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.

Date of Patent:
Jun. 22, 2004

Filed:

Apr. 07, 2000
Applicant:
Inventors:

Richard W. Citta, Oak Park, IL (US);

Scott M. LoPresto, Mt. Prospect, IL (US);

Jingsong Xia, Mundelein, IL (US);

Assignee:

Zenith Electronics Corporation, Lincolnshire, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03D 1/04 ;
U.S. Cl.
CPC ...
H03D 1/04 ;
Abstract

An equalizer that processes blocks of data includes a first finite filter which applies first finite filter coefficients to the blocks of data and a first post-processor which applies first post-processor coefficients to an output of the first finite filter. Ghosts of the blocks of data are not eliminated as a result of the application of the first finite filter coefficients and the first post-processor coefficients. The equalizer also includes a second finite filter which applies second finite filter coefficients to the blocks of data, and a second post-processor which applies second post-processor coefficients to an output of the second finite filter. Ghosts of the blocks of data are not eliminated as a result of the application of the second finite filter coefficients and the second post-processor coefficients. However, an adder adds outputs from the first and second post-processors so that ghosts of the blocks of data are eliminated from an output of the adder.


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