03974343 is referenced by 82 patents and cites 3 patents.

A telephone central office switching system with economical application to small community dial office sizes is disclosed. Communication paths are spatially switched over a modular network fabric comprised of electromechanically actuated metallic crosspoints. A distributed control concept is employed wherein the logic power and flexibility of electronic stored program control is spread over many points in the system. Serial asynchronous messages between any two control elements are routed via a central information exchange unit whose number of communication ports is easily changed on a pluggable basis. Modularity is emphasized throughout the switching system for facile growth and additions of feature-oriented service packages.

Title
Small modular communications switching system with distributed programmable control
Application Number
5/540077
Publication Number
3974343
Application Date
January 10, 1975
Publication Date
August 10, 1976
Inventor
Anatol Kuczura
Worthington
OH, US
Thomas K Cheney
Prospect
OH, US
Agent
Johnson Dienner Emrich & Wagner
Assignee
North Electric Company
OH, US
IPC
H04Q 3/54
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