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. 18, 1984
Filed:
Feb. 04, 1982
Edward H Hafer, Winfield, IL (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
A time division switching system having distributed control processors is disclosed. The switching system includes time-slot interchange units having associated subscriber sets and conference circuits and a time-shared space division network for interconnecting the time-slot interchange units. Each of the time-slot interchange units and the time-shared space division network are controlled by separate control processors. In response to called subscriber set identifying information from a calling subscriber set, the control processor associated with the time-shared space division network completes standard communication paths through the time-shared space division network to connect the time-slot interchange units associated with the calling and called subscriber set. Standard communication paths are replaced with conference paths which include a conference circuit, by establishing the conference path, transmitting information on both the standard and conference paths, and selectively releasing the standard path when continuity can be assured on the conference path.