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:
Feb. 27, 2007
Filed:
Oct. 22, 2003
Ernest C. Chen, San Pedro, CA (US);
Tung-sheng Lin, Claremont, CA (US);
Weizheng Wang, Rancho Palos Verdes, CA (US);
William C. Lindsey, Pasadena, CA (US);
Ernest C. Chen, San Pedro, CA (US);
Tung-Sheng Lin, Claremont, CA (US);
Weizheng Wang, Rancho Palos Verdes, CA (US);
William C. Lindsey, Pasadena, CA (US);
The DirecTV Group, Inc., El Segundo, CA (US);
Abstract
A method and apparatus for equalizing digital data signals is disclosed. The method comprises the steps of demodulating and decoding an input signal having input data to produce a data output, remodulating the data output to produce a training sequence including an idealized input signal, wherein the training sequence is comprised of adjacent symbols in the input data, and generating equalizer parameters from the training sequence. The apparatus comprises a demodulator (for demodulating an input signal to produce a data output), a modulator communicatively coupled to the demodulator (for remodulating the data output to produce a training sequence including an idealized input signal wherein the training sequence is comprised of adjacent symbols in the input data), and a parameter generation module communicatively coupled to the modulator (for generating equalizer parameters from the training sequence).