FI20065783A0 - Signalfördistorsion i radiosändare - Google Patents
Signalfördistorsion i radiosändareInfo
- Publication number
- FI20065783A0 FI20065783A0 FI20065783A FI20065783A FI20065783A0 FI 20065783 A0 FI20065783 A0 FI 20065783A0 FI 20065783 A FI20065783 A FI 20065783A FI 20065783 A FI20065783 A FI 20065783A FI 20065783 A0 FI20065783 A0 FI 20065783A0
- Authority
- FI
- Finland
- Prior art keywords
- distortion
- signal pre
- radio transmitters
- transmitters
- radio
- Prior art date
Links
Classifications
-
- 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
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or 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
- 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
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0425—Circuits with power amplifiers with linearisation using predistortion
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Information Transfer Systems (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20065783A FI20065783A0 (sv) | 2006-12-08 | 2006-12-08 | Signalfördistorsion i radiosändare |
US11/657,542 US7742748B2 (en) | 2006-12-08 | 2007-01-25 | Signal predistortion in radio transmitter |
US11/681,722 US7594059B2 (en) | 2006-12-08 | 2007-03-02 | Multi-interfaced accessory device for use with host computing systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20065783A FI20065783A0 (sv) | 2006-12-08 | 2006-12-08 | Signalfördistorsion i radiosändare |
Publications (1)
Publication Number | Publication Date |
---|---|
FI20065783A0 true FI20065783A0 (sv) | 2006-12-08 |
Family
ID=37623799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20065783A FI20065783A0 (sv) | 2006-12-08 | 2006-12-08 | Signalfördistorsion i radiosändare |
Country Status (2)
Country | Link |
---|---|
US (2) | US7742748B2 (sv) |
FI (1) | FI20065783A0 (sv) |
Families Citing this family (63)
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US8380143B2 (en) * | 2002-05-01 | 2013-02-19 | Dali Systems Co. Ltd | Power amplifier time-delay invariant predistortion methods and apparatus |
US8811917B2 (en) | 2002-05-01 | 2014-08-19 | Dali Systems Co. Ltd. | Digital hybrid mode power amplifier system |
JP5236661B2 (ja) | 2006-12-26 | 2013-07-17 | ダリ システムズ カンパニー リミテッド | 多チャンネル広帯域通信システムにおけるベースバンドプリディストーション線形化の方法及びシステム |
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US8059748B2 (en) * | 2007-09-19 | 2011-11-15 | Qualcomm, Incorporated | Multi-mode and multi-band transmitters for wireless communication |
FI20075690A0 (sv) * | 2007-10-01 | 2007-10-01 | Nokia Corp | Signalfördistorsion i radiosändare |
US8160448B2 (en) * | 2007-10-17 | 2012-04-17 | Hitachi, Ltd. | Communication system using passive optical network and passive optical network |
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US9497559B2 (en) | 2011-07-22 | 2016-11-15 | Fairchild Semiconductor Corporation | MIC/GND detection and automatic switch |
US9112649B2 (en) * | 2012-10-11 | 2015-08-18 | Qualcomm Incorporated | Method and apparatus for predicting signal characteristics for a nonlinear power amplifier |
US8829993B2 (en) | 2012-10-30 | 2014-09-09 | Eta Devices, Inc. | Linearization circuits and methods for multilevel power amplifier systems |
US9537456B2 (en) | 2012-10-30 | 2017-01-03 | Eta Devices, Inc. | Asymmetric multilevel backoff amplifier with radio-frequency splitter |
JP6580488B2 (ja) * | 2012-11-27 | 2019-09-25 | イーティーエー デバイシズ, インコーポレイテッド | マルチレベル電力増幅器システムのための線形化回路および方法 |
US20140218107A1 (en) * | 2013-02-04 | 2014-08-07 | Qualcomm Incorporated | Method and apparatus for applying predistortion to an input signal for a nonlinear power amplifier |
US9608675B2 (en) | 2013-02-11 | 2017-03-28 | Qualcomm Incorporated | Power tracker for multiple transmit signals sent simultaneously |
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KR101738730B1 (ko) | 2013-04-23 | 2017-05-22 | 스카이워크스 솔루션즈, 인코포레이티드 | 전력 증폭기 시스템에서의 엔벨로프 정형화 장치 및 방법 |
CN103326210B (zh) * | 2013-06-19 | 2015-12-09 | 上海亚晴电子科技有限公司 | 一种可切换的多功能电缆 |
CN103455465A (zh) * | 2013-09-05 | 2013-12-18 | 锐思设计有限公司 | 通用串行总线装置 |
US9589265B2 (en) | 2013-09-11 | 2017-03-07 | Chien-Kang Yang | Mobile payment method |
TWM472261U (zh) * | 2013-09-11 | 2014-02-11 | Chien-Kang Yang | 連接設備及隨身支付裝置 |
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US9473082B2 (en) * | 2014-10-02 | 2016-10-18 | Entropic Communications, Llc | Dynamic bias control |
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US11216370B2 (en) * | 2018-02-20 | 2022-01-04 | Medtronic, Inc. | Methods and devices that utilize hardware to move blocks of operating parameter data from memory to a register set |
FR3080723B1 (fr) | 2018-04-25 | 2021-08-06 | Wupatec | Systeme et procede de linearisation en bande de base pour un amplificateur de puissance radiofrequence de classe g |
US11018632B2 (en) * | 2019-08-01 | 2021-05-25 | Iwave Technologies Co., Ltd. | Envelope tracking power amplifier module and envelope tracking method for the same |
CN114063883B (zh) * | 2020-07-31 | 2024-08-23 | 伊姆西Ip控股有限责任公司 | 存储数据方法、电子设备和计算机程序产品 |
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-
2006
- 2006-12-08 FI FI20065783A patent/FI20065783A0/sv not_active Application Discontinuation
-
2007
- 2007-01-25 US US11/657,542 patent/US7742748B2/en active Active
- 2007-03-02 US US11/681,722 patent/US7594059B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20080140902A1 (en) | 2008-06-12 |
US20080139140A1 (en) | 2008-06-12 |
US7742748B2 (en) | 2010-06-22 |
US7594059B2 (en) | 2009-09-22 |
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