H03F 3/456
By using a feedback circuit
Official title: {by using a feedback circuit}
H03F3/456 (By using a feedback circuit) appears on 49 US grants and 37 published applications in this corpus.
Search patents in H03F- Granted patents
- 49
- Published applications
- 37
- Assignees
- 44
- Inventors
- 103
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 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 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 8 | 2 |
| 2002 | 2 | 3 |
| 2003 | 2 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 2 |
| 2007 | 1 | 0 |
| 2008 | 2 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 3 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 4 | 4 |
| 2021 | 3 | 3 |
| 2022 | 2 | 0 |
| 2023 | 1 | 2 |
| 2024 | 2 | 6 |
| 2025 | 2 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Receiver circuit and optical receiver circuit4 Aug 2026US 12,700,841 B2Sumitomo Electric Industries, Ltd.
- Built-in ripple injection circuit and control chip30 Jun 2026US 12,671,316 B2Shanghai Bright Power Semiconductor Co., Ltd.
- Baseline restorer circuit5 Aug 2025US 12,381,539 B2ams International AG
- Auto-calibration systems and methods for reducing amplifier offset29 Jul 2025US 12,375,051 B2Maxim Integrated Products, Inc.
- Differential amplifier capable of offset compensation of differential output signal and adaptive continuous-time linear equalizer including the same24 Dec 2024US 12,176,871 B2Samsung Electronics Co., Ltd.
- Signal processing circuit16 Apr 2026US 2026/0106588 A1Fuji Electric Co., Ltd.
- Biasing circuit with offset correction and high-speed input stage breakdown protection16 Oct 2025US 2025/0323605 A1MACOM Technology Solutions Holdings, Inc.
- Built-in ripple injection circuit and control chip19 Sep 2024US 2024/0313636 A1Shanghai Bright Power Semiconductor Co., Ltd.
- Logarithmic current to voltage converters with emitter resistance compensation25 Jul 2024US 2024/0250647 A1Analog Devices, Inc.
- Pseudo resistor with autotune function4 Jul 2024US 2024/0223161 A1Novatek Microelectronics Corp.
Most cited
By later US patents
- Photoreceiver/amplifier circuit, optical pickup device, and optical disk device35US 7,868,702 B2Sharp Kabushiki Kaisha · 2011
- Differential amplifier with reduced even order non-linearity and associated methods30US 6,188,282 B1Ericsson Inc. · 2001
- Automatic gain control circuit with high linearity and monotonically correlated offset voltage24US 6,538,507 B2Intersil Americas Inc. · 2003
- Current mirror circuit22US 6,278,326 B1Texas Instruments Tucson Corporation · 2001
- Receiver for RF signals21US 6,298,226 B1Conexant Systems, Inc. · 2001