ATE488938T1 - Vorrichtung zur verbesserung der senderredundanz ,und verfahren dazu - Google Patents

Vorrichtung zur verbesserung der senderredundanz ,und verfahren dazu

Info

Publication number
ATE488938T1
ATE488938T1 AT03709026T AT03709026T ATE488938T1 AT E488938 T1 ATE488938 T1 AT E488938T1 AT 03709026 T AT03709026 T AT 03709026T AT 03709026 T AT03709026 T AT 03709026T AT E488938 T1 ATE488938 T1 AT E488938T1
Authority
AT
Austria
Prior art keywords
signals
output signals
peak
coupled
amplifiers
Prior art date
Application number
AT03709026T
Other languages
English (en)
Inventor
William C Greenwood
Ronald L Porco
Glen A Franson
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of ATE488938T1 publication Critical patent/ATE488938T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • 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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0294—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using vector summing of two or more constant amplitude phase-modulated signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
  • Error Detection And Correction (AREA)
  • Burglar Alarm Systems (AREA)
  • Pens And Brushes (AREA)
AT03709026T 2002-03-19 2003-02-07 Vorrichtung zur verbesserung der senderredundanz ,und verfahren dazu ATE488938T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/101,634 US7012970B2 (en) 2002-03-19 2002-03-19 Method and apparatus for reducing transmitter peak power requirements
PCT/US2003/003875 WO2003081863A2 (en) 2002-03-19 2003-02-07 Apparatus for improving transmitter redundancy, and method

Publications (1)

Publication Number Publication Date
ATE488938T1 true ATE488938T1 (de) 2010-12-15

Family

ID=28040046

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03709026T ATE488938T1 (de) 2002-03-19 2003-02-07 Vorrichtung zur verbesserung der senderredundanz ,und verfahren dazu

Country Status (9)

Country Link
US (1) US7012970B2 (de)
EP (1) EP1486044B1 (de)
JP (1) JP4377697B2 (de)
KR (1) KR100938771B1 (de)
CN (1) CN100417018C (de)
AT (1) ATE488938T1 (de)
AU (1) AU2003212982A1 (de)
DE (1) DE60334976D1 (de)
WO (1) WO2003081863A2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
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GB2402308B (en) * 2003-05-28 2006-01-04 Nokia Corp Par reduction for edge clipper
US7542517B2 (en) * 2004-02-02 2009-06-02 Ibiquity Digital Corporation Peak-to-average power reduction for FM OFDM transmission
US20050201180A1 (en) * 2004-03-05 2005-09-15 Qualcomm Incorporated System and methods for back-off and clipping control in wireless communication systems
US7296045B2 (en) * 2004-06-10 2007-11-13 Hasan Sehitoglu Matrix-valued methods and apparatus for signal processing
US7313416B1 (en) * 2004-09-01 2007-12-25 Rockwell Collins, Inc. Scalable power amplifier
US20060098761A1 (en) * 2004-11-10 2006-05-11 Motorola, Inc. Multi-mode transmitter
JP4567483B2 (ja) * 2005-02-16 2010-10-20 株式会社エヌ・ティ・ティ・ドコモ Ｏｆｄｍ送信装置
US7496145B2 (en) * 2005-07-28 2009-02-24 Motorola, Inc. Method and apparatus for reducing transmitter peak power requirements with orthogonal code noise shaping
US7805117B2 (en) * 2006-02-28 2010-09-28 Motorola, Inc. Method and apparatus for minimizing noise in a transmitter
US20070223621A1 (en) * 2006-03-21 2007-09-27 M/A-Com, Inc. Method and apparatus for signal power ramp-up in a communication transmission
DE102006028690A1 (de) * 2006-06-22 2008-01-03 Siemens Ag Verstärkereinrichtung für eine Modenantenne
US7889810B2 (en) * 2006-12-15 2011-02-15 Pine Valley Investments, Inc. Method and apparatus for a nonlinear feedback control system
US7864882B2 (en) * 2006-12-30 2011-01-04 Motorola Mobility, Inc. Method and apparatus for generating constant envelope modulation using a quadrature transmitter
US8009765B2 (en) * 2007-03-13 2011-08-30 Pine Valley Investments, Inc. Digital polar transmitter
US7869543B2 (en) * 2007-03-13 2011-01-11 Pine Valley Investments, Inc. System and method for synchronization, power control, calibration, and modulation in communication transmitters
US8081710B2 (en) * 2007-11-08 2011-12-20 Pine Valley Investments, Inc. System and method for corrected modulation with nonlinear power amplification
US7983359B2 (en) * 2008-02-07 2011-07-19 Pine Valley Investments, Inc. Synchronization techniques for polar transmitters
US8233852B2 (en) * 2008-04-04 2012-07-31 Pine Valley Investments, Inc. Calibration techniques for non-linear devices
GB2466708B (en) * 2008-12-31 2012-05-02 Motorola Mobility Inc Method and apparatus for antenna selection and power control in a multiple-input multiple-output wireless communication system
US8761834B2 (en) * 2008-12-31 2014-06-24 Motorola Mobility Llc Method and apparatus for antenna selection and power control in a multiple input multiple output wireless communication system
US9391684B1 (en) * 2015-09-11 2016-07-12 Raytheon Company Asymmetric power amplifier for digital beam forming
US10771145B2 (en) * 2016-03-11 2020-09-08 SEAKR Engineering, Inc. Power efficiency in beamforming RF systems

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5287387A (en) 1992-03-06 1994-02-15 Motorola, Inc. Low splatter peak-to-average signal reduction
US5638403A (en) 1995-04-28 1997-06-10 Motorola, Inc. Low-splatter peak-to-average signal reduction with interpolation
US5604462A (en) 1995-11-17 1997-02-18 Lucent Technologies Inc. Intermodulation distortion detection in a power shared amplifier network
GB2313525B (en) * 1996-05-24 2000-06-07 Motorola Ltd Filter for multicarrier communication system and method for peak power control therein
US5783969A (en) 1996-09-04 1998-07-21 Motorola, Inc. Method and system for preventing an amplifier overload condition in a hybrid matrix amplifier array
US5834972A (en) 1996-10-11 1998-11-10 Motorola, Inc. Method and system in a hybrid matrix amplifier for configuring a digital transformer
US5920808A (en) * 1996-12-12 1999-07-06 Glenayre Electronics, Inc. Method and apparatus for reducing key-up distortion by pre-heating transistors
US5933766A (en) 1996-12-16 1999-08-03 Ericsson Inc. Intermodulation compensation in multi-channel amplifiers
IL129417A0 (en) 1998-06-17 2000-02-17 Radio Frequency Systems Inc A power sharing amplifier system for a cellular communications system
US6381212B1 (en) * 1998-06-17 2002-04-30 Radio Frequency Systems, Inc. Power sharing amplifier system for amplifying multiple input signals with shared power amplifiers
US7065154B2 (en) * 2000-12-29 2006-06-20 Nokia Corporation Baseband predistortion method for multicarrier transmitters

Also Published As

Publication number Publication date
WO2003081863A2 (en) 2003-10-02
WO2003081863A3 (en) 2004-07-22
US7012970B2 (en) 2006-03-14
EP1486044B1 (de) 2010-11-17
US20030179832A1 (en) 2003-09-25
JP4377697B2 (ja) 2009-12-02
CN1643786A (zh) 2005-07-20
KR100938771B1 (ko) 2010-01-27
JP2006508556A (ja) 2006-03-09
CN100417018C (zh) 2008-09-03
KR20040091760A (ko) 2004-10-28
EP1486044A2 (de) 2004-12-15
AU2003212982A8 (en) 2003-10-08
AU2003212982A1 (en) 2003-10-08
DE60334976D1 (de) 2010-12-30

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties