H03D 3/005
Wherein the demodulated signal is used for controlling a bandpass filter
Official title: {wherein the demodulated signal is used for controlling a bandpass filter (automatic bandwidth control H03G; automatic frequency control H03J7/02)}
H03D3/005 (Wherein the demodulated signal is used for controlling a bandpass filter) appears on 41 US grants and 8 published applications in this corpus.
Search patents in H03D- Granted patents
- 41
- Published applications
- 8
- Assignees
- 26
- Inventors
- 48
- Latest grant
- 24 May 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 2 | 2 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Bandpass filter24 May 2022US 11,342,903 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Phase noise compensation apparatus and method and receiver4 Aug 2020US 10,734,950 B2Fujitsu Limited
- Measuring device26 Nov 2019US 10,491,160 B2Siemens Aktiengesellschaft
- Dynamic high-pass filter cut-off frequency adjustment2 Jul 2019US 10,340,967 B2Apple Inc.
- Channel selector for a radio frequency receiver16 Oct 2018US 10,103,701 B2Continental Automotive France
- Bandpass filter17 Jun 2021US 2021/0184655 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Phase noise compensation apparatus and method and receiver14 Nov 2019US 2019/0348950 A1Fujitsu Limited
- Dynamic high-pass filter cut-off frequency adjustment28 Mar 2019US 2019/0097664 A1Apple Inc.
- Channel selector for a radio frequency receiver8 Feb 2018US 2018/0041180 A1Continental Automotive France
- Messgerät1 Feb 2018US 2018/0034413 A1Siemens Aktiengesellschaft
Most cited
By later US patents
- FM receiver including a phase-quadrature polyphase if filter96US 5,715,529 AU. S. Philips Corporation · 1998
- FM Demodulator with variable bandpass filter37US 4,458,207 AThomson-CSF · 1984
- FM quadrature demodulator with two phase comparison circuits32US 5,341,107 AU. S. Philips Corporation · 1994
- Tracking filter for FM threshold extension31US 4,316,108 A1982
- FM receiver having variable IF filter29US 5,155,862 AH.U.C. Elektronik GmbH · 1992