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:
Mar. 31, 2020
Filed:
May. 24, 2018
International Business Machines Corporation, Armonk, NY (US);
John G. Rell, III, Austin, TX (US);
Michael W. Harper, Round Rock, TX (US);
Mack W. Riley, Austin, TX (US);
Michael B. Spear, Round Rock, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Method and apparatus for packeted analysis, comprising: testing a phase rotator at a plurality of phase rotator positions, by propagating a first series of bits of a first pattern through a channel of an integrated circuit; propagating a second series of bits of a second pattern through the channel; measuring, for the given phase rotator position, a value of each bit propagated through the channel; and in response to determining that measured values of the bits propagated through the channel conform to one of the first pattern and the second pattern, indicating that the given phase rotator position satisfies an accuracy threshold; determining a sequence of phase rotator positions of the plurality of phase rotator positions in which the accuracy threshold is satisfied; and in response to determining that the sequence of phase rotator positions does not satisfy an eye width threshold, failing the channel of the integrated circuit.