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:
Jul. 01, 2014
Filed:
Jun. 14, 2011
Frank D. Ferraiolo, Essex Junction, VT (US);
William R. Kelly, Verbank, NY (US);
Robert J. Reese, Austin, TX (US);
Susan M. Rubow, Hyde Park, NY (US);
Michael B. Spear, Round Rock, TX (US);
Frank D. Ferraiolo, Essex Junction, VT (US);
William R. Kelly, Verbank, NY (US);
Robert J. Reese, Austin, TX (US);
Susan M. Rubow, Hyde Park, NY (US);
Michael B. Spear, Round Rock, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A communications link of multiple parallel communications lines includes at least one redundant line. In a first aspect, the lines are periodically recalibrated one at a time while the others carry functional data. If a fault is detected, the faulty line is disabled and the remaining previously calibrated lines transmit functional data. In a second aspect, impending line malfunction is detected from anomalies during calibration. In a third aspect, line malfunction is detected from receiver circuit output by determining a logical lane upon which each detected error occurs, and by mapping the logical lane to a physical line currently carrying the logical lane data.