04816989 is referenced by 136 patents and cites 2 patents.

A synchronizer for each node in a multiple node processing system having a message interface for receiving sync and pre-sync time-dependent message, counter means for generating a local time, a time stamp memory having an entry for each node in the multiple node processing system, a time stamper responsive to receiving a time-dependent message from a node for storing the local time in the entry of said time stamp memory for that node to generate a time stamp. The synchronizer has a time stamp voter for generating a medial time stamp value from all the time stamps in the time stamp memory, a sync correction generator for generating a sync delta having a value corresponding to the difference between the voted time stamp and the node's own time stamp, means for adding said sync delta to a nominal transmission timing interval to generate an actual transmission timing interval, and a message generator for generating a pre-sync time dependent message passed to the transmitter at the end of the nominal transmission timing interval and for generating a sync time-dependent message passed to the transmitter at the end of said actual transmission timing interval.

Title
Synchronizer for a fault tolerant multiple node processing system
Application Number
7/38818
Publication Number
4816989
Application Date
April 15, 1987
Publication Date
March 28, 1989
Inventor
Chris J Walter
Columbia
MD, US
Roger M Kieckhafer
Ellicott City
MD, US
Alan M Finn
Amston
CT, US
Agent
Howard G Massung
Assignee
Allied Signal
NJ, US
IPC
G06F 15/16
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