FR1490825A - Improvements to telecommunications installations, and in particular telephony - Google Patents

Improvements to telecommunications installations, and in particular telephony

Info

Publication number
FR1490825A
FR1490825A FR73999A FR73999A FR1490825A FR 1490825 A FR1490825 A FR 1490825A FR 73999 A FR73999 A FR 73999A FR 73999 A FR73999 A FR 73999A FR 1490825 A FR1490825 A FR 1490825A
Authority
FR
France
Prior art keywords
particular telephony
telecommunications installations
installations
telecommunications
telephony
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
FR73999A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens 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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR1490825A publication Critical patent/FR1490825A/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
    • H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of dc pulses
    • H04Q1/36—Pulse-correcting arrangements, e.g. for reducing effects due to interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Meter Arrangements (AREA)
FR73999A 1965-08-25 1966-08-24 Improvements to telecommunications installations, and in particular telephony Expired FR1490825A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1965S0099036 DE1279774B (en) 1965-08-25 1965-08-25 Circuit arrangement for telecommunications, in particular telephone systems, in which dialing codes arriving in the form of a series of pulses are to be sent on after a correction

Publications (1)

Publication Number Publication Date
FR1490825A true FR1490825A (en) 1967-08-04

Family

ID=7521922

Family Applications (1)

Application Number Title Priority Date Filing Date
FR73999A Expired FR1490825A (en) 1965-08-25 1966-08-24 Improvements to telecommunications installations, and in particular telephony

Country Status (5)

Country Link
BE (1) BE685957A (en)
DE (1) DE1279774B (en)
FR (1) FR1490825A (en)
GB (1) GB1111573A (en)
SE (1) SE356195B (en)

Also Published As

Publication number Publication date
DE1279774B (en) 1968-10-10
BE685957A (en) 1967-02-27
GB1111573A (en) 1968-05-01
SE356195B (en) 1973-05-14

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