DE69309922D1 - Verfahren und Vorrichtung zum Verstärken, Modulieren und Demodulieren - Google Patents

Verfahren und Vorrichtung zum Verstärken, Modulieren und Demodulieren

Info

Publication number
DE69309922D1
DE69309922D1 DE69309922T DE69309922T DE69309922D1 DE 69309922 D1 DE69309922 D1 DE 69309922D1 DE 69309922 T DE69309922 T DE 69309922T DE 69309922 T DE69309922 T DE 69309922T DE 69309922 D1 DE69309922 D1 DE 69309922D1
Authority
DE
Germany
Prior art keywords
demodulating
modulating
amplifying
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
Application number
DE69309922T
Other languages
English (en)
Other versions
DE69309922T2 (de
Inventor
Andrew Roseacre Crowe Bateman
Kam Chan
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.)
BTG International Ltd
Original Assignee
British Technology Group Ltd
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 British Technology Group Ltd filed Critical British Technology Group Ltd
Application granted granted Critical
Publication of DE69309922D1 publication Critical patent/DE69309922D1/de
Publication of DE69309922T2 publication Critical patent/DE69309922T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H03F1/02—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
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/02—Details
    • H03C1/06—Modifications of modulator to reduce distortion, e.g. by feedback, and clearly applicable to more than one type of modulator
DE69309922T 1992-05-08 1993-05-10 Verfahren und Vorrichtung zum Verstärken, Modulieren und Demodulieren Expired - Fee Related DE69309922T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929209982A GB9209982D0 (en) 1992-05-08 1992-05-08 Method and apparatus for amplifying modulating and demodulating
PCT/GB1993/000954 WO1993023921A1 (en) 1992-05-08 1993-05-10 Method and apparatus for amplifying, modulating and demodulating

Publications (2)

Publication Number Publication Date
DE69309922D1 true DE69309922D1 (de) 1997-05-22
DE69309922T2 DE69309922T2 (de) 1997-07-24

Family

ID=10715222

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69309922T Expired - Fee Related DE69309922T2 (de) 1992-05-08 1993-05-10 Verfahren und Vorrichtung zum Verstärken, Modulieren und Demodulieren

Country Status (8)

Country Link
US (1) US5719527A (de)
EP (1) EP0639306B1 (de)
JP (1) JPH07509106A (de)
CA (1) CA2135304A1 (de)
DE (1) DE69309922T2 (de)
GB (2) GB9209982D0 (de)
SG (1) SG49311A1 (de)
WO (1) WO1993023921A1 (de)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9313981D0 (en) * 1993-07-06 1993-08-18 Plessey Semiconductors Ltd Wide-band microwave modulator arrangements
US5939951A (en) * 1995-05-25 1999-08-17 Btg International Limited Methods and apparatus for modulating, demodulating and amplifying
GB9510679D0 (en) * 1995-05-25 1995-07-19 British Tech Group Method and apparatus for modulating, demodulating and amplifying
DE19730086A1 (de) * 1997-07-14 1999-01-21 Bosch Gmbh Robert Sendeeinrichtung für Hochfrequenzsignale
SE512623C2 (sv) * 1997-11-03 2000-04-10 Ericsson Telefon Ab L M Förfarande och anordning i ett telekommunikationsproblem
US5886573A (en) * 1998-03-06 1999-03-23 Fujant, Inc. Amplification using amplitude reconstruction of amplitude and/or angle modulated carrier
US6889034B1 (en) 1998-04-02 2005-05-03 Ericsson Inc. Antenna coupling systems and methods for transmitters
US6285251B1 (en) 1998-04-02 2001-09-04 Ericsson Inc. Amplification systems and methods using fixed and modulated power supply voltages and buck-boost control
US5930128A (en) * 1998-04-02 1999-07-27 Ericsson Inc. Power waveform synthesis using bilateral devices
AU746940B2 (en) * 1998-04-02 2002-05-09 Ericsson Inc. Hybrid chireix/doherty amplifiers power waveform synthesis
US6133788A (en) * 1998-04-02 2000-10-17 Ericsson Inc. Hybrid Chireix/Doherty amplifiers and methods
US6311046B1 (en) 1998-04-02 2001-10-30 Ericsson Inc. Linear amplification systems and methods using more than two constant length vectors
US5990734A (en) * 1998-06-19 1999-11-23 Datum Telegraphic Inc. System and methods for stimulating and training a power amplifier during non-transmission events
TW448628B (en) 1998-09-22 2001-08-01 Texas Instruments Inc Quadrature output oscillator device, and method of providing ideal in-phase and quadrature phase signal components
US6201452B1 (en) 1998-12-10 2001-03-13 Ericsson Inc. Systems and methods for converting a stream of complex numbers into a modulated radio power signal
US6411655B1 (en) * 1998-12-18 2002-06-25 Ericsson Inc. Systems and methods for converting a stream of complex numbers into an amplitude and phase-modulated radio power signal
US6181199B1 (en) 1999-01-07 2001-01-30 Ericsson Inc. Power IQ modulation systems and methods
US6449465B1 (en) * 1999-12-20 2002-09-10 Motorola, Inc. Method and apparatus for linear amplification of a radio frequency signal
SE516847C2 (sv) * 2000-07-07 2002-03-12 Ericsson Telefon Ab L M Sammansatt förstärkare samt sändare som innefattar en sådan förstärkare
GB2375247A (en) * 2001-04-30 2002-11-06 Wireless Systems Int Ltd Signal processing apparatus incorporating clipping/attenuation and predistortion
US7058369B1 (en) 2001-11-21 2006-06-06 Pmc-Sierra Inc. Constant gain digital predistortion controller for linearization of non-linear amplifiers
US7327803B2 (en) 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
US7355470B2 (en) * 2006-04-24 2008-04-08 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
US20130078934A1 (en) 2011-04-08 2013-03-28 Gregory Rawlins Systems and Methods of RF Power Transmission, Modulation, and Amplification
US7937106B2 (en) 2006-04-24 2011-05-03 ParkerVision, Inc, Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same
US8031804B2 (en) 2006-04-24 2011-10-04 Parkervision, Inc. Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion
US8315336B2 (en) * 2007-05-18 2012-11-20 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including a switching stage embodiment
US7620129B2 (en) * 2007-01-16 2009-11-17 Parkervision, Inc. RF power transmission, modulation, and amplification, including embodiments for generating vector modulation control signals
WO2008090598A1 (ja) * 2007-01-22 2008-07-31 Panasonic Corporation 増幅装置
WO2008152930A1 (ja) * 2007-06-11 2008-12-18 Advantest Corporation 測定装置およびプログラム
WO2008156800A1 (en) 2007-06-19 2008-12-24 Parkervision, Inc. Combiner-less multiple input single output (miso) amplification with blended control
WO2009005768A1 (en) 2007-06-28 2009-01-08 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
WO2009145887A1 (en) * 2008-05-27 2009-12-03 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
EP2715867A4 (de) 2011-06-02 2014-12-17 Parkervision Inc Antennensteuerung
EP3047348A4 (de) 2013-09-17 2016-09-07 Parkervision Inc Verfahren, vorrichtung und system für die darstellung einer datenträgerzeitfunktion
US10044383B2 (en) 2016-12-30 2018-08-07 Silicon Laboratories Inc. Sinewave generation from multi-phase signals
US9979404B1 (en) * 2016-12-30 2018-05-22 Silicon Laboratories Inc. Multi-phase amplitude and phase modulation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3748590A (en) * 1972-04-14 1973-07-24 Singer Co Sine cosine frequency tracker
US3953805A (en) * 1974-11-07 1976-04-27 Texas Instruments Incorporated DC component suppression in zero CF IF systems
NL8001903A (nl) * 1980-04-01 1981-11-02 Philips Nv Inrichting voor het versterken van een gemoduleerd draaggolfsignaal.
JP2572986B2 (ja) * 1987-06-03 1997-01-16 三洋電機株式会社 復調回路
US5105168A (en) * 1991-08-28 1992-04-14 Hewlett-Packard Company Vector locked loop

Also Published As

Publication number Publication date
DE69309922T2 (de) 1997-07-24
EP0639306B1 (de) 1997-04-16
SG49311A1 (en) 1998-05-18
GB9309571D0 (en) 1993-06-23
GB9209982D0 (en) 1992-06-24
JPH07509106A (ja) 1995-10-05
WO1993023921A1 (en) 1993-11-25
CA2135304A1 (en) 1993-11-09
US5719527A (en) 1998-02-17
EP0639306A1 (de) 1995-02-22
GB2267402A (en) 1993-12-01

Similar Documents

Publication Publication Date Title
DE69309922T2 (de) Verfahren und Vorrichtung zum Verstärken, Modulieren und Demodulieren
DE69516592T2 (de) Verfahren und vorrichtung zum bewegen von behinderten
DE578578T1 (de) Verfahren und Vorrichtung zum Mischen von Gasen.
DE69533028D1 (de) Vorrichtung und verfahren zum multiplexen von signalen
DE69109822T2 (de) Verfahren und Einrichtung zur Modulationserkennung.
DE58907328D1 (de) Verfahren und Vorrichtung zum Auftragen von Medien.
DE416894T1 (de) Verfahren und vorrichtung zum verschluesseln und entschluesseln von zeitgebietssignalen.
DE68916616T2 (de) Verfahren und Vorrichtung zum Gruppenlochen.
DE59203570D1 (de) Verfahren und vorrichtung zum stapeln.
DE68907508D1 (de) Verfahren und vorrichtung zum sterilisieren von deckeln.
DE69100654D1 (de) Verfahren und Vorrichtung zum Schneiden.
DE69113434T2 (de) Verfahren und vorrichtung zum funkenerosionsbearbeiten.
DE69019832T2 (de) Verfahren und vorrichtung zum stechen von ohrlöchern.
DE58901406D1 (de) Verfahren und vorrichtung zum spenden von etiketten.
DE69106344T2 (de) Verfahren und vorrichtung zum palettisieren.
DE3771416D1 (de) Verfahren und vorrichtung zum mikroloeten.
DE69101545D1 (de) Verfahren und vorrichtung zum positionieren von bestandteilen.
DE69103033D1 (de) Verfahren und Vorrichtung zum Schneiden von Rohren.
DE59007450D1 (de) Verfahren und vorrichtung zum abfragen von steuergeräte-daten.
DE69201709T2 (de) Verfahren und Vorrichtung zum Sichtbarmachen von Gasen.
DE69504969T2 (de) Verfahren und vorrichtung zum tranferieren von modulen
DE68908330T2 (de) Vorrichtung und verfahren zum wiedereinfärben.
DE69013059D1 (de) Verfahren und Vorrichtung zum zeitweiligen Abdichten von Rohrleitungen.
DE59705515D1 (de) Verfahren und Vorrichtung zum Öffnen von flexiblen, flächigen Erzeugnissen
DE69506979D1 (de) Verfahren und Vorrichtung zum Bewegen von Blättern

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: BTG INTERNATIONAL LTD., LONDON, GB

8339 Ceased/non-payment of the annual fee