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. 13, 2021
Filed:
Dec. 13, 2019
Rambus Inc., Sunnyvale, CA (US);
Qi Lin, Los Altos, CA (US);
Brian Leibowitz, San Francisco, CA (US);
Hae-Chang Lee, Los Altos, CA (US);
Jihong Ren, Sunnyvale, CA (US);
Kyung Suk Oh, Cupertino, CA (US);
Jared L. Zerbe, Woodside, CA (US);
Rambus Inc., San Jose, CA (US);
Abstract
A receiver is equipped with an adaptive phase-offset controller and associated timing-calibration circuitry that together shift the timing for a data sampler and a digital equalizer. The sample and equalizer timing is shifted to a position with less residual inter-symbol interference (ISI) energy relative to the current symbol. The shifted position may be calculated using a measure of signal quality, such as a receiver bit-error rate or a comparison of filter-tap values, to optimize the timing of data recovery.