H04B 10/2507
For the reduction or elimination of distortion or dispersion
Official title: for the reduction or elimination of distortion or dispersion
H04B10/2507 (For the reduction or elimination of distortion or dispersion) appears on 3,191 US grants and 2,787 published applications in this corpus.
Search patents in H04B- Granted patents
- 3,191
- Published applications
- 2,787
- Assignees
- 736
- Inventors
- 4,530
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 7 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 7 | 0 |
| 1991 | 9 | 0 |
| 1992 | 12 | 0 |
| 1993 | 23 | 0 |
| 1994 | 33 | 0 |
| 1995 | 37 | 0 |
| 1996 | 52 | 0 |
| 1997 | 39 | 0 |
| 1998 | 51 | 0 |
| 1999 | 79 | 0 |
| 2000 | 74 | 0 |
| 2001 | 115 | 59 |
| 2002 | 143 | 214 |
| 2003 | 154 | 203 |
| 2004 | 168 | 225 |
| 2005 | 149 | 168 |
| 2006 | 159 | 132 |
| 2007 | 133 | 87 |
| 2008 | 116 | 87 |
| 2009 | 77 | 107 |
| 2010 | 83 | 84 |
| 2011 | 67 | 82 |
| 2012 | 75 | 76 |
| 2013 | 77 | 71 |
| 2014 | 97 | 78 |
| 2015 | 106 | 92 |
| 2016 | 90 | 89 |
| 2017 | 115 | 107 |
| 2018 | 100 | 108 |
| 2019 | 136 | 100 |
| 2020 | 102 | 94 |
| 2021 | 81 | 102 |
| 2022 | 115 | 99 |
| 2023 | 92 | 109 |
| 2024 | 78 | 77 |
| 2025 | 66 | 75 |
| 2026 | 50 | 62 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04B 10/2513Due to chromatic dispersion1,378
- H04B 10/2569Due to polarisation mode dispersion [pmd]378
- H04B 10/2543Due to fibre non-linearities371
- H04B 10/2572Due to forms of polarisation-dependent distortion other than pmd259
- H04B 10/2537Due to scattering processes207
- H04B 10/25073Using spectral equalisation193
- H04B 10/25077Using soliton propagation130
Recent patents
- Chromatic dispersion estimation method for coherent optical network6 Oct 2026US 12,756,467 B1Cable Television Laboratories, Inc.
- Method and system for monitoring non-linear effects along an optical communication line22 Sep 2026US 12,744,599 B2Huawei Technologies Co., Ltd.
- Calibration apparatus, calibration method, and non-transitory computer-readable storage medium15 Sep 2026US 12,739,032 B2NEC Corporation
- Optical signal controller, optical signal control method, and optical signal transmission system8 Sep 2026US 12,732,278 B2NTT, Inc.
- Technique to reduce signal crosstalk between cores in a multi-core optical fiber transmission8 Sep 2026US 12,732,300 B2NTT, Inc.
- Parallelized Optical Link Calibration Over an Optical Section8 Oct 2026US 2026/0312714 A1Ciena Corporation
- Optical connection module1 Oct 2026US 2026/0299218 A1Centera Photonics Inc.
- System and method for low noise distribution of terahertz waves using optical fiber and noise cancellation1 Oct 2026US 2026/0303213 A1Imra America, Inc.
- Telecom-Photon Insensitive Superconducting Qubit to Transducer Module1 Oct 2026US 2026/0303214 A1Booz Allen Hamilton Inc.
- Control method for multiband optical transmission system, communication device, and storage medium1 Oct 2026US 2026/0303216 A1Zte Corporation
Most cited
By later US patents
- Polarization mode dispersion compensation269US 6,271,952 B1Nortel Networks Limited · 2001
- Electrically optimized hybrid “last mile” telecommunications cable system253US 6,239,379 B1Khamsin Technologies, LLC · 2001
- Two-wavelength WDM Analog CATV transmission with low crosstalk232US 6,151,145 ALucent Technologies Inc. · 2000
- Apparatus and method for delivery of dispersion-compensated ultrashort optical pulses with high peak power220US 6,249,630 B1Imra America, Inc. · 2001
- Method and apparatus for improving spectral efficiency in wavelength division multiplexed transmission systems196US 6,134,033 ATyco Submarine Systems Ltd. · 2000