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FR714908A - Device for receiving current pulses, in particular using remote transmission lines or similar devices - Google Patents

Device for receiving current pulses, in particular using remote transmission lines or similar devices

Info

Publication number
FR714908A
FR714908A FR714908DA FR714908A FR 714908 A FR714908 A FR 714908A FR 714908D A FR714908D A FR 714908DA FR 714908 A FR714908 A FR 714908A
Authority
FR
France
Prior art keywords
transmission lines
similar devices
current pulses
remote transmission
receiving current
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of FR714908A publication Critical patent/FR714908A/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)
  • Telephonic Communication Services (AREA)
FR714908D 1931-04-07 1931-04-07 Device for receiving current pulses, in particular using remote transmission lines or similar devices Expired FR714908A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR714908T 1931-04-07
GB10530/31A GB372066A (en) 1931-04-07 1931-04-09 Improvements in telephone systems
BE379502T 1931-05-01

Publications (1)

Publication Number Publication Date
FR714908A true FR714908A (en) 1931-11-23

Family

ID=40498641

Family Applications (1)

Application Number Title Priority Date Filing Date
FR714908D Expired FR714908A (en) 1931-04-07 1931-04-07 Device for receiving current pulses, in particular using remote transmission lines or similar devices

Country Status (3)

Country Link
BE (1) BE379502A (en)
FR (1) FR714908A (en)
GB (1) GB372066A (en)

Also Published As

Publication number Publication date
GB372066A (en) 1932-05-05
BE379502A (en) 1931-06-30

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