H03J 5/0209
Discontinuous tuning using an electrical variable impedance element
Official title: {Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of non preset values}
H03J5/0209 (Discontinuous tuning using an electrical variable impedance element) appears on 7 US grants and 2 published applications in this corpus.
Search patents in H03J- Granted patents
- 7
- Published applications
- 2
- Assignees
- 4
- Inventors
- 8
- Latest grant
- 16 Jan 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 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 | 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 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Mixed-technology combination of programmable elements16 Jan 2018US 9,871,502 B2Wispry, Inc.
- On flex circuit desense filter for wireless communications3 Oct 2017US 9,780,755 B1Apple Inc.
- Mixed-technology combination of programmable elements9 Aug 2016US 9,413,337 B2Wispry, Inc.
- 82 Detent manual varactor tuning system28 Mar 1978US 4,081,771 AZenith Radio Corporation
- Signal overload protection circuit for varactor tuner28 Sep 1976US 3,983,490 AZenith Radio Corporation
Most cited
By later US patents
- 82 Detent manual varactor tuning system15US 4,081,771 AZenith Radio Corporation · 1978
- Abrupt junction varactor diode television tuner9US 3,962,643 AZenith Radio Corporation · 1976
- On flex circuit desense filter for wireless communications5US 9,780,755 B1Apple Inc. · 2017
- Signal overload protection circuit for varactor tuner4US 3,983,490 AZenith Radio Corporation · 1976
- Mixed-technology combination of programmable elements2US 9,413,337 B2Wispry, Inc. · 2016