Clock recovery for band-limited optical channels
US-10505641-B2 · Dec 10, 2019 · US
Homodyne {, i.e. coherent receivers where the local oscillator is locked in frequency and phase to the carrier signal}
Homodyne {, i.e. coherent receivers where the local oscillator is locked in frequency and phase 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 | H04B10/63 |
| Official title | Homodyne {, i.e. coherent receivers where the local oscillator is locked in frequency and phase to the carrier signal} |
| Display label | Homodyne {, i.e. coherent receivers where the local oscillator is locked in frequency and phase to the carrier signal} |
| Total patents | 219 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 16 |
| 2017 | 14 |
| 2018 | 15 |
| 2019 | 17 |
| 2020 | 24 |
| 2021 | 34 |
| 2022 | 28 |
| 2023 | 25 |
| 2024 | 19 |
| 2025 | 15 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Clock recovery for band-limited optical channels
US-2019334627-A1 · Oct 31, 2019 · US
Fiber communication systems and methods
US-2019326995-A1 · Oct 24, 2019 · US
Systems and methods for coherent optics in an access network
US-2019305854-A1 · Oct 3, 2019 · US
Phase reference sharing schemes for continuous-variable quantum cryptography
US-2019199523-A1 · Jun 27, 2019 · US
Method and system for decoding a modulated signal
US-10103816-B2 · Oct 16, 2018 · US
Polarization insensitive self-homodyne detection receiver
US-10090933-B2 · Oct 2, 2018 · US
Optical transceiver using duplex media, self-homodyne detection (SHD), coherent detection, and uncooled laser
US-10050713-B2 · Aug 14, 2018 · US
Reception of multiple-wavelength optical signals consisting of single-band optical bursts
US-2018227058-A1 · Aug 9, 2018 · US
Ultra-low noise photonic phase noise measurement system for microwave signals
US-2018180655-A1 · Jun 28, 2018 · US
Downhole fiber optic quadrature modulation
US-9979488-B2 · May 22, 2018 · US
Polarization insensitive self-homodyne detection receiver for spatial-division multiplexing systems
US-2018131447-A1 · May 10, 2018 · US
Fiber communication systems and methods
US-2018131444-A1 · May 10, 2018 · US
Polarization insensitive self-homodyne detection receiver
US-2018123702-A1 · May 3, 2018 · US
Signal processing apparatus and method for transmitting and receiving coherent parallel optical signals
US-2018083599-A1 · Mar 22, 2018 · US
Receiving device and phase-error compensation method
US-2018076903-A1 · Mar 15, 2018 · US
Self-coherent robust spectrally efficient optical transmission systems
US-2018069638-A1 · Mar 8, 2018 · US
Fiber communication systems and methods
US-9912409-B2 · Mar 6, 2018 · US
Downhole fiber optic quadrature modulation
US-2018041284-A1 · Feb 8, 2018 · US
Downhole telemetry using adaptive feedback
US-2018016893-A1 · Jan 18, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04B10/63?
- CPC H04B10/63 is the Cooperative Patent Classification code for “Homodyne {, i.e. coherent receivers where the local oscillator is locked in frequency and phase to the carrier signal}.”
- How many patents are filed under CPC H04B10/63 (Homodyne {, i.e. coherent receivers where the local oscillator is locked in frequency and phase to the carrier signal})?
- Our database includes 219 publications tagged with this CPC code.
- Is patent activity under CPC H04B10/63 growing?
- Publication counts under this code: 19 in 2024 vs 15 in 2025 (latest complete years).