FR2669165B1 - Appareil et procede permettant de faire varier un signal dans l'emetteur d'un emetteur-recepteur. - Google Patents

Appareil et procede permettant de faire varier un signal dans l'emetteur d'un emetteur-recepteur.

Info

Publication number
FR2669165B1
FR2669165B1 FR9113151A FR9113151A FR2669165B1 FR 2669165 B1 FR2669165 B1 FR 2669165B1 FR 9113151 A FR9113151 A FR 9113151A FR 9113151 A FR9113151 A FR 9113151A FR 2669165 B1 FR2669165 B1 FR 2669165B1
Authority
FR
France
Prior art keywords
transceiver
transmitter
varying
signal
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
FR9113151A
Other languages
English (en)
Other versions
FR2669165A1 (fr
Inventor
Stephen V Cahill
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.)
Motorola Solutions Inc
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
Publication of FR2669165A1 publication Critical patent/FR2669165A1/fr
Application granted granted Critical
Publication of FR2669165B1 publication Critical patent/FR2669165B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
    • H03C3/406—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated using a feedback loop containing mixers or demodulators
    • 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
    • H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • H04L27/2071—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the carrier phase, e.g. systems with differential coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
FR9113151A 1990-10-24 1991-10-24 Appareil et procede permettant de faire varier un signal dans l'emetteur d'un emetteur-recepteur. Expired - Fee Related FR2669165B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60254090A 1990-10-24 1990-10-24

Publications (2)

Publication Number Publication Date
FR2669165A1 FR2669165A1 (fr) 1992-05-15
FR2669165B1 true FR2669165B1 (fr) 1995-07-21

Family

ID=24411752

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9113151A Expired - Fee Related FR2669165B1 (fr) 1990-10-24 1991-10-24 Appareil et procede permettant de faire varier un signal dans l'emetteur d'un emetteur-recepteur.

Country Status (6)

Country Link
JP (1) JPH05503408A (fr)
CA (1) CA2069476C (fr)
FR (1) FR2669165B1 (fr)
GB (1) GB2254973B (fr)
MX (1) MX9101738A (fr)
WO (1) WO1992008297A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272133B (en) * 1992-11-02 1996-06-12 Motorola Inc Radio system
US5710981A (en) * 1995-05-23 1998-01-20 Ericsson Inc. Portable radio power control device and method using incrementally degraded received signals
JP3537988B2 (ja) * 1997-03-25 2004-06-14 松下電器産業株式会社 無線送信装置
US6112059A (en) * 1997-11-12 2000-08-29 Motorola, Inc. Off-channel leakage power monitor apparatus and method
US6141541A (en) * 1997-12-31 2000-10-31 Motorola, Inc. Method, device, phone and base station for providing envelope-following for variable envelope radio frequency signals
GB2345599A (en) * 1998-12-23 2000-07-12 Nokia Mobile Phones Ltd A baseband predistorter for a transmitter with combined downconversion and demodulation in the feedback path
AU3394201A (en) * 2000-02-23 2001-09-03 Scientific Generics Limited Transmitter and receiver circuit
GB2369735B (en) * 2000-12-02 2004-07-14 Roke Manor Research Method of linearising a signal
GB2379109B (en) * 2001-08-21 2005-07-13 Ubinetics Ltd Linearised radio transmitter
EP1499015A1 (fr) * 2003-07-17 2005-01-19 Siemens Aktiengesellschaft Circuit et procédé pour la linéarisation de la caractéristique d'un amplificateur de puissance GSM
JP4479931B2 (ja) * 2008-03-11 2010-06-09 日本電気株式会社 通信装置、歪み補償回路、および歪み補償方法
US8615054B2 (en) 2010-09-24 2013-12-24 Intel Corporation Close-loop power amplifier pre-distortion correction
EP3396398B1 (fr) * 2017-04-27 2020-07-08 Rohde & Schwarz GmbH & Co. KG Procédé de correction de signal, système permettant de corriger un signal mesuré ainsi qu'un oscilloscope

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2068850A5 (fr) * 1969-10-03 1971-09-03 Cit Alcatel
JPS6110327Y2 (fr) * 1980-01-10 1986-04-03
JPS6041821A (ja) * 1983-08-18 1985-03-05 Nec Corp 送信出力電力制御装置
DE58907579D1 (de) * 1989-01-18 1994-06-01 Siemens Ag Digitaler Verzerrer.

Also Published As

Publication number Publication date
WO1992008297A1 (fr) 1992-05-14
GB2254973B (en) 1995-02-22
CA2069476C (fr) 1996-12-17
CA2069476A1 (fr) 1992-04-25
GB9213179D0 (en) 1992-08-12
JPH05503408A (ja) 1993-06-03
FR2669165A1 (fr) 1992-05-15
GB2254973A (en) 1992-10-21
MX9101738A (es) 1992-06-05

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Legal Events

Date Code Title Description
ST Notification of lapse