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. 17, 1995
Filed:
Dec. 20, 1990
Applicant:
Inventors:
Robert B Hobgood, Raleigh, NC (US);
Jay L Smith, Raleigh, NC (US);
Robert D Verne, Chapel Hill, NC (US);
Anthony D Walker, Durham, NC (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; H04J / ; H04J / ; H04Q / ;
U.S. Cl.
CPC ...
371 112 ; 371 111 ; 371 206 ; 370 8515 ; 370 56 ; 370 161 ;
Abstract
A multiport access and reconfiguration unit for use in a dual token ring network is provided with three adapters and, depending on error conditions, can assume one of a plurality of recovery states in which a reconfigured single network is formed and at least one state in which an isolated single ring is formed in addition to the reconfigured ring.