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:
Apr. 28, 1998
Filed:
Oct. 26, 1995
Maged E Beshai, Stittsville, CA;
Ernst A Munter, Kanata, CA;
Northern Telecom Limited, Montreal, JP;
Abstract
An ATM switch architecture expandable to multi-terabits/s uses data transfer in a heterogeneous burst of a constant length. It employs rotators connecting stages in a three-stage switch configuration. In one embodiment, the cells are sorted at ingress and a matching process is performed between the first and middle stages. The switch is simple to control and has high performance at both the call and cell levels. It also meets the basic requirements that cells be delivered in the proper order, and that the rate of any individual connection be as high as the inlet-port rate. With a small internal expansion, the switch is non-blocking in the sense that any bit-rate acceptable to both the inlet and outlet ports will be guaranteed a path through the core. This feature is particularly useful in services which may require frequent bit-rate change during the connection time.