NL8006665A - Tussenschakeling voor een abonneelijn. - Google Patents

Tussenschakeling voor een abonneelijn. Download PDF

Info

Publication number
NL8006665A
NL8006665A NL8006665A NL8006665A NL8006665A NL 8006665 A NL8006665 A NL 8006665A NL 8006665 A NL8006665 A NL 8006665A NL 8006665 A NL8006665 A NL 8006665A NL 8006665 A NL8006665 A NL 8006665A
Authority
NL
Netherlands
Prior art keywords
line
digital
analog
converter
circuit
Prior art date
Application number
NL8006665A
Other languages
English (en)
Dutch (nl)
Original Assignee
Standard Telephones Cables 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 Standard Telephones Cables Ltd filed Critical Standard Telephones Cables Ltd
Publication of NL8006665A publication Critical patent/NL8006665A/nl

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
NL8006665A 1979-12-13 1980-12-09 Tussenschakeling voor een abonneelijn. NL8006665A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7943074 1979-12-13
GB7943074A GB2066023B (en) 1979-12-13 1979-12-13 Telephone line interface

Publications (1)

Publication Number Publication Date
NL8006665A true NL8006665A (nl) 1981-07-16

Family

ID=10509838

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8006665A NL8006665A (nl) 1979-12-13 1980-12-09 Tussenschakeling voor een abonneelijn.

Country Status (15)

Country Link
US (1) US4345115A (ja)
JP (1) JPS56111394A (ja)
AU (1) AU541812B2 (ja)
BE (1) BE890404R (ja)
CH (1) CH651986A5 (ja)
DE (1) DE3043906A1 (ja)
EG (1) EG13942A (ja)
FR (1) FR2472320A1 (ja)
GB (1) GB2066023B (ja)
IE (1) IE50882B1 (ja)
IT (1) IT1134726B (ja)
NL (1) NL8006665A (ja)
NZ (1) NZ195660A (ja)
SE (1) SE8008587L (ja)
ZA (1) ZA807678B (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410982A (en) * 1981-05-07 1983-10-18 Gte Automatic Electric Labs. Inc. Arrangement for extending digital signaling to telephone subscribers' substations
DE3221387A1 (de) * 1982-06-05 1983-12-08 Krone Gmbh, 1000 Berlin Digitales fernsprechendgeraet mit anschluessen fuer analoge zusatzgeraete
US4592046A (en) * 1983-03-13 1986-05-27 Iwasaki Tsushinki Kabushiki Kaisha Subscriber's circuit for time division switching system
JPS63283351A (ja) * 1987-05-15 1988-11-21 Canon Inc Ｉｓｄｎタ−ミナルアダプタ
US5241564A (en) * 1989-08-30 1993-08-31 Digital Equipment Corporation Low noise, high performance data bus system and method
AT406534B (de) * 1996-07-03 2000-06-26 Ericsson Austria Ag Schaltungsanordnung zur detektion von analogen vermittlungs- und prüfsignalen
US6169801B1 (en) 1998-03-16 2001-01-02 Midcom, Inc. Digital isolation apparatus and method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377132A1 (fr) * 1977-01-11 1978-08-04 Labo Cent Telecommunicat Dispositif de protection pour joncteur electronique
NL7700719A (nl) * 1977-01-25 1978-07-27 Philips Nv Storingsongevoelig lijnsupervisiecircuit.
US4087646A (en) * 1977-01-28 1978-05-02 Bell Telephone Laboratories, Incorporated Dual mode telephone subscriber loop current detector
GB1583635A (en) * 1977-03-02 1981-01-28 Int Standard Electric Corp Subscriber line or trunk circuit
JPS5469906A (en) * 1977-11-15 1979-06-05 Nippon Telegr & Teleph Corp <Ntt> Analog-to-digital converter circuit
JPS54157407A (en) * 1978-06-02 1979-12-12 Hitachi Ltd Level control unit for time-division exchange
US4268723A (en) * 1979-09-04 1981-05-19 Western Electric Company Circuits and methods for initializing the loop current of a telephone set
GB2064915B (en) * 1979-11-29 1984-03-21 Standard Telephones Cables Ltd Telephone line feed circuit

Also Published As

Publication number Publication date
EG13942A (en) 1983-03-31
BE890404R (fr) 1982-01-18
IT8026650A0 (it) 1980-12-15
JPS56111394A (en) 1981-09-03
US4345115A (en) 1982-08-17
CH651986A5 (de) 1985-10-15
NZ195660A (en) 1984-03-30
IT1134726B (it) 1986-08-13
DE3043906A1 (de) 1981-10-29
ZA807678B (en) 1981-12-30
SE8008587L (sv) 1981-06-14
GB2066023A (en) 1981-07-01
AU541812B2 (en) 1985-01-24
FR2472320A1 (fr) 1981-06-26
IE50882B1 (en) 1986-08-06
IE802601L (en) 1981-06-13
GB2066023B (en) 1983-11-09
AU6514980A (en) 1981-06-18

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
DNT Communications of changes of names of applicants whose applications have been laid open to public inspection

Free format text: STANDARD TELEPHONES AND CABLES PUBLIC LIMITED COMPANY

BA A request for search or an international-type search has been filed
DNT Communications of changes of names of applicants whose applications have been laid open to public inspection

Free format text: STC PLC TE LONDEN

BB A search report has been drawn up
BV The patent application has lapsed