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:
Jul. 04, 1989
Filed:
Apr. 19, 1988
Applicant:
Inventors:
Edward C Posner, Pasadena, CA (US);
Patrick Smyth, Pasadena, CA (US);
Assignee:
Pacific Bell, San Francisco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ; H04B / ;
U.S. Cl.
CPC ...
379 27 ; 379272 ;
Abstract
The invention comprises an improved cross-connect switch constructed from a plurality of switch modules for connecting input lines to output lines. The improved switch includes a test access system in which selected input or output lines of the cross-connect switch are utilized as test ports. The switch utilizes computer algorithms to make connections between a test port and one of the switch modules through which a path connecting specified input and output lines passes to make a bridging connection to the path.