FR2334249A1 - Systeme d'identification pour central telephonique prive - Google Patents

Systeme d'identification pour central telephonique prive

Info

Publication number
FR2334249A1
FR2334249A1 FR7536923A FR7536923A FR2334249A1 FR 2334249 A1 FR2334249 A1 FR 2334249A1 FR 7536923 A FR7536923 A FR 7536923A FR 7536923 A FR7536923 A FR 7536923A FR 2334249 A1 FR2334249 A1 FR 2334249A1
Authority
FR
France
Prior art keywords
generator
pulse train
private telephone
khz
introduces
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.)
Granted
Application number
FR7536923A
Other languages
English (en)
Other versions
FR2334249B1 (fr
Inventor
Andre Mingaud
Pierre Henri Cogne
Chantal Marie Alice Ciavaldini
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.)
Constr Telephoniques
Original Assignee
Constr Telephoniques
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 Constr Telephoniques filed Critical Constr Telephoniques
Priority to FR7536923A priority Critical patent/FR2334249A1/fr
Priority to BE2055499A priority patent/BE848967A/fr
Publication of FR2334249A1 publication Critical patent/FR2334249A1/fr
Application granted granted Critical
Publication of FR2334249B1 publication Critical patent/FR2334249B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Devices For Supply Of Signal Current (AREA)
FR7536923A 1975-12-03 1975-12-03 Systeme d'identification pour central telephonique prive Granted FR2334249A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7536923A FR2334249A1 (fr) 1975-12-03 1975-12-03 Systeme d'identification pour central telephonique prive
BE2055499A BE848967A (fr) 1975-12-03 1976-12-02 Systeme d'identification pour central telephonique prive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7536923A FR2334249A1 (fr) 1975-12-03 1975-12-03 Systeme d'identification pour central telephonique prive

Publications (2)

Publication Number Publication Date
FR2334249A1 true FR2334249A1 (fr) 1977-07-01
FR2334249B1 FR2334249B1 (fr) 1981-09-25

Family

ID=9163242

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7536923A Granted FR2334249A1 (fr) 1975-12-03 1975-12-03 Systeme d'identification pour central telephonique prive

Country Status (2)

Country Link
BE (1) BE848967A (fr)
FR (1) FR2334249A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012334B (de) * 1956-06-15 1957-07-18 Standard Elektrik Ag Schaltungsanordnung zur Identifizierung von gruppenweise aufgeteilten Leitungen
DE2009075A1 (de) * 1970-02-26 1971-09-09 Siemens Ag Schaltungsanordnung zum Übertragen besonderer Nachrichten , beispielsweise Fernsehzeichen, über Sonderverbindungs wege in Fernmelde , insbesondere Fern Sprechanlagen
GB1359508A (en) * 1970-06-10 1974-07-10 Australia Postmaster Generals Apparatus for detecting the presence of a time varying signal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012334B (de) * 1956-06-15 1957-07-18 Standard Elektrik Ag Schaltungsanordnung zur Identifizierung von gruppenweise aufgeteilten Leitungen
DE2009075A1 (de) * 1970-02-26 1971-09-09 Siemens Ag Schaltungsanordnung zum Übertragen besonderer Nachrichten , beispielsweise Fernsehzeichen, über Sonderverbindungs wege in Fernmelde , insbesondere Fern Sprechanlagen
GB1359508A (en) * 1970-06-10 1974-07-10 Australia Postmaster Generals Apparatus for detecting the presence of a time varying signal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/74 *

Also Published As

Publication number Publication date
FR2334249B1 (fr) 1981-09-25
BE848967A (fr) 1977-06-02

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Legal Events

Date Code Title Description
TP Transmission of property