H04B 10/65
Intradyne, i.e. coherent receivers with a free running local oscillator having a
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}
H04B10/65 (Intradyne, i.e. coherent receivers with a free running local oscillator having a) appears on 189 US grants and 203 published applications in this corpus.
Search patents in H04B- Granted patents
- 189
- Published applications
- 203
- Assignees
- 65
- Inventors
- 330
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 5 |
| 2009 | 0 | 8 |
| 2010 | 5 | 29 |
| 2011 | 9 | 31 |
| 2012 | 24 | 29 |
| 2013 | 21 | 16 |
| 2014 | 27 | 7 |
| 2015 | 15 | 10 |
| 2016 | 15 | 4 |
| 2017 | 6 | 5 |
| 2018 | 4 | 6 |
| 2019 | 8 | 10 |
| 2020 | 4 | 11 |
| 2021 | 13 | 5 |
| 2022 | 5 | 4 |
| 2023 | 8 | 8 |
| 2024 | 5 | 7 |
| 2025 | 3 | 5 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Coherent optical receiving method and receiver16 Apr 2026US 2026/0106673 A1UIF (University Industry Foundation), Yonsei University
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- Systems and methods for common mode rejection (cmr) filtering in a substrate20 Nov 2025US 2025/0358022 A1Ciena Corporation
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Most cited
By later US patents
- Optical transmission apparatuses, methods, and systems122US 7,826,752 B1Level 3 Communications, LLC · 2010
- Low conversion rate digital dispersion compensation90US 7,701,842 B2Nortel Networks Limited · 2010
- Polarization-dependent and polarization-diversified opto-electronic devices using a strained quantum well80US 5,117,469 ABell Communications Research, Inc. · 1992
- Cross polarization interface canceler62US 6,782,211 B12004
- Optical field receiver and optical transmission system59US 8,184,992 B2Hitachi, Ltd. · 2012