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:
Oct. 24, 2006
Filed:
Feb. 03, 2003
Nick Andrew Van Stralen, Schenectady, NY (US);
Stephen Michael Hladik, Albany, NY (US);
Abdallah Mahmoud Itani, Ballston Spa, NY (US);
Robert Gideon Wodnicki, Schenectady, NY (US);
John Anderson Fergus Ross, Del Mar, CA (US);
Nick Andrew Van Stralen, Schenectady, NY (US);
Stephen Michael Hladik, Albany, NY (US);
Abdallah Mahmoud Itani, Ballston Spa, NY (US);
Robert Gideon Wodnicki, Schenectady, NY (US);
John Anderson Fergus Ross, Del Mar, CA (US);
General Electric Company, Schenectady, NY (US);
Abstract
A turbo decoder control comprises an address generator for addressing systematic data, parity data, and systematic likelihood ratios according to a pre-determined memory mapping. The systematic data samples are accessed in the order required by the MAP decoding algorithm such that interleaving and de-interleaving functions in the MAP decoding algorithm are performed in real-time, i.e., without delay. Such memory-mapping in combination with data handling functions (e.g., multiplexing and combinatorial logic) minimizes memory requirements for the turbo decoder and allows for use of programmable interleavers, variable block lengths, and multiple code rates.