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:
Jan. 26, 2016
Filed:
Mar. 18, 2014
Applicant:
Rai Radiotelevisione Italiana S.p.a., Rome (RM), IT;
Inventors:
Giovanni Vitale, Turin, IT;
Vittoria Mignone, Piobesi Torinese, IT;
Assignee:
RAI RADIOTELEVISIONE ITALIANA S.P.A., Rome, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M 13/00 (2006.01); H03M 13/27 (2006.01); H03M 13/11 (2006.01); H03M 13/25 (2006.01); H04L 27/34 (2006.01); H04L 27/04 (2006.01); H04L 1/00 (2006.01);
U.S. Cl.
CPC ...
H03M 13/2778 (2013.01); H03M 13/1102 (2013.01); H03M 13/1165 (2013.01); H03M 13/255 (2013.01); H04L 1/0041 (2013.01); H04L 1/0045 (2013.01); H04L 1/0071 (2013.01); H04L 27/04 (2013.01); H04L 27/34 (2013.01); H04L 1/0057 (2013.01);
Abstract
Methods for digital signal processing and transmission/reception systems utilizing the methods based on the use of LDPC codes, for example the LDPC code with a 3/5 code rate, in combination with a QAM modulation, for example the 16 QAM or 64 QAM or 256 QAM modulation. In transmission, a bit permutation (Demux) is carried out prior to the QAM constellation mapping function, and in reception, the bit permutation is carried out after the QAM constellation demapping function.