H03C 3/0908
Using a phase locked loop
Official title: {using a phase locked loop}
H03C3/0908 (Using a phase locked loop) appears on 717 US grants and 451 published applications in this corpus.
Search patents in H03C- Granted patents
- 717
- Published applications
- 451
- Assignees
- 285
- Inventors
- 1,091
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 8 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 10 | 0 |
| 1985 | 14 | 0 |
| 1986 | 6 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 10 | 0 |
| 1991 | 13 | 0 |
| 1992 | 9 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 12 | 0 |
| 1996 | 21 | 0 |
| 1997 | 3 | 0 |
| 1998 | 11 | 0 |
| 1999 | 19 | 0 |
| 2000 | 20 | 0 |
| 2001 | 14 | 3 |
| 2002 | 13 | 14 |
| 2003 | 12 | 20 |
| 2004 | 30 | 51 |
| 2005 | 19 | 39 |
| 2006 | 32 | 33 |
| 2007 | 32 | 33 |
| 2008 | 29 | 27 |
| 2009 | 37 | 24 |
| 2010 | 36 | 26 |
| 2011 | 42 | 19 |
| 2012 | 22 | 14 |
| 2013 | 20 | 10 |
| 2014 | 17 | 6 |
| 2015 | 11 | 10 |
| 2016 | 13 | 14 |
| 2017 | 12 | 11 |
| 2018 | 13 | 15 |
| 2019 | 16 | 16 |
| 2020 | 28 | 22 |
| 2021 | 21 | 14 |
| 2022 | 13 | 14 |
| 2023 | 9 | 5 |
| 2024 | 6 | 7 |
| 2025 | 8 | 3 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03C 3/0916With frequency divider or counter in the loop343
- H03C 3/0941Applying frequency modulation at more than one point in the loop263
- H03C 3/095Applying frequency modulation to the loop in front of the voltage controlled234
- H03C 3/0966Modulating the reference clock202
- H03C 3/0958Applying frequency modulation by varying the characteristics of the voltage controlled oscillator140
- H03C 3/0991Including calibration means or calibration methods121
- H03C 3/0975Applying frequency modulation in the phase locked loop at components other than101
- H03C 3/0983Containing in the loop a mixer other than for phase detection66
Recent patents
- Phase-locked loop, radar system and method for randomizing initial phases of FMCW signals12 May 2026US 12,625,245 B2Calterah Semiconductor Technology (Shanghai) Co., Ltd.
- Phase-locked loops (PLL) including digitally controlled oscillator (DCO) gain calibration circuits and related methods21 Apr 2026US 12,609,707 B2Microsoft Technology Licensing, LLC
- PLL circuit and method for generating a modulated carrier signal20 Jan 2026US 12,531,514 B2Sony Semiconductor Solutions Corporation
- Injection current modulation for chirp signal timing control13 Jan 2026US 12,523,745 B2NXP B. V.
- Device and method for transmitting data16 Dec 2025US 12,500,799 B2Sew-Eurodrive GmbH & Co. KG
- Non-uniform coarse dco steps for improved chirp linearity23 Jul 2026US 2026/0213756 A1NXP B. V.
- Partial-Fractional Phase-locked Loop with Sigma Delta Modulator and Finite Impulse Response Filter20 Nov 2025US 2025/0357935 A1Apple Inc.
- Clock circuit and method of operating same6 Nov 2025US 2025/0341855 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Pll circuit and method for generating a modulated carrier signal3 Apr 2025US 2025/0112595 A1Sony Semiconductor Solutions Corporation
- Device and method for signal synthesis compensating the frequency offset of open loop31 Oct 2024US 2024/0364263 A1Research & Business Foundation Sungkyunkwan University
Most cited
By later US patents
- Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones346US 6,389,010 B1Intermec IP Corp. · 2002
- Digital compensation for wideband modulation of a phase locked loop frequency synthesizer313US 6,008,703 AMassachusetts Institute of Technology · 1999
- Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones206US 6,850,510 B2Broadcom Corporation · 2005
- Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones203US 6,961,312 B2Broadcom Corporation · 2005
- Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones190US 7,580,384 B2Broadcom Corporation · 2009