Optical amplifier and gain adjustment method for optical amplifier
US-2022131330-A1 · Apr 28, 2022 · US
Signal power control
Signal power control · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04B10/293 |
| Official title | Signal power control |
| Display label | Signal power control |
| Total patents | 131 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 11 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 9 |
| 2020 | 8 |
| 2021 | 17 |
| 2022 | 16 |
| 2023 | 25 |
| 2024 | 15 |
| 2025 | 10 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Backscattering optical amplification device, optical pulse testing device, backscattering optical amplification method and optical pulse testing method
US-2021356357-A1 · Nov 18, 2021 · US
Excitation light source apparatus and optical transmission system
US-11165501-B2 · Nov 2, 2021 · US
Light amplifying relay system
US-2021296847-A1 · Sep 23, 2021 · US
Free space optical communication system and method
US-2021281322-A1 · Sep 9, 2021 · US
Optical transceiver and method of controlling optical powers of optical channels
US-11108488-B2 · Aug 31, 2021 · US
Method and apparatus for interdependent control of amplification and switching state in a photonic switch
US-11095509-B2 · Aug 17, 2021 · US
Method of controlling semiconductor optical amplifier and optical amplifying apparatus
US-11092824-B2 · Aug 17, 2021 · US
Light source device and optical amplifier
US-2021249834-A1 · Aug 12, 2021 · US
Uplink transmit power control information determination for performing uplink sending
US-11082975-B2 · Aug 3, 2021 · US
Optical transmission device and optical transmission method
US-11057110-B2 · Jul 6, 2021 · US
Optical amplification module and optical amplification method
US-2021203120-A1 · Jul 1, 2021 · US
Blind pump laser detection
US-2021184420-A1 · Jun 17, 2021 · US
Free space optical communication system and method
US-11038593-B2 · Jun 15, 2021 · US
Optical node device
US-10965375-B2 · Mar 30, 2021 · US
Method of performing dynamic power optimization in fiber-optic communication system and related fiber-optic communication system
US-10951319-B1 · Mar 16, 2021 · US
Method and apparatus for interdependent control of amplification and switching state in a photonic switch
US-2021075674-A1 · Mar 11, 2021 · US
Optical node device
US-2021036781-A1 · Feb 4, 2021 · US
Optical amplifier
US-10855044-B2 · Dec 1, 2020 · US
Optical transmission device and optical transmission method
US-2020266912-A1 · Aug 20, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04B10/293?
- CPC H04B10/293 is the Cooperative Patent Classification code for “Signal power control.”
- How many patents are filed under CPC H04B10/293 (Signal power control)?
- Our database includes 131 publications tagged with this CPC code.
- Is patent activity under CPC H04B10/293 growing?
- Publication counts under this code: 15 in 2024 vs 10 in 2025 (latest complete years).