H03F 1/3235
Using a pilot signal
Official title: {using a pilot signal}
H03F1/3235 (Using a pilot signal) appears on 135 US grants and 56 published applications in this corpus.
Search patents in H03F- Granted patents
- 135
- Published applications
- 56
- Assignees
- 53
- Inventors
- 191
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 9 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 2 |
| 2002 | 9 | 6 |
| 2003 | 9 | 16 |
| 2004 | 14 | 8 |
| 2005 | 5 | 5 |
| 2006 | 8 | 4 |
| 2007 | 6 | 3 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 2 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 3 | 3 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 2 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Adaptive biasing procedure to increase auxiliary PA efficiency for an integrated echo canceller23 Dec 2025US 12,506,515 B2Zebra Technologies Corporation
- Feed-forward power amplifier with offline tuning capability8 Dec 2020US 10,862,438 B1Motorola Solutions, Inc.
- Method and apparatus for calibration and equalization of multiport amplifiers (MPAs)21 Jan 2020US 10,541,656 B1Space Systems/Loral, Inc.
- Pilot signal generation circuit5 May 2015US 9,024,685 B2AeroVironment, Inc.
- Pilot signal generation circuit31 Dec 2013US 8,618,877 B2AeroVironment, Inc.
- Feed-forward amplifier and method for transitioning between offline and online tuning states2 Jul 2026US 2026/0189195 A1
- Adaptive Biasing Procedure to Increase Auxiliary PA Efficiency for an Integrated Echo Canceller10 Jul 2025US 2025/0226856 A1Zebra Technologies Corporation
- Passive mixer with feed-forward cancellation8 Apr 2021US 2021/0104981 A1QUALCOMM Incorporated
- Method and apparatus for calibration and equalization of multiport amplifiers (mpas)23 Jan 2020US 2020/0028475 A1Space Systems/Loral, Inc.
- Pilot signal generation circuit26 Jun 2014US 2014/0176236 A1AeroVironment, Inc.
Most cited
By later US patents
- Feed-forward power amplifier system with adaptive control and control method131US 5,485,120 AAval Communications Inc. · 1996
- Distortion compensation control for a power amplifier114US 5,770,971 ANorthern Telecom Limited · 1998
- Delay mismatched feed forward amplifier system using penalties and floors for control102US 7,126,418 B2Powerwave Technologies, Inc. · 2006
- Feed forward cancellation amplifier utilizing dynamic vector control85US 5,508,657 AAML Communications, Inc. · 1996
- Feed-forward amplifier83US 6,392,483 B2Ntt Docomo, Inc. · 2002