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:
Aug. 21, 2007
Filed:
Oct. 30, 2003
Alain Blanc, Tourrettes sur Loop, FR;
Patrick Jeanniot, La Gaude, FR;
Alain Blanc, Tourrettes sur Loop, FR;
Patrick Jeanniot, La Gaude, FR;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and systems for analyzing the quality of high-speed signals, when signals can not be over-sampled due to sampler clock rates, is disclosed. According to the method of the invention, the position of a phase rotator is moved from one end to the other and data are sampled at each position (). Then, data are formatted () to obtain a global value characterizing the signal behavior. Finally, this global value is corrected () to remove signal transition falsely detected too early. The use of the phase rotator multiplies artificially the number of sampling positions.