Pulse or digital communications – Synchronizers
Patent
1997-02-06
1999-02-09
Chin, Stephen
Pulse or digital communications
Synchronizers
370535, H04L 700
Patent
active
058704400
ABSTRACT:
A data-link processing equipment which reduces the processing delay of the data-link data and performs the data-link processing with a good efficiency and an apparatus for a subscriber terminal office using this equipment. This data-link processing equipment provides a data-link synchronizing unit which establishes the synchronization of the data-link data extracted from frame synchronizing units respectively for a plurality of digital transmission lines; a data-link interface unit which latches the data-link data and outputs a data update flag; and a processor which reads and processes the latched data-link data by using the data update flag as an interrupt signal. The apparatus for a subscriber terminal office is constituted so that a subscriber data cross-connect unit is controlled by this data-link processing equipment; a cross-connection of the subscriber data is performed with phases all adjusted to be the same by a phase adjusting unit; and the subscriber data is distributed to channel units for respective subscribers.
REFERENCES:
patent: 4731782 (1988-03-01), Shimizu et al.
patent: 4761779 (1988-08-01), Nara et al.
Matsuno Noriyasu
Tsukagoshi Hirofumi
Chin Stephen
Fujitsu Limited
Park Albert
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