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:
Dec. 13, 2005
Filed:
Mar. 30, 2001
Vuong Kim Le, Milpitas, CA (US);
Hai Thanh Nguyen, San Jose, CA (US);
Sushma Chandrasekaran, Milpitas, CA (US);
Yu-sheng Yang, Cupertino, CA (US);
Vuong Kim Le, Milpitas, CA (US);
Hai Thanh Nguyen, San Jose, CA (US);
Sushma Chandrasekaran, Milpitas, CA (US);
Yu-Sheng Yang, Cupertino, CA (US);
Other;
Abstract
An adaptive equalizer system and method uses an averaging algorithm to adjust equalization and amplitude for a data signal. Two sampled data points, spanning a sampling window, are obtained from the equalized signal. The data points are evaluated to determine when a signal condition persists long enough to require equalization adjustment, as well as evaluating persistent conditions in the amplitude of the received data signal. By monitoring persistent conditions in the equalized signal, the average signal received by the equalizer is compensated. The bit resolution of the equalizer control and the amplitude control can be selected for a desired resolution in a system. The incoming data signal is used to generate the requisite timing signals for sampling and control such that high frequency clock circuits and PLL techniques are unnecessary resulting in lower power consumption and reduced costs.