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:
Jun. 06, 2006
Filed:
Nov. 07, 2002
Hongwei Song, Pittsburgh, PA (US);
Vijayakumar Bhagavatula, Upper St. Clair, PA (US);
Jingfeng Liu, Shrewsbury, MA (US);
Hongwei Song, Pittsburgh, PA (US);
Vijayakumar Bhagavatula, Upper St. Clair, PA (US);
Jingfeng Liu, Shrewsbury, MA (US);
Carnegie Mellon University, Pittsburgh, PA (US);
Abstract
A method for communicating binary data and a digital communication system are presented. According to one embodiment, the method includes encoding a message word by multiplying the message word with a generator matrix, wherein the generator matrix multiplied by the transpose of a parity check matrix for a low density parity check code yields a null set, and wherein the parity check matrix has a column weight of two. Additionally disclosed is an encoding scheme based on a three-tier Tanner graph having a girth of twelve.