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:
Jan. 29, 2002
Filed:
Aug. 03, 1999
Institute for Information Industry, Taipei, TW;
Abstract
A stackable UTOPIA switching device for use in an Asynchronous Transfer Mode switch is provided to connect to more digital subscriber lines (DSL). The inventive UTOPIA switching device can work along or be arranged in a tree-like hierarchy to connect to more DSLs. The UTOPIA switching device comprises an Up-link end and a down-link end. The down-link end can connect to 31 slave multiplexers or physical layers at the most. The up-link end can connect to master USD or slave USD. Both the up-link end and the down-link end have three input queues and an output queue for storing the cells. The cells are stored in the input queues and the output queues according to the control of a priority queuing logic circuits.