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. 25, 2003
Filed:
Nov. 04, 1999
Kalman Cinkler, Bremen, DE;
Karl Dirk Kammeyer, Buchholz, DE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
To provide an approach to correction of residual errors in subband-based transmission schemes there is provided a channel error correction apparatus with a first synthesis unit for synthesizing a preliminary output signal from subband signals received via a transmission channel. A subband correcting is achieved through a subband reanalysis unit analyzing the preliminary output signal through subband filtering without downsampling, an error estimation unit estimating errors in subband reanalysis output signals using subband specific error patterns, and an error compensation unit correcting the subband signals using error estimation results. A second synthesis unit then synthesizes a final output signal from output signals of the error compensation unit.