Patent ID: 8489960

Claim:
A communications device, comprising: a low-density parity check (LDPC) encoder configured to (i) receive data, and (ii) in response to the received data, generate encoded data using a predetermined LDPC matrix, wherein the predetermined LDPC matrix is specified by a predetermined base matrix, and wherein the predetermined base matrix is: 35 71 56 55 — — 23 34 — — — 71 6 48 70 42 30 — 20 — — — 58 — 13 1 68 59 45 26 — — 55 — — — 74 2 61 30 — 34 — — 36 — 9 — 35 15 4 20 57 — 34 — — 79 — — 40 50 49 14 79 — 1 — — 12 65 — 46 78 78 46 — 40 — 80 17 — — 8 10 22 40 17 — 48 — 38 — 18 — 72 — 3 — 72 1 0 — — — — — — 14 — — 12 — 0 0 — — — — — 20 — — 20 — — 0 0 — — — — 50 — 46 — — — — 0 0 — — — — — 30 — 0 — — — 0 0 — — — — 20 — — — — — — 0 0 — — 6 — — — — — — — — 0 0 — 54 — — 1 — — — — — — 0; and a transmitter configured to transmit the encoded data over a communications channel.