CH345369A - Call detector device for an automatic telecommunication system, in particular a telephone system - Google Patents

Call detector device for an automatic telecommunication system, in particular a telephone system

Info

Publication number
CH345369A
CH345369A CH345369DA CH345369A CH 345369 A CH345369 A CH 345369A CH 345369D A CH345369D A CH 345369DA CH 345369 A CH345369 A CH 345369A
Authority
CH
Switzerland
Prior art keywords
detector device
call detector
automatic telecommunication
telephone system
telecommunication system
Prior art date
Application number
Other languages
German (de)
Inventor
Heetman Alphonsus
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH345369A publication Critical patent/CH345369A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
CH345369D 1955-03-28 1956-03-26 Call detector device for an automatic telecommunication system, in particular a telephone system CH345369A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL345369X 1955-03-28

Publications (1)

Publication Number Publication Date
CH345369A true CH345369A (en) 1960-03-31

Family

ID=19784875

Family Applications (1)

Application Number Title Priority Date Filing Date
CH345369D CH345369A (en) 1955-03-28 1956-03-26 Call detector device for an automatic telecommunication system, in particular a telephone system

Country Status (6)

Country Link
BE (1) BE546459A (en)
CH (1) CH345369A (en)
DE (1) DE1001335B (en)
FR (1) FR1144856A (en)
GB (1) GB836583A (en)
NL (2) NL196024A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE555481A (en) 1956-04-13
GB824466A (en) 1956-09-20 1959-12-02 Ericsson Telefon Ab L M Improvements in or relating to circuits for selecting the first member in a predetermined multi-stage sequence of members
DE1053575B (en) * 1957-09-30 1959-03-26 Siemens Ag Method and arrangement for preventing the loading of equipment by connecting an electrical dialer
NL111529C (en) * 1957-09-30
NL256763A (en) * 1959-10-16
NL271594A (en) * 1961-11-20
DE1167397B (en) 1962-07-20 1964-04-09 Telefunken Patent Circuit arrangement for telecommunications, in particular telephone systems for identifying calling lines
DE1168499B (en) 1962-10-25 1964-04-23 Telefunken Patent Circuit arrangement for checking the call and occupancy status of subscriber lines in telephone switching systems
GB990601A (en) * 1963-02-07 1965-04-28 Ericsson Telephones Ltd Telecommunication exchange apparatus

Also Published As

Publication number Publication date
FR1144856A (en) 1957-10-18
DE1001335B (en) 1957-01-24
GB836583A (en) 1960-06-09
NL196024A (en)
NL87154C (en)
BE546459A (en)

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