H03F 1/025
By using a signal derived from the input signal
Official title: {by using a signal derived from the input signal}
H03F1/025 (By using a signal derived from the input signal) appears on 290 US grants and 331 published applications in this corpus.
Search patents in H03F- Granted patents
- 290
- Published applications
- 331
- Assignees
- 120
- Inventors
- 491
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 2 | 1 |
| 2002 | 3 | 2 |
| 2003 | 4 | 6 |
| 2004 | 5 | 4 |
| 2005 | 2 | 8 |
| 2006 | 10 | 7 |
| 2007 | 5 | 5 |
| 2008 | 4 | 10 |
| 2009 | 1 | 6 |
| 2010 | 8 | 9 |
| 2011 | 7 | 9 |
| 2012 | 9 | 13 |
| 2013 | 10 | 12 |
| 2014 | 18 | 36 |
| 2015 | 27 | 19 |
| 2016 | 22 | 15 |
| 2017 | 24 | 22 |
| 2018 | 23 | 20 |
| 2019 | 20 | 24 |
| 2020 | 30 | 17 |
| 2021 | 10 | 9 |
| 2022 | 5 | 9 |
| 2023 | 8 | 16 |
| 2024 | 11 | 21 |
| 2025 | 13 | 15 |
| 2026 | 9 | 16 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Fast-switching power management integrated circuit26 May 2026US 12,640,646 B2Qorvo US, Inc.
- Power supply modulation device, power supply modulation method, and power supply modulation-type amplifier26 May 2026US 12,640,687 B2Mitsubishi Electric Corporation
- Clipping prevention in switched mode drivers26 May 2026US 12,640,694 B2Cirrus Logic, Inc.
- Supply generator and associated control methods31 Mar 2026US 12,592,668 B1Murata Manufacturing Co., Ltd.
- Multichannel driver circuitry and operation24 Mar 2026US 12,587,191 B2Cirrus Logic, Inc.
- Voltage ripple suppression and memory distortion neutralization in a wireless transmission circuit27 Aug 2026US 2026/0254420 A1Qorvo US, Inc.
- Current-accelerated voltage transition in a wireless communication circuit20 Aug 2026US 2026/0246483 A1Qorvo US, Inc.
- Distributed power management circuit30 Jul 2026US 2026/0221942 A1Qorvo US, Inc.
- Wireless Circuitry with Weighted Envelope Tracking Delay16 Jul 2026US 2026/0205146 A1Apple Inc.
- Multichannel driver circuitry and operation14 May 2026US 2026/0135558 A1Cirrus Logic International Semiconductor Ltd.
Most cited
By later US patents
- Multi-mode amplifier system294US 7,043,213 B2Northrop Grumman Corporation · 2006
- RF amplifier architecture and related techniques141US 8,824,978 B2Eta Devices, Inc. · 2014
- Linearization circuits and methods for multilevel power amplifier systems133US 8,829,993 B2Eta Devices, Inc. · 2014
- Envelope tracking with low frequency loss correction123US 9,831,834 B2Skyworks Solutions, Inc. · 2017
- Apparatus and methods for envelope tracking calibration114US 8,989,682 B2Nujira Limited · 2015