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:
Aug. 28, 2012
Filed:
Oct. 30, 2009
Xinde HU, San Diego, CA (US);
Sivagnanam Parthasarathy, Carlsbad, CA (US);
Shayan Srinivasa Garani, San Diego, CA (US);
Anthony Weathers, San Diego, CA (US);
Richard Barndt, San Diego, CA (US);
Xinde Hu, San Diego, CA (US);
Sivagnanam Parthasarathy, Carlsbad, CA (US);
Shayan Srinivasa Garani, San Diego, CA (US);
Anthony Weathers, San Diego, CA (US);
Richard Barndt, San Diego, CA (US);
STMicroelectronics, Inc., Carrollton, TX (US);
Abstract
To allow a single LDPC decoder to operate on both 512 B blocks and 4 KB blocks with comparable error correction performance, 512 KB blocks are interlaced to form a 1 KB data sequence, and four sequential 1 KB data sequences are concatenated to form a 4 KB sector. A de-interlacer between the detector and decoder forms multiple data sequence from a single data sequence output by the detector. The multiple data sequences are separately processed by a de-interleaver between the de-interlacer and the LDPC decoder, by the LDPC decoder, and by an interleaver at the output of the LDPD decoder. An interlacer recombines the multiple data sequences into a single output. Diversity may be improved by feeding interleaver seeds for respective codewords into the de-interleaver and interleaver during processing.