QC-LDPC coding methods and apparatus
US-10164659-B2 · Dec 25, 2018 · US
Theoretical methods to calculate these checking codes
Theoretical methods to calculate these checking codes · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03M13/033 |
| Official title | {Theoretical methods to calculate these checking codes} |
| Display label | Theoretical methods to calculate these checking codes |
| Total patents | 208 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 9 |
| 2017 | 18 |
| 2018 | 24 |
| 2019 | 25 |
| 2020 | 27 |
| 2021 | 27 |
| 2022 | 17 |
| 2023 | 14 |
| 2024 | 13 |
| 2025 | 15 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Error correcting code for correcting single symbol errors and detecting double bit errors
US-2018343018-A1 · Nov 29, 2018 · US
Error correction using WOM codes
US-10133626-B2 · Nov 20, 2018 · US
Enhanced Polarization Weighting to Enable Scalability in Polar Code Bit Distribution
US-2018323905-A1 · Nov 8, 2018 · US
Non-orthogonal multiple access data transmission method and transmission device
US-2018309462-A1 · Oct 25, 2018 · US
Coding and decoding methods and apparatus
US-10090863-B2 · Oct 2, 2018 · US
Methods and apparatus for coding sub-channel selection
US-2018278389-A1 · Sep 27, 2018 · US
Magic state distillation with low space overhead and asymptotic input count
US-2018269906-A1 · Sep 20, 2018 · US
Method to Generate Ordered Sequence for Polar Codes
US-2018248655-A1 · Aug 30, 2018 · US
Apparatus and methods of specifying ordered sequences of coding sub-channels
US-2018248654-A1 · Aug 30, 2018 · US
Method and device for determining features of error correcting code system
US-2018241414-A1 · Aug 23, 2018 · US
Generalized polar code based on polarization of linear block codes and convolutional codes
US-2018198560-A1 · Jul 12, 2018 · US
Mutual-information based recursive polar code construction
US-2018198564-A1 · Jul 12, 2018 · US
Error-correction encoding and decoding
US-9996420-B2 · Jun 12, 2018 · US
Repair-Optimal Parity Code
US-2018034475-A1 · Feb 1, 2018 · US
Joint de-duplication-erasure coded distributed storage
US-2018018235-A1 · Jan 18, 2018 · US
System and method of belief propagation decoding
US-9806743-B2 · Oct 31, 2017 · US
Repair-optimal parity code
US-9793922-B2 · Oct 17, 2017 · US
Erasure correcting coding using data subsets and partial parity symbols
US-2017255519-A1 · Sep 7, 2017 · US
QC-LDPC Coding Methods And Apparatus
US-2017250712-A1 · Aug 31, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03M13/033?
- CPC H03M13/033 is the Cooperative Patent Classification code for “Theoretical methods to calculate these checking codes.”
- How many patents are filed under CPC H03M13/033 (Theoretical methods to calculate these checking codes)?
- Our database includes 208 publications tagged with this CPC code.
- Is patent activity under CPC H03M13/033 growing?
- Publication counts under this code: 13 in 2024 vs 15 in 2025 (latest complete years).