H03F 3/45955
Measuring at the input circuit of the differential amplifier
Official title: {Measuring at the input circuit of the differential amplifier}
H03F3/45955 (Measuring at the input circuit of the differential amplifier) appears on 59 US grants and 40 published applications in this corpus.
Search patents in H03F- Granted patents
- 59
- Published applications
- 40
- Assignees
- 56
- Inventors
- 123
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 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 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 2 |
| 2003 | 8 | 3 |
| 2004 | 2 | 3 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 2 | 1 |
| 2012 | 1 | 3 |
| 2013 | 1 | 0 |
| 2014 | 3 | 2 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 5 | 3 |
| 2018 | 3 | 2 |
| 2019 | 4 | 3 |
| 2020 | 3 | 2 |
| 2021 | 1 | 1 |
| 2022 | 1 | 3 |
| 2023 | 1 | 2 |
| 2024 | 3 | 4 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Differential driver having input signal-controlled common-mode reference30 Sep 2025US 12,431,850 B2Cirrus Logic, Inc.
- Method and apparatus for interference reduction in optical sensing receivers22 Oct 2024US 12,123,774 B1Avago Technologies International Sales Pte. Limited
- Signal receiver11 Jun 2024US 12,009,949 B2Novatek Microelectronics Corp.
- Amplifier circuitry and current sensor having the same7 May 2024US 11,979,120 B2Alps Alpine Co., Ltd.
- Current sensing circuitry4 Apr 2023US 11,621,683 B2Cirrus Logic, Inc.
- Amplifier circuit25 Jun 2026US 2026/0180520 A1Industrial Technology Research Institute
- Methods and apparatus to reduce mismatches between differential pairs of signals10 Apr 2025US 2025/0119106 A1
- Method and apparatus for interference reduction in optical sensing receivers31 Oct 2024US 2024/0361180 A1Avago Technologies International Sales Pte. Limited
- Method and apparatus for interference reduction in optical sensing receivers31 Oct 2024US 2024/0361182 A1Avago Technologies International Sales Pte. Limited
- Fully differential amplifier29 Feb 2024US 2024/0072746 A1Harman International Industries, Incorporated
Most cited
By later US patents
- Compensation circuit for nullifying differential offset voltage and regulating common mode voltage of differential signals113US 4,833,418 AArchive Corporation · 1989
- Sample and hold circuit and method with common mode differential signal feedback for converting single-ended signals to differential signals37US 5,963,156 ANational Semiconductor Corporation · 1999
- Line terminal circuit for controlling the common mode voltage level on a transmission line29US 6,654,462 B1Telefonaktiebolaget LM Ericsson (publ) · 2003
- Differential line driver having adjustable common mode operation18US 6,507,223 B2Sigmatel, Inc. · 2003
- Differential amplifier apparatus17US 5,095,282 ANvision, Inc. · 1992