| RAI Radiotelevisione Italiana S.p.A. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110122960 | Method for Processing Digital Signals, and Transmission/Reception System Implementing Said Method - The present invention relates to a method for processing digital signals and to a transmission/reception system implementing said method; the present invention is based on the use of LDPC codes, in particular the LDPC code of the DVB-S2 standard, in combination with a QAM modulation, in particular the 1024QAM and 4096QAM modulations; in transmission, a bit permutation (Demux) is carried out prior to the QAM constellation mapping function; in reception, the bit permutation is carried out after the QAM constellation demapping function. | 05-26-2011 |
| 20110103502 | METHODS FOR DIGITAL SIGNAL PROCESSING AND TRANSMISSION/RECEPTION SYSTEMS UTILIZING SAID METHODS - Methods for digital signal processing and transmission/reception systems utilizing the methods based on the use of LDPC codes, for example a LDPC code with a 3/5 code rate, in combination with a QAM modulation, for example the 16QAM or 64QAM or 256QAM 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. | 05-05-2011 |
