PT95768A - Processo e dispositivo de modulacao digital com componentes em fase e em quadratura - Google Patents

Processo e dispositivo de modulacao digital com componentes em fase e em quadratura

Info

Publication number
PT95768A
PT95768A PT95768A PT9576890A PT95768A PT 95768 A PT95768 A PT 95768A PT 95768 A PT95768 A PT 95768A PT 9576890 A PT9576890 A PT 9576890A PT 95768 A PT95768 A PT 95768A
Authority
PT
Portugal
Prior art keywords
phase
modulation device
digital modulation
quadrature components
quadrature
Prior art date
Application number
PT95768A
Other languages
English (en)
Other versions
PT95768B (pt
Inventor
Michel Alard
Jean-Louis Dornstetter
Original Assignee
Matra Communication
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 Matra Communication filed Critical Matra Communication
Publication of PT95768A publication Critical patent/PT95768A/pt
Publication of PT95768B publication Critical patent/PT95768B/pt

Links

Classifications

    • 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
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Cephalosporin Compounds (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Closed-Circuit Television Systems (AREA)
PT95768A 1989-11-02 1990-10-31 Processo e dispositivo de modulacao digital com componentes em fase e em quadratura PT95768B (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8914366A FR2653959B1 (fr) 1989-11-02 1989-11-02 Procede et dispositif de modulation numerique a composantes en phase et en quadrature.

Publications (2)

Publication Number Publication Date
PT95768A true PT95768A (pt) 1992-06-30
PT95768B PT95768B (pt) 1998-07-31

Family

ID=9387021

Family Applications (1)

Application Number Title Priority Date Filing Date
PT95768A PT95768B (pt) 1989-11-02 1990-10-31 Processo e dispositivo de modulacao digital com componentes em fase e em quadratura

Country Status (10)

Country Link
EP (1) EP0426560B1 (pt)
AT (1) ATE110509T1 (pt)
DE (1) DE69011811T2 (pt)
DK (1) DK0426560T3 (pt)
ES (1) ES2060986T3 (pt)
FI (1) FI905403A0 (pt)
FR (1) FR2653959B1 (pt)
HK (1) HK1004587A1 (pt)
NO (1) NO303710B1 (pt)
PT (1) PT95768B (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5530722A (en) * 1992-10-27 1996-06-25 Ericsson Ge Mobile Communications Inc. Quadrature modulator with integrated distributed RC filters
US5867537A (en) * 1992-10-27 1999-02-02 Ericsson Inc. Balanced tranversal I,Q filters for quadrature modulators
SE507373C2 (sv) * 1996-09-06 1998-05-18 Ericsson Telefon Ab L M Anordning och metod för pulsformning och effektförstärkning
GB2335122A (en) * 1998-03-05 1999-09-08 Motorola Gmbh Transmitter adapted to reduce adjacent channel interference
KR100703250B1 (ko) * 1998-12-22 2007-04-03 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 전송 회로 및 무선 전화 장치
EP1102409B1 (en) * 1999-11-18 2006-10-04 Telefonaktiebolaget LM Ericsson (publ) Method and apparatus for generating a RF signal
EP1161044B1 (en) * 2000-05-30 2006-11-15 Matsushita Electric Industrial Co., Ltd. Quadrature modulator
US20060115005A1 (en) * 2004-11-26 2006-06-01 Technoconcepts, Inc. Direct conversion delta-sigma transmitter
US7236112B2 (en) 2005-01-21 2007-06-26 Technoconcepts, Inc. Self-tuning output digital filter for direct conversion delta-sigma transmitter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1570840A (en) * 1978-05-23 1980-07-09 Standard Telephones Cables Ltd Generation of modulated carrier waves for phase or phase- amplitude shift keying

Also Published As

Publication number Publication date
FR2653959B1 (fr) 1994-05-20
HK1004587A1 (en) 1998-11-27
DK0426560T3 (da) 1994-09-19
FR2653959A1 (fr) 1991-05-03
DE69011811T2 (de) 1994-12-15
NO904749L (no) 1991-05-03
DE69011811D1 (de) 1994-09-29
PT95768B (pt) 1998-07-31
NO303710B1 (no) 1998-08-17
ATE110509T1 (de) 1994-09-15
FI905403A0 (fi) 1990-11-01
EP0426560A1 (fr) 1991-05-08
EP0426560B1 (fr) 1994-08-24
NO904749D0 (no) 1990-11-01
ES2060986T3 (es) 1994-12-01

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Legal Events

Date Code Title Description
BB1A Laying open of patent application

Effective date: 19920224

FG3A Patent granted, date of granting

Effective date: 19980413

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20001031