Clock recovery for optical transmission systems
US-10122470-B2 · Nov 6, 2018 · US
Intradyne, i.e. coherent receivers with a free running local oscillator having a frequency close but not phase-locked to the carrier signal
Intradyne, i.e. coherent receivers with a free running local oscillator having a frequency close but not phase-locked to the carrier signal · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04B10/65 |
| Official title | {Intradyne, i.e. coherent receivers with a free running local oscillator having a frequency close but not phase-locked to the carrier signal} |
| Display label | Intradyne, i.e. coherent receivers with a free running local oscillator having a frequency close but not phase-locked to the carrier signal |
| Total patents | 157 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 24 |
| 2016 | 18 |
| 2017 | 9 |
| 2018 | 9 |
| 2019 | 17 |
| 2020 | 15 |
| 2021 | 19 |
| 2022 | 9 |
| 2023 | 16 |
| 2024 | 11 |
| 2025 | 8 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and system for decoding a modulated signal
US-10103816-B2 · Oct 16, 2018 · US
Optical transport system employing direct-detection self-coherent receivers and compatible transmitters
US-2018294913-A1 · Oct 11, 2018 · US
Decoding a combined amplitude modulated and frequency modulated signal
US-2018278338-A1 · Sep 27, 2018 · US
Decoding a combined amplitude modulated and frequency modulated signal
US-10014952-B2 · Jul 3, 2018 · US
System and methods for cable fiber node splitting using coherent optics
US-2018175941-A1 · Jun 21, 2018 · US
Optical receiver, optical termination device, and optical communication system
US-10003410-B2 · Jun 19, 2018 · US
Pluggable optical module and optical communication system
US-2018156974-A1 · Jun 7, 2018 · US
Communication control device and communication control system
US-2018076902-A1 · Mar 15, 2018 · US
I/Q imbalance correction for an optical-transport system
US-9847841-B1 · Dec 19, 2017 · US
Optical receiver, optical termination device, and optical communication system
US-2017294970-A1 · Oct 12, 2017 · US
Pilot-aided feedforward data recovery in optical coherent communications
US-9768885-B2 · Sep 19, 2017 · US
Polarisation-independent coherent optical receiver
US-9755759-B2 · Sep 5, 2017 · US
Optical spatial-division multiplexed transmission system and transmission method
US-9729229-B2 · Aug 8, 2017 · US
Soft decoding of data in a coherent optical receiver
US-9602207-B2 · Mar 21, 2017 · US
Pilot-aided feedforward data recovery in optical coherent communications
US-2017078029-A1 · Mar 16, 2017 · US
Reception of 2-subcarriers coherent orthogonal frequency division multiplexed signals
US-9590833-B2 · Mar 7, 2017 · US
Clock recovery for optical transmission systems
US-2017005733-A1 · Jan 5, 2017 · US
Receiver, transmission system, method for receiving polarization multiplexed optical signal, and non-transitory computer readable medium storing receiver control program
US-9515743-B2 · Dec 6, 2016 · US
Decoding a combined amplitude modulated and frequency modulated signal
US-2016352432-A1 · Dec 1, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04B10/65?
- CPC H04B10/65 is the Cooperative Patent Classification code for “Intradyne, i.e. coherent receivers with a free running local oscillator having a frequency close but not phase-locked to the carrier signal.”
- How many patents are filed under CPC H04B10/65 (Intradyne, i.e. coherent receivers with a free running local oscillator having a frequency close but not phase-locked to the carrier signal)?
- Our database includes 157 publications tagged with this CPC code.
- Is patent activity under CPC H04B10/65 growing?
- Publication counts under this code: 11 in 2024 vs 8 in 2025 (latest complete years).