Codes to detect insertion and deletion errors in a dense storage medium
US-2025390762-A1 · Dec 25, 2025 · US
using convolutional codes (H03M13/2957 takes precedence)
using convolutional codes (H03M13/2957 takes precedence) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03M13/2939 |
| Official title | {using convolutional codes (H03M13/2957 takes precedence)} |
| Display label | using convolutional codes (H03M13/2957 takes precedence) |
| Total patents | 34 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 8 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods, system, and apparatus for rate compatible woven codes
US-2025330273-A1 · Oct 23, 2025 · US
List decoding of polarization-adjusted convolutional codes
US-12401379-B2 · Aug 26, 2025 · US
Codes to detect insertion and deletion errors in a dense storage medium
US-12380338-B2 · Aug 5, 2025 · US
List decoding of polarization-adjusted convolutional codes
US-2024305313-A1 · Sep 12, 2024 · US
List decoding of polarization-adjusted convolutional codes
US-11990921-B2 · May 21, 2024 · US
Methods and apparatus for error-correcting difference-triangle-set product convolutional codes
US-11799499-B2 · Oct 24, 2023 · US
List decoding of polarization-adjusted convolutional codes
US-2023179229-A1 · Jun 8, 2023 · US
Codes to detect insertion and deletion errors in a dense storage medium
US-2022284304-A1 · Sep 8, 2022 · US
Convolutional precoding and decoding of polar codes
US-11398842-B2 · Jul 26, 2022 · US
Methods and apparatus for error-correcting difference-triangle-set product convolutional codes
US-2021399832-A1 · Dec 23, 2021 · US
Convolutional precoding and decoding of polar codes
US-2021273659-A1 · Sep 2, 2021 · US
Method of Viterbi algorithm and receiving device
US-11108415-B2 · Aug 31, 2021 · US
Staircase code decoding method and staircase code decoding apparatus
US-11070313-B2 · Jul 20, 2021 · US
Convolutional precoding and decoding of polar codes
US-11012100-B2 · May 18, 2021 · US
Convolutional precoding and decoding of polar codes
US-2020382138-A1 · Dec 3, 2020 · US
Method of viterbi algorithm and receiving device
US-2020274557-A1 · Aug 27, 2020 · US
Convolutional code decoder and convolutional code decoding method
US-10720944-B2 · Jul 21, 2020 · US
Staircase code decoding method and staircase code decoding apparatus
US-2020220653-A1 · Jul 9, 2020 · US
Enhanced decoding of coded sequences with structured data
US-10686557-B2 · Jun 16, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03M13/2939?
- CPC H03M13/2939 is the Cooperative Patent Classification code for “using convolutional codes (H03M13/2957 takes precedence).”
- How many patents are filed under CPC H03M13/2939 (using convolutional codes (H03M13/2957 takes precedence))?
- Our database includes 34 publications tagged with this CPC code.
- Is patent activity under CPC H03M13/2939 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).