BE633291A - - Google Patents

Info

Publication number: BE633291A
Authority: BE; Belgium

Application number

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.)

1962-03-01

Publication of BE633291A publication Critical patent/BE633291A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/515—Devices for calling a subscriber by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of dc signals of alternating polarity, coded pulses or impedance dialling
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Interface Circuits In Exchanges (AREA)
Monitoring And Testing Of Exchanges (AREA)
Telephonic Communication Services (AREA)
Measurement Of Resistance Or Impedance (AREA)
Devices For Supply Of Signal Current (AREA)
Selective Calling Equipment (AREA)
Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

BE633291D 1962-03-01 BE633291A (it)

Applications Claiming Priority (7)

Application Number	Priority Date	Filing Date	Title
DEST18913A DE1160902B (de)	1962-03-01	1962-03-01	Unsymmetrisches Gleichstrom-Signalverfahren, insbesondere fuer die Tastwahl in Fernsprechanlagen
DEST20241A DE1173544B (de)	1962-03-01	1963-01-31	Unsymmetrisches Gleichstrom-Signalverfahren ueber zweiadrige Fernmelde-, insbesondere Fernsprechleitungen
DEST22144A DE1217460B (de)	1962-03-01	1964-05-21	Unsymmetrisches Gleichstrom-Tastwahlverfahren fuer Fernmelde-, insbesondere Fernsprechanlagen
DEST24001A DE1293873B (de)	1962-03-01	1965-06-19	Schaltungsanordnung zur Auswertung des Schleifenzustandes und zur Unterscheidung von Schleifenwiderstaenden einer Fernmelde-, insbesondere Fernsprechleitung
DEST24536A DE1278551B (de)	1962-03-01	1965-10-20	Schaltungsanordnung zur UEberwachung des Schleifenwiderstandes einer Fernmelde-, insbesondere Fernsprechleitung
DEST24545A DE1301841B (de)	1962-03-01	1965-10-22	Schaltungsanordnung zur Auswertung des Schleifenzustandes und zur Unterscheidung vonSchleifenwiderstaenden einer Fernmelde-, insbesondere Fernsprechleitung
DEST25275A DE1301373B (de)	1962-03-01	1966-04-23	Schaltungsanordnung zur Auswertung des Schleifenzustandes und zur Unterscheidung von Schleifenwiderstaenden einer Fernmelde-, insbesondere Fernsprechleitung

Publications (1)

Publication Number	Publication Date
BE633291A true BE633291A (it)

Family

ID=27561697

Family Applications (9)

Application Number	Title	Priority Date
BE633291D BE633291A (it)	1962-03-01
BE624790D BE624790A (it)	1962-03-01
BE629064D BE629064A (it)	1962-03-01
BE643215D BE643215A (it)	1962-03-01	1964-01-31
BE663512D BE663512A (it)	1962-03-01	1965-05-06
BE682672D Expired BE682672A (it)	1962-03-01	1966-06-17
BE688530D BE688530A (it)	1962-03-01	1966-10-20
BE688760D BE688760A (it)	1962-03-01	1966-10-24
BE697422D BE697422A (it)	1962-03-01	1967-04-24

Family Applications After (8)

Application Number	Title	Priority Date
BE624790D BE624790A (it)	1962-03-01
BE629064D BE629064A (it)	1962-03-01
BE643215D BE643215A (it)	1962-03-01	1964-01-31
BE663512D BE663512A (it)	1962-03-01	1965-05-06
BE682672D Expired BE682672A (it)	1962-03-01	1966-06-17
BE688530D BE688530A (it)	1962-03-01	1966-10-20
BE688760D BE688760A (it)	1962-03-01	1966-10-24
BE697422D BE697422A (it)	1962-03-01	1967-04-24

Country Status (8)

Country	Link
US (6)	US3243516A (it)
AT (2)	AT289211B (it)
BE (9)	BE643215A (it)
CH (4)	CH411053A (it)
DE (7)	DE1160902B (it)
GB (6)	GB982220A (it)
NL (7)	NL6506403A (it)
SE (2)	SE335368B (it)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1287162B (de) *	1964-08-17	1969-01-16	Int Standard Electric Corp	Verfahren und Schaltungsanordnung zur Waehlziffernuebertragung ueber eine zwei Fernsprechzentralen verbindende zweiadrige Verbindungsleitung
DE1762897B2 (de) *	1968-09-19	1971-06-03	Standard Elektrik Lorenz AG, 7000 Stutt gart	Schaltungsanordnung zur auswertung des schleifenzustandes und zur unterscheidung von schleifenwiderstaenden in einer fernmelde insbesondere fernsprechleitung
FR2036211A5 (it) *	1969-03-06	1970-12-24	Cit Alcatel
GB1290723A (it) *	1969-10-02	1972-09-27
US3778555A (en) *	1971-07-19	1973-12-11	Digital Telephone Systems Inc	Telephone subscriber line system intra call apparatus and method
US3740486A (en) *	1971-12-01	1973-06-19	Bell Telephone Labor Inc	Telephone subscriber line dial pulse detector circuit
US3889073A (en) *	1974-03-06	1975-06-10	Bell Telephone Labor Inc	Detection of series-resonant circuits connected across transmission paths
US3939308A (en) *	1974-09-27	1976-02-17	Gte Automatic Electric (Canada) Limited	Electronic side of line detector
DE2547880C2 (de) *	1975-10-25	1981-09-24	Standard Elektrik Lorenz Ag, 7000 Stuttgart	Schaltungsanordnung zur Erkennung von Betriebszuständen einer Teilnehmerleitung und zur Rufanschaltung sowie Rufabschaltung in Fernsprechvermittlungsanlagen
US4007335A (en) *	1975-11-12	1977-02-08	Bell Telephone Laboratories, Incorporated	Telephone line battery feed circuit
US4084214A (en) *	1976-05-13	1978-04-11	Ebco Industries, Ltd.	Modular housing for electronic apparatus
NL7807961A (nl) *	1978-07-27	1980-01-29	Bell Telephone Mfg	Impedantienetwerk en bewakingsketen voor een telecommu- nicatielynlus, welke dit netwerk gebruikt.
NL7904429A (nl) *	1979-06-06	1980-12-09	Philips Nv	Stroomdetectie-inrichting voor een automatische telefooncentrale.
US4292473A (en) *	1979-08-06	1981-09-29	International Standard Electric Corporation	Loop supervision circuit
US4359609A (en) *	1980-06-20	1982-11-16	Advanced Micro Devices, Inc.	Circuit with feedback for controlling the impedance thereof
DE3036685C2 (de) *	1980-09-29	1985-10-03	Siemens AG, 1000 Berlin und 8000 München	Schaltungsanordnung zur Indikation des Teilnehmerschleifenschlusses als Folge eines Rufs
US4454477A (en) *	1982-04-28	1984-06-12	At&T Bell Laboratories	Loop current detector with threshold setting impedance
US4514595A (en) *	1982-06-10	1985-04-30	Northern Telecom Limited	Active impedance line feed circuit
US4567328A (en) *	1984-05-23	1986-01-28	Burroughs Corp.	Energy detection circuit for a facsimile system controller
US4581487A (en) *	1984-07-11	1986-04-08	Itt Corporation	Universal DC feed for telephone line and trunk circuits
US10500979B1 (en) *	2017-06-30	2019-12-10	Suljo Pirija	Charging system utilizing excess grid electricity

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2278410A (en) *	1940-10-08	1942-04-07	Bell Telephone Labor Inc	Telephone system
US2306087A (en) *	1941-06-19	1942-12-22	Bell Telephone Labor Inc	Key pulsing register circuit
US2364771A (en) *	1942-05-28	1944-12-12	Bell Telephone Labor Inc	Telephone signaling system
US2400148A (en) *	1943-06-23	1946-05-14	Bell Telephone Labor Inc	Telephone call transmitting device
US2495725A (en) *	1945-06-18	1950-01-31	Standard Telephones Cables Ltd	Pulse correcting repeater
BE507213A (it) *	1950-11-21
US2823263A (en) *	1953-03-30	1958-02-11	Nederlanden Staat	Line circuit in a signalling system
NL86629C (it) *	1954-02-26
US2895012A (en) *	1957-05-28	1959-07-14	Gen Telephone Lab Inc	All trunk busy detection circuit
GB873523A (en) *	1958-07-04	1961-07-26	Ass Elect Ind	Improvements relating to potential testing circuits
US3129289A (en) *	1959-06-26	1964-04-14	Itt	Electronic line circuit
US3156778A (en) *	1959-12-24	1964-11-10	Bell Telephone Labor Inc	Supervisory circuits for telephone subscriber's line
DE1112755B (de) *	1960-09-27	1961-08-17	Arnstadt Fernmeldewerk	Schaltungsanordnung fuer Teilnehmer-schaltungen in elektronisch gesteuerten Fernsprechanlagen
BE754235A (fr) *	1969-08-05	1970-12-31	Western Electric Co	Circuit de supervision pour lignes telephoniques

0
- NL NL294136D patent/NL294136A/xx unknown
- BE BE633291D patent/BE633291A/xx unknown
- BE BE624790D patent/BE624790A/xx unknown
- BE BE629064D patent/BE629064A/xx unknown
- NL NL289634D patent/NL289634A/xx unknown
1962
- 1962-03-01 DE DEST18913A patent/DE1160902B/de active Pending
1963
- 1963-01-31 DE DEST20241A patent/DE1173544B/de active Pending
- 1963-02-22 GB GB7267/63A patent/GB982220A/en not_active Expired
- 1963-02-27 US US261267A patent/US3243516A/en not_active Expired - Lifetime
- 1963-03-01 CH CH264263A patent/CH411053A/de unknown
1964
- 1964-01-21 US US339230A patent/US3330914A/en not_active Expired - Lifetime
- 1964-01-24 GB GB3146/64A patent/GB1043643A/en not_active Expired
- 1964-01-29 CH CH101664A patent/CH416755A/de unknown
- 1964-01-31 BE BE643215D patent/BE643215A/xx unknown
- 1964-05-21 DE DEST22144A patent/DE1217460B/de active Pending
1965
- 1965-05-06 BE BE663512D patent/BE663512A/xx unknown
- 1965-05-14 GB GB20430/65A patent/GB1086775A/en not_active Expired
- 1965-05-18 CH CH693165A patent/CH434381A/de unknown
- 1965-05-20 NL NL6506403A patent/NL6506403A/xx unknown
- 1965-06-19 DE DEST24001A patent/DE1293873B/de active Pending
- 1965-10-20 DE DEST24536A patent/DE1278551B/de not_active Withdrawn
- 1965-10-22 DE DEST24545A patent/DE1301841B/de active Pending
1966
- 1966-04-23 DE DEST25275A patent/DE1301373B/de not_active Withdrawn
- 1966-06-07 US US555913A patent/US3525816A/en not_active Expired - Lifetime
- 1966-06-10 AT AT556166A patent/AT289211B/de not_active IP Right Cessation
- 1966-06-16 NL NL6608420A patent/NL6608420A/xx unknown
- 1966-06-17 GB GB27101/66A patent/GB1135785A/en not_active Expired
- 1966-06-17 BE BE682672D patent/BE682672A/xx not_active Expired
- 1966-10-13 US US586526A patent/US3515809A/en not_active Expired - Lifetime
- 1966-10-14 GB GB45945/66A patent/GB1150594A/en not_active Expired
- 1966-10-19 NL NL6614684A patent/NL6614684A/xx unknown
- 1966-10-19 SE SE14172/66A patent/SE335368B/xx unknown
- 1966-10-20 BE BE688530D patent/BE688530A/xx unknown
- 1966-10-21 NL NL6614863A patent/NL6614863A/xx unknown
- 1966-10-24 BE BE688760D patent/BE688760A/xx unknown
1967
- 1967-02-16 AT AT151667A patent/AT299330B/de not_active IP Right Cessation
- 1967-04-20 US US632312A patent/US3546392A/en not_active Expired - Lifetime
- 1967-04-20 SE SE05519/67A patent/SE358535B/xx unknown
- 1967-04-21 NL NL6705711.A patent/NL160135C/xx active
- 1967-04-21 CH CH574367A patent/CH471510A/de not_active IP Right Cessation
- 1967-04-21 GB GB18479/67A patent/GB1135786A/en not_active Expired
- 1967-04-24 BE BE697422D patent/BE697422A/xx unknown
1970
- 1970-06-02 US US00042763A patent/US3748395A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
NL6614684A (it)	1967-04-21
NL6608420A (it)	1966-12-20
NL6705711A (it)	1967-10-24
BE663512A (it)	1965-11-08
BE688760A (it)	1967-04-24
GB1150594A (en)	1969-04-30
DE1160902B (de)	1964-01-09
DE1301373B (de)	1969-08-21
AT299330B (de)	1972-06-12
US3515809A (en)	1970-06-02
US3748395A (en)	1973-07-24
DE1293873B (de)	1969-04-30
NL289634A (it)
GB982220A (en)	1965-02-03
CH411053A (de)	1966-04-15
DE1217460B (de)	1966-05-26
NL294136A (it)
BE629064A (it)
BE697422A (it)	1967-10-24
GB1086775A (en)	1967-10-11
BE643215A (it)	1964-07-31
US3546392A (en)	1970-12-08
GB1043643A (en)	1966-09-21
SE335368B (it)	1971-05-24
GB1135786A (en)	1968-12-04
US3330914A (en)	1967-07-11
CH416755A (de)	1966-07-15
BE688530A (it)	1967-04-20
NL6614863A (it)	1967-04-24
AT289211B (de)	1971-04-13
DE1278551B (de)	1968-09-26
SE358535B (it)	1973-07-30
DE1173544B (de)	1964-07-09
DE1301841B (de)	1969-08-28
NL160135C (nl)	1979-04-17
BE682672A (it)	1966-12-19
GB1135785A (en)	1968-12-04
US3243516A (en)	1966-03-29
NL6506403A (it)	1965-11-22
CH434381A (de)	1967-04-30
CH471510A (de)	1969-04-15
US3525816A (en)	1970-08-25
BE624790A (it)
NL160135B (nl)	1979-04-17

Publication	Publication Date	Title
BE616548R (it)	1962-10-17
BE380301A (it)
NL6614863A (it)	1967-04-24
BE634818A (it)
BE634373A (it)
BE634214A (it)
BE633870A (it)
BE633643A (it)
BE632672A (it)
BE632465A (it)
BE631105A (it)
BE628509A (it)
BE627921A (it)
BE620600A (it)	1962-11-16
BE616785A (it)
BE616490A (it)
BE616386A (it)
BE616166A (it)
BE615962A (it)
BE615849A (it)
BE615804A (it)
BE615523A (it)
BE538252A (it)
BE615521A (it)
BE615316A (it)