HK1004587A1 - Method and apparatus for digital modulation using in-phase and quadrature components - Google Patents

Method and apparatus for digital modulation using in-phase and quadrature components

Info

Publication number
HK1004587A1
HK1004587A1 HK98103693A HK98103693A HK1004587A1 HK 1004587 A1 HK1004587 A1 HK 1004587A1 HK 98103693 A HK98103693 A HK 98103693A HK 98103693 A HK98103693 A HK 98103693A HK 1004587 A1 HK1004587 A1 HK 1004587A1
Authority
HK
Hong Kong
Prior art keywords
phase
digital modulation
quadrature components
quadrature
frequency
Prior art date
Application number
HK98103693A
Other languages
English (en)
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 HK1004587A1 publication Critical patent/HK1004587A1/xx

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)
HK98103693A 1989-11-02 1998-04-30 Method and apparatus for digital modulation using in-phase and quadrature components HK1004587A1 (en)

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 (1)

Publication Number Publication Date
HK1004587A1 true HK1004587A1 (en) 1998-11-27

Family

ID=9387021

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98103693A HK1004587A1 (en) 1989-11-02 1998-04-30 Method and apparatus for digital modulation using in-phase and quadrature components

Country Status (10)

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

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
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
PT95768A (pt) 1992-06-30
NO904749D0 (no) 1990-11-01
ES2060986T3 (es) 1994-12-01

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20031030

PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)