BE838697A - TELECOMMUNICATION CIRCUITS AND ORGANS USING HALL EFFECT DEVICES - Google Patents

TELECOMMUNICATION CIRCUITS AND ORGANS USING HALL EFFECT DEVICES

Info

Publication number: BE838697A
Authority: BE; Belgium
Prior art keywords: organs; hall effect; effect devices; telecommunication circuits; telecommunication
Prior art date: 1975-02-20

Application number

BE2054835A

Other languages

French (fr)

Inventor

R Kitajewski

A W Sweet

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.)

1975-02-20

Filing date

1976-02-19

Publication date

1976-08-19

1976-02-19 Application filed filed Critical

1976-08-19 Publication of BE838697A publication Critical patent/BE838697A/en

Links

230000005355 Hall effect Effects 0.000 title 1
210000000056 organ Anatomy 0.000 title 1

Classifications

- 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

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Control Of Eletrric Generators (AREA)
Fire-Detection Mechanisms (AREA)
Spectrometry And Color Measurement (AREA)
Lubrication Of Internal Combustion Engines (AREA)
Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Monitoring And Testing Of Exchanges (AREA)

BE2054835A 1975-02-20 1976-02-19 TELECOMMUNICATION CIRCUITS AND ORGANS USING HALL EFFECT DEVICES BE838697A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB715875A GB1478219A (en)	1975-02-20	1975-02-20	Telecommunication exchange circuits

Publications (1)

Publication Number	Publication Date
BE838697A true BE838697A (en)	1976-08-19

Family

ID=9827726

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE2054835A BE838697A (en)	1975-02-20	1976-02-19	TELECOMMUNICATION CIRCUITS AND ORGANS USING HALL EFFECT DEVICES

Country Status (7)

Country	Link
BE (1)	BE838697A (en)
BR (1)	BR7507715A (en)
ES (1)	ES445388A1 (en)
FR (1)	FR2301982A1 (en)
GB (1)	GB1478219A (en)
IT (1)	IT1055300B (en)
NO (1)	NO144404C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2013000A (en) *	1978-01-20	1979-08-01	Hitachi Ltd Dc	D.C. magnetic field cancellation circuit
GB2146872B (en) *	1983-09-15	1986-11-05	Stc Plc	Hall effect module for loop detector
US5333192A (en) *	1990-06-26	1994-07-26	Northern Telecom Limited	Line interface circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1158584B (en) *	1962-08-16	1963-12-05	Telefunken Patent	Circuit arrangement for checking the call and occupancy status of subscriber lines in telecommunication systems, in particular telephone switching systems, with the aid of Hall generators
US3848094A (en) *	1972-12-29	1974-11-12	Stromberg Carlson Corp	Telephone battery feed circuit

1975
- 1975-02-20 GB GB715875A patent/GB1478219A/en not_active Expired
- 1975-11-21 BR BR7507715*A patent/BR7507715A/en unknown
1976
- 1976-02-16 NO NO760488A patent/NO144404C/en unknown
- 1976-02-17 IT IT20225/76A patent/IT1055300B/en active
- 1976-02-19 BE BE2054835A patent/BE838697A/en unknown
- 1976-02-20 FR FR7604734A patent/FR2301982A1/en not_active Withdrawn
- 1976-02-20 ES ES445388A patent/ES445388A1/en not_active Expired

Also Published As

Publication number	Publication date
ES445388A1 (en)	1977-06-16
BR7507715A (en)	1976-08-24
IT1055300B (en)	1981-12-21
FR2301982A1 (en)	1976-09-17
NO144404C (en)	1981-08-19
GB1478219A (en)	1977-06-29
NO144404B (en)	1981-05-11
NO760488L (en)	1976-09-01

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