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:
Feb. 21, 1989
Filed:
Sep. 18, 1987
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 ...
H04Q / ;
U.S. Cl.
CPC ...
379272 ; 340826 ;
Abstract
A cross-connect switch having different numbers of input and output lines is described. The switch is constructed from an odd number of stages. Each stage is constructed from a plurality of switch modules. Embodiments which require at most two different types of switch modules are described. Other embodiments which utilize at most two different types of switch modules are also described.