Pulse or digital communications – Synchronizers
Patent
1995-09-01
1997-03-18
Chin, Stephen
Pulse or digital communications
Synchronizers
375363, 375365, H04L 700
Patent
active
056129793
ABSTRACT:
The invention provides a synchronous circuit which prevents occurrence of a step-out condition even when an error in padding occurs. The synchronous circuit is applied to a digital transmission system wherein the number of bits in a frame varies periodically and bit number information is included in a frame. Making use of the fact that the bit number information has a periodicity, bit number information for one period is generated by a padding bit generator based on information from a synchronism detector to prevent occurrence of a step-out condition caused by an error in received bit number information.
REFERENCES:
ISO/IEC 11172:3 1993 (E), pp. 70-71.
Chin Stephen
Lee Betsy P.
NEC Corporation
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