H03F 2201/3221
Predistortion by overamplifying in a feedforward stage the distortion signal to have
Official title: Predistortion by overamplifying in a feedforward stage the distortion signal to have a combined main signal and "negative" distortion to form the predistorted signal for a further stage. so that after amplification in the further stage only the amplified main signal remains
H03F2201/3221 (Predistortion by overamplifying in a feedforward stage the distortion signal to have) appears on 22 US grants and 11 published applications in this corpus.
Search patents in H03F- Granted patents
- 22
- Published applications
- 11
- Assignees
- 14
- Inventors
- 36
- Latest grant
- 5 Jul 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
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| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Controller for an electromechanical transducer5 Jul 2022US 11,381,908 B2
- Correction of specific intermodulation products in a concurrent multi-band system1 Mar 2022US 11,265,201 B2Telefonaktiebolaget LM Ericsson (publ)
- Amplifier circuit and method for compensating an output signal provided at an output of the amplifier circuit9 Mar 2021US 10,944,369 B2Telefonaktiebolaget LM Ericsson (publ)
- Method of and circuit for predistortion for a cable TV amplifier14 Jul 2020US 10,715,702 B1Xilinx, Inc.
- Amplifying device, distortion compensating device, and amplifying method16 Feb 2016US 9,263,994 B2Fujitsu Limited
- Correction of specific intermodulation products in a concurrent multi-band system13 May 2021US 2021/0144046 A1Telefonaktiebolaget LM Ericsson (publ)
- Controller for an electromechanical transducer4 Jun 2020US 2020/0177990 A1
- Amplifier Circuit and Method for Compensating an Output Signal Provided at an Output of the Amplifier Circuit30 May 2019US 2019/0165746 A1Telefonaktiebolaget LM Ericsson (publ)
- Switchable multi-output low-noise amplifier with distortion cancellation18 Jun 2015US 2015/0171798 A1Motorola Solutions, Inc.
- Amplifying device, distortion compensating device, and amplifying method17 Jul 2014US 2014/0197885 A1Fujitsu Limited
Most cited
By later US patents
- Distortion compensation control for a power amplifier114US 5,770,971 ANorthern Telecom Limited · 1998
- Predistortion compensated linear amplifier82US 4,879,519 AAmerican Telephone and Telegraph Company, AT&T Bell Labs · 1989
- Linearization of an amplifier employing modified feedforward correction40US 5,850,162 AHarris Corporation · 1998
- Apparatus and method for performing error corrected amplification in a radio frequency system38US 5,621,354 AMotorola, Inc. · 1997
- Method and apparatus for linearizing an amplifier35US 6,242,978 B1Harris Corporation · 2001