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:
Apr. 22, 2014
Filed:
Sep. 05, 2008
David Noeldner, Fort Collins, CO (US);
David Noeldner, Fort Collins, CO (US);
LSI Corporation, San Jose, CA (US);
Abstract
Various embodiments of the present invention provide systems and methods for phase identification in data processing systems. As one example, a circuit is disclosed that includes a bank of matched filters with two or more matched filters tuned to detect patterns corresponding to a timing pattern sampled using different phases of a sample clock. In particular, the bank of matched filters includes at least a first matched filter tuned to detect a first pattern corresponding to the timing pattern sampled using a first phase of a sample clock, and a second matched filter tuned to detect a second pattern corresponding to the timing pattern sampled using a second phase of the sample clock. The circuits further include a logic circuit operable to determine whether the sample clock is closer to the first phase or the second phase based on an output of the first matched filter and an output of the second matched filter.