H03F 2203/45251
The dif amp has a cross coupling circuit in the source circuit
Official title: the dif amp has a cross coupling circuit in the source circuit of the amplifying transistors
H03F2203/45251 (The dif amp has a cross coupling circuit in the source circuit) appears on 14 US grants and 3 published applications in this corpus.
Search patents in H03F- Granted patents
- 14
- Published applications
- 3
- Assignees
- 14
- Inventors
- 22
- Latest grant
- 14 Jun 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 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 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Data storage device employing amplifier feedback for impedance matching14 Jun 2022US 11,361,786 B1Western Digital Technologies, Inc.
- Power amplifier with nulling monitor circuit4 May 2021US 10,998,863 B2Analog Devices, Inc.
- Differential dual port current conveyor circuit27 Feb 2007US 7,183,851 B2Intel Corporation
- Differential amplifying circuit25 May 1999US 5,907,260 AMitsumi Electric Co., Ltd.
- Frequency converter apparatus with distortion compensating circuit3 Feb 1998US 5,715,532 AMatsushita Electric Industrial Co., Ltd.
- Data storage device employing amplifier feedback for impedance matching26 May 2022US 2022/0165299 A1Western Digital Technologies, Inc.
- Power amplifier with nulling monitor circuit18 Apr 2019US 2019/0115876 A1Analog Devices, Inc.
- Differential dual port current conveyor circuit5 Jan 2006US 2006/0001490 A1Intel Corporation
Most cited
By later US patents
- NPN Operational amplifier83US 4,468,629 ATRW Inc. · 1984
- Frequency converter apparatus with distortion compensating circuit15US 5,715,532 AMatsushita Electric Industrial Co., Ltd. · 1998
- Wide-band differential amplifier using gm-cancellation12US 5,113,147 AMinnesota Mining and Manufacturing Company · 1992
- Quadcomp amplifier11US 4,748,420 ATektronix, Inc. · 1988
- Differential amplifier circuit10US 4,769,617 AKabushiki Kaisha Toshiba · 1988