NO20002210L - FremgangsmÕte for tilpasning, samt forsterkeranordning - Google Patents
FremgangsmÕte for tilpasning, samt forsterkeranordningInfo
- Publication number
- NO20002210L NO20002210L NO20002210A NO20002210A NO20002210L NO 20002210 L NO20002210 L NO 20002210L NO 20002210 A NO20002210 A NO 20002210A NO 20002210 A NO20002210 A NO 20002210A NO 20002210 L NO20002210 L NO 20002210L
- Authority
- NO
- Norway
- Prior art keywords
- signal
- amplifier
- adaptation
- well
- predetermined
- Prior art date
Links
- 230000006978 adaptation Effects 0.000 abstract 3
- 230000002238 attenuated effect Effects 0.000 abstract 1
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
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Steroid Compounds (AREA)
- Compositions Of Oxide Ceramics (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI974087A FI104021B1 (fi) | 1997-10-29 | 1997-10-29 | Adaptaatiomenetelmä ja vahvistinjärjestely |
| PCT/FI1998/000836 WO1999025073A2 (en) | 1997-10-29 | 1998-10-27 | Adaptation method and amplifier arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO20002210D0 NO20002210D0 (no) | 2000-04-28 |
| NO20002210L true NO20002210L (no) | 2000-04-28 |
Family
ID=8549824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20002210A NO20002210L (no) | 1997-10-29 | 2000-04-28 | FremgangsmÕte for tilpasning, samt forsterkeranordning |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6229391B1 (de) |
| EP (1) | EP1025637B1 (de) |
| JP (1) | JP2001523061A (de) |
| CN (1) | CN1164024C (de) |
| AT (1) | ATE262234T1 (de) |
| AU (1) | AU9631998A (de) |
| DE (1) | DE69822492D1 (de) |
| FI (1) | FI104021B1 (de) |
| NO (1) | NO20002210L (de) |
| WO (1) | WO1999025073A2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE0004479D0 (sv) | 2000-12-05 | 2000-12-05 | Ericsson Telefon Ab L M | Method and arrangement relating to electronic compensation |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3922617A (en) * | 1974-11-18 | 1975-11-25 | Cutler Hammer Inc | Adaptive feed forward system |
| GB2107540B (en) * | 1981-10-14 | 1985-06-26 | Marconi Co Ltd | Feedforward amplifiers |
| US4580105A (en) * | 1985-01-25 | 1986-04-01 | At&T Bell Laboratories | Automatic reduction of intermodulation products in high power linear amplifiers |
| GB9009295D0 (en) * | 1990-04-25 | 1990-06-20 | Kenington Peter B | Apparatus and method for reducing distortion in amplification |
| US5455537A (en) * | 1994-08-19 | 1995-10-03 | Radio Frequency Systems, Inc. | Feed forward amplifier |
| JP3361657B2 (ja) * | 1995-07-20 | 2003-01-07 | 松下電器産業株式会社 | フィードフォワード増幅器の制御装置および制御方法 |
| US5892397A (en) * | 1996-03-29 | 1999-04-06 | Spectrian | Adaptive compensation of RF amplifier distortion by injecting predistortion signal derived from respectively different functions of input signal amplitude |
| US6066984A (en) * | 1998-03-16 | 2000-05-23 | Hitachi Denshi Kabushiki Kaisha | Amplifier and amplifying method for amplifying a plurality of signals having different bands simultaneously |
-
1997
- 1997-10-29 FI FI974087A patent/FI104021B1/fi active
-
1998
- 1998-10-27 DE DE69822492T patent/DE69822492D1/de not_active Expired - Lifetime
- 1998-10-27 EP EP98950137A patent/EP1025637B1/de not_active Expired - Lifetime
- 1998-10-27 CN CNB988107171A patent/CN1164024C/zh not_active Expired - Fee Related
- 1998-10-27 AU AU96319/98A patent/AU9631998A/en not_active Abandoned
- 1998-10-27 WO PCT/FI1998/000836 patent/WO1999025073A2/en not_active Ceased
- 1998-10-27 AT AT98950137T patent/ATE262234T1/de not_active IP Right Cessation
- 1998-10-27 JP JP2000519959A patent/JP2001523061A/ja active Pending
-
2000
- 2000-04-14 US US09/550,186 patent/US6229391B1/en not_active Expired - Lifetime
- 2000-04-28 NO NO20002210A patent/NO20002210L/no not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| AU9631998A (en) | 1999-05-31 |
| ATE262234T1 (de) | 2004-04-15 |
| FI104021B (fi) | 1999-10-29 |
| WO1999025073A3 (en) | 1999-07-15 |
| EP1025637A2 (de) | 2000-08-09 |
| CN1164024C (zh) | 2004-08-25 |
| FI974087A0 (fi) | 1997-10-29 |
| NO20002210D0 (no) | 2000-04-28 |
| CN1278374A (zh) | 2000-12-27 |
| FI974087A7 (fi) | 1999-04-30 |
| JP2001523061A (ja) | 2001-11-20 |
| DE69822492D1 (de) | 2004-04-22 |
| EP1025637B1 (de) | 2004-03-17 |
| WO1999025073A2 (en) | 1999-05-20 |
| FI104021B1 (fi) | 1999-10-29 |
| US6229391B1 (en) | 2001-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3343911B2 (ja) | 線形増幅器制御器 | |
| JP2697625B2 (ja) | フィードフォワード増幅器 | |
| US5677962A (en) | Hybrid analog and digital amplifier with a delayed step change in the digital gain | |
| JPH0785522B2 (ja) | 大電力線形増幅器における混変調積の自動減少法 | |
| EP1224731A4 (de) | Verbesserte vorverzerrungskompensation für einen leistungsverstärker | |
| JP2001053552A (ja) | フィードフォワード増幅回路、及びフィードフォワード増幅回路における非線形歪の補償方法。 | |
| KR970031238A (ko) | 선형 증폭 장치 및 방법 | |
| US5874856A (en) | Feed forward amplifier | |
| US6700441B1 (en) | Method and apparatus for reduction of distortion in a feed forward amplifier | |
| US6320461B1 (en) | Ultra-linear feedforward RF power amplifier | |
| US6194964B1 (en) | Predistorter having an automatic gain control circuit and method therefor | |
| GB2375669A (en) | Power stabilisation in an optical communication system | |
| KR19990063180A (ko) | 피드 포워드 증폭기 | |
| EP1193861A3 (de) | Vorwärtskopplungsverstärker | |
| EP0785659A3 (de) | Expansion des Mikrophonsignals zur Unterdrückung des Hintergrundgeräuschs | |
| NO20002210L (no) | FremgangsmÕte for tilpasning, samt forsterkeranordning | |
| EP1309081A3 (de) | Vorwärtsgekoppelter Verstärker zum Kompensieren nicht-linearer Verzerrung | |
| DK1398993T3 (da) | Apparat og fremgangsmåde til tilbagekoblingskompensation i et akustisk forstærkningssystem, især i et høreapparat | |
| GB0027067D0 (en) | Amplifier linearisation | |
| EP1249930A3 (de) | Vorverzerrungslinearisier und Vorverzerrungskompensationsverfahren und Programm | |
| NO20002211L (no) | FremgangsmÕte for styring, samt styringsanordning | |
| JP2001313567A (ja) | 高パワー選択的信号減衰器および減衰方法 | |
| DE50008981D1 (de) | Vorrichtung zur Einstellung der Verstärkung eines Repeaters | |
| NO993805L (no) | FremgangsmÕte for mottaking og mottaker | |
| EP1280271A3 (de) | Vorwärtsgekoppelter Verstärkervorrichtung und Verfahren |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FC2A | Withdrawal, rejection or dismissal of laid open patent application |