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:
Mar. 26, 2013
Filed:
Aug. 14, 2009
Jonathan S. Yedidia, Cambridge, MA (US);
Yige Wang, Natick, MA (US);
Stark C. Draper, Madison, WI (US);
Jonathan S. Yedidia, Cambridge, MA (US);
Yige Wang, Natick, MA (US);
Stark C. Draper, Madison, WI (US);
Mitsubishi Electric Research Laboratories, Inc., Cambridge, MA (US);
Abstract
A code to be decoded by message-passing is represented by a factor graph. The factor graph includes variable nodes indexed by i and constraint nodes indexed by a connected by edges for transferring messages moutgoing from the variable nodes to the constraint nodes and messages mincoming from the constraint nodes to the variable nodes. The messages mare initialized based on beliefs bof a received codeword. The messages mare generated by overshooting the messages mat the constraint nodes. The beliefs bare updated at the variable nodes using the messages m. The codeword is outputted if found, otherwise, the messages mare updated using a correction for the overshooting.