Digital transmission system and method comprising a product code combined with a multidimensional modulation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 14, 2000
Grant Date -
N/A
app pub date -
Dec 9, 1997
filing date -
Dec 10, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A digital transmission system wherein the transmitter applies a systematic convolutional code to the input data to generate a product code in blocks, with trellis closure by adding redundant data comprising a parity code bit. The thus coded data are then allocated to symbols that have undergone multidimensional digital modulation. At the receiver, iterative decoding is performed in cascade along two paths by computing hard decision reliabilities for each sub-set of the multidimensional digital modulation so as to produce soft decisions. The second path utilizes the results produced by the first path to form soft decisions. The soft decisions enable determination of output symbols. The invention also relates to a data protection method implemented in such a system.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully