05177739 is referenced by 73 patents and cites 15 patents.

In a Digital Data System (DDS) a method and apparatus for providing multipoint multiport service. Differences in time delays through the network are compensated by an alignment training wherein the delays from each remote station are measured at a Central station. The Central station determines how much delay to insert at each remote station and then instructs the remote stations to insert the delays. This allows all inbound data to be aligned in time so that when the data are combined within the network by the Multipoint Junction Units (MJU) data errors are not produced. Aligned frames are combined in the MJU operating in data mode in a logical AND operation so that marks transmitted by inactive ports are combined with data from active ports to produce a composite signal which is passed to the Central DSU.

Title
Multiport - multipoint digital data service
Application Number
7/513353
Publication Number
5177739
Application Date
April 20, 1990
Publication Date
January 5, 1993
Inventor
Stephen J Winter
Sunrise
FL, US
Jorge A Valdes
Miami
FL, US
Norman J Donaghue
Reston
WA, US
Jose R Diaz
Sunrise
FL, US
Rogelio J Basnuevo
Miami
FL, US
Agent
Nixon & Vanderhye
Assignee
Racal Data Communications
FL, US
IPC
H04J 3/16
H04J 3/06
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