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:
Oct. 15, 2019
Filed:
Feb. 04, 2019
Globalfoundries Inc., Grand Cayman, KY;
Krishnan S. Rengarajan, Bangalore, IN;
Vaibhav A. Ruparelia, Bengaluru, IN;
Panduga Shiva Shankar Reddy, Nagarkurnool, IN;
GLOBALFOUNDRIES INC., Grand Cayman, KY;
Abstract
Disclosed is a power-optimized distributed arithmetic (DA)-based feed forward equalizer (FFE) that performs on-demand equalization processing of a data sample. Specifically, a data stream is represented by digital words, which indicate signal levels at taps on a transmission medium. A screener applies formulas to selected taps as opposed to all taps (e.g., to the main cursor tap, which corresponds to the current data sample, and to specific pre-cursor and post-cursor taps, which correspond to immediately proceeding and following data samples) to determine whether the current data sample (which should indicate a specific two-bit symbol) has degraded during transmission to a point where equalization processing is required. If so, a bypass flag is set to a first level so that the data sample is subjected to equalization processing. If not, the bypass flag is set to a second level so that such processing is bypassed. Also disclosed is a corresponding method.