FR1502996A - Procédé et dispositif de signalisation électrique - Google Patents

Procédé et dispositif de signalisation électrique

Info

Publication number
FR1502996A
FR1502996A FR82179A FR82179A FR1502996A FR 1502996 A FR1502996 A FR 1502996A FR 82179 A FR82179 A FR 82179A FR 82179 A FR82179 A FR 82179A FR 1502996 A FR1502996 A FR 1502996A
Authority
FR
France
Prior art keywords
signaling method
electrical signaling
electrical
signaling
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
FR82179A
Other languages
English (en)
French (fr)
Inventor
George Menicou
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR1502996A publication Critical patent/FR1502996A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
    • H04Q1/4575—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals which are transmitted in digital form
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Time-Division Multiplex Systems (AREA)
FR82179A 1965-11-02 1966-11-02 Procédé et dispositif de signalisation électrique Expired FR1502996A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB46285/65A GB1066909A (en) 1965-11-02 1965-11-02 Improvements in or relating to electrical signalling systems

Publications (1)

Publication Number Publication Date
FR1502996A true FR1502996A (fr) 1967-11-24

Family

ID=10440614

Family Applications (1)

Application Number Title Priority Date Filing Date
FR82179A Expired FR1502996A (fr) 1965-11-02 1966-11-02 Procédé et dispositif de signalisation électrique

Country Status (5)

Country Link
US (1) US3510592A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1487640A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1502996A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1066909A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL6615479A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763322A (en) * 1971-10-01 1973-10-02 Integrated Systems Technology Digital-to-tone converter utilizing a relaxation oscillator
US4577333A (en) * 1984-09-13 1986-03-18 Gridcomm Inc. Composite shift keying communication system
GB2173675A (en) * 1985-03-22 1986-10-15 Steven Henry Lerman Communication system
GB2461890B (en) † 2008-07-16 2011-03-02 Tunstall Group Ltd Tone signalling

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947814A (en) * 1957-12-27 1960-08-02 Gen Railway Signal Co Carrier transmitter
US3121197A (en) * 1960-03-08 1964-02-11 Bell Telephone Labor Inc Voice-frequency binary data transmission system with return signal
US3268862A (en) * 1961-10-02 1966-08-23 Gen Signal Corp Code communication system
GB1026161A (en) * 1962-01-03 1966-04-14 Plessey Co Ltd Improvements in or relating to frequency-shift digital transmission systems
US3261922A (en) * 1962-12-28 1966-07-19 Bell Telephone Labor Inc Fdm data trunking system having a common tdm supervisory channel

Also Published As

Publication number Publication date
GB1066909A (en) 1967-04-26
US3510592A (en) 1970-05-05
NL6615479A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1967-05-03
DE1487640A1 (de) 1969-01-09

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