IT1084094B - TELEPHONE LINE CIRCUIT - Google Patents

TELEPHONE LINE CIRCUIT

Info

Publication number
IT1084094B
IT1084094B IT50829/77A IT5082977A IT1084094B IT 1084094 B IT1084094 B IT 1084094B IT 50829/77 A IT50829/77 A IT 50829/77A IT 5082977 A IT5082977 A IT 5082977A IT 1084094 B IT1084094 B IT 1084094B
Authority
IT
Italy
Prior art keywords
telephone line
line circuit
circuit
telephone
line
Prior art date
Application number
IT50829/77A
Other languages
Italian (it)
Original Assignee
Thomson Csf
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 Thomson Csf filed Critical Thomson Csf
Application granted granted Critical
Publication of IT1084094B publication Critical patent/IT1084094B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H04M19/005—Feeding arrangements without the use of line transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
IT50829/77A 1976-09-03 1977-08-31 TELEPHONE LINE CIRCUIT IT1084094B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7626614A FR2363952A1 (en) 1976-09-03 1976-09-03 TELEPHONE LINE CIRCUIT

Publications (1)

Publication Number Publication Date
IT1084094B true IT1084094B (en) 1985-05-25

Family

ID=9177355

Family Applications (1)

Application Number Title Priority Date Filing Date
IT50829/77A IT1084094B (en) 1976-09-03 1977-08-31 TELEPHONE LINE CIRCUIT

Country Status (8)

Country Link
JP (1) JPS5332605A (en)
BE (1) BE858262A (en)
DE (1) DE2739718A1 (en)
FR (1) FR2363952A1 (en)
GB (1) GB1530089A (en)
IT (1) IT1084094B (en)
NL (1) NL7709578A (en)
SE (1) SE7709758L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5531358A (en) * 1978-08-28 1980-03-05 Nec Corp Subscriber circuit
JPS5537046A (en) * 1978-09-06 1980-03-14 Nec Corp Subscriber's circuit
FR2437123A1 (en) * 1978-09-19 1980-04-18 Thomson Ericsson Telephones So Electronic power supply for telephone lines - comprises operational amplifier with feedback followed by transistor stage
NL7810086A (en) * 1978-10-06 1980-04-09 Philips Nv POWER BRIDGE FOR A SUBSCRIBER FLOW.
JPS5593392A (en) * 1979-01-10 1980-07-15 Nec Corp Subscriber circuit
NL7904159A (en) * 1979-05-28 1980-12-02 Philips Nv DEVICE FOR SUPPLYING SIGNALS TO A TELEPHONE LINE.

Also Published As

Publication number Publication date
DE2739718A1 (en) 1978-03-09
BE858262A (en) 1977-12-16
FR2363952A1 (en) 1978-03-31
SE7709758L (en) 1978-03-04
FR2363952B1 (en) 1981-09-25
GB1530089A (en) 1978-10-25
NL7709578A (en) 1978-03-07
JPS5332605A (en) 1978-03-28

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