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:
Nov. 21, 2006
Filed:
Jul. 29, 2003
Kris Gilbert Achiel Demuynck, Wilrijk, BE;
Frank Octaaf Van Der Putten, Leest, BE;
Kris Gilbert Achiel Demuynck, Wilrijk, BE;
Frank Octaaf Van der Putten, Leest, BE;
Alcatel, Paris, FR;
Abstract
Systems () with interleavers () for interleaving data units and with de-interleavers () for de-interleaving data units, are made more efficient and less complex by storing data units in the form of stacks in the memories () of said interleavers () and said de-interleavers (), by calculating stack positions for data units to be (de)interleaved, and by adapting stacks through shifting before the interleaving or after the de-interleaving. Such a system () does not require more than [(N−1)(D−1)]/2 memory elements, the theoretical memory size for the block length N and the interleaving depth D. Said data units are stored at subsequent positions, with said data units at said subsequent positions being adapted through shifting before the interleaving or after the de-interleaving to further subsequent positions. An interleaver () comprises a calculator (), a shifter () and an inserter (). A de-interleaver () comprises a calculator (), an extracter () and a shifter ().