H03C 3/0941
Applying frequency modulation at more than one point in the loop
Official title: {applying frequency modulation at more than one point in the loop}
H03C3/0941 (Applying frequency modulation at more than one point in the loop) appears on 263 US grants and 167 published applications in this corpus.
Search patents in H03C- Granted patents
- 263
- Published applications
- 167
- Assignees
- 120
- Inventors
- 427
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 9 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 2 | 3 |
| 2003 | 2 | 3 |
| 2004 | 10 | 13 |
| 2005 | 7 | 15 |
| 2006 | 10 | 11 |
| 2007 | 10 | 14 |
| 2008 | 13 | 13 |
| 2009 | 12 | 11 |
| 2010 | 12 | 11 |
| 2011 | 14 | 3 |
| 2012 | 5 | 6 |
| 2013 | 10 | 3 |
| 2014 | 6 | 2 |
| 2015 | 2 | 2 |
| 2016 | 8 | 8 |
| 2017 | 5 | 7 |
| 2018 | 6 | 5 |
| 2019 | 8 | 5 |
| 2020 | 9 | 7 |
| 2021 | 7 | 7 |
| 2022 | 7 | 5 |
| 2023 | 5 | 3 |
| 2024 | 2 | 6 |
| 2025 | 5 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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.
- Partial-fractional phase-locked loop with sigma delta modulator and finite impulse response filter19 Aug 2025US 12,395,178 B2
- Device and method for signal synthesis compensating the frequency offset of open loop15 Jul 2025US 12,362,707 B2Research & Business Foundation Sungkyunkwan University
- 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.
- 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
- Signal synthesis apparatus and method capable of correcting frequency offset of open loop31 Oct 2024US 2024/0364352 A1Research & Business Foundation Sungkyunkwan University
Most cited
By later US patents
- Direct digital synthesis of precise, stable angle modulated RF signal161US 5,952,895 ATropian, Inc. · 1999
- Spread spectrum clock generator and associated method160US 5,488,627 ALexmark International, Inc. · 1996
- Frequency synthesizer systems and methods for three-point modulation with a DC response147US 5,834,987 AErcisson Inc. · 1998
- Spread spectrum clock generator106US 5,631,920 ALexmark International, Inc. · 1997
- Delta-sigma based dual-port modulation scheme and calibration techniques for similar modulation schemes90US 6,515,553 B1Conexant Systems, Inc. · 2003