NL7904159A - Inrichting voor het toevoeren van signalen aan een telefoonlijn. - Google Patents

Inrichting voor het toevoeren van signalen aan een telefoonlijn. Download PDF

Info

Publication number
NL7904159A
NL7904159A NL7904159A NL7904159A NL7904159A NL 7904159 A NL7904159 A NL 7904159A NL 7904159 A NL7904159 A NL 7904159A NL 7904159 A NL7904159 A NL 7904159A NL 7904159 A NL7904159 A NL 7904159A
Authority
NL
Netherlands
Prior art keywords
voltage
input
output
line
circuit
Prior art date
Application number
NL7904159A
Other languages
English (en)
Dutch (nl)
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
Priority to NL7904159A priority Critical patent/NL7904159A/nl
Priority to US06/147,973 priority patent/US4310733A/en
Priority to CA000352542A priority patent/CA1143494A/en
Priority to GB8017182A priority patent/GB2051521B/en
Priority to DE3019761A priority patent/DE3019761C2/de
Priority to FR8011592A priority patent/FR2458183B1/fr
Priority to SE8003864A priority patent/SE8003864L/
Priority to IT22303/80A priority patent/IT1130749B/it
Priority to AU58812/80A priority patent/AU534433B2/en
Priority to BE0/200774A priority patent/BE883490A/fr
Priority to JP7025880A priority patent/JPS55161457A/ja
Publication of NL7904159A publication Critical patent/NL7904159A/nl

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)
NL7904159A 1979-05-28 1979-05-28 Inrichting voor het toevoeren van signalen aan een telefoonlijn. NL7904159A (nl)

Priority Applications (11)

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.
US06/147,973 US4310733A (en) 1979-05-28 1980-05-08 Arrangement for applying signals to a telephone line
CA000352542A CA1143494A (en) 1979-05-28 1980-05-22 Arrangement for applying signals to a telephone line
GB8017182A GB2051521B (en) 1979-05-28 1980-05-23 Arrangement for applying signals to a telephone line
DE3019761A DE3019761C2 (de) 1979-05-28 1980-05-23 Schaltungsanordnung zum Zuführen von Signalen an eine Fernsprechleitung
FR8011592A FR2458183B1 (fr) 1979-05-28 1980-05-23 Dispositif pour amener des signaux a une ligne telephonique
SE8003864A SE8003864L (sv) 1979-05-28 1980-05-23 Anordning for att mata signaler till en telefonledning
IT22303/80A IT1130749B (it) 1979-05-28 1980-05-23 Complesso per l'applicazione di segnali ad una linea telefonica
AU58812/80A AU534433B2 (en) 1979-05-28 1980-05-27 Applying signals to telephone line
BE0/200774A BE883490A (fr) 1979-05-28 1980-05-27 Dispositif pour amener des signaux a une ligne telephonique
JP7025880A JPS55161457A (en) 1979-05-28 1980-05-28 Telephone channel signal supply device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7904159 1979-05-28
NL7904159A NL7904159A (nl) 1979-05-28 1979-05-28 Inrichting voor het toevoeren van signalen aan een telefoonlijn.

Publications (1)

Publication Number Publication Date
NL7904159A true NL7904159A (nl) 1980-12-02

Family

ID=19833256

Family Applications (1)

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

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
WO1993020646A1 (de) * 1992-04-01 1993-10-14 Siemens Aktiengesellschaft Kombinierte speisespannungsanschaltung und rufwechselspannungserzeugung und -anschaltung für analoge fernsprechendstellen in nebenstellenanlagen
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
IT8022303A0 (it) 1980-05-23
IT1130749B (it) 1986-06-18
GB2051521B (en) 1983-03-16
BE883490A (fr) 1980-11-27
AU5881280A (en) 1980-12-04
CA1143494A (en) 1983-03-22
SE8003864L (sv) 1980-11-29
FR2458183A1 (fr) 1980-12-26
DE3019761A1 (de) 1980-12-04
DE3019761C2 (de) 1983-12-22
FR2458183B1 (fr) 1986-04-18
JPS55161457A (en) 1980-12-16
AU534433B2 (en) 1984-01-26
GB2051521A (en) 1981-01-14
US4310733A (en) 1982-01-12

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BI The patent application has been withdrawn