DE69015944D1 - Vorverzerrungseinrichtung für digitale Übertragungssysteme. - Google Patents
Vorverzerrungseinrichtung für digitale Übertragungssysteme.Info
- Publication number
- DE69015944D1 DE69015944D1 DE69015944T DE69015944T DE69015944D1 DE 69015944 D1 DE69015944 D1 DE 69015944D1 DE 69015944 T DE69015944 T DE 69015944T DE 69015944 T DE69015944 T DE 69015944T DE 69015944 D1 DE69015944 D1 DE 69015944D1
- Authority
- DE
- Germany
- Prior art keywords
- transmission systems
- digital transmission
- predistortion device
- predistortion
- digital
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/36—Modulator circuits; Transmitter circuits
- H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
- H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
- H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/438—Separate feedback of amplitude and phase signals being present
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/57—Separate feedback of real and complex signals being present
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Power Engineering (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Dc Digital Transmission (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8913093A FR2652965A1 (fr) | 1989-10-06 | 1989-10-06 | Dispositif de predistorsion pour systeme de transmission numerique. |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69015944D1 true DE69015944D1 (de) | 1995-02-23 |
DE69015944T2 DE69015944T2 (de) | 1995-08-24 |
Family
ID=9386166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69015944T Expired - Fee Related DE69015944T2 (de) | 1989-10-06 | 1990-10-01 | Vorverzerrungseinrichtung für digitale Übertragungssysteme. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5105445A (de) |
EP (1) | EP0421532B1 (de) |
JP (1) | JP3076593B2 (de) |
AU (1) | AU641874B2 (de) |
CA (1) | CA2026819A1 (de) |
DE (1) | DE69015944T2 (de) |
FR (1) | FR2652965A1 (de) |
Families Citing this family (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2644638B1 (de) * | 1989-03-14 | 1991-05-31 | Labo Electronique Physique | |
US5177769A (en) * | 1991-05-03 | 1993-01-05 | Bell Communications Research, Inc. | Digital circuits for generating signal sequences for linear TDMA systems |
SE468616B (sv) * | 1991-06-12 | 1993-02-15 | Ericsson Telefon Ab L M | Foerfarande foer kompensering av saendarnyttosignalens beroende av oeverfoeringsfunktionen foer ett combinerfilter |
US5295138A (en) * | 1992-04-21 | 1994-03-15 | Northwest Starscon Limited Partnership | Apparatus and method for optimal frequency planning in frequency division multiplexing transmissions |
FR2692092B1 (fr) * | 1992-06-05 | 1994-07-22 | Thomson Csf | Dispositif de traitement et de precorrection d'un signal audiofrequence avant son amplification dans une chaine d'amplification d'un emetteur a modulation d'amplitude. |
JP3166321B2 (ja) * | 1992-07-01 | 2001-05-14 | 日本電気株式会社 | 変調信号送信システム |
US5351016A (en) * | 1993-05-28 | 1994-09-27 | Ericsson Ge Mobile Communications Inc. | Adaptively self-correcting modulation system and method |
DE69310775T2 (de) * | 1993-07-09 | 1997-11-13 | Edmunde Eugene Newhall | Systeme mit erhöhter geschwindigkeit der informationsübertragung, welche eingebettete abtastmodulation und vorverzerrungsausgleich verwenden |
US5612991A (en) * | 1995-03-31 | 1997-03-18 | Intel Corporation | Use of RSSI indication for improved data transmission over amps network |
FR2739239B1 (fr) * | 1995-09-27 | 1997-11-14 | Alcatel Telspace | Dispositif de correction d'un defaut de quadrature d'un modulateur en quadrature et/ou d'un demodulateur d'un signal a pluralite d'etats de phase, emetteur et recepteur correspondants |
US5881376A (en) * | 1995-12-15 | 1999-03-09 | Telefonaktiebolaget Lm Ericsson | Digital calibration of a transceiver |
US5661758A (en) * | 1996-01-16 | 1997-08-26 | Long; Michael E. | Single cycle data encoding method and apparatus |
US6091787A (en) * | 1996-12-24 | 2000-07-18 | General Dynamics Government Systems Corporation | Symbol lock detector |
US5987069A (en) * | 1996-12-24 | 1999-11-16 | Gte Government Systems Corporation | Method and apparatus for variably allocating upstream and downstream communication spectra |
KR100251561B1 (ko) | 1997-06-19 | 2000-04-15 | 윤종용 | 디지털통신시스템의송신기선형화장치및방법 |
US6081158A (en) * | 1997-06-30 | 2000-06-27 | Harris Corporation | Adaptive pre-distortion apparatus for linearizing an amplifier output within a data transmission system |
US6112062A (en) * | 1997-09-26 | 2000-08-29 | The Whitaker Corporation | Predistortion for high power amplifiers |
JP2000013247A (ja) * | 1998-06-18 | 2000-01-14 | Nec Corp | 送信電力制御回路 |
US6304594B1 (en) | 1998-07-27 | 2001-10-16 | General Dynamics Government Systems Corporation | Interference detection and avoidance technique |
US6191653B1 (en) | 1998-11-18 | 2001-02-20 | Ericsson Inc. | Circuit and method for linearizing amplitude modulation in a power amplifier |
US6194963B1 (en) | 1998-11-18 | 2001-02-27 | Ericsson Inc. | Circuit and method for I/Q modulation with independent, high efficiency amplitude modulation |
US6295442B1 (en) | 1998-12-07 | 2001-09-25 | Ericsson Inc. | Amplitude modulation to phase modulation cancellation method in an RF amplifier |
US6212229B1 (en) | 1998-12-16 | 2001-04-03 | General Dynamics Government Systems Corporation | Adaptive pre-emphasis technique |
US6493400B1 (en) | 1999-04-19 | 2002-12-10 | Bae Systems Aerospace Electronics Inc. | Harmonic cancellation system |
US6473133B1 (en) * | 1999-05-14 | 2002-10-29 | Harris Corporation | Broadcast transmission system with correction for distortion caused by amplifying and signal conditioning components at a different rate |
FR2824437B1 (fr) * | 2001-05-04 | 2005-06-03 | Eads Defence & Security Ntwk | Generateur d'un signal radiofrequence module en phase ou frequence et en amplitude, et emetteur l'incorporant |
US6700439B2 (en) | 2002-04-11 | 2004-03-02 | Andrew Corporation | Zero-bias bypass switch |
US6812786B2 (en) * | 2002-04-11 | 2004-11-02 | Andrew Corporation | Zero-bias bypass switching circuit using mismatched 90 degrees hybrid |
US8472897B1 (en) | 2006-12-22 | 2013-06-25 | Dali Systems Co. Ltd. | Power amplifier predistortion methods and apparatus |
US8380143B2 (en) | 2002-05-01 | 2013-02-19 | Dali Systems Co. Ltd | Power amplifier time-delay invariant predistortion methods and apparatus |
US6985704B2 (en) | 2002-05-01 | 2006-01-10 | Dali Yang | System and method for digital memorized predistortion for wireless communication |
US8811917B2 (en) | 2002-05-01 | 2014-08-19 | Dali Systems Co. Ltd. | Digital hybrid mode power amplifier system |
JP2004032609A (ja) * | 2002-06-28 | 2004-01-29 | Nec Corp | 非線形歪み補償回路 |
US6801582B2 (en) * | 2002-09-13 | 2004-10-05 | Allied Telesyn, Inc. | Apparatus and method for improving an output signal from a nonlinear device through dynamic signal pre-distortion based upon Lagrange interpolation |
US7099399B2 (en) * | 2004-01-27 | 2006-08-29 | Crestcom, Inc. | Distortion-managed digital RF communications transmitter and method therefor |
US7469491B2 (en) | 2004-01-27 | 2008-12-30 | Crestcom, Inc. | Transmitter predistortion circuit and method therefor |
US7430248B2 (en) * | 2004-01-27 | 2008-09-30 | Crestcom, Inc. | Predistortion circuit and method for compensating nonlinear distortion in a digital RF communications transmitter |
US20050163249A1 (en) * | 2004-01-27 | 2005-07-28 | Crestcom, Inc. | Predistortion circuit and method for compensating linear distortion in a digital RF communications transmitter |
US20060104385A1 (en) * | 2004-11-15 | 2006-05-18 | Newhall Edmunde E | Systems with increased information rates using embedded sample modulation and predistortion equalization implemented on metallic lines |
US7586428B2 (en) * | 2005-02-25 | 2009-09-08 | Telefonaktiebolaget L M Ericsson (Publ) | Non-linear processing of signals |
US20070082617A1 (en) * | 2005-10-11 | 2007-04-12 | Crestcom, Inc. | Transceiver with isolation-filter compensation and method therefor |
CN101479956B (zh) | 2006-04-28 | 2013-07-31 | 大力系统有限公司 | 用于无线通信的高效率线性化功率放大器 |
US20080134394P1 (en) * | 2006-12-01 | 2008-06-05 | Syngenta Seeds B.V. | Geranium plant named 'Zonadared' |
US7724840B2 (en) * | 2006-12-19 | 2010-05-25 | Crestcom, Inc. | RF transmitter with predistortion and method therefor |
CN102017553B (zh) | 2006-12-26 | 2014-10-15 | 大力系统有限公司 | 用于多信道宽带通信系统中的基带预失真线性化的方法和系统 |
US20080285640A1 (en) * | 2007-05-15 | 2008-11-20 | Crestcom, Inc. | RF Transmitter With Nonlinear Predistortion and Method Therefor |
CN101914595B (zh) * | 2010-09-07 | 2012-09-05 | 河南工业大学 | 一种酶法合成阿魏酸糖酯衍生物的方法 |
KR101829517B1 (ko) | 2010-09-14 | 2018-02-14 | 달리 시스템즈 씨오. 엘티디. | 원격으로 재구성가능한 분산 안테나 시스템 및 방법 |
US9379742B2 (en) | 2011-04-21 | 2016-06-28 | Mediatek Singapore Pte. Ltd. | RF transmitter, integrated circuit device, wireless communication unit and method therefor |
US9647866B2 (en) | 2011-04-21 | 2017-05-09 | Mediatek Singapore Pte, Ltd. | RF transmitter, integrated circuit device, wireless communication unit and method therefor |
US9088319B2 (en) * | 2011-04-21 | 2015-07-21 | Mediatek Singapore Pte. Ltd. | RF transmitter architecture, integrated circuit device, wireless communication unit and method therefor |
US10129055B2 (en) | 2011-04-21 | 2018-11-13 | Mediatek Singapore Pte. Ltd. | PA cell, PA module, wireless communication unit, RF transmitter architecture and method therefor |
US9559879B2 (en) | 2011-04-21 | 2017-01-31 | Mediatek Singapore Pte. Ltd. | PA cell, PA module, wireless communication unit, RF transmitter architecture and method therefor |
JP6286908B2 (ja) * | 2013-07-19 | 2018-03-07 | 住友電気工業株式会社 | 増幅装置及び無線通信装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4291277A (en) * | 1979-05-16 | 1981-09-22 | Harris Corporation | Adaptive predistortion technique for linearizing a power amplifier for digital data systems |
US4462001A (en) * | 1982-02-22 | 1984-07-24 | Canadian Patents & Development Limited | Baseband linearizer for wideband, high power, nonlinear amplifiers |
US4554514A (en) * | 1984-12-21 | 1985-11-19 | Rca Corporation | Predistortion circuit with feedback |
US4700151A (en) * | 1985-03-20 | 1987-10-13 | Nec Corporation | Modulation system capable of improving a transmission system |
US4675618A (en) * | 1986-06-09 | 1987-06-23 | Rockwell International Corporation | Linearizer circuit for frequency modulation oscillator |
FR2642243B1 (fr) * | 1989-01-24 | 1991-04-19 | Labo Electronique Physique | Circuit de predistorsion adaptative |
FR2644638B1 (de) * | 1989-03-14 | 1991-05-31 | Labo Electronique Physique | |
FR2652969A1 (fr) * | 1989-10-06 | 1991-04-12 | Philips Electronique Lab | Dispositif de predistorsion pour systeme de transmission numerique. |
-
1989
- 1989-10-06 FR FR8913093A patent/FR2652965A1/fr not_active Withdrawn
-
1990
- 1990-10-01 DE DE69015944T patent/DE69015944T2/de not_active Expired - Fee Related
- 1990-10-01 EP EP90202588A patent/EP0421532B1/de not_active Expired - Lifetime
- 1990-10-03 JP JP02266162A patent/JP3076593B2/ja not_active Expired - Fee Related
- 1990-10-03 CA CA002026819A patent/CA2026819A1/en not_active Abandoned
- 1990-10-04 AU AU63747/90A patent/AU641874B2/en not_active Ceased
- 1990-10-09 US US07/595,120 patent/US5105445A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU6374790A (en) | 1991-04-11 |
FR2652965A1 (fr) | 1991-04-12 |
EP0421532B1 (de) | 1995-01-11 |
AU641874B2 (en) | 1993-09-30 |
US5105445A (en) | 1992-04-14 |
DE69015944T2 (de) | 1995-08-24 |
CA2026819A1 (en) | 1991-04-07 |
JP3076593B2 (ja) | 2000-08-14 |
EP0421532A1 (de) | 1991-04-10 |
JPH03135249A (ja) | 1991-06-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N |
|
8320 | Willingness to grant licences declared (paragraph 23) | ||
8328 | Change in the person/name/address of the agent |
Representative=s name: VOLMER, G., DIPL.-ING., PAT.-ANW., 52066 AACHEN |
|
8339 | Ceased/non-payment of the annual fee |