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. 05, 2002
Filed:
Sep. 24, 1998
The University of Tokyo, , JP;
Abstract
In a system for switching high-capacity and variable length packets from m input ports to n output ports, k Banyan networks are connected into a ring by means of at least n parallel lines, said input ports are connected to inputs of said Banyan networks in a dispersed manner by means of m input modules, misroute tag check parts are connected to outputs of said Banyan networks as well as to inputs of n output modules whose outputs are connected to said output ports. Each of plural unit switches constituting a Banyan network is constructed such that when an input packet cannot be sent to a desired output, the relevant packet is outputted to a non-occupied output of the relevant Banyan network. When the misroute tag check part finds that the misroute tag is set, the relevant packet is sent to a next stage Banyan network, but when the misroute check tag is not set, the relevant packet is outputted to an output module connected to a desired output. The input module stores a packet from the input port and a packet from a misroute tag check part and sends one of these packets selectively to a succeeding Banyan network.