The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 1986
Filed:
Feb. 06, 1984
Applicant:
Inventors:
Conrad Lewis, Nepean, CA;
Gino Totti, Kanata, CA;
Assignee:
Mitel Corporation, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q / ;
U.S. Cl.
CPC ...
370 58 ; 3701101 ;
Abstract
A digital switching system which is comprised of a circuit switching network under control of a main system control for carrying and switching transmission paths for signals transmitted between peripherals (i.e. lines, trunks, service circuits, etc.), and a separate message switching network under control of the main system control for carrying supervisory and control signals related to the status of the peripherals between peripheral unit management circuit controller(s) and the main system control.