Interconnected loop data block transmission system

USRE28811E · kind E · reissue

Assignee

• Bell Telephone Laboratories, Inc. · US

Inventor

• John R. Pierce · Huntington Woods, US

Key dates

• Filing date: Oct 29, 1973
• Grant date: May 11, 1976
• Expiry date: Oct 29, 1993

Classification

• Technology area (CPC —): General

Abstract

A closed loop transmission system is described in which a plurality of stations have access to each loop to write messages into and read messages from standard-sized message blocks transmitted around the loop. One station in each loop provides regeneration of all message blocks. The various loops are interconnected by switching stations which respond to address information at the head of each message block to selectively switch the block to the interconnected loop. The next required address is always substituted for the current address to simplify address recognition. Alternate and redundant routing are also provided for.