H03K 7/04
Position modulation, i.e. ppm
Official title: Position modulation, i.e. PPM
H03K7/04 (Position modulation, i.e. ppm) appears on 76 US grants and 50 published applications in this corpus.
Search patents in H03K- Granted patents
- 76
- Published applications
- 50
- Assignees
- 63
- Inventors
- 170
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 7 | 2 |
| 2002 | 1 | 1 |
| 2003 | 1 | 5 |
| 2004 | 1 | 3 |
| 2005 | 4 | 3 |
| 2006 | 6 | 4 |
| 2007 | 2 | 4 |
| 2008 | 2 | 5 |
| 2009 | 2 | 0 |
| 2010 | 7 | 7 |
| 2011 | 4 | 2 |
| 2012 | 3 | 0 |
| 2013 | 4 | 0 |
| 2014 | 2 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 3 |
| 2020 | 2 | 2 |
| 2021 | 1 | 2 |
| 2022 | 3 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Enhanced PPM frequency offset detector10 Feb 2026US 12,549,326 B2International Business Machines Corporation
- Method for determining an inverse impulse response of a communication channel25 Jul 2023US 11,711,092 B2Endress + Hauser Flowtec AG
- Wireless digital communication method and system for the communication between two electronic devices of an industrial apparatus18 Oct 2022US 11,477,061 B2Marposs Societa' Per Azioni
- Digital signal processing in mud pulse telemetry20 Sep 2022US 11,448,065 B2Halliburton Energy Services.Inc.
- PFM control circuit, PFM control system and PFM control method12 Jul 2022US 11,387,823 B2Realtek Semiconductor Corp.
- Enhanced ppm frequency offset detector6 Nov 2025US 2025/0343669 A1International Business Machines Corporation
- Device and Method for Radio Transmission of Local Measurements of Physical Values, Particularly by Way of Quasi-Gaussian PPM Pulses28 Aug 2025US 2025/0274200 A1Ste Industries S.R.L.
- Method for determining an inverse impulse response of a communication channel22 Dec 2022US 2022/0407536 A1Endress + Hauser Flowtec AG
- Wireless digital communication method and system for the communication between two electronic devices of an industrial apparatus2 Sep 2021US 2021/0273833 A1Marposs Societa' Per Azioni
- Pfm control circuit, pfm control system and pfm control method22 Jul 2021US 2021/0226538 A1Realtek Semiconductor Corp.
Most cited
By later US patents
- Adaptive data rate modem346US 5,541,955 APericle Communications Company · 1996
- Integrated circuit that includes a field-programmable gate array and a hard gate array having the same underlying structure172US 6,211,697 B1Actel Corporation · 2001
- Method and apparatus for positioning pulses in time97US 6,959,032 B1Time Domain Corporation · 2005
- Integrated circuit that includes a field-programmable gate array and a hard gate array having the same underlying structure95US 6,504,398 B1Actel Corporation · 2003
- Method and system for pulse interval modulation54US 5,026,156 AMartin Marietta Corporation · 1991