H04L 25/4902
Pulse width modulation
Official title: {Pulse width modulation; Pulse position modulation}
H04L25/4902 (Pulse width modulation) appears on 1,126 US grants and 1,064 published applications in this corpus.
Search patents in H04L- Granted patents
- 1,126
- Published applications
- 1,064
- Assignees
- 541
- Inventors
- 2,000
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 5 | 0 |
| 1997 | 14 | 0 |
| 1998 | 6 | 0 |
| 1999 | 13 | 0 |
| 2000 | 16 | 0 |
| 2001 | 14 | 3 |
| 2002 | 15 | 24 |
| 2003 | 11 | 38 |
| 2004 | 21 | 57 |
| 2005 | 35 | 64 |
| 2006 | 40 | 63 |
| 2007 | 35 | 36 |
| 2008 | 45 | 57 |
| 2009 | 37 | 57 |
| 2010 | 50 | 47 |
| 2011 | 44 | 32 |
| 2012 | 49 | 33 |
| 2013 | 50 | 39 |
| 2014 | 54 | 49 |
| 2015 | 67 | 54 |
| 2016 | 62 | 57 |
| 2017 | 59 | 33 |
| 2018 | 32 | 29 |
| 2019 | 46 | 55 |
| 2020 | 53 | 29 |
| 2021 | 34 | 27 |
| 2022 | 34 | 31 |
| 2023 | 22 | 30 |
| 2024 | 27 | 62 |
| 2025 | 55 | 36 |
| 2026 | 21 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Digital pulse-position noise shift keying to communicate information8 Sep 2026US 12,732,401 B2The Boeing Company
- Communication device14 Jul 2026US 12,683,838 B2Rohm Co., Ltd.
- Differential signal skew compensation technique for RFI mitigation with no reflection penalty16 Jun 2026US 12,659,199 B2Intel Corporation
- Electronic generator of carrier modulated pulse signals and associated radiofrequency signals transmitter16 Jun 2026US 12,659,201 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Ultra wideband radio devices and methods9 Jun 2026US 12,652,074 B2SPARK Microsystems International Inc.
- Low-power wake-up signal design24 Sep 2026US 2026/0291786 A1Nokia Technologies Oy
- Distributed power management circuit27 Aug 2026US 2026/0254411 A1Qorvo US, Inc.
- Data communication system, encoder logic, decoder logic, and encoding and decoding method using the same27 Aug 2026US 2026/0254682 A1Leading Ui Co., Ltd.
- Non-transitory storage medium storing a communication program and method of assigning pulse code train6 Aug 2026US 2026/0230104 A1National Institute of Information and Communicatins Technology
- Method and apparatus to provide frequency translation of audio signal via switching and/or dc restoration9 Jul 2026US 2026/0197211 A1
Most cited
By later US patents
- Universal lighting network methods and systems1,007US 6,548,967 B1Color Kinetics Incorporated · 2003
- Serial communication protocol for medical device579US 9,226,766 B2Ethicon Endo-Surgery, Inc. · 2016
- Method and system for communicating information in a digital signal540US 8,599,957 B2EMS Technologies, Inc. · 2013
- Method and system for communicating information in a digital signal503US 8,750,445 B2EMS Technologies, Inc. · 2014
- Universal lighting network methods and systems437US 7,309,965 B2Color Kinetics Incorporated · 2007