AU2415988A - An fsk modulator - Google Patents

An fsk modulator

Info

Publication number
AU2415988A
AU2415988A AU24159/88A AU2415988A AU2415988A AU 2415988 A AU2415988 A AU 2415988A AU 24159/88 A AU24159/88 A AU 24159/88A AU 2415988 A AU2415988 A AU 2415988A AU 2415988 A AU2415988 A AU 2415988A
Authority
AU
Australia
Prior art keywords
fsk modulator
fsk
modulator
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.)
Withdrawn
Application number
AU24159/88A
Inventor
Daniel Simon Gregoire Hoefkens
Joannes Hendrik Palmyre Maria Spaenjers
Eric Jozef Julien Maria Vos
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.)
Alcatel Lucent NV
Original Assignee
Alcatel NV
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 Alcatel NV filed Critical Alcatel NV
Publication of AU2415988A publication Critical patent/AU2415988A/en
Withdrawn legal-status Critical Current

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
    • 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
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2335—Demodulator circuits; Receiver circuits using non-coherent demodulation using temporal properties of the received signal
    • H04L27/2337—Demodulator circuits; Receiver circuits using non-coherent demodulation using temporal properties of the received signal using digital techniques to measure the time between zero-crossings

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
AU24159/88A 1984-12-07 1988-10-24 An fsk modulator Withdrawn AU2415988A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2/60561A BE901232A (en) 1984-12-07 1984-12-07 RADIOCOMMUNICATION SYSTEM.
BE901232 1984-12-07

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
AU50339/85A Division AU581038B2 (en) 1984-12-07 1985-11-25 Radiocommunication system

Publications (1)

Publication Number Publication Date
AU2415988A true AU2415988A (en) 1989-01-27

Family

ID=3865721

Family Applications (2)

Application Number Title Priority Date Filing Date
AU50339/85A Ceased AU581038B2 (en) 1984-12-07 1985-11-25 Radiocommunication system
AU24159/88A Withdrawn AU2415988A (en) 1984-12-07 1988-10-24 An fsk modulator

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AU50339/85A Ceased AU581038B2 (en) 1984-12-07 1985-11-25 Radiocommunication system

Country Status (4)

Country Link
AU (2) AU581038B2 (en)
BE (1) BE901232A (en)
GB (1) GB2168878B (en)
NZ (1) NZ214299A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ243007A (en) * 1991-06-19 1995-02-24 Ericsson Telefon Ab L M Radio telephony: digital speech codec provided at regional stations for analog transmissions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4412339A (en) * 1981-09-24 1983-10-25 Advanced Micro Devices, Inc. Zero-crossing interpolator to reduce isochronous distortion in a digital FSK modem
DE3223345A1 (en) * 1982-06-23 1984-01-05 Philips Patentverwaltung Gmbh, 2000 Hamburg METHOD AND ARRANGEMENT FOR DEMODULATING A FREQUENCY-MODULATED INPUT SIGNAL
EP0146652B1 (en) * 1983-12-24 1987-09-02 Deutsche ITT Industries GmbH A digital demodulator for digitized frequency-modulated signals

Also Published As

Publication number Publication date
GB8528828D0 (en) 1985-12-24
BE901232A (en) 1985-06-07
GB2168878B (en) 1989-02-01
AU581038B2 (en) 1989-02-09
AU5033985A (en) 1986-06-12
GB2168878A (en) 1986-06-25
NZ214299A (en) 1988-09-29

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