H04B 10/54
Intensity modulation
H04B10/54 (Intensity modulation) appears on 1,044 US grants and 1,070 published applications in this corpus.
Search patents in H04B- Granted patents
- 1,044
- Published applications
- 1,070
- Assignees
- 349
- Inventors
- 1,688
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 9 |
| 2003 | 3 | 20 |
| 2004 | 8 | 11 |
| 2005 | 4 | 14 |
| 2006 | 9 | 9 |
| 2007 | 7 | 13 |
| 2008 | 14 | 20 |
| 2009 | 11 | 13 |
| 2010 | 9 | 20 |
| 2011 | 21 | 19 |
| 2012 | 14 | 15 |
| 2013 | 15 | 21 |
| 2014 | 25 | 50 |
| 2015 | 43 | 54 |
| 2016 | 62 | 58 |
| 2017 | 86 | 115 |
| 2018 | 106 | 88 |
| 2019 | 117 | 93 |
| 2020 | 97 | 95 |
| 2021 | 91 | 72 |
| 2022 | 66 | 86 |
| 2023 | 62 | 54 |
| 2024 | 54 | 50 |
| 2025 | 45 | 36 |
| 2026 | 27 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and apparatus to increase optic line capacity15 Sep 2026US 12,739,034 B2Nokia Solutions and Networks Oy
- Light modulation device of an elevator installation and light modulation transmission method11 Aug 2026US 12,703,603 B2Inventio AG
- Reconfigurable optical transceiver for use with multiple modulation techniques11 Aug 2026US 12,706,677 B2Marvell Asia Pte Ltd
- System and method for solar cell photo-luminescence modulation14 Jul 2026US 12,683,690 B2Purdue Research Foundation
- Optical transmitter, a quantum communication system and a method of operating an optical transmitter14 Jul 2026US 12,683,693 B2Kabushiki Kaisha Toshiba
- Optical transmission system and operating method thereof8 Oct 2026US 2026/0312690 A1Agency for Defense Development
- Dual-polarization bidirectional optical devices1 Oct 2026US 2026/0303218 A1
- Optical multi-wavelength dual-polarization transceivers1 Oct 2026US 2026/0303248 A1Aloe Semiconductor Inc.
- Method and System For External Modulation For Multi-Source NRZ to Pam-n24 Sep 2026US 2026/0291615 A1II-Vi Delaware, Inc.
- Optical distribution network with coexisting passive optical network and coherent passive optical network10 Sep 2026US 2026/0269943 A1Cable Television Laboratories, Inc.
Most cited
By later US patents
- System and method for communication using orbital angular momentum with multiple layer overlay modulation160US 9,077,577 B12015
- Optical transmission system132US 5,543,952 ANippon Telegraph and Telephone Corporation · 1996
- Optical transmission apparatuses, methods, and systems122US 7,826,752 B1Level 3 Communications, LLC · 2010
- Orthogonal differential vector signaling108US 9,288,089 B2Ecole Polytechnique Federale De Lausanne (Epfl) · 2016
- Optical I-Q-modulator105US 8,295,710 B2Nokia Siemens Networks Oy · 2012