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FR868478A - Installation for signal transmission - Google Patents

Installation for signal transmission

Info

Publication number
FR868478A
FR868478A FR868478DA FR868478A FR 868478 A FR868478 A FR 868478A FR 868478D A FR868478D A FR 868478DA FR 868478 A FR868478 A FR 868478A
Authority
FR
France
Prior art keywords
installation
signal transmission
transmission
signal
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
Other languages
French (fr)
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 Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
C Lorenz 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 Standard Elektrik Lorenz AG, C Lorenz AG filed Critical Standard Elektrik Lorenz AG
Application granted granted Critical
Publication of FR868478A publication Critical patent/FR868478A/en
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
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR868478D 1939-01-25 1940-12-28 Installation for signal transmission Expired FR868478A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE212745X 1939-01-25

Publications (1)

Publication Number Publication Date
FR868478A true FR868478A (en) 1941-12-31

Family

ID=5809651

Family Applications (1)

Application Number Title Priority Date Filing Date
FR868478D Expired FR868478A (en) 1939-01-25 1940-12-28 Installation for signal transmission

Country Status (3)

Country Link
BE (1) BE437349A (en)
CH (1) CH212745A (en)
FR (1) FR868478A (en)

Also Published As

Publication number Publication date
CH212745A (en) 1940-12-15
BE437349A (en)

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