DK243282A - Fremgangsmaade og kredsloeb til demodulation af fsk-signaler - Google Patents

Fremgangsmaade og kredsloeb til demodulation af fsk-signaler Download PDF

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Publication number
DK243282A
DK243282A DK243282A DK243282A DK243282A DK 243282 A DK243282 A DK 243282A DK 243282 A DK243282 A DK 243282A DK 243282 A DK243282 A DK 243282A DK 243282 A DK243282 A DK 243282A
Authority
DK
Denmark
Prior art keywords
address
memory
fsk
generating logic
fsk signals
Prior art date
Application number
DK243282A
Other languages
Danish (da)
English (en)
Inventor
R Fischer
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of DK243282A publication Critical patent/DK243282A/da

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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
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/156—Demodulator circuits; Receiver circuits with demodulation using temporal properties of the received signal, e.g. detecting pulse width
    • H04L27/1563—Demodulator circuits; Receiver circuits with demodulation using temporal properties of the received signal, e.g. detecting pulse width using transition or level detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Selective Calling Equipment (AREA)
DK243282A 1981-05-29 1982-05-28 Fremgangsmaade og kredsloeb til demodulation af fsk-signaler DK243282A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813121444 DE3121444A1 (de) 1981-05-29 1981-05-29 Verfahren und anordnung zum demodulieren von fsk-signalen

Publications (1)

Publication Number Publication Date
DK243282A true DK243282A (da) 1982-11-30

Family

ID=6133532

Family Applications (1)

Application Number Title Priority Date Filing Date
DK243282A DK243282A (da) 1981-05-29 1982-05-28 Fremgangsmaade og kredsloeb til demodulation af fsk-signaler

Country Status (6)

Country Link
US (1) US4533874A (fr)
EP (1) EP0066229B1 (fr)
AT (1) ATE10691T1 (fr)
AU (1) AU555132B2 (fr)
DE (2) DE3121444A1 (fr)
DK (1) DK243282A (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3121444A1 (de) * 1981-05-29 1982-12-16 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zum demodulieren von fsk-signalen
US4759080A (en) * 1983-11-16 1988-07-19 Nec Corporation Coherent optical communication system with FSK heterodyne or homodyne detection and little influence by distortion of a modulated optical signal
US4554508A (en) * 1983-12-07 1985-11-19 American Microsystems, Incorporated Carrier detection circuit
EP0146652B1 (fr) * 1983-12-24 1987-09-02 Deutsche ITT Industries GmbH Circuit numérique de démodulation des signaux modulés en fréquence numérisés
US4817025A (en) * 1984-02-03 1989-03-28 Sharp Kabushiki Kaisha Digital filter
DE3419931A1 (de) * 1984-05-28 1985-11-28 Siemens AG, 1000 Berlin und 8000 München Empfangsschaltung in einer datenuebertragungseinrichtung zur tonfrequenten datenuebertragung
DE3419948A1 (de) * 1984-05-28 1985-11-28 Siemens AG, 1000 Berlin und 8000 München Empfangsschaltung in einer datenuebertragungseinrichtng zur tonfrequenten datenuebertragung
DE3427349A1 (de) * 1984-07-25 1986-01-30 ANT Nachrichtentechnik GmbH, 7150 Backnang Lineares nichtrekursives filter
JPS6165616A (ja) * 1984-09-07 1986-04-04 Nippon Hoso Kyokai <Nhk> 対称形ｆｉｒディジタルフィルタ
US6347346B1 (en) * 1999-06-30 2002-02-12 Chameleon Systems, Inc. Local memory unit system with global access for use on reconfigurable chips
EP1334411B1 (fr) 2000-11-16 2014-09-10 Invensys Systems, Inc. Appareil, systeme de commande et procede de communication inductive a travers une barriere d'isolement
US6606044B2 (en) * 2002-01-02 2003-08-12 Motorola, Inc. Method and apparatus for generating a pulse width modulated signal
US7881409B2 (en) * 2004-01-22 2011-02-01 The Regents Of The University Of Michigan Demodulator, chip and method for digitally demodulating an FSK signal
DE102005041455A1 (de) * 2005-08-31 2007-03-15 Abb Patent Gmbh Automatisierungstechnische Einrichtung
DE102005043481A1 (de) * 2005-09-13 2007-03-15 Abb Patent Gmbh Automatisierungstechnische Einrichtung
DE102005043485A1 (de) 2005-09-13 2007-03-15 Abb Patent Gmbh Automatisierungstechnische Einrichtung
DE102005043482A1 (de) * 2005-09-13 2007-03-15 Abb Patent Gmbh Automatisierungstechnische Einrichtung
DE102005043483A1 (de) * 2005-09-13 2007-03-15 Abb Patent Gmbh Automatisierungstechnische Einrichtung
US8395878B2 (en) 2006-04-28 2013-03-12 Orica Explosives Technology Pty Ltd Methods of controlling components of blasting apparatuses, blasting apparatuses, and components thereof
US8831145B2 (en) * 2010-05-18 2014-09-09 Texas Instruments Incorporated Hart transmitter/receiver systems

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3803501A (en) * 1972-11-17 1974-04-09 Ibm Frequency discriminator using digital non-recursive filters
US4027266A (en) * 1976-06-10 1977-05-31 International Telephone And Telegraph Corporation Digital FSK demodulator
JPS5432057A (en) * 1977-08-15 1979-03-09 Nec Corp Demodulator for frequency modulated signal
DE2809418C2 (de) * 1978-03-04 1989-08-31 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zur Demodulation eines phasensprungfreien, mehrfach frequenzmodulierten (FSK-) Signals
FR2446033A1 (fr) * 1979-01-03 1980-08-01 Materiel Telephonique Dispositif de demodulation d'un signal analogique module par sauts de frequence
JPS55109025A (en) * 1979-02-16 1980-08-21 Fujitsu Ltd Digital filter
US4423488A (en) * 1981-01-09 1983-12-27 Harris Corporation Digital filter employing PROM for storing positive and negative impulse response values
GB2095067B (en) * 1981-03-12 1984-10-03 Standard Telephones Cables Ltd Digital filter arrangement
DE3121444A1 (de) * 1981-05-29 1982-12-16 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zum demodulieren von fsk-signalen

Also Published As

Publication number Publication date
AU555132B2 (en) 1986-09-11
DE3121444A1 (de) 1982-12-16
EP0066229A1 (fr) 1982-12-08
DE3261446D1 (en) 1985-01-17
EP0066229B1 (fr) 1984-12-05
AU8428182A (en) 1982-12-02
ATE10691T1 (de) 1984-12-15
US4533874A (en) 1985-08-06

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