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:
Jan. 27, 2009
Filed:
Oct. 22, 2003
Weizheng W. Wang, Rancho Palos Verdes, CA (US);
Tung-sheng Lin, Alhambra, CA (US);
Ernest C. Chen, San Pedro, CA (US);
William C. Lindsey, Pasadena, CA (US);
Weizheng W. Wang, Rancho Palos Verdes, CA (US);
Tung-Sheng Lin, Alhambra, CA (US);
Ernest C. Chen, San Pedro, 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 pseudo-training sequence including an idealized input signal, and generating equalizer parameters from the pseudo-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 pseudo-training sequence including an idealized input signal, and a parameter generation module, communicatively coupled to the modulator for generating equalizer parameters from the pseudo-training sequence.