FR2341991A1 - Installation de communication verbale dans les deux sens - Google Patents

Installation de communication verbale dans les deux sens

Info

Publication number
FR2341991A1
FR2341991A1 FR7704822A FR7704822A FR2341991A1 FR 2341991 A1 FR2341991 A1 FR 2341991A1 FR 7704822 A FR7704822 A FR 7704822A FR 7704822 A FR7704822 A FR 7704822A FR 2341991 A1 FR2341991 A1 FR 2341991A1
Authority
FR
France
Prior art keywords
cable
wires
switches
selector
inputs
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.)
Pending
Application number
FR7704822A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2341991A1 publication Critical patent/FR2341991A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/04—Arrangements for interconnection not involving centralised switching involving a separate line for each pair of parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
FR7704822A 1976-02-20 1977-02-18 Installation de communication verbale dans les deux sens Pending FR2341991A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762606836 DE2606836C2 (de) 1976-02-20 1976-02-20 Gegensprechanlage

Publications (1)

Publication Number Publication Date
FR2341991A1 true FR2341991A1 (fr) 1977-09-16

Family

ID=5970397

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7704822A Pending FR2341991A1 (fr) 1976-02-20 1977-02-18 Installation de communication verbale dans les deux sens

Country Status (6)

Country Link
AT (1) AT350641B (fr)
BE (1) BE851469A (fr)
CH (1) CH614577A5 (fr)
DE (1) DE2606836C2 (fr)
FR (1) FR2341991A1 (fr)
NL (1) NL7701785A (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744966A (en) * 1950-10-05 1956-05-08 Executone Inf Sys Inc Intercommunication system
DE1171019B (de) * 1962-07-26 1964-05-27 Licentia Gmbh Wechselsprechanlage
DE1219991B (de) * 1963-02-26 1966-06-30 Haruo Nogami Schaltungsanordnung fuer Linienwaehlerfernsprechanlagen
DE2435345A1 (de) * 1974-07-23 1976-02-05 Philips Patentverwaltung Schaltungsanordnung fuer drahtgebundene wechsel- und/oder gegensprechanlagen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744966A (en) * 1950-10-05 1956-05-08 Executone Inf Sys Inc Intercommunication system
DE1171019B (de) * 1962-07-26 1964-05-27 Licentia Gmbh Wechselsprechanlage
DE1219991B (de) * 1963-02-26 1966-06-30 Haruo Nogami Schaltungsanordnung fuer Linienwaehlerfernsprechanlagen
DE2435345A1 (de) * 1974-07-23 1976-02-05 Philips Patentverwaltung Schaltungsanordnung fuer drahtgebundene wechsel- und/oder gegensprechanlagen

Also Published As

Publication number Publication date
CH614577A5 (en) 1979-11-30
DE2606836B1 (de) 1977-07-28
NL7701785A (nl) 1977-08-23
BE851469A (fr) 1977-06-16
DE2606836C2 (de) 1978-03-02
AT350641B (de) 1979-06-11
ATA96577A (de) 1978-11-15

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