NL8006665A - Tussenschakeling voor een abonneelijn. - Google Patents

Tussenschakeling voor een abonneelijn. Download PDF

Info

Publication number: NL8006665A
Authority: NL; Netherlands
Prior art keywords: line; digital; analog; converter; circuit
Prior art date: 1979-12-13

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.)

1979-12-13

Filing date

1980-12-09

Publication date

1981-07-16

1980-12-09 Application filed by Standard Telephones Cables Ltd filed Critical Standard Telephones Cables Ltd

1981-07-16 Publication of NL8006665A publication Critical patent/NL8006665A/nl

Links

238000012544 monitoring process Methods 0.000 claims description 11
238000006243 chemical reaction Methods 0.000 claims description 7
230000002441 reversible effect Effects 0.000 claims description 7
230000011664 signaling Effects 0.000 claims description 5
238000012546 transfer Methods 0.000 claims description 2
239000000543 intermediate Substances 0.000 description 10
230000005540 biological transmission Effects 0.000 description 4
239000004065 semiconductor Substances 0.000 description 4
230000001052 transient effect Effects 0.000 description 3
230000002950 deficient Effects 0.000 description 2
238000013461 design Methods 0.000 description 2
238000000034 method Methods 0.000 description 2
238000011144 upstream manufacturing Methods 0.000 description 2
230000007547 defect Effects 0.000 description 1
238000011161 development Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000001914 filtration Methods 0.000 description 1
238000003780 insertion Methods 0.000 description 1
230000037431 insertion Effects 0.000 description 1
230000009466 transformation Effects 0.000 description 1

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
GB7943074A GB2066023B (en)	1979-12-13	1979-12-13	Telephone line interface
GB7943074		1979-12-13

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

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

1979
- 1979-12-13 GB GB7943074A patent/GB2066023B/en not_active Expired
1980
- 1980-11-21 DE DE19803043906 patent/DE3043906A1/de not_active Withdrawn
- 1980-11-27 NZ NZ195660A patent/NZ195660A/en unknown
- 1980-12-08 US US06/214,326 patent/US4345115A/en not_active Expired - Lifetime
- 1980-12-08 ZA ZA00807678A patent/ZA807678B/xx unknown
- 1980-12-08 AU AU65149/80A patent/AU541812B2/en not_active Ceased
- 1980-12-08 SE SE8008587A patent/SE8008587L/ unknown
- 1980-12-09 NL NL8006665A patent/NL8006665A/nl not_active Application Discontinuation
- 1980-12-11 JP JP17392380A patent/JPS56111394A/ja active Pending
- 1980-12-11 FR FR8026263A patent/FR2472320A1/fr active Pending
- 1980-12-12 CH CH9181/80A patent/CH651986A5/de not_active IP Right Cessation
- 1980-12-12 IE IE2601/80A patent/IE50882B1/en unknown
- 1980-12-13 EG EG771/80A patent/EG13942A/xx active
- 1980-12-15 IT IT26650/80A patent/IT1134726B/it active
1981
- 1981-09-18 BE BE2/59367A patent/BE890404R/fr not_active IP Right Cessation

Also Published As

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

Similar Documents

Publication	Publication Date	Title
CA2059055C (fr)	1997-02-04	Convertisseur a haute tension
US4349703A (en)	1982-09-14	Programmable ring signal generator
US4825349A (en)	1989-04-25	Emergency D.C. power supply with the emergency state being indicated by polarity reversal
US4239935A (en)	1980-12-16	Ringing generator
EP0137783A1 (fr)	1985-04-24	Circuit d'alimentation a batterie flottante.
EP0118545A4 (fr)	1987-03-30	Interface de ligne telephonique a modulation par largeur d'impulsion.
EP1173971A1 (fr)	2002-01-23	Bloc d'alimentation et procede pour la generation de courants de protection destines a proteger les lignes metalliques contre la corrosion
US4761812A (en)	1988-08-02	Constant power telephone line circuit
US4262172A (en)	1981-04-14	Ring-trip detector
CA1118922A (fr)	1982-02-23	Generateur de signaux universel utilise pour les signaux telephoniques de niveau eleve
WO1990008441A1 (fr)	1990-07-26	Circuit detecteur de terre
SE8703890L (sv)	1989-04-09	Anordning vid inkoppling och urkoppling av en ringsignal till en uppringd abonnet
EP0740881B1 (fr)	2003-01-02	Procede et systeme permettant de produire un signal d'appel
CH651986A5 (de)	1985-10-15	Schnittstelleneinheit fuer eine fernsprechvermittlungsanlage.
US4734937A (en)	1988-03-29	Telephone installation
CA1261495A (fr)	1989-09-26	Appareil d'adaptation de ligne
JPS60237751A (ja)	1985-11-26	ライン給電回路及び付勢電流供給方法
JPS58151160A (ja)	1983-09-08	呼出信号送出方式
RU97114621A (ru)	1999-07-10	Способ защиты от коммутационных перенапряжений электрооборудования, работающего в протяженных сетях постоянного тока и устройство для его осуществления
SU1741276A1 (ru)	1992-06-15	Устройство регулировани дистанционного электропитани
SU1075441A1 (ru)	1984-02-23	Устройство формировани и передачи вызывных сигналов по абонентским лини м
JPH09162975A (ja)	1997-06-20	呼出信号送出回路
JPS6086995A (ja)	1985-05-16	外来電流保護方式
JP3418811B2 (ja)	2003-06-23	加入者チャネル冗長切替回路
KR0132267B1 (ko)	1998-04-25	링 노이즈 방지회로

Legal Events

Date	Code	Title	Description
1985-01-01	A85	Still pending on 85-01-01
1987-10-16	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
1987-11-02	BA	A request for search or an international-type search has been filed
1987-11-16	DNT	Communications of changes of names of applicants whose applications have been laid open to public inspection	Free format text: STC PLC TE LONDEN
1988-02-01	BB	A search report has been drawn up
1988-08-01	BV	The patent application has lapsed