H03C 3/0925
Applying frequency modulation at the divider in the feedback loop
Official title: {applying frequency modulation at the divider in the feedback loop}
H03C3/0925 (Applying frequency modulation at the divider in the feedback loop) appears on 281 US grants and 192 published applications in this corpus.
Search patents in H03C- Granted patents
- 281
- Published applications
- 192
- Assignees
- 138
- Inventors
- 467
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 10 | 0 |
| 2000 | 6 | 0 |
| 2001 | 1 | 2 |
| 2002 | 3 | 2 |
| 2003 | 6 | 8 |
| 2004 | 13 | 17 |
| 2005 | 8 | 22 |
| 2006 | 17 | 14 |
| 2007 | 18 | 19 |
| 2008 | 17 | 19 |
| 2009 | 22 | 16 |
| 2010 | 17 | 10 |
| 2011 | 19 | 5 |
| 2012 | 7 | 4 |
| 2013 | 12 | 1 |
| 2014 | 4 | 3 |
| 2015 | 4 | 3 |
| 2016 | 8 | 8 |
| 2017 | 5 | 4 |
| 2018 | 3 | 7 |
| 2019 | 7 | 7 |
| 2020 | 10 | 4 |
| 2021 | 8 | 3 |
| 2022 | 4 | 5 |
| 2023 | 4 | 3 |
| 2024 | 2 | 5 |
| 2025 | 5 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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.
- 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
- Signal synthesis apparatus and method capable of correcting frequency offset of open loop13 May 2025US 12,301,241 B2Research & Business Foundation Sungkyunkwan University
- Partial-Fractional Phase-locked Loop with Sigma Delta Modulator and Finite Impulse Response Filter20 Nov 2025US 2025/0357935 A1Apple Inc.
- 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
- Phase-locked loop, radar system and method for randomizing initial phases of fmcw signals16 May 2024US 2024/0162908 A1Calterah Semiconductor Technology (Shanghai) Co., Ltd.
- Method of controlling a frequency-modulated oscillator of a phase-locked loop circuit7 Mar 2024US 2024/0080031 A1NXP B. V.
Most cited
By later US patents
- Digital compensation for wideband modulation of a phase locked loop frequency synthesizer313US 6,008,703 AMassachusetts Institute of Technology · 1999
- RF transmitter with extended efficient power control range171US 6,681,101 B1Skyworks Solutions, Inc. · 2004
- 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 at phase lock loop (PLL) feedback path117US 6,377,646 B1Cypress Semiconductor Corporation · 2002