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:
Nov. 10, 1987
Filed:
Nov. 29, 1985
William A Payne, III, Lombard, IL (US);
American Telephone and Telegraph Co., AT&T Bell Labs, Murray Hill, NJ (US);
Abstract
A switching system having a control network for establishment of a path and a data switching network responsive to the path determined by the control network for switching data between a plurality of input ports to a plurality of output ports. The control network is a self-routing network that is fabricated utilizing electronic devices; whereas, the data switching network is fabricated using photonic devices. The electronic network is of the butterfly architecture and the photonic network is of the cross-bar architecture. A translation circuit is utilized to convert the path determined through the self-routing butterfly control network for use in determining the path through the photonic cross-bar network.