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. 02, 1996
Filed:
Nov. 10, 1994
Gang Huang, Middletown, NJ (US);
AT&T Corp., Murray Hill, NJ (US);
Abstract
A bridge connected to an FDDI network preprocesses messages each comprising source address (SA), destination address (DA) and data, using a data base of SA's maintained in a content addressable memory (CAM). A finite state machine working with the other elements of the FDDI bridge acts as an intelligent controller, to select which messages are to be passed to a buffer memory for further processing and ultimate transmission to a remote network. Messages are only passed to the buffer memory if the DA is different from the SA's stored in the CAM. Circuitry is advantageously provided not only to 'teach' the CAM about SA's on the network, but also to monitor information relating to the the last activity in a station associated with a particular SA, so that 'stale' SA's can be purged from the CAM.