ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,381,577, issued on Aug. 5, was assigned to AIRBUS DEFENCE AND SPACE SAS (Toulouse, France).
"Stop criterion for decoding an LDPC code" was invented by Lyonel Barthe (Toulouse, France) and Benjamin Gadat (Toulouse, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "An LDPC decoding method is disclosed in which the LDPC code is defined by a parity matrix having a layered structure, and the method involves performing iterations until a stop criterion is satisfied. Each iteration involves the successive processing of the different layers. Processing a layer involves calculating variable messages (an,m), calculating parity check messages, calculating a pos...