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. 30, 2016
Filed:
Jun. 26, 2014
Sandisk Enterprise Ip Llc, Dallas, TX (US);
Xinmiao Zhang, Seattle, WA (US);
Ying Yu Tai, Mountain View, CA (US);
SANDISK TECHNOLOGIES LLC, Plano, TX (US);
Abstract
A quasi-cyclic low-density parity-check (QC-LDPC) encoder includes a Fourier transform circuit configured to receive an input message and to generate a transformed message based on the input message. The transformed message includes leading symbols with indices corresponding to leading elements of cyclotomic cosets of a finite field with respect to a subfield. The QC-LDPC encoder further includes a matrix multiplier circuit configured to multiply the leading symbols of the transformed message by leading symbols of a transformed LDPC generator matrix to generate leading symbols of transformed parity symbols associated with an LDPC codeword. The QC-LDPC encoder is configured to provide the leading symbols of the transformed parity symbols to an inverse Fourier transform circuit to generate parity information of the LDPC codeword.