H03D 3/26
Demodulation of angle-, frequency- or phase- modulated oscillations: by means of sloping
Official title: by means of sloping amplitude/frequency characteristic of tuned or reactive circuit (H03D3/28 - H03D3/32 takes precedence)
H03D3/26 (Demodulation of angle-, frequency- or phase- modulated oscillations: by means of sloping) appears on 26 US grants and 12 published applications in this corpus.
Search patents in H03D- Granted patents
- 26
- Published applications
- 12
- Assignees
- 19
- Inventors
- 47
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
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| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 2 |
| 2015 | 2 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 0 | 0 |
| 2023 | 2 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods and apparatus for phase change detection using a resonator15 Jul 2025US 12,362,975 B2Raytheon Company
- Filter that minimizes in-band noise and maximizes detection sensitivity of exponentially-modulated signals23 Jul 2024US 12,047,049 B2Dynaspot Corp.
- Methods and apparatus for phase change detection using a resonator29 Aug 2023US 11,743,083 B2Raytheon Company
- Filter that minimizes in-band noise and maximizes detection sensitivity of exponentially-modulated signals4 Apr 2023US 11,621,701 B2Dynaspot Corp.
- Filter that minimizes in-band noise and maximizes detection sensitivity of exponentially-modulated signals10 Apr 2018US 9,941,862 B2Dynaspot Corp.
- Methods and apparatus for phase change detection using a resonator16 Nov 2023US 2023/0370313 A1Raytheon Company
- Filter that minimizes in-band noise and maximizes detection sensitivity of exponentially-modulated signals29 Jun 2023US 2023/0208401 A1Dynaspot Corp.
- Filter that minimizes in-band noise and maximizes detection sensitivity of exponentially-modulated signals23 Sep 2021US 2021/0297064 A1Dynaspot Corp.
- Methods and apparatus for phase change detection using a resonator21 Jan 2021US 2021/0021449 A1Raytheon Company
- A filter that minimizes in-band noise and maximizes detection sensitivity of exponentially-modulated signals18 May 2017US 2017/0141761 A1Dynaspot Corp.
Most cited
By later US patents
- Electronic viewing aid88US 5,818,381 ARoscoe C. Williams Limited · 1998
- Electronically tunable microwave frequency FET discriminator55US 4,110,700 ARCA Corporation · 1978
- AFT Circuit52US 4,321,624 ARCA Corporation · 1982
- GaAs Dual-gate FET frequency discriminator45US 4,255,714 ARCA Corporation · 1981
- FMCW radar system30US 6,094,158 A2000