Frequency division multiple access optical subcarriers
US-2020413169-A1 · Dec 31, 2020 · US
Optical Code Multiplex
Optical Code Multiplex · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04J14/005 |
| Official title | {Optical Code Multiplex} |
| Display label | Optical Code Multiplex |
| Total patents | 102 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 7 |
| 2017 | 8 |
| 2018 | 11 |
| 2019 | 14 |
| 2020 | 15 |
| 2021 | 7 |
| 2022 | 10 |
| 2023 | 11 |
| 2024 | 4 |
| 2025 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Frequency division multiple access optical subcarriers
US-2020403702-A1 · Dec 24, 2020 · US
Frequency division multiple access optical subcarriers
US-2020382216-A1 · Dec 3, 2020 · US
Transmission device, reception device, transmission method, and reception method
US-2020374027-A1 · Nov 26, 2020 · US
Data transmission method, terminal device, and network side device
US-10805032-B2 · Oct 13, 2020 · US
Transmission device, reception device, transmission method, and reception method
US-10778365-B2 · Sep 15, 2020 · US
Time division multiple access optical subcarriers
US-2020287621-A1 · Sep 10, 2020 · US
Code division multiple access optical subcarriers
US-2020287649-A1 · Sep 10, 2020 · US
Code division multiple access optical subcarriers
US-2020287648-A1 · Sep 10, 2020 · US
Optical transmitter, optical receiver, and optical transmission method
US-2020186255-A1 · Jun 11, 2020 · US
Optical transmission system, PON system, and transmission method
US-10666362-B2 · May 26, 2020 · US
Communications network
US-10637601-B2 · Apr 28, 2020 · US
Receiver and data receiving method
US-10630419-B2 · Apr 21, 2020 · US
Signal transmitting method, signal receiving method, and related device and system
US-2019342008-A1 · Nov 7, 2019 · US
Mode division multiplexing systems and methods using a rectangular-core optical fiber
US-10454607-B2 · Oct 22, 2019 · US
System and method for use in optical communication
US-2019319788-A1 · Oct 17, 2019 · US
Compact system for active co-boresight measurement in a laser communication system
US-10439716-B2 · Oct 8, 2019 · US
Data transmission method, terminal device, and network side device
US-2019296848-A1 · Sep 26, 2019 · US
Optical transmission system, pon system, and transmission method
US-2019288777-A1 · Sep 19, 2019 · US
Data transmission method and apparatus
US-10419111-B2 · Sep 17, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04J14/005?
- CPC H04J14/005 is the Cooperative Patent Classification code for “Optical Code Multiplex.”
- How many patents are filed under CPC H04J14/005 (Optical Code Multiplex)?
- Our database includes 102 publications tagged with this CPC code.
- Is patent activity under CPC H04J14/005 growing?
- Publication counts under this code: 4 in 2024 vs 8 in 2025 (latest complete years).