NL143775B - Conferentieschakeling. - Google Patents

Conferentieschakeling.

Info

Publication number
NL143775B
NL143775B NL656517026A NL6517026A NL143775B NL 143775 B NL143775 B NL 143775B NL 656517026 A NL656517026 A NL 656517026A NL 6517026 A NL6517026 A NL 6517026A NL 143775 B NL143775 B NL 143775B
Authority
NL
Netherlands
Prior art keywords
conference switch
conference
switch
Prior art date
Application number
NL656517026A
Other languages
English (en)
Other versions
NL6517026A (nl
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of NL6517026A publication Critical patent/NL6517026A/xx
Publication of NL143775B publication Critical patent/NL143775B/nl

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Interface Circuits In Exchanges (AREA)
NL656517026A 1964-12-28 1965-12-28 Conferentieschakeling. NL143775B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US421316A US3423538A (en) 1964-12-28 1964-12-28 Telephone conference circuit

Publications (2)

Publication Number Publication Date
NL6517026A NL6517026A (nl) 1966-06-29
NL143775B true NL143775B (nl) 1974-10-15

Family

ID=23670022

Family Applications (1)

Application Number Title Priority Date Filing Date
NL656517026A NL143775B (nl) 1964-12-28 1965-12-28 Conferentieschakeling.

Country Status (8)

Country Link
US (1) US3423538A (nl)
JP (1) JPS434763B1 (nl)
BE (1) BE674285A (nl)
DE (1) DE1562341B2 (nl)
FR (1) FR1462617A (nl)
GB (1) GB1130360A (nl)
NL (1) NL143775B (nl)
SE (1) SE336381B (nl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3655920A (en) * 1970-11-16 1972-04-11 Bell Telephone Labor Inc Electrical communication switching network
US3818139A (en) * 1971-10-22 1974-06-18 R Snyder Multipath conference system with switching
US4197429A (en) * 1978-07-17 1980-04-08 Bell Telephone Laboratories, Incorporated Gain-adjusting conference circuit
FR3030934B1 (fr) 2014-12-17 2018-09-28 Commissariat A L'energie Atomique Et Aux Energies Alternatives Convertisseur statique d'energie electrique comportant un commutateur de courant triphase

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1182304B (de) * 1963-06-22 1964-11-26 Standard Elektrik Lorenz Ag Konferenzschaltung mehrerer gleichberechtigter Zweidrahtteilnehmer fuer Gegensprechen

Also Published As

Publication number Publication date
DE1562341A1 (de) 1969-10-16
GB1130360A (en) 1968-10-16
US3423538A (en) 1969-01-21
SE336381B (nl) 1971-07-05
BE674285A (nl) 1966-04-15
JPS434763B1 (nl) 1968-02-21
NL6517026A (nl) 1966-06-29
FR1462617A (fr) 1966-12-16
DE1562341B2 (de) 1970-11-19

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Legal Events

Date Code Title Description
VJC Lapsed due to non-payment of the due maintenance fee for the patent or patent application
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: WESTERN ELECTR