Method and apparatus for encoding and decoding of low density parity check codes
US-2024048158-A1 · Feb 8, 2024 · US
Encoder, decoder, transmission device, and reception device
US2016294417A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016294417-A1 |
| Application number | US-201415035548-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 13, 2014 |
| Priority date | Nov 15, 2013 |
| Publication date | Oct 6, 2016 |
| Grant date | — |
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- Title
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Abstract
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A transmission device and reception device for digital data that have excellent resistance to noise are provided. An encoder ( 11 - 1 ) of this disclosure, included in a transmission device ( 1 ) of this disclosure, applies LDPC encoding to digital data using a unique check matrix for each code rate by using a check matrix in which, taking a check matrix initial value table established in advance for each code rate at a code length of 44880 bits as initial values, 1 entries of a partial matrix corresponding to an information length appropriate for a code rate of 93/120 are allocated in the column direction over a cycle of 374 columns. A demodulator ( 23 ) of this disclosure, included in a reception device ( 2 ) of this disclosure, decodes digital data encoded by the encoder ( 11 - 1 ).
First claim
Opening claim text (preview).
1 . An encoder that applies LDPC encoding to digital data using a unique check matrix for each code rate, the encoder applying LDPC encoding by using a check matrix in which, taking a check matrix initial value table established in advance for each code rate at a code length of 44880 bits as initial values, 1 entries of a partial matrix corresponding to an information length appropriate for a code rate of 93/120 are allocated in a column direction over a cycle of 374 columns. 2 . The encoder of claim 1 , wherein the check matrix initial value table for the code rate of 93/120 consists of the following table: [Check Matrix Initial Value Table for Code Rate of 93/120] 521 781 2081 2419 3589 5877 6085 6267 6657 1769 2029 2315 5799 6215 7255 7281 7385 9361 547 651 1873 2159 2471 7671 8581 8659 8919 2107 3069 3953 4851 5851 8555 9113 8815 9049 131 4935 5038 5565 6406 7515 7593 8074 7905 495 1821 2705 3095 3485 7459 8452 8503 8841 638 880 2073 2426 5014 6475 7307 8968 9179 27 910 2731 3199 4915 7923 8061 9543 9595 869 3081 3396 4109 6137 6345 7320 7880 8619 2226 1979 2178 4701 5331 6423 9738 9224 9491 2353 2937 4337 3458 4496 4375 4889 9532 9725 9138 1381 1809 1449 1535 4655 8303 8113 8269 4855 7552 6470 8936 7994 7002 9233 9174 9647 1991 6823 3584 6083 6115 5899 7302 7463 8529 2777 2603 2707 3615 3823 5123 6995 9153 573 1941 7936 7524 7112 7047 9023 9673 1892 1847 2689 7176 7661 8559 7801 9465 7764 7894 7957 3756 5481 8893 3403 7657 8373 3572 4670 4343 8924 7853 8217 4000 6095 9101 1743 6759 7541 1249 7827 9439 3312 5833 7177 3017 5985 5773 497 5080 9231 1301 5407 4837 878 2598 2887 7100 5900 6605 2644 5537 8243 4601 5311 5253 6722 8930 9777 3332 4132 5227 8551 8991 9335 2419 2602 4421 5390 4626 8035 4110 5955 7879 2589 5643 6709 917 6697 8139 838 7638 9517 1230 2913 7619 2497 3519 5903 3307 4131 4577 5096 5435 7021 4121 7554 9621 6742 5965
Assignees
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Classifications
- H03M13/036Primary
Heuristic code construction methods, i.e. code construction or code search based on using trial-and-error · CPC title
Bose-Chaudhuri-Hocquenghem [BCH] codes · CPC title
Arrangements at the receiver end · CPC title
Arrangements for detecting or preventing errors in the information received {(correcting synchronisation H04L7/00)} · CPC title
using block codes (H03M13/2957 takes precedence) · CPC title
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- What does patent US2016294417A1 cover?
- A transmission device and reception device for digital data that have excellent resistance to noise are provided. An encoder ( 11 - 1 ) of this disclosure, included in a transmission device ( 1 ) of this disclosure, applies LDPC encoding to digital data using a unique check matrix for each code rate by using a check matrix in which, taking a check matrix initial value table established in advan…
- Who is the assignee on this patent?
- Japan Broadcasting Corp
- What technology area does this patent fall under?
- Primary CPC classification H03M13/036. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Oct 06 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).