GB1575629A - Generator for generating sinusoidal electrical signals which are phase or frequency modulated by a digital method - Google Patents

Generator for generating sinusoidal electrical signals which are phase or frequency modulated by a digital method Download PDF

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Publication number
GB1575629A
GB1575629A GB701677A GB701677A GB1575629A GB 1575629 A GB1575629 A GB 1575629A GB 701677 A GB701677 A GB 701677A GB 701677 A GB701677 A GB 701677A GB 1575629 A GB1575629 A GB 1575629A
Authority
GB
United Kingdom
Prior art keywords
frequency
counter
phase
generator according
data
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
Application number
GB701677A
Other languages
English (en)
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of GB1575629A publication Critical patent/GB1575629A/en
Expired legal-status Critical Current

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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
    • H04L27/2021—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change per symbol period is not constrained
    • H04L27/2025—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change per symbol period is not constrained in which the phase changes in a piecewise linear manner within each symbol period
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits
    • H04L27/122—Modulator circuits; Transmitter circuits using digital generation of carrier signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB701677A 1976-02-20 1977-02-18 Generator for generating sinusoidal electrical signals which are phase or frequency modulated by a digital method Expired GB1575629A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7604842A FR2341983A1 (fr) 1976-02-20 1976-02-20 Generateur de signal electrique sinusoidal module en frequence ou en phase par methode numerique

Publications (1)

Publication Number Publication Date
GB1575629A true GB1575629A (en) 1980-09-24

Family

ID=9169432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB701677A Expired GB1575629A (en) 1976-02-20 1977-02-18 Generator for generating sinusoidal electrical signals which are phase or frequency modulated by a digital method

Country Status (4)

Country Link
DE (1) DE2707116A1 (enExample)
FR (1) FR2341983A1 (enExample)
GB (1) GB1575629A (enExample)
IT (1) IT1077976B (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116795A (en) * 1982-03-02 1983-09-28 Racal Mesl Microwave Electrical signal generation
GB2160728A (en) * 1984-06-21 1985-12-24 Motorola Israel Ltd Waveform synthesizer
FR2864375A1 (fr) * 2003-12-23 2005-06-24 Valeo Electronique Sys Liaison Multiplieur d'un signal electrique par un signal d'oscillateur local et procede mis en oeuvre par le multiplieur

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4620294A (en) * 1983-09-09 1986-10-28 Cts Corporation Digital signal processor modem
DE3419886A1 (de) * 1984-05-28 1985-11-28 Siemens AG, 1000 Berlin und 8000 München Sendeschaltung in einer datenuebertragungseinrichtung zur tonfrequenten datenuebertragung
DE3525125A1 (de) * 1985-07-13 1987-01-15 Bbc Brown Boveri & Cie Verfahren und einrichtung zur rbertragung binaerer datensignale durch frequenzumtastung
US5140540A (en) * 1990-07-30 1992-08-18 Triquint Semiconductor, Inc. Delay equalization emulation for high speed phase modulated direct digital synthesis

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116795A (en) * 1982-03-02 1983-09-28 Racal Mesl Microwave Electrical signal generation
GB2160728A (en) * 1984-06-21 1985-12-24 Motorola Israel Ltd Waveform synthesizer
FR2864375A1 (fr) * 2003-12-23 2005-06-24 Valeo Electronique Sys Liaison Multiplieur d'un signal electrique par un signal d'oscillateur local et procede mis en oeuvre par le multiplieur
WO2005064785A1 (fr) * 2003-12-23 2005-07-14 Valeo Electronique & Systemes De Liaison Multiplieur d'un signal electrique par un signal d'oscillateur local et procede mis en oeuvre par le multiplieur

Also Published As

Publication number Publication date
FR2341983B1 (enExample) 1979-07-20
IT1077976B (it) 1985-05-08
DE2707116A1 (de) 1977-11-10
FR2341983A1 (fr) 1977-09-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee