FI19992240A - amplifier system - Google Patents
amplifier systemInfo
- Publication number
- FI19992240A FI19992240A FI992240A FI19992240A FI19992240A FI 19992240 A FI19992240 A FI 19992240A FI 992240 A FI992240 A FI 992240A FI 19992240 A FI19992240 A FI 19992240A FI 19992240 A FI19992240 A FI 19992240A
- Authority
- FI
- Finland
- Prior art keywords
- amplifier system
- amplifier
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
- H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17471598 | 1998-10-19 | ||
US09/174,715 US6147555A (en) | 1998-10-19 | 1998-10-19 | Amplification system having mask detection |
Publications (2)
Publication Number | Publication Date |
---|---|
FI19992240A true FI19992240A (en) | 2000-04-19 |
FI116494B FI116494B (en) | 2005-11-30 |
Family
ID=22637216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI992240A FI116494B (en) | 1998-10-19 | 1999-10-18 | amplifier |
Country Status (5)
Country | Link |
---|---|
US (1) | US6147555A (en) |
EP (1) | EP0996223B1 (en) |
KR (1) | KR20000029154A (en) |
CA (1) | CA2286542A1 (en) |
FI (1) | FI116494B (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6493543B1 (en) * | 1998-10-19 | 2002-12-10 | Powerwave Technologies, Inc. | Multichannel amplification system using mask detection |
FI106412B (en) * | 1998-11-10 | 2001-01-31 | Nokia Mobile Phones Ltd | Linear power amplifier arrangement and method for operating it |
IT1313906B1 (en) * | 1999-06-15 | 2002-09-26 | Cit Alcatel | ADAPTIVE DIGITAL PRECORRECTION OF NON-LINEARITY INTRODUCED BY POWER AMPLICATORS. |
US6342810B1 (en) * | 1999-07-13 | 2002-01-29 | Pmc-Sierra, Inc. | Predistortion amplifier system with separately controllable amplifiers |
US6687466B1 (en) * | 2000-01-06 | 2004-02-03 | Adc Telecommunications, Inc. | Dynamic distortion control |
US6356149B1 (en) * | 2000-04-10 | 2002-03-12 | Motorola, Inc. | Tunable inductor circuit, phase tuning circuit and applications thereof |
KR20040017167A (en) * | 2002-08-20 | 2004-02-26 | 알에프코어 주식회사 | Rf linear power amplifier |
WO2004054101A1 (en) * | 2002-12-09 | 2004-06-24 | Motorola, Inc. | Decision feed forward equalizer system and method |
US7038540B2 (en) * | 2003-02-14 | 2006-05-02 | Powerwave Technologies, Inc. | Enhanced efficiency feed forward power amplifier utilizing reduced cancellation bandwidth and small error amplifier |
US7123086B2 (en) * | 2003-05-07 | 2006-10-17 | Powerwave Technologies, Inc. | Feed forward amplifier employing positive feedback pilot generation |
WO2005101777A1 (en) | 2004-04-09 | 2005-10-27 | Micronas Semiconductors, Inc. | Apparatus for and method of controlling a digital demodulator coupled to an equalizer |
US7995648B2 (en) * | 2004-04-09 | 2011-08-09 | Trident Microsystems (Far East) Ltd. | Advanced digital receiver |
US6975172B2 (en) * | 2004-05-03 | 2005-12-13 | Peavey Electronics Corporation | Smart voltage rail reduction audio amplifier |
WO2006020950A1 (en) * | 2004-08-12 | 2006-02-23 | Micronas Semiconductors, Inc. | Automatic gain control unit of a receiver |
US7756493B2 (en) * | 2005-04-05 | 2010-07-13 | Powerwave Technologies, Inc. | Feed forward amplifier system and method using the pilot frequency from a positive feedback pilot generation and detection circuit to improve second loop convergence |
US7889810B2 (en) * | 2006-12-15 | 2011-02-15 | Pine Valley Investments, Inc. | Method and apparatus for a nonlinear feedback control system |
US8036260B2 (en) | 2007-08-30 | 2011-10-11 | Freescale Semiconductor, Inc. | System and method for equalizing an incoming signal |
CA2781700C (en) * | 2010-12-23 | 2013-10-01 | Huawei Technologies Co., Ltd. | Signal processing arrangement and signal processing method |
US9031567B2 (en) | 2012-12-28 | 2015-05-12 | Spreadtrum Communications Usa Inc. | Method and apparatus for transmitter optimization based on allocated transmission band |
US9793932B2 (en) * | 2015-03-16 | 2017-10-17 | Mission Microwave Technologies, Inc. | Systems and methods for a predistortion linearizer with frequency compensation |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3342746B2 (en) * | 1993-06-30 | 2002-11-11 | 富士通株式会社 | Linear amplifier |
US5570063A (en) * | 1995-05-18 | 1996-10-29 | Spectrian, Inc. | RF power amplifier with signal predistortion for improved linearity |
AU7462896A (en) * | 1995-08-23 | 1997-03-19 | Motorola, Inc. | Wideband power amplifier control systems |
US5712593A (en) * | 1996-02-05 | 1998-01-27 | Motorola, Inc. | Linear power amplifier with distortion detection |
US5760646A (en) * | 1996-03-29 | 1998-06-02 | Spectrian | Feed-forward correction loop with adaptive predistortion injection for linearization of RF power amplifier |
US5929704A (en) * | 1998-02-20 | 1999-07-27 | Spectrian | Control of RF error extraction using auto-calibrating RF correlator |
-
1998
- 1998-10-19 US US09/174,715 patent/US6147555A/en not_active Expired - Lifetime
-
1999
- 1999-10-18 CA CA002286542A patent/CA2286542A1/en not_active Withdrawn
- 1999-10-18 FI FI992240A patent/FI116494B/en active IP Right Grant
- 1999-10-18 EP EP99308185A patent/EP0996223B1/en not_active Expired - Lifetime
- 1999-10-18 KR KR1019990045125A patent/KR20000029154A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
KR20000029154A (en) | 2000-05-25 |
US6147555A (en) | 2000-11-14 |
FI116494B (en) | 2005-11-30 |
EP0996223B1 (en) | 2005-12-28 |
CA2286542A1 (en) | 2000-04-19 |
EP0996223A1 (en) | 2000-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Ref document number: 116494 Country of ref document: FI |
|
PC | Transfer of assignment of patent |
Owner name: INTEL CORPORATION |