DE69941617D1 - Pilottechnik mit Frequenzsprüngen für ein Steuersystem zur Reduzierung von Verzerrungen, die durch elektrische Schaltungen hervorgerufen werden - Google Patents

Pilottechnik mit Frequenzsprüngen für ein Steuersystem zur Reduzierung von Verzerrungen, die durch elektrische Schaltungen hervorgerufen werden

Info

Publication number
DE69941617D1
DE69941617D1 DE69941617T DE69941617T DE69941617D1 DE 69941617 D1 DE69941617 D1 DE 69941617D1 DE 69941617 T DE69941617 T DE 69941617T DE 69941617 T DE69941617 T DE 69941617T DE 69941617 D1 DE69941617 D1 DE 69941617D1
Authority
DE
Germany
Prior art keywords
control system
electrical circuitry
distortions caused
frequency jump
reducing distortions
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
DE69941617T
Other languages
English (en)
Inventor
Robert Evan Myer
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.)
Nokia of America Corp
Original Assignee
Lucent Technologies 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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Application granted granted Critical
Publication of DE69941617D1 publication Critical patent/DE69941617D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H03F1/3223—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Radio Relay Systems (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
DE69941617T 1998-09-29 1999-09-21 Pilottechnik mit Frequenzsprüngen für ein Steuersystem zur Reduzierung von Verzerrungen, die durch elektrische Schaltungen hervorgerufen werden Expired - Lifetime DE69941617D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/162,753 US6411644B1 (en) 1998-09-29 1998-09-29 Frequency hop pilot technique for a control system that reduces distortion produced by electrical circuits

Publications (1)

Publication Number Publication Date
DE69941617D1 true DE69941617D1 (de) 2009-12-17

Family

ID=22586999

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69941617T Expired - Lifetime DE69941617D1 (de) 1998-09-29 1999-09-21 Pilottechnik mit Frequenzsprüngen für ein Steuersystem zur Reduzierung von Verzerrungen, die durch elektrische Schaltungen hervorgerufen werden

Country Status (9)

Country Link
US (2) US6411644B1 (de)
EP (1) EP0991183B1 (de)
JP (1) JP2000151472A (de)
KR (1) KR100642531B1 (de)
CN (1) CN1120566C (de)
AU (1) AU750671B2 (de)
BR (1) BR9904250A (de)
CA (1) CA2279095C (de)
DE (1) DE69941617D1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6411644B1 (en) * 1998-09-29 2002-06-25 Lucent Technologies Inc. Frequency hop pilot technique for a control system that reduces distortion produced by electrical circuits
US6888844B2 (en) * 2000-04-07 2005-05-03 Broadcom Corporation Method for selecting an operating mode for a frame-based communications network
US8238404B2 (en) * 2001-10-23 2012-08-07 Koninklijke Philps Electronics N.V. Method to improve ATSC-VSB transceiver performance employing a time-frequency waveform processor
JP3910167B2 (ja) * 2003-09-25 2007-04-25 松下電器産業株式会社 増幅回路
US7092353B2 (en) * 2003-10-17 2006-08-15 Qualcomm Incorporated Carrier search methods and apparatus
US20100197257A1 (en) * 2009-02-04 2010-08-05 Qualcomm Incorporated Adjustable receive filter responsive to frequency spectrum information
DE102011012843A1 (de) * 2011-03-03 2012-09-06 Valeo Schalter Und Sensoren Gmbh Fahrerassistenzeinrichtung für ein Fahrzeug und Verfahren zum Betreiben eines Radargeräts

Family Cites Families (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017508A (en) * 1959-09-14 1962-01-16 Gen Electric Automatic gain control system
US3458815A (en) * 1966-05-17 1969-07-29 Bell Telephone Labor Inc Constant level signal transmission with band-edge pilot tone amplitude adjustment
US4554679A (en) * 1983-11-15 1985-11-19 Rca Corporation Noise reduction system for a single sideband multiplex signal
US5150663A (en) * 1986-10-23 1992-09-29 Yamaha Hatsudoki Kabushiki Kaisha Signal device for small boat
CA2046413C (en) * 1990-07-11 1994-01-04 Shoichi Narahashi Feed-forward amplifier
US5307022A (en) * 1991-04-15 1994-04-26 Motorola, Inc. High dynamic range modulation independent feed forward amplifier network
US5130663A (en) * 1991-04-15 1992-07-14 Motorola, Inc. Feed forward amplifier network with frequency swept pilot tone
US5603081A (en) * 1993-11-01 1997-02-11 Telefonaktiebolaget Lm Ericsson Method for communicating in a wireless communication system
CA2151824A1 (en) * 1992-12-15 1994-06-23 Peter Blakeborough Kenington Method and apparatus for signal processing using reference signals
US5485120A (en) * 1994-07-28 1996-01-16 Aval Communications Inc. Feed-forward power amplifier system with adaptive control and control method
US5521532A (en) * 1994-10-06 1996-05-28 Tektronix, Inc. Digital synthesizer controlled microwave frequency signal source
US5697055A (en) * 1994-10-16 1997-12-09 Qualcomm Incorporated Method and apparatus for handoff between different cellular communications systems
GB2296615A (en) * 1994-12-21 1996-07-03 Univ Bristol Distortion and noise reduction in wide band feedforward amplifier/mixer
US5565814A (en) * 1994-12-21 1996-10-15 Nec Corporation Feedforward amplifier using frequency changeable pilot signal
JP3360464B2 (ja) * 1995-02-13 2002-12-24 松下電器産業株式会社 フィードフォワード増幅器
GB2340613B (en) * 1995-06-12 2000-04-05 Samsung Electronics Co Ltd Digitizer controller
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
US5694036A (en) * 1995-08-07 1997-12-02 Lucent Technologies Inc. Direction sensor and distortion reduction control circuitry
US5796304A (en) * 1996-04-24 1998-08-18 Powerwave Technologies, Inc. Broadband amplifier with quadrature pilot signal
US5789976A (en) * 1996-06-17 1998-08-04 Corporation De L'ecole Polytechnique Digital adaptive control of feedforward amplifier using frequency domain cancellation
SE507698C2 (sv) * 1996-07-10 1998-07-06 Allgon Ab Förfarande och system för avstämning resonansmoduler
US5835848A (en) * 1996-12-30 1998-11-10 Lucent Technologies Inc. Range repeater for a transmission system
US6549242B1 (en) * 1997-04-04 2003-04-15 Harris Corporation Combining adjacent TV channels for transmission by a common antenna
US5874856A (en) * 1997-06-30 1999-02-23 Motorola, Inc. Feed forward amplifier
US5847603A (en) * 1997-07-31 1998-12-08 Lucent Technologies Inc. Automatic control system for reducing distortion produced by electrical circuits
US6094096A (en) * 1997-12-12 2000-07-25 Lucent Technologies Inc. Pilot detection for a control system that reduces distortion produced by electrical circuits
US5923214A (en) * 1997-12-17 1999-07-13 Motorola, Inc. Feedforward amplifier network with swept pilot tone for reducing distortion generated by a power amplifier
US5999048A (en) * 1998-01-13 1999-12-07 Lucent Technologies Inc. Method and apparatus for spread spectrum pilot extraction for RF amplifiers
US6166600A (en) * 1998-08-31 2000-12-26 Lucent Technologies Inc. Automatic gain and phase controlled feedforward amplifier without pilot signal
US5926067A (en) * 1998-09-29 1999-07-20 Lucent Technologies Inc. Sweep pilot technique for a control system that reduces distortion produced by electrical circuits
US6157254A (en) * 1998-09-29 2000-12-05 Lucent Technologies Inc. Double side band pilot technique for a control system that reduces distortion produced by electrical circuits
US6411644B1 (en) * 1998-09-29 2002-06-25 Lucent Technologies Inc. Frequency hop pilot technique for a control system that reduces distortion produced by electrical circuits
US6127889A (en) * 1998-11-18 2000-10-03 Lucent Technologies Inc. Nested feed forward distortion reduction system
US5986499A (en) * 1998-12-21 1999-11-16 Lucent Technologies Inc. Pilot signal detection system using band reject filter
US6359507B1 (en) * 1999-08-18 2002-03-19 Lucent Technologies Inc. Method and apparatus for an automatic predistortion system
US6392480B1 (en) * 1999-08-19 2002-05-21 Lucent Technologies Inc. Alternating gain and phase control system and method
US6259319B1 (en) * 1999-08-19 2001-07-10 Lucent Technologies Inc. Adaptive gain and/or phase adjustment control system and method
US6556076B1 (en) * 2001-12-17 2003-04-29 Powerwave Technologies, Inc. Feed forward amplifier with amplifier stage failure detection using pilot tones

Also Published As

Publication number Publication date
JP2000151472A (ja) 2000-05-30
CN1120566C (zh) 2003-09-03
CA2279095A1 (en) 2000-03-29
EP0991183A3 (de) 2001-10-31
EP0991183B1 (de) 2009-11-04
BR9904250A (pt) 2000-08-29
EP0991183A2 (de) 2000-04-05
CA2279095C (en) 2004-01-06
US20020150146A1 (en) 2002-10-17
KR100642531B1 (ko) 2006-11-13
AU750671B2 (en) 2002-07-25
CN1250247A (zh) 2000-04-12
AU4888099A (en) 2000-03-30
US7035312B2 (en) 2006-04-25
US6411644B1 (en) 2002-06-25
KR20000023532A (ko) 2000-04-25

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8364 No opposition during term of opposition