H04B 10/6162
Compensation of polarization related effects
Official title: {Compensation of polarization related effects, e.g., PMD, PDL}
H04B10/6162 (Compensation of polarization related effects) appears on 250 US grants and 243 published applications in this corpus.
Search patents in H04B- Granted patents
- 250
- Published applications
- 243
- Assignees
- 67
- Inventors
- 406
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2004 | 0 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 4 |
| 2008 | 4 | 1 |
| 2009 | 5 | 8 |
| 2010 | 7 | 14 |
| 2011 | 7 | 10 |
| 2012 | 9 | 9 |
| 2013 | 10 | 8 |
| 2014 | 17 | 13 |
| 2015 | 14 | 19 |
| 2016 | 18 | 13 |
| 2017 | 18 | 14 |
| 2018 | 18 | 18 |
| 2019 | 18 | 22 |
| 2020 | 27 | 25 |
| 2021 | 22 | 14 |
| 2022 | 16 | 12 |
| 2023 | 14 | 12 |
| 2024 | 14 | 8 |
| 2025 | 3 | 6 |
| 2026 | 7 | 9 |
By publication year. 2026 runs to 8 Oct.
Recent patents
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- Decoding method using polarization time block coding and decoding device for performing the method5 May 2026US 12,621,059 B2Electronics and Telecommunications Research Institute
- Electronic devices with high frequency polarization optimization31 Mar 2026US 12,592,781 B2
- Multi-carrier signal waveform equalization circuit and multi-carrier signal waveform equalization method10 Sep 2026US 2026/0269951 A1NTT, Inc.
- Apparatus and method for polarization sensing27 Aug 2026US 2026/0254535 A1Nokia Solutions and Networks Oy
- Apparatus and method for equalizer training in a coherent receiver27 Aug 2026US 2026/0254680 A1Nokia Solutions and Networks Oy
- Optical receiving apparatus and signal processing method23 Jul 2026US 2026/0213852 A1NTT, Inc.
- Adaptive equalization circuit, adaptive equalization method, and reception device2 Jul 2026US 2026/0189318 A1Ntt Innovative Devices Corporation
Most cited
By later US patents
- Low conversion rate digital dispersion compensation90US 7,701,842 B2Nortel Networks Limited · 2010
- Signal acquisition in a coherent optical receiver71US 7,636,525 B1Nortel Networks Limited · 2009
- Carrier recovery in a coherent optical receiver68US 7,606,498 B1Nortel Networks Limited · 2009
- Sample timing control in an optical receiver63US 7,894,728 B1Ciena Corporation · 2011
- System and method for coherent detection of optical signals55US 8,437,645 B2Google Inc. · 2013