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:
Aug. 18, 1998
Filed:
Mar. 20, 1996
Applicant:
Inventors:
Americo Brajal, Villeneuve-Le-Roi, FR;
Antoine Chouly, Paris, FR;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H / ;
U.S. Cl.
CPC ...
375232 ; 375229 ; 3647242 ;
Abstract
A digital transmission system comprising a receiver with cascaded equalizers. The transmission system may also include multicarrier modulation means and multicarrier demodulation means comprising a semi-fixed equalizer cascaded with an adaptive equalizer. The semi-fixed equalizer equalizes the relatively stable or slowly and/or slightly changing imperfections which are due to the channel and the adaptive equalizer equalizes the imperfections which are due to transmission noise. The invention likewise relates to a process for determining the characteristics of the semi-fixed equalizer.