H03J 7/04
Where the frequency control is accomplished by varying the electrical characteristics of
Official title: where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
H03J7/04 (Where the frequency control is accomplished by varying the electrical characteristics of) appears on 717 US grants and 279 published applications in this corpus.
Search patents in H03J- Granted patents
- 717
- Published applications
- 279
- Assignees
- 272
- Inventors
- 1,068
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 15 | 0 |
| 1978 | 19 | 0 |
| 1979 | 15 | 0 |
| 1980 | 17 | 0 |
| 1981 | 17 | 0 |
| 1982 | 13 | 0 |
| 1983 | 6 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 9 | 0 |
| 1987 | 8 | 0 |
| 1988 | 6 | 0 |
| 1989 | 14 | 0 |
| 1990 | 13 | 0 |
| 1991 | 13 | 0 |
| 1992 | 13 | 0 |
| 1993 | 9 | 0 |
| 1994 | 10 | 0 |
| 1995 | 10 | 0 |
| 1996 | 21 | 0 |
| 1997 | 14 | 0 |
| 1998 | 34 | 0 |
| 1999 | 25 | 0 |
| 2000 | 38 | 0 |
| 2001 | 35 | 9 |
| 2002 | 19 | 22 |
| 2003 | 23 | 21 |
| 2004 | 26 | 19 |
| 2005 | 22 | 14 |
| 2006 | 23 | 15 |
| 2007 | 16 | 21 |
| 2008 | 12 | 18 |
| 2009 | 13 | 14 |
| 2010 | 13 | 18 |
| 2011 | 17 | 14 |
| 2012 | 15 | 17 |
| 2013 | 24 | 16 |
| 2014 | 18 | 10 |
| 2015 | 11 | 8 |
| 2016 | 6 | 10 |
| 2017 | 4 | 5 |
| 2018 | 8 | 6 |
| 2019 | 8 | 7 |
| 2020 | 11 | 6 |
| 2021 | 2 | 2 |
| 2022 | 6 | 3 |
| 2023 | 2 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03J 7/06Using counters or frequency dividers303
- H03J 7/08Using varactors, i.e. voltage variable reactive diodes92
- H03J 7/047Automatic frequency control using an auxiliary signal38
- H03J 7/045Modification of automatic frequency control sensitivity or linearising automatic frequency control operation19
- H03J 7/042With reactance tube0
- H03J 7/14Controlling the magnetic state of inductor cores0
Recent patents
- Universal automatic frequency control for multi-channel receivers27 Jan 2026US 12,537,513 B2Sirius XM Radio Inc.
- Low-area, wide range clocking scheme using inductance/capacitance oscillators28 Jan 2025US 12,212,308 B2Synopsys, Inc.
- Universal automatic frequency control for multi-channel receivers30 Apr 2024US 11,973,492 B2Sirius XM Radio Inc.
- Apparatus and method for applying frequency calibration to local oscillator signal derived from reference clock output of active oscillator4 Jul 2023US 11,693,089 B2Mediatek Inc.
- Signal generator with direct digital synthesis and tracking filter24 Jan 2023US 11,563,426 B2Telefonaktiebolaget LM Ericsson (publ)
- Enhancing receiver operation by modeling oscillator drift26 Feb 2026US 2026/0056328 A1Higher Ground LLC
- Universal automatic frequency control for multi-channel receivers27 Mar 2025US 2025/0105824 A1Sirius XM Radio Inc.
- Universal automatic frequency control for multi-channel receivers10 Aug 2023US 2023/0253954 A1Sirius XM Radio Inc.
- Low-Area, Wide Range Clocking Scheme using Inductance/Capacitance Oscillators2 Mar 2023US 2023/0063149 A1Synopsys, Inc.
- Frequency offset compensation at reflector during frequency compensation interval2 Jun 2022US 2022/0173946 A1Silicon Laboratories Inc.
Most cited
By later US patents
- Method and apparatus for providing location-based information via a computer network718US 6,677,894 B2SnapTrack, Inc. · 2004
- Client-server based remote locator device710US 6,131,067 ASnapTrack, Inc. · 2000
- GPS receiver and method for processing GPS signals593US 5,663,734 APrecision Tracking, Inc. · 1997
- GPS receiver utilizing a communication link582US 5,841,396 ASnapTrack, Inc. · 1998
- Distributed satellite position system processing and application network542US 6,185,427 B2SnapTrack, Inc. · 2001