Patent · US Active

Circulant processing scheduler for layered LDPC decoder

US8495453B1 · kind B1 · utility

7Cited by

3References

20Claims

0Family size

Assignee

Marvell International Ltd. · BM

Inventors

Nedeljko Varnica · San Jose, US
Engling Yeo · San Jose, US
Farshid Rafiee Rad · Sunnyvale, US

Key dates

Filing date	Oct 15, 2012
Grant date	Jul 23, 2013
Priority date	—
Expiry date	Oct 15, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH03M13/4146
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Systems and methods for decoding low density parity check (LDPC) codes are provided. An input message, representing a codeword encoded using a parity check matrix, is processed and data associated with each of the layers of the parity check matrix is computed. A first layer of the parity check matrix includes a first circulant configured to be updated using the data associated with a second layer of the parity check matrix. A second circulant in the first layer of the parity check matrix, configured to be updated using the data associated with the second layer of the parity check matrix, is identified. The first and second circulants are updated using the data associated with the first and second layers of the parity check matrix.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.