FR1271500A - Coded signaling system including telephone - Google Patents

Coded signaling system including telephone

Info

Publication number
FR1271500A
FR1271500A FR825855A FR825855A FR1271500A FR 1271500 A FR1271500 A FR 1271500A FR 825855 A FR825855 A FR 825855A FR 825855 A FR825855 A FR 825855A FR 1271500 A FR1271500 A FR 1271500A
Authority
FR
France
Prior art keywords
system including
signaling system
including telephone
coded signaling
coded
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
FR825855A
Other languages
French (fr)
Inventor
Michel Marcel Rouzier
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 filed Critical
Priority to FR825855A priority Critical patent/FR1271500A/en
Application granted granted Critical
Publication of FR1271500A publication Critical patent/FR1271500A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR825855A 1960-04-30 1960-04-30 Coded signaling system including telephone Expired FR1271500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR825855A FR1271500A (en) 1960-04-30 1960-04-30 Coded signaling system including telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR825855A FR1271500A (en) 1960-04-30 1960-04-30 Coded signaling system including telephone

Publications (1)

Publication Number Publication Date
FR1271500A true FR1271500A (en) 1961-09-15

Family

ID=8730432

Family Applications (1)

Application Number Title Priority Date Filing Date
FR825855A Expired FR1271500A (en) 1960-04-30 1960-04-30 Coded signaling system including telephone

Country Status (1)

Country Link
FR (1) FR1271500A (en)

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