H03K 7/06
Frequency or rate modulation, i.e. pfm or prm
Official title: Frequency or rate modulation, i.e. PFM or PRM
H03K7/06 (Frequency or rate modulation, i.e. pfm or prm) appears on 277 US grants and 150 published applications in this corpus.
Search patents in H03K- Granted patents
- 277
- Published applications
- 150
- Assignees
- 202
- Inventors
- 491
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 6 | 0 |
| 1978 | 11 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 10 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 1 |
| 2002 | 4 | 1 |
| 2003 | 2 | 2 |
| 2004 | 3 | 1 |
| 2005 | 0 | 4 |
| 2006 | 2 | 9 |
| 2007 | 9 | 9 |
| 2008 | 7 | 11 |
| 2009 | 4 | 7 |
| 2010 | 10 | 6 |
| 2011 | 5 | 5 |
| 2012 | 9 | 5 |
| 2013 | 4 | 5 |
| 2014 | 7 | 4 |
| 2015 | 5 | 3 |
| 2016 | 7 | 16 |
| 2017 | 19 | 9 |
| 2018 | 10 | 8 |
| 2019 | 12 | 7 |
| 2020 | 12 | 10 |
| 2021 | 5 | 9 |
| 2022 | 10 | 3 |
| 2023 | 3 | 1 |
| 2024 | 1 | 4 |
| 2025 | 4 | 8 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Techniques for operating a switched-mode power supply25 Aug 2026US 12,719,364 B2QUALCOMM Incorporated
- Switching converter controller with adaptive pulse-frequency modulation timer circuit16 Jun 2026US 12,658,903 B2Texas Instruments Incorporated
- Pulse width modulation signal driver10 Mar 2026US 12,574,024 B2Infineon Technologies Canada Inc.
- Acoustic noise suppression in PFM based buck regulator3 Mar 2026US 12,567,807 B2Infineon Technologies Americas Corp.
- Motor driver using spread spectrum mechanism for reducing electromagnetic interference14 Oct 2025US 12,445,017 B2Anpec Electronics Corporation
- Polar digital frequency modulator27 Aug 2026US 2026/0254444 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Switching control circuit and power source system4 Jun 2026US 2026/0155817 A1Fuji Electric Co., Ltd.
- Frequency correction circuit for switching converters, corresponding converter device and method9 Oct 2025US 2025/0317043 A1STMicroelectronics International N. V.
- Switching converter controller with adaptive pulse-frequency modulation timer circuit28 Aug 2025US 2025/0274113 A1Texas Instruments Incorporated
- Method and apparatus for stable battery-powered supply modules17 Jul 2025US 2025/0233500 A1Avago Technologies International Sales Pte. Limited
Most cited
By later US patents
- Low power current to frequency converter circuit for use in implantable sensors722US 5,917,346 AAlfred E. Mann Foundation · 1999
- Signal transmission device, electronic device, and signal transmission method95US 9,178,504 B2Sony Corporation · 2015
- Signal delay device72US 5,039,893 AYamaha Corporation · 1991
- Signal processing circuit including a variable gain input stage54US 5,541,600 ACsem Centre Suisse D'Electronique Et De Microtechnique SA—Recherche Et DéVeloppement · 1996
- Signal delay device using CMOS supply voltage control42US 5,012,141 AYamaha Corporation · 1991