FR2280243A1 - Demodulateur de frequence pour un systeme de transmission de donnees par deplacement de frequence - Google Patents

Demodulateur de frequence pour un systeme de transmission de donnees par deplacement de frequence

Info

Publication number
FR2280243A1
FR2280243A1 FR7425486A FR7425486A FR2280243A1 FR 2280243 A1 FR2280243 A1 FR 2280243A1 FR 7425486 A FR7425486 A FR 7425486A FR 7425486 A FR7425486 A FR 7425486A FR 2280243 A1 FR2280243 A1 FR 2280243A1
Authority
FR
France
Prior art keywords
frequency
data transmission
transmission system
shift data
demodulator
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.)
Granted
Application number
FR7425486A
Other languages
English (en)
Other versions
FR2280243B1 (fr
Inventor
Loic Bernard Yves Guidoux
Daniel Jose Francois Lommer
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.)
Telecommunications Radioelectriques et Telephoniques SA TRT
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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 Telecommunications Radioelectriques et Telephoniques SA TRT filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
Priority to FR7425486A priority Critical patent/FR2280243A1/fr
Priority to US05/587,268 priority patent/US3980961A/en
Priority to DE19752530725 priority patent/DE2530725C3/de
Priority to IT68892/75A priority patent/IT1041315B/it
Priority to GB30216/75A priority patent/GB1513756A/en
Priority to JP8911075A priority patent/JPS5430869B2/ja
Priority to SE7508260A priority patent/SE399168B/xx
Publication of FR2280243A1 publication Critical patent/FR2280243A1/fr
Application granted granted Critical
Publication of FR2280243B1 publication Critical patent/FR2280243B1/fr
Granted 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
    • H04L27/10—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
    • 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
FR7425486A 1974-07-23 1974-07-23 Demodulateur de frequence pour un systeme de transmission de donnees par deplacement de frequence Granted FR2280243A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7425486A FR2280243A1 (fr) 1974-07-23 1974-07-23 Demodulateur de frequence pour un systeme de transmission de donnees par deplacement de frequence
US05/587,268 US3980961A (en) 1974-07-23 1975-06-16 Frequency demodulator for a FSK data transmission system
DE19752530725 DE2530725C3 (de) 1974-07-23 1975-07-10 Frequenzdemodulator für ein System zur Datenübertragung mit Hilfe von Frequenzumtastung
IT68892/75A IT1041315B (it) 1974-07-23 1975-07-18 Demodulatore di frquenza per sistemi di trasmissione di dati con spostamento di frequenza
GB30216/75A GB1513756A (en) 1974-07-23 1975-07-18 Demodulator
JP8911075A JPS5430869B2 (fr) 1974-07-23 1975-07-21
SE7508260A SE399168B (sv) 1974-07-23 1975-07-21 Frekvensdemodulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7425486A FR2280243A1 (fr) 1974-07-23 1974-07-23 Demodulateur de frequence pour un systeme de transmission de donnees par deplacement de frequence

Publications (2)

Publication Number Publication Date
FR2280243A1 true FR2280243A1 (fr) 1976-02-20
FR2280243B1 FR2280243B1 (fr) 1977-10-14

Family

ID=9141581

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7425486A Granted FR2280243A1 (fr) 1974-07-23 1974-07-23 Demodulateur de frequence pour un systeme de transmission de donnees par deplacement de frequence

Country Status (6)

Country Link
US (1) US3980961A (fr)
JP (1) JPS5430869B2 (fr)
FR (1) FR2280243A1 (fr)
GB (1) GB1513756A (fr)
IT (1) IT1041315B (fr)
SE (1) SE399168B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5330096A (en) * 1976-08-31 1978-03-20 Toyoda Mach Works Ltd Cam grinder
DE3128992A1 (de) * 1981-07-22 1983-05-05 Siemens AG, 1000 Berlin und 8000 München Duplex-sende-empfangseinrichtung
DE3129002A1 (de) * 1981-07-22 1983-02-03 Siemens AG, 1000 Berlin und 8000 München Duplex-sende-empfangseinrichtung
JPS59207770A (ja) * 1983-05-11 1984-11-24 Yuniden Kk デジタル・コ−ド信号復調回路
JPS6487151A (en) * 1987-09-22 1989-03-31 Toshiba Machine Co Ltd Grinding amount correction system for numerical control machine tool
JPS6487149A (en) * 1987-09-22 1989-03-31 Toshiba Machine Co Ltd Grinding amount correcting system for numerical control machine tool
JPS6487152A (en) * 1987-09-22 1989-03-31 Toshiba Machine Co Ltd Grinding control system for numerical control machine tool
JPS6487153A (en) * 1987-09-22 1989-03-31 Toshiba Machine Co Ltd Grinding amount correction system for numerical control machine tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB995705A (en) * 1962-07-30 1965-06-23 Tesla Np Arrangement of a telegraphy circuit for double-current traffic
GB1270571A (en) * 1969-07-16 1972-04-12 Digitronics Corp Improvements in or relating to frequency detectors

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3303425A (en) * 1963-04-09 1967-02-07 Atlantic Res Corp Binary detection system
US3601710A (en) * 1969-08-22 1971-08-24 Bell Telephone Labor Inc Digital detector for binary fsk signaling

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB995705A (en) * 1962-07-30 1965-06-23 Tesla Np Arrangement of a telegraphy circuit for double-current traffic
GB1270571A (en) * 1969-07-16 1972-04-12 Digitronics Corp Improvements in or relating to frequency detectors

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Revue DE 'FREQUENZ', vol. 27, no. 7, juillet 1973, pages 175 - 183, de W. ZSCHUNKE, Article: 'Einige neue Prinzipien für Frequenz Diskriminatoren bei Datenübertragung' *

Also Published As

Publication number Publication date
US3980961A (en) 1976-09-14
IT1041315B (it) 1980-01-10
JPS5135271A (fr) 1976-03-25
SE7508260L (sv) 1976-01-26
JPS5430869B2 (fr) 1979-10-03
SE399168B (sv) 1978-01-30
GB1513756A (en) 1978-06-07
FR2280243B1 (fr) 1977-10-14
DE2530725B2 (de) 1977-03-17
DE2530725A1 (de) 1976-02-05

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Legal Events

Date Code Title Description
ST Notification of lapse