GB1114641A - Two-way amplifier for telephone systems - Google Patents

Two-way amplifier for telephone systems

Info

Publication number
GB1114641A
GB1114641A GB3472665A GB3472665A GB1114641A GB 1114641 A GB1114641 A GB 1114641A GB 3472665 A GB3472665 A GB 3472665A GB 3472665 A GB3472665 A GB 3472665A GB 1114641 A GB1114641 A GB 1114641A
Authority
GB
United Kingdom
Prior art keywords
gain
channel
signal
voltages
amplifiers
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.)
Expired
Application number
GB3472665A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1114641A publication Critical patent/GB1114641A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Mobile Radio Communication Systems (AREA)
GB3472665A 1964-08-14 1965-08-13 Two-way amplifier for telephone systems Expired GB1114641A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE981764A SE306351B (cg-RX-API-DMAC10.html) 1964-08-14 1964-08-14

Publications (1)

Publication Number Publication Date
GB1114641A true GB1114641A (en) 1968-05-22

Family

ID=20277588

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3472665A Expired GB1114641A (en) 1964-08-14 1965-08-13 Two-way amplifier for telephone systems

Country Status (3)

Country Link
DE (1) DE1280331B (cg-RX-API-DMAC10.html)
GB (1) GB1114641A (cg-RX-API-DMAC10.html)
SE (1) SE306351B (cg-RX-API-DMAC10.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2907361C2 (de) * 1979-02-24 1982-06-09 Standard Elektrik Lorenz Ag, 7000 Stuttgart Schaltungsanordnung zur Störspannungsunterdrückung in Wechsel- oder Gegensprechanlagen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL245570A (cg-RX-API-DMAC10.html) * 1958-12-29
NL267461A (cg-RX-API-DMAC10.html) * 1960-10-04 1900-01-01

Also Published As

Publication number Publication date
SE306351B (cg-RX-API-DMAC10.html) 1968-11-25
DE1280331B (de) 1968-10-17

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