IT1126655B - Circuito di trasmissione telefonico a doppino variabile - Google Patents

Circuito di trasmissione telefonico a doppino variabile

Info

Publication number
IT1126655B
IT1126655B IT28307/79A IT2830779A IT1126655B IT 1126655 B IT1126655 B IT 1126655B IT 28307/79 A IT28307/79 A IT 28307/79A IT 2830779 A IT2830779 A IT 2830779A IT 1126655 B IT1126655 B IT 1126655B
Authority
IT
Italy
Prior art keywords
transmission circuit
telephone transmission
double variable
variable telephone
double
Prior art date
Application number
IT28307/79A
Other languages
English (en)
Other versions
IT7928307A0 (it
Inventor
Victor G Burger
Original Assignee
Gte Automatic Electric Lab Inc
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 Gte Automatic Electric Lab Inc filed Critical Gte Automatic Electric Lab Inc
Publication of IT7928307A0 publication Critical patent/IT7928307A0/it
Application granted granted Critical
Publication of IT1126655B publication Critical patent/IT1126655B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
IT28307/79A 1978-12-29 1979-12-21 Circuito di trasmissione telefonico a doppino variabile IT1126655B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/974,393 US4238645A (en) 1978-12-29 1978-12-29 Variable loop telephone transmission circuit

Publications (2)

Publication Number Publication Date
IT7928307A0 IT7928307A0 (it) 1979-12-21
IT1126655B true IT1126655B (it) 1986-05-21

Family

ID=25521983

Family Applications (1)

Application Number Title Priority Date Filing Date
IT28307/79A IT1126655B (it) 1978-12-29 1979-12-21 Circuito di trasmissione telefonico a doppino variabile

Country Status (5)

Country Link
US (1) US4238645A (it)
JP (1) JPS5593357A (it)
BE (1) BE879056A (it)
CA (1) CA1134083A (it)
IT (1) IT1126655B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6163579A (en) * 1998-03-04 2000-12-19 Analog Devices, Inc. Broadband modem transformer hybird

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517138A (en) * 1967-09-25 1970-06-23 Automatic Elect Lab Long loop anti-side-tone telephone circuit

Also Published As

Publication number Publication date
CA1134083A (en) 1982-10-19
IT7928307A0 (it) 1979-12-21
BE879056A (fr) 1980-01-16
US4238645A (en) 1980-12-09
JPS5593357A (en) 1980-07-15

Similar Documents

Publication Publication Date Title
IT7921326A0 (it) Circuito di filtro con funzione di trasferimento biquadratica.
IT1140757B (it) Trasmissione variabile a pulegge
IT1110501B (it) Circuito di filtro passa-banda a inseguimento
DK523179A (da) Telefonapparat
AR216973A1 (es) Conjunto de transmision homocinetico
IT7967420A0 (it) Succhiotto a portata variabile
BR7904365A (pt) Transmissao mecanica portatil
IT1160444B (it) Circuito di trasmissione in facsimile
BR7900908A (pt) Transmissao hidromecanica
FI791137A7 (fi) Transmissionsanordning
IT7821619A0 (it) Circuito di commutazione ditrasmissione a semiconduttori.
IT7968788A0 (it) Trasmissione di potenza a cinghia trapezoidale a rapporto variabile automaticamente
FR2426843B1 (fr) Transmission a engrenages
IT1111123B (it) Amplificatore con costante di trasmissione variabile
BR7902151A (pt) Conjunto de transmissao
IT7824498A0 (it) Tachimetro elettronico con differenziatore a larghezza di banda variabile.
IT7969096A0 (it) Gruppo di trasmissione a rapporto variabile con continuita
IT7969067A0 (it) Circuito temporizzatore elettronico numerico particolarmente per tele comunicazioni
DK148028C (da) Elektronisk udloesesystem
IT1126655B (it) Circuito di trasmissione telefonico a doppino variabile
JPS5510196A (en) Multistage transmission device
IT1112553B (it) Meccanismo di trasmissione
BR8005521A (pt) Circuito eletronico de telefone
IT1152078B (it) Circuito elettronico a impedenza, variabile
AR222469A1 (es) Disposicion de circuito de transmision telegrafica