FR1354827A - Improved ringing circuits for telephone - Google Patents

Improved ringing circuits for telephone

Info

Publication number
FR1354827A
FR1354827A FR913895A FR913895A FR1354827A FR 1354827 A FR1354827 A FR 1354827A FR 913895 A FR913895 A FR 913895A FR 913895 A FR913895 A FR 913895A FR 1354827 A FR1354827 A FR 1354827A
Authority
FR
France
Prior art keywords
telephone
ringing circuits
improved ringing
improved
circuits
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
FR913895A
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.)
Ericsson Telephones Ltd
Original Assignee
Ericsson Telephones Ltd
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 Ericsson Telephones Ltd filed Critical Ericsson Telephones Ltd
Priority to FR913895A priority Critical patent/FR1354827A/en
Application granted granted Critical
Publication of FR1354827A publication Critical patent/FR1354827A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR913895A 1962-10-30 1962-10-30 Improved ringing circuits for telephone Expired FR1354827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR913895A FR1354827A (en) 1962-10-30 1962-10-30 Improved ringing circuits for telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR913895A FR1354827A (en) 1962-10-30 1962-10-30 Improved ringing circuits for telephone

Publications (1)

Publication Number Publication Date
FR1354827A true FR1354827A (en) 1964-03-13

Family

ID=8789808

Family Applications (1)

Application Number Title Priority Date Filing Date
FR913895A Expired FR1354827A (en) 1962-10-30 1962-10-30 Improved ringing circuits for telephone

Country Status (1)

Country Link
FR (1) FR1354827A (en)

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