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. 04, 2003
Filed:
Jul. 09, 1999
Robert Morelos-Zaragoza, Sunnyvale, CA (US);
Shu Lin, Honolulu, HI (US);
Marc Fossorier, Honolulu, HI (US);
LSI Logic Corporation, Milpitas, CA (US);
Abstract
A method and apparatus for multi-level encrypted encoding and decoding of digital signals, which includes utilizing only one type of encoder and one type of decoder. This can be either the same encoder and decoder used in throughout the process, or multiple, identical encoders and decoders. This allows the system to compensate for atmospheric degradation with higher bandwidth efficiency and a simplified receiver structure. The invention further identifies a 2 symbol generation technique that maps in disjoint regions of X-dimensional space, which allows different data bits to be eliminated from the decoding scheme and maximizes the number of independent data substreams that can be maintained.