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:
Jul. 10, 2018
Filed:
May. 18, 2017
Applicant:
Entropic Communications, Llc, Carlsbad, CA (US);
Inventors:
Shaw Yuan, San Diego, CA (US);
Zong Liang Wu, San Diego, CA (US);
David Barr, San Jose, CA (US);
Shachar Kons, San Diego, CA (US);
Assignee:
Entropic Communications, LLC, Carlsbad, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/00 (2006.01); H03M 13/11 (2006.01); H03M 13/03 (2006.01);
U.S. Cl.
CPC ...
H03M 13/1102 (2013.01); H03M 13/036 (2013.01); H03M 13/116 (2013.01); H03M 13/1177 (2013.01); H03M 13/616 (2013.01);
Abstract
An LDPC parity check matrix includes a systematic portion having a plurality of systematic elements and a parity portion having a plurality of parity elements. The value of each systematic element determines a cyclic shift to be applied to rows of an identity submatrix corresponding to that element. The value of each parity element determines a cyclic shift to be applied to rows of an identity submatrix corresponding to that element. The weights of two or more columns of the parity portion are the same.