DE60321344D1 - Blindlöschung von Kreuzmodulation durch Addition eines modulierten Signals - Google Patents

Blindlöschung von Kreuzmodulation durch Addition eines modulierten Signals

Info

Publication number
DE60321344D1
DE60321344D1 DE60321344T DE60321344T DE60321344D1 DE 60321344 D1 DE60321344 D1 DE 60321344D1 DE 60321344 T DE60321344 T DE 60321344T DE 60321344 T DE60321344 T DE 60321344T DE 60321344 D1 DE60321344 D1 DE 60321344D1
Authority
DE
Germany
Prior art keywords
signal
bleed
receive path
amplitude modulated
jammer
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 - Lifetime
Application number
DE60321344T
Other languages
English (en)
Inventor
Gary John Ballantyne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of DE60321344D1 publication Critical patent/DE60321344D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/06Receivers
    • H04B1/10Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/109Means associated with receiver for limiting or suppressing noise or interference by improving strong signal performance of the receiver when strong unwanted signals are present at the receiver input
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241Modifications of amplifiers to reduce non-linear distortion using predistortion circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)
  • Amplifiers (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Optical Communication System (AREA)
DE60321344T 2002-06-28 2003-06-28 Blindlöschung von Kreuzmodulation durch Addition eines modulierten Signals Expired - Lifetime DE60321344D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/187,087 US6954627B2 (en) 2002-06-28 2002-06-28 Blind modulation cancellation by addition of modulated signal
PCT/US2003/020385 WO2004004144A1 (en) 2002-06-28 2003-06-28 Blind cancellation of cross-modulation by addition of modulated signal

Publications (1)

Publication Number Publication Date
DE60321344D1 true DE60321344D1 (de) 2008-07-10

Family

ID=29779988

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60321344T Expired - Lifetime DE60321344D1 (de) 2002-06-28 2003-06-28 Blindlöschung von Kreuzmodulation durch Addition eines modulierten Signals

Country Status (11)

Country Link
US (1) US6954627B2 (de)
EP (1) EP1518329B1 (de)
JP (1) JP4444824B2 (de)
CN (1) CN100380823C (de)
AT (1) ATE397324T1 (de)
AU (1) AU2003256327A1 (de)
BR (1) BR0312221A (de)
DE (1) DE60321344D1 (de)
HK (1) HK1082128A1 (de)
TW (1) TWI322580B (de)
WO (1) WO2004004144A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8170487B2 (en) * 2006-02-03 2012-05-01 Qualcomm, Incorporated Baseband transmitter self-jamming and intermodulation cancellation device
US8098779B2 (en) * 2006-08-08 2012-01-17 Qualcomm Incorporated Interference detection and mitigation
JP5641951B2 (ja) * 2010-09-13 2014-12-17 ルネサスエレクトロニクス株式会社 無線通信システム、無線通信方法、無線機器およびデータ送信機
US20130155911A1 (en) * 2011-12-16 2013-06-20 Broadcom Corporation Radio Transceiver With IM2 Mitigation
WO2016007056A1 (en) * 2014-07-10 2016-01-14 Telefonaktiebolaget L M Ericsson (Publ) Cancelling intermodulation interference
JP2018157248A (ja) * 2017-03-15 2018-10-04 株式会社村田製作所 フロントエンドモジュール

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696429A (en) * 1971-05-24 1972-10-03 Cutler Hammer Inc Signal cancellation system
US4475243A (en) * 1982-12-21 1984-10-02 Motorola, Inc. Isolation method and apparatus for a same frequency repeater
US4710723A (en) * 1986-04-04 1987-12-01 Harris Corporation Receiver having a modulation amplifier for enhancing reception of a desired signal in the presence of interference
US5691978A (en) * 1995-04-07 1997-11-25 Signal Science, Inc. Self-cancelling full-duplex RF communication system
US5710521A (en) * 1995-12-29 1998-01-20 Qualcomm Incorporated Out-of-band compensation for non-linear device
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
US6137888A (en) * 1997-06-02 2000-10-24 Nortel Networks Corporation EM interference canceller in an audio amplifier
US6311045B1 (en) * 1997-07-28 2001-10-30 Roke Manor Research Limited Apparatus for signal isolation in a radio transmitter-receiver
AU3758099A (en) * 1998-04-24 1999-11-16 Qualcomm Incorporated Circuit for reduction of cross modulation and increased battery life in a battery powered transceiver
US6561809B1 (en) * 2000-07-17 2003-05-13 Battlepaint, Inc. Virtual battlefield simulator system and method
US6567649B2 (en) * 2000-08-22 2003-05-20 Novatel Wireless, Inc. Method and apparatus for transmitter noise cancellation in an RF communications system
US6539204B1 (en) * 2000-09-29 2003-03-25 Mobilian Corporation Analog active cancellation of a wireless coupled transmit signal

Also Published As

Publication number Publication date
WO2004004144A1 (en) 2004-01-08
TW200412039A (en) 2004-07-01
AU2003256327A1 (en) 2004-01-19
EP1518329A1 (de) 2005-03-30
EP1518329B1 (de) 2008-05-28
TWI322580B (en) 2010-03-21
CN1666424A (zh) 2005-09-07
US6954627B2 (en) 2005-10-11
CN100380823C (zh) 2008-04-09
BR0312221A (pt) 2005-04-12
ATE397324T1 (de) 2008-06-15
JP2005531991A (ja) 2005-10-20
US20040002300A1 (en) 2004-01-01
JP4444824B2 (ja) 2010-03-31
HK1082128A1 (en) 2006-05-26

Similar Documents

Publication Publication Date Title
US5861777A (en) Method and apparatus for compensation of phase distortion in power amplifiers
US7620377B2 (en) Bandwidth enhancement for envelope elimination and restoration transmission systems
US5886572A (en) Method and apparatus for reducing distortion in a power amplifier
US5838210A (en) Method and apparatus for generating a modulated signal
DE60332332D1 (de) Verfahren und vorrichtung mit basisbandtransformation zur verbesserung von senderleistung
SE0001260D0 (sv) Bredbandig effektförstärkare med hög verkningsgrad
US6545533B2 (en) Class D audio speaker amplifier circuit with pseudo noise modulation
SE9602584L (sv) Anordning och förfarande vid radiosändare för styrning av effektförstärkare
RU94044345A (ru) Модулятор с квадратурой с адаптивным подавлением потерь несущей частоты
HK1082128A1 (en) Blind cancellation of cross-modulation by additionof modulated signal
TW200507553A (en) Quadra-polar modulator
US5831475A (en) Method and apparatus for delay matching in a power amplifier
ATE415764T1 (de) Gesteuerte modulationsverzerrung
DE60005163D1 (de) Nichtlinearer generator zum erzeugen von verzerrungen
US20080299919A1 (en) Signal enhancement in rf transmitters employing non-linear filtering
US8300728B1 (en) Complex envelope elimination and restoration transmitter
KR20070009229A (ko) 델타-시그마 변조된 신호를 사용하는 전력 증폭기의 입력정합 장치 및 방법
Bejan et al. A joint linearization/companding approach for improving a CO-OFDM transmitter
ATE460770T1 (de) Blind-linearisierung unter anwendung von kreuz- modulation
TW200704047A (en) Radio transmission apparatus with variable frequency bandwidth of transmission signal or variable method of modulating transmission signal
HRP20090384T1 (en) Method for controlling an eer power amplifier for digital transmission
JP3033708B2 (ja) ピーククリッピング回路および該ピーククリッピング回路を有する直交変調送信機
US6100756A (en) Method and apparatus for high efficiency power amplification
ATE393547T1 (de) Verfahren zum kombinieren von verschiedenen signalen und feststation
EP2433360B1 (de) Sender mit quantisierungsrauschenkompensation

Legal Events

Date Code Title Description
8364 No opposition during term of opposition