BE812212A - Terminal de communication a reception amplifiee et procede pourle mettre en oeuvre - Google Patents

Terminal de communication a reception amplifiee et procede pourle mettre en oeuvre

Info

Publication number
BE812212A
BE812212A BE141936A BE141936A BE812212A BE 812212 A BE812212 A BE 812212A BE 141936 A BE141936 A BE 141936A BE 141936 A BE141936 A BE 141936A BE 812212 A BE812212 A BE 812212A
Authority
BE
Belgium
Prior art keywords
implementing
communication terminal
amplified reception
amplified
reception
Prior art date
Application number
BE141936A
Other languages
English (en)
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 filed Critical
Publication of BE812212A publication Critical patent/BE812212A/fr

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
    • H04M9/10—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic with switching of direction of transmission by voice frequency
    • 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)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Amplifiers (AREA)
BE141936A 1973-03-12 1974-03-12 Terminal de communication a reception amplifiee et procede pourle mettre en oeuvre BE812212A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA165,801A CA976677A (en) 1973-03-12 1973-03-12 Loudspeaking communication terminal apparatus and method of operation

Publications (1)

Publication Number Publication Date
BE812212A true BE812212A (fr) 1974-07-31

Family

ID=4096059

Family Applications (1)

Application Number Title Priority Date Filing Date
BE141936A BE812212A (fr) 1973-03-12 1974-03-12 Terminal de communication a reception amplifiee et procede pourle mettre en oeuvre

Country Status (11)

Country Link
AU (1) AU476504B2 (fr)
BE (1) BE812212A (fr)
BR (1) BR7401879D0 (fr)
CA (1) CA976677A (fr)
FR (1) FR2221885B1 (fr)
GB (1) GB1444828A (fr)
IE (1) IE40708B1 (fr)
IT (1) IT1025013B (fr)
NL (1) NL169809C (fr)
SE (1) SE400148B (fr)
ZA (1) ZA741555B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4178548A (en) * 1976-10-04 1979-12-11 Geraldine E. Thompson Voice actuated mobile radio
DE2842369A1 (de) * 1978-09-28 1980-04-10 Siemens Ag Schaltungsanordnung fuer eine sprachgesteuerte lautfernsprechstation in fernmelde-, insbesondere fernsprechanlagen
GB2174578B (en) * 1985-05-04 1988-11-09 Stc Plc Loud speaking telephone
FI73341C (fi) * 1985-08-06 1987-09-10 Outel Oy Mellanfoerstaerkare som anvaends i tvaoledningsfoerbindelser i ett valbart telefonnaet samt foerfarande foer reglering av dess foerstaerkning.
CA1291837C (fr) * 1987-07-15 1991-11-05 Juro Ohga Poste telephonique a suppression du bruit

Also Published As

Publication number Publication date
CA976677A (en) 1975-10-21
NL169809B (nl) 1982-03-16
BR7401879D0 (pt) 1974-11-19
GB1444828A (fr) 1976-08-04
NL7403286A (fr) 1974-09-16
DE2411501A1 (de) 1974-10-10
DE2411501B2 (de) 1975-08-21
NL169809C (nl) 1982-08-16
ZA741555B (en) 1975-02-26
SE400148B (sv) 1978-03-13
AU476504B2 (en) 1976-09-23
IE40708B1 (en) 1979-08-01
FR2221885B1 (fr) 1982-04-23
AU6657974A (en) 1975-09-18
FR2221885A1 (fr) 1974-10-11
IT1025013B (it) 1978-08-10

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