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:
May. 19, 2020
Filed:
May. 04, 2018
Mediatek Inc., Hsin-Chu, TW;
Cheng-Yi Hsu, Hsinchu, TW;
Chong-You Lee, Hsinchu, TW;
Wei Jen Chen, Hsinchu, TW;
Maoching Chiu, Hsinchu, TW;
Timothy Perrin Fisher-Jeffes, San Jose, CA (US);
Ju-Ya Chen, Hsinchu, TW;
Yen Shuo Chang, Hsinchu, TW;
MEDIATEK INC., Hsin-Chu, TW;
Abstract
An apparatus determines a code block size (CBS) of information bits contained in a codeword of low-density parity check (LDPC) coding. The apparatus compares the CBS with at least one threshold, determines, based on a result of the comparison, a Kb number and determines a Kp number based on a code rate and the Kb number. The apparatus generates a parity check matrix. An information portion of the parity check matrix is a first matrix formed by M number of second square matrices. M is equal to Kp multiplied by Kb. A total number of columns in the Kb number of second square matrices is equal to a total number of bits of the CBS. One or more matrices of the M number of second square matrices are circular permutation matrices. The apparatus operates an LDPC encoder or an LDPC decoder based on the parity check matrix.