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:
May. 12, 2009
Filed:
Sep. 11, 2002
Werner Henkel, Achim, DE;
Valentin Zrno, Vienna, AT;
Werner Henkel, Achim, DE;
Valentin Zrno, Vienna, AT;
Infineon Technologies AG, Munich, DE;
Abstract
During data transmission by multi-carrier modulation of data blocks modulated by Inverse Discrete Fourier Transformation (IDFT), carriers that are not occupied by data are occupied in such a way as to generate temporal functions that, after filtration, are Dirac-like temporal functions that reach maxima in an oversampled temporal resolution of different, preferably adjacent positions. A pair of the oversampled Dirac-like temporal functions and corresponding filter input functions that are not oversampled is iteratively selected. The pair is displaced to a position of a peak value resulting from the data occupation of the remaining carriers, subtracted from the oversampled Dirac-like temporal functions after being weighted and, as iterative modifications, applied in parallel to the Dirac-like temporal functions and a corresponding temporal signal without oversampling and without filtration.