H04B 10/676
For all-optical demodulation of the input optical signal
Official title: {for all-optical demodulation of the input optical signal}
H04B10/676 (For all-optical demodulation of the input optical signal) appears on 299 US grants and 335 published applications in this corpus.
Search patents in H04B- Granted patents
- 299
- Published applications
- 335
- Assignees
- 169
- Inventors
- 594
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 3 |
| 2004 | 3 | 4 |
| 2005 | 1 | 6 |
| 2006 | 4 | 12 |
| 2007 | 6 | 13 |
| 2008 | 10 | 28 |
| 2009 | 11 | 47 |
| 2010 | 21 | 36 |
| 2011 | 31 | 36 |
| 2012 | 31 | 21 |
| 2013 | 26 | 16 |
| 2014 | 23 | 9 |
| 2015 | 10 | 6 |
| 2016 | 9 | 6 |
| 2017 | 7 | 10 |
| 2018 | 9 | 18 |
| 2019 | 15 | 12 |
| 2020 | 16 | 11 |
| 2021 | 16 | 12 |
| 2022 | 8 | 11 |
| 2023 | 11 | 7 |
| 2024 | 8 | 2 |
| 2025 | 4 | 5 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Network node2 Jun 2026US 12,647,184 B2British Telecommunications Public Ltd.Co.
- Wavelength reference having repeating spectral features and unique spectral features24 Feb 2026US 12,560,754 B2II-Vi Delaware, Inc.
- System for pulsed laser optical data transmission with receiver recoverable clock9 Sep 2025US 12,413,329 B2NEWPHOTONICS Ltd.
- Lidar based communication22 Apr 2025US 12,283,988 B2Waymo LLC
- Method and system for optical timing transfer8 Apr 2025US 12,273,145 B2Inter-University Research Institute Corporation National Institutes of Natural Sciences
- Differential phase shift keying demodulator8 Oct 2026US 2026/0312694 A1BAE Systems Information and Electronic Systems Integration Inc.
- Wavelength reference having repeating spectral features and unique spectral features4 Jun 2026US 2026/0153669 A1II-Vi Delaware, Inc.
- A network node8 Jan 2026US 2026/0012259 A1British Telecommunications Public Ltd.Co.
- Signal processing system10 Jul 2025US 2025/0226892 A1Tamagawa University and Tamagawa Academy
- Lidar based communication3 Jul 2025US 2025/0219730 A1Waymo LLC
Most cited
By later US patents
- Optical transmission system178US 4,533,247 AInternational Standard Electric Corporation · 1985
- Optical transmission apparatuses, methods, and systems122US 7,826,752 B1Level 3 Communications, LLC · 2010
- Method and apparatus for optical frequency demodulation of an optical signal using interferometry62US 6,271,959 B1Nortel Networks Limited · 2001
- Systems and methods for converting wideband signals in the optical domain44US 8,026,837 B1The Aerospace Corporation · 2011
- Fiber optic energy sensor and optical demodulation system and methods of making same41US 4,360,272 AOptelecom, Inc. · 1982