DK110112C - Amplifier for two-way call connection. - Google Patents

Amplifier for two-way call connection.

Info

Publication number
DK110112C
DK110112C DK105463A DK105463A DK110112C DK 110112 C DK110112 C DK 110112C DK 105463 A DK105463 A DK 105463A DK 105463 A DK105463 A DK 105463A DK 110112 C DK110112 C DK 110112C
Authority
DK
Denmark
Prior art keywords
amplifier
call connection
way call
way
connection
Prior art date
Application number
DK105463A
Other languages
Danish (da)
Original Assignee
L M Ericsson Ct Aktiebolag
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 L M Ericsson Ct Aktiebolag filed Critical L M Ericsson Ct Aktiebolag
Application granted granted Critical
Publication of DK110112C publication Critical patent/DK110112C/en

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
DK105463A 1962-03-09 1963-03-07 Amplifier for two-way call connection. DK110112C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE260362 1962-03-09

Publications (1)

Publication Number Publication Date
DK110112C true DK110112C (en) 1968-12-16

Family

ID=20260273

Family Applications (1)

Application Number Title Priority Date Filing Date
DK105463A DK110112C (en) 1962-03-09 1963-03-07 Amplifier for two-way call connection.

Country Status (3)

Country Link
DE (1) DE1188145B (en)
DK (1) DK110112C (en)
GB (1) GB979825A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1298572B (en) * 1967-03-17 1969-07-03 Siemens Ag Intercom or intercom
GB2137458B (en) * 1983-03-01 1986-11-19 Standard Telephones Cables Ltd Digital handsfree telephone

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE504122C (en) * 1929-01-28 1930-11-11 Siemens & Halske Akt Ges Transmission system with two-way traffic and feedback barriers
DE958935C (en) * 1954-02-08 1957-02-28 Telefunken Gmbh Circuit arrangement for voice-controlled echo and feedback barriers in intercom systems with loudspeaker operation
DE1058563B (en) * 1956-02-22 1959-06-04 Siemens Ag Circuit arrangement for whistling reduction in loudspeaker systems
NL125146C (en) * 1958-12-29
DE1066625B (en) * 1963-09-30 1959-10-08

Also Published As

Publication number Publication date
DE1188145B (en) 1965-03-04
GB979825A (en) 1965-01-06

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