IT1071242B - Dispositivo per consentire conversazione telefoniche senza l uso del microtelefono - Google Patents

Dispositivo per consentire conversazione telefoniche senza l uso del microtelefono

Info

Publication number
IT1071242B
IT1071242B IT6872676A IT6872676A IT1071242B IT 1071242 B IT1071242 B IT 1071242B IT 6872676 A IT6872676 A IT 6872676A IT 6872676 A IT6872676 A IT 6872676A IT 1071242 B IT1071242 B IT 1071242B
Authority
IT
Italy
Prior art keywords
microphone
telephone conversation
allow telephone
allow
conversation
Prior art date
Application number
IT6872676A
Other languages
English (en)
Original Assignee
Astrologo Ets
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 Astrologo Ets filed Critical Astrologo Ets
Application granted granted Critical
Publication of IT1071242B publication Critical patent/IT1071242B/it

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
IT6872676A 1975-07-17 1976-07-09 Dispositivo per consentire conversazione telefoniche senza l uso del microtelefono IT1071242B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH936475A CH589392A5 (en) 1975-07-17 1975-07-17 Stabilised telephone amplifier with equaliser - includes two operational amplifiers in summing circuit of equaliser

Publications (1)

Publication Number Publication Date
IT1071242B true IT1071242B (it) 1985-04-02

Family

ID=4351206

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6872676A IT1071242B (it) 1975-07-17 1976-07-09 Dispositivo per consentire conversazione telefoniche senza l uso del microtelefono

Country Status (2)

Country Link
CH (1) CH589392A5 (it)
IT (1) IT1071242B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2481550B1 (fr) * 1980-04-25 1985-08-02 Trt Telecom Radio Electr Dispositif de protection contre l'effet larsen dans un poste telephonique a haut-parleur

Also Published As

Publication number Publication date
CH589392A5 (en) 1977-06-30

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