3742144 is referenced by 16 patents and cites 4 patents.

A digital communication loop system wherein transfers of signal message blocks between interconnecting loops are only made when a Hamming distance criterion is satisfied. Appended to each message block is a loop destination address code comprised of a first ordered concatenation of two binary sequences. Stored at each interconnecting loop transfer point is an address code identifying one of said interconnecting loops, comprised of a second ordered concatenation of two binary sequences. The product of the first and second ordered codes is formed to determine the Hamming distance between the loop destination address code and the address code identifying the interconnecting loop.

Title
Interconnected loop digital transmission system
Application Number
05/201,744
Publication Number
3742144
Application Date
November 24, 1971
Publication Date
June 26, 1973
Inventor
Kurshan Robert Paul
Gopinath Bhaskarpillai
Brandenburg Lane Howard
Assignee
Bell Telephone Laboratories Incorporated
IPC
H04j 03/08
H04L 12/46
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