy
patent: 5367545 (1994-11-01), Yamashita et al.
patent: 5497405 (1996-03-01), Elliot et al.
patent: 5499274 (1996-03-01), Brown
DSC Communications A/S
Pham Chi H.
Tran Khai
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