IT977696B - Circuito elettrico per apparecchi telefonici - Google Patents

Circuito elettrico per apparecchi telefonici

Info

Publication number
IT977696B
IT977696B IT7367173A IT6717373A IT977696B IT 977696 B IT977696 B IT 977696B IT 7367173 A IT7367173 A IT 7367173A IT 6717373 A IT6717373 A IT 6717373A IT 977696 B IT977696 B IT 977696B
Authority
IT
Italy
Prior art keywords
electric circuit
telephone devices
telephone
devices
electric
Prior art date
Application number
IT7367173A
Other languages
English (en)
Original Assignee
Gen Electric Co Ltd
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 Gen Electric Co Ltd filed Critical Gen Electric Co Ltd
Application granted granted Critical
Publication of IT977696B publication Critical patent/IT977696B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
IT7367173A 1972-02-08 1973-01-29 Circuito elettrico per apparecchi telefonici IT977696B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB585172A GB1370956A (en) 1972-02-08 1972-02-08 Electric circuits for telephone instruments

Publications (1)

Publication Number Publication Date
IT977696B true IT977696B (it) 1974-09-20

Family

ID=9803826

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7367173A IT977696B (it) 1972-02-08 1973-01-29 Circuito elettrico per apparecchi telefonici

Country Status (4)

Country Link
AU (1) AU473616B2 (it)
GB (1) GB1370956A (it)
IT (1) IT977696B (it)
ZA (1) ZA73305B (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064366A (en) * 1976-01-15 1977-12-20 Winster Engineering Group Limited Intrinsically safe telephone systems
US4691344A (en) * 1986-01-21 1987-09-01 Aquatrol Corporation Low-powered remote sensor and telephone line transmitter
US4893332A (en) * 1986-05-12 1990-01-09 Aquatrol Corporation Low-powered remote sensor
DE19619610A1 (de) * 1996-05-15 1997-11-20 Bosch Gmbh Robert Fernsprechendgerät

Also Published As

Publication number Publication date
GB1370956A (en) 1974-10-16
AU473616B2 (en) 1976-06-24
ZA73305B (en) 1973-10-31
AU5113673A (en) 1974-07-18

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