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 19 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A9). 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).

Encoder, decoder, transmission device, and reception device

Patent metadata
Field	Value
Publication number	US-2017302296-A9
Application number	US-201415035548-A
Country	US
Kind code	A9
Filing date	Nov 13, 2014
Priority date	Nov 15, 2013
Publication date	Oct 19, 2017
Grant date	—

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Title
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Abstract
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Abstract

Official abstract text for this publication.

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

Assignees

Japan Broadcasting Corp

Inventors

Classifications

H04L1/0057
Block codes (H04L1/0061, H04L1/0064 take precedence) · CPC title
H04L1/0041
Arrangements at the transmitter end · CPC title
H04L1/0045
Arrangements at the receiver end · CPC title
H03M13/1102
Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes · CPC title
H03M13/036Primary
Heuristic code construction methods, i.e. code construction or code search based on using trial-and-error · CPC title

Patent family

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View patent family 53057094

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What does patent US2017302296A9 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 19 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A9). 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).