H03F 2203/45101
Control of the dc level being present
Official title: Control of the DC level being present
H03F2203/45101 (Control of the dc level being present) appears on 158 US grants and 148 published applications in this corpus.
Search patents in H03F- Granted patents
- 158
- Published applications
- 148
- Assignees
- 110
- Inventors
- 266
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 0 |
| 2004 | 2 | 2 |
| 2005 | 1 | 3 |
| 2006 | 6 | 6 |
| 2007 | 8 | 9 |
| 2008 | 11 | 23 |
| 2009 | 14 | 22 |
| 2010 | 20 | 7 |
| 2011 | 14 | 6 |
| 2012 | 4 | 12 |
| 2013 | 7 | 6 |
| 2014 | 11 | 4 |
| 2015 | 9 | 8 |
| 2016 | 6 | 6 |
| 2017 | 6 | 6 |
| 2018 | 9 | 8 |
| 2019 | 9 | 4 |
| 2020 | 4 | 6 |
| 2021 | 7 | 5 |
| 2022 | 5 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Broadband on-chip nested-loop alternating current (AC)-coupling systems and methods21 Oct 2025US 12,451,847 B2Analog Devices, Inc.
- Semiconductor device and potential measurement apparatus14 Mar 2023US 11,606,071 B2Sony Semiconductor Solutions Corporation
- Sigma-delta analogue to digital converter22 Nov 2022US 11,509,326 B2NXP USA, Inc.
- Methods and apparatus of adaptive and automatic adjusting and controlling for optimized electrometer analog signal linearity, sensitivity, and range11 Oct 2022US 11,469,088 B2Thermo Finnigan LLC
- Read-out circuitry for acquiring a multi-channel biopotential signal and a sensor for sensing a biopotential signal7 Jun 2022US 11,350,866 B2Imec Vzw
- Low power dc-ac coupled pre-amplifier circuits for high-speed link receivers5 Jun 2025US 2025/0184188 A1STMicroelectronics International N. V.
- Broadband on-chip nested-loop alternating current (ac)-coupling systems and methods1 Jun 2023US 2023/0170852 A1Maxim Integrated Products, Inc.
- Methods and Apparatus of Adaptive and Automatic Adjusting and Controlling for Optimized Electrometer Analog Signal Linearity, Sensitivity, and Range21 Apr 2022US 2022/0122827 A1Thermo Finnigan LLC
- Sigma-delta analogue to digital converter23 Dec 2021US 2021/0399738 A1NXP USA, Inc.
- High bandwidth continuous time linear equalization circuit18 Nov 2021US 2021/0359883 A1NXP B. V.
Most cited
By later US patents
- Galvanic isolator34US 8,385,043 B2Avago Technologies ECBU IP (Singapoare) Pte. Ltd. · 2013
- dB-linear process-independent variable gain amplifier19US 7,889,006 B1Maxim Integrated Products, Inc. · 2011
- High voltage hold-off coil transducer19US 9,105,391 B2Avago Technologies General IP (Singapore) Pte. Ltd. · 2015
- Methods of making coil transducers18US 8,061,017 B2Avago Technologies ECBU IP (Singapore) Pte. Ltd. · 2011
- Galvanic isolators and coil transducers16US 8,436,709 B2Avago Technologies General IP (Singapore) Pte. Ltd. · 2013