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:
Oct. 20, 1992
Filed:
Dec. 18, 1990
Arturo Cisneros, Lincroft, NJ (US);
Bell Communications Research, Inc., Livingston, NJ (US);
Abstract
Apparatus, and accompanying methods for use therein, for a large (e.g. approximately 1 Terabit/second), fault tolerant packet switch (200), particularly suited for asynchronous mode transfer (ATM) communication, which utilizes cell address look-ahead in conjunction with parallel, planes of self-routing cross-points (550), staggered time phased contention resolution and shared memory based input and output modules (260 and 270, respectively). The contention resolution involves storing for each input packet in two registers the address of the incoming packet and an indication of whether that packet had priorly lost a contention resolution. In that way a fairness factor is added to the contention resolution.