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BE797939A - Modulateur de la phase de signaux modules en frequence - Google Patents

Modulateur de la phase de signaux modules en frequence

Info

Publication number
BE797939A
BE797939A BE129789A BE129789A BE797939A BE 797939 A BE797939 A BE 797939A BE 129789 A BE129789 A BE 129789A BE 129789 A BE129789 A BE 129789A BE 797939 A BE797939 A BE 797939A
Authority
BE
Belgium
Prior art keywords
phase modulator
signal phase
frequency modules
modulator frequency
modules
Prior art date
Application number
BE129789A
Other languages
English (en)
Inventor
D M Brady
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of BE797939A publication Critical patent/BE797939A/fr

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
    • H04L27/2014—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes in a piecewise linear manner during each symbol period, e.g. minimum shift keying, fast frequency shift keying

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Optical Communication System (AREA)
BE129789A 1972-04-12 1973-04-09 Modulateur de la phase de signaux modules en frequence BE797939A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24331972A 1972-04-12 1972-04-12

Publications (1)

Publication Number Publication Date
BE797939A true BE797939A (fr) 1973-07-31

Family

ID=22918265

Family Applications (1)

Application Number Title Priority Date Filing Date
BE129789A BE797939A (fr) 1972-04-12 1973-04-09 Modulateur de la phase de signaux modules en frequence

Country Status (6)

Country Link
US (1) US3750051A (fr)
JP (1) JPS4918255A (fr)
BE (1) BE797939A (fr)
DE (1) DE2317675A1 (fr)
FR (1) FR2179916A1 (fr)
IT (1) IT980147B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909750A (en) * 1974-06-10 1975-09-30 Bell Telephone Labor Inc Apparatus for encoding a binary signal into a frequency modulated coherent phase-shift keyed signal
US4290140A (en) * 1978-02-23 1981-09-15 Northrop Corporation Combined coherent frequency and phase shift keying modulation system
FR2469063B1 (fr) * 1979-10-31 1987-10-23 Brossard Pierre Modulations binaires a deplacement de phase et modulateurs

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3242262A (en) * 1961-09-21 1966-03-22 Ibm Method and apparatus for transmitting binary data
US3307152A (en) * 1963-05-31 1967-02-28 Gen Electric Data transmission system with control character insertions
US3601701A (en) * 1969-09-25 1971-08-24 Collins Radio Co Bi-phase keyed modulator-demodulator system
GB1324998A (en) * 1969-11-19 1973-07-25 Emi Ltd Phase modulators
GB1304188A (fr) * 1969-12-09 1973-01-24

Also Published As

Publication number Publication date
IT980147B (it) 1974-09-30
US3750051A (en) 1973-07-31
FR2179916A1 (fr) 1973-11-23
JPS4918255A (fr) 1974-02-18
DE2317675A1 (de) 1973-10-18

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