FR1052560A - Signaling current receiver device for telephone circuits - Google Patents

Signaling current receiver device for telephone circuits

Info

Publication number
FR1052560A
FR1052560A FR1052560DA FR1052560A FR 1052560 A FR1052560 A FR 1052560A FR 1052560D A FR1052560D A FR 1052560DA FR 1052560 A FR1052560 A FR 1052560A
Authority
FR
France
Prior art keywords
receiver device
current receiver
signaling current
telephone circuits
telephone
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.)
Alsacienne de Constructions Mecaniques SA
Original Assignee
Alsacienne de Constructions Mecaniques SA
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 Alsacienne de Constructions Mecaniques SA filed Critical Alsacienne de Constructions Mecaniques SA
Application granted granted Critical
Publication of FR1052560A publication Critical patent/FR1052560A/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
    • H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR1052560D 1952-03-18 1952-03-18 Signaling current receiver device for telephone circuits Expired FR1052560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1052560T 1952-03-18

Publications (1)

Publication Number Publication Date
FR1052560A true FR1052560A (en) 1954-01-26

Family

ID=9595374

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1052560D Expired FR1052560A (en) 1952-03-18 1952-03-18 Signaling current receiver device for telephone circuits

Country Status (1)

Country Link
FR (1) FR1052560A (en)

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