BE630382A - - Google Patents

Info

Publication number
BE630382A
BE630382A BE630382DA BE630382A BE 630382 A BE630382 A BE 630382A BE 630382D A BE630382D A BE 630382DA BE 630382 A BE630382 A BE 630382A
Authority
BE
Belgium
Application number
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.)
Publication of BE630382A publication Critical patent/BE630382A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/40—Applications of speech amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
BE630382D 1962-03-30 BE630382A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE357762 1962-03-30

Publications (1)

Publication Number Publication Date
BE630382A true BE630382A (zh)

Family

ID=20262411

Family Applications (1)

Application Number Title Priority Date Filing Date
BE630382D BE630382A (zh) 1962-03-30

Country Status (6)

Country Link
US (1) US3306982A (zh)
BE (1) BE630382A (zh)
DE (1) DE1230863B (zh)
DK (1) DK108647C (zh)
GB (1) GB1030601A (zh)
NL (1) NL290910A (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798379A (en) * 1971-09-22 1974-03-19 Tel Ind Inc Connector terminal dial repulser
JPS4917111A (zh) * 1972-05-22 1974-02-15
US5206902A (en) * 1991-04-01 1993-04-27 At&T Bell Laboratories Network signaling arrangement for controlling tandem network functions
US5471527A (en) * 1993-12-02 1995-11-28 Dsc Communications Corporation Voice enhancement system and method
US5802164A (en) * 1995-12-22 1998-09-01 At&T Corp Systems and methods for controlling telephone sound enhancement on a per call basis

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL44236C (zh) * 1935-05-16
NL70924C (zh) * 1939-10-04
US2300415A (en) * 1941-04-26 1942-11-03 Bell Telephone Labor Inc Transmission control
BE511541A (zh) * 1951-05-21
DE1000465B (de) * 1954-06-09 1957-01-10 Siemens Ag Anordnung zum Verbinden von Zweidraht-Fernwahlleitungen ohne Verstaerker mit Vierdraht-Fernwahlleitungen mit Verstaerkern
DE1008784B (de) * 1954-06-09 1957-05-23 Siemens Ag Anordnung fuer die zweidraehtige Durchschaltung ohne Verstaerker mit Vierdraht-Fernwahlleitungen mit Verstaerkern
DE1107719B (de) * 1960-01-27 1961-05-31 Siemens Ag Schaltungsanordnung fuer Fernwahlnetze mit durch Gabeln gekuppelten Zweidraht-Vierdraht-Abschnitten

Also Published As

Publication number Publication date
NL290910A (zh)
DK108647C (da) 1968-01-22
DE1230863B (de) 1966-12-22
GB1030601A (en) 1966-05-25
US3306982A (en) 1967-02-28

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