H03D 3/08
By means of diodes
Official title: by means of diodes, e.g. Foster-Seeley discriminator
H03D3/08 (By means of diodes) appears on 12 US grants and 2 published applications in this corpus.
Search patents in H03D- Granted patents
- 12
- Published applications
- 2
- Assignees
- 12
- Inventors
- 21
- Latest grant
- 15 Oct 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 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 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Filter apparatus and power supply system15 Oct 2019US 10,447,225 B2Huawei Technologies Co., Ltd.
- Truncated frequency discriminator21 Dec 1993US 5,272,559 AFrance Telecom Etablissement Autonome de Droit Public
- Ratio discriminator6 Jan 1987US 4,634,991 ASGS-ATES Componenti Elettronici S.p.A.
- Bridge circuit demodulator21 Oct 1986US 4,618,829 AU. S. Philips Corporation
- FM-Receiver using a ratio detector with silicon diodes12 Feb 1985US 4,499,605 AU. S. Philips Corporation
Most cited
By later US patents
- Multi-channel frequency converter having automatic control99US 3,944,931 AHitachi, Ltd. · 1976
- FM Detecting circuit8US 4,342,000 ANippon Gakki Seizo Kabushiki Kaisha · 1982
- Frequency discriminating circuit4US 3,997,797 ASony Corporation · 1976
- Noise suppression circuit for use with FM receiver3US 4,225,975 AMitsubishi Denki Kabushiki Kaisha · 1980
- AFT circuit2US 4,220,974 ARCA Corporation · 1980