SE8003864L - Anordning for att mata signaler till en telefonledning - Google Patents

Anordning for att mata signaler till en telefonledning

Info

Publication number
SE8003864L
SE8003864L SE8003864A SE8003864A SE8003864L SE 8003864 L SE8003864 L SE 8003864L SE 8003864 A SE8003864 A SE 8003864A SE 8003864 A SE8003864 A SE 8003864A SE 8003864 L SE8003864 L SE 8003864L
Authority
SE
Sweden
Prior art keywords
amplifier
signals
feating
circuits
line control
Prior art date
Application number
SE8003864A
Other languages
Unknown language ( )
English (en)
Swedish (sv)
Inventor
F A C M Schoofs
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of SE8003864L publication Critical patent/SE8003864L/

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Amplifiers (AREA)
  • Interface Circuits In Exchanges (AREA)
SE8003864A 1979-05-28 1980-05-23 Anordning for att mata signaler till en telefonledning SE8003864L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7904159A NL7904159A (nl) 1979-05-28 1979-05-28 Inrichting voor het toevoeren van signalen aan een telefoonlijn.

Publications (1)

Publication Number Publication Date
SE8003864L true SE8003864L (sv) 1980-11-29

Family

ID=19833256

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8003864A SE8003864L (sv) 1979-05-28 1980-05-23 Anordning for att mata signaler till en telefonledning

Country Status (11)

Country Link
US (1) US4310733A (it)
JP (1) JPS55161457A (it)
AU (1) AU534433B2 (it)
BE (1) BE883490A (it)
CA (1) CA1143494A (it)
DE (1) DE3019761C2 (it)
FR (1) FR2458183B1 (it)
GB (1) GB2051521B (it)
IT (1) IT1130749B (it)
NL (1) NL7904159A (it)
SE (1) SE8003864L (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3142201C2 (de) * 1981-01-23 1984-02-23 Mitel Corp., Kanata, Ontario Gabelschaltung für eine Fernmelde-, insbesondere Fernsprechanlage
NL8204377A (nl) * 1982-11-12 1984-06-01 Philips Nv Abonneecircuit voor een telefoonnet.
FR2564678B1 (fr) * 1984-05-18 1986-09-12 Thomson Csf Mat Tel Interface de liaison de circuit d'abonne pour autocommutateur telephonique
JPS60253364A (ja) * 1984-05-30 1985-12-14 Fujitsu Ltd 内部終端形給電回路
US6678360B1 (en) 1985-07-10 2004-01-13 Ronald A. Katz Technology Licensing, L.P. Telephonic-interface statistical analysis system
AU593951B2 (en) * 1986-10-20 1990-02-22 Fujitsu Limited An integrated ringing circuit and a ring trip circuit for the same
AU3744093A (en) * 1992-04-01 1993-11-08 Siemens Aktiengesellschaft Combined supply voltage connection and call A.C. voltage generator and connection for analog telephone receiver stations in extension installations
US5600713A (en) * 1994-11-15 1997-02-04 Advanced Micro Devices, Inc. On-board ring signal generator
US6137189A (en) * 1999-07-30 2000-10-24 Intersil Corporation Line circuit apparatus for supplying power to a telephone set in telecommunication systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064377A (en) * 1976-03-11 1977-12-20 Wescom Switching, Inc. Electronic hybrid and hybrid repeater
US4041252A (en) * 1976-06-07 1977-08-09 North Electric Company Transformerless two-wire/four-wire hybrid with DC sourcing capability
FR2363952A1 (fr) * 1976-09-03 1978-03-31 Thomson Csf Circuit de ligne telephonique
GB1527293A (en) * 1977-04-21 1978-10-04 Garwell K Composite collector load for class a semiconductor amplifier
US4113996A (en) * 1977-05-20 1978-09-12 Bell Telephone Laboratories, Incorporated Voltage controlled current sources for active hybrid circuit
US4192978A (en) * 1978-02-27 1980-03-11 Vincent Ogden W Operational amplifier hybrid system

Also Published As

Publication number Publication date
JPS55161457A (en) 1980-12-16
FR2458183B1 (fr) 1986-04-18
NL7904159A (nl) 1980-12-02
IT1130749B (it) 1986-06-18
DE3019761C2 (de) 1983-12-22
GB2051521A (en) 1981-01-14
US4310733A (en) 1982-01-12
AU534433B2 (en) 1984-01-26
FR2458183A1 (fr) 1980-12-26
AU5881280A (en) 1980-12-04
BE883490A (fr) 1980-11-27
DE3019761A1 (de) 1980-12-04
GB2051521B (en) 1983-03-16
CA1143494A (en) 1983-03-22
IT8022303A0 (it) 1980-05-23

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