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:
Jul. 06, 2010
Filed:
Dec. 01, 2006
Paul A. M. Bune, Kornwestheim, DE;
Paul A. M. Bune, Kornwestheim, DE;
Alcatel Lucent, Paris, FR;
Abstract
An aspect of the invention relates to a digital generator for multi-carrier frequency division multiplexing (FDM) signals. The digital generator comprises an electronic circuit being operated under the control of a computer program. The digital generator is configured to generate FDM signals being comprised of FDM symbols, wherein at least one FDM symbol has pilot symbols which are non-equidistantly spaced in frequency. Another aspect of the invention relates to a digital receiver for multi-carrier FDM signals. The digital receiver comprises an electronic circuit being operated under the control of a computer program, and further comprises a demodulator for demodulating digital multi-carrier FDM signals, said signals being comprised of FDM symbols having pilot symbols, the pilot symbols of at least one FDM symbol being non-equidistantly spaced in frequency. Furthermore, it comprises a signal modification unit, said unit being configured to replace, on a sub-carrier basis, at least one data symbol with a pilot symbol, whereby the replacement yields a spacing of pilot symbols which is equidistant in frequency for all FDM symbols.