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. 28, 2015
Filed:
Jun. 10, 2014
Marvell International Ltd., Hamilton, BM;
Runsheng He, Sunnyvale, CA (US);
Marvell International Ltd., Hamilton, BM;
Abstract
A transceiver including an equalizer and a control circuit. The equalizer receives an input signal and first coefficients. The equalizer includes taps that, based on the first coefficients, filter the input signal to generate an output signal. The taps include a precursor tap, a unity tap and postcursor taps. The control circuit selects the first coefficients such that a sum of the first coefficients is equal to a predetermined value. The first coefficients include a precursor coefficient, a second coefficient, and post cursor coefficients corresponding respectively to the precursor tap, the unity tap, and the postcursor taps. The control circuit: maintains the second coefficient at a fixed value; based on the second coefficient, selects the precursor coefficient and the postcursor coefficients; and while maintaining the second coefficient at the fixed value and while the equalizer is receiving the input signal, adjusts the precursor coefficient or one of the postcursor coefficients.