BE789514A - Circuit monolithique integrable pour branchement telephonique de postesd'abonne a alimentation centrale - Google Patents

Circuit monolithique integrable pour branchement telephonique de postesd'abonne a alimentation centrale

Info

Publication number: BE789514A
Authority: BE; Belgium
Prior art keywords: integrable; power supply; subscriber stations; telephone connection; central power
Prior art date: 1971-09-30

Application number

Other languages

Original Assignee

Siemens Ag

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.)

1971-09-30

Publication date

1973-03-29

1973-03-29 Publication of BE789514A publication Critical patent/BE789514A/fr

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/58—Anti-side-tone circuits
- H04M1/585—Anti-side-tone circuits implemented without inductive element

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Amplifiers (AREA)
Devices For Supply Of Signal Current (AREA)

BE789514D 1971-09-30 Circuit monolithique integrable pour branchement telephonique de postesd'abonne a alimentation centrale BE789514A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19712148929 DE2148929B2 (de)	1971-09-30	1971-09-30	Monolithisch integrierbare Schaltungsanordnung für eine Sprechschaltung für zentralgespeiste Teilnehmerstationen mit einem Hörverstärker und einem Mikrofonverstärker

Publications (1)

Publication Number	Publication Date
BE789514A true BE789514A (fr)	1973-03-29

Family

ID=5821117

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE789514D BE789514A (fr)	1971-09-30		Circuit monolithique integrable pour branchement telephonique de postesd'abonne a alimentation centrale

Country Status (11)

Country	Link
JP (1)	JPS4843809A (fr)
AT (1)	AT321374B (fr)
BE (1)	BE789514A (fr)
CH (1)	CH548714A (fr)
DE (1)	DE2148929B2 (fr)
FR (1)	FR2155372A5 (fr)
GB (1)	GB1407216A (fr)
IT (1)	IT967956B (fr)
LU (1)	LU66185A1 (fr)
NL (1)	NL7213094A (fr)
SE (1)	SE381791B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4071713A (en) *	1976-12-27	1978-01-31	Northern Telecom Limited	Telephone speech network
DE3309822C2 (de) *	1983-03-18	1985-11-14	Siemens AG, 1000 Berlin und 8000 München	Gabelschaltung für eine zentralgespeiste Teilnehmerstation
AT397325B (de) *	1992-05-25	1994-03-25	Akg Akustische Kino Geraete	Aus zwei operationsverstärkern gebildete schaltung für eine teilnehmersprechstelle

0
- BE BE789514D patent/BE789514A/fr unknown
1971
- 1971-09-30 DE DE19712148929 patent/DE2148929B2/de not_active Withdrawn
1972
- 1972-08-29 CH CH1270772A patent/CH548714A/xx not_active IP Right Cessation
- 1972-09-18 AT AT798472A patent/AT321374B/de active
- 1972-09-21 GB GB4370672A patent/GB1407216A/en not_active Expired
- 1972-09-27 FR FR7234097A patent/FR2155372A5/fr not_active Expired
- 1972-09-27 NL NL7213094A patent/NL7213094A/xx unknown
- 1972-09-28 IT IT2980272A patent/IT967956B/it active
- 1972-09-28 LU LU66185D patent/LU66185A1/xx unknown
- 1972-09-28 JP JP9763272A patent/JPS4843809A/ja active Pending
- 1972-09-29 SE SE1266872A patent/SE381791B/xx unknown

Also Published As

Publication number	Publication date
SE381791B (sv)	1975-12-15
FR2155372A5 (fr)	1973-05-18
NL7213094A (fr)	1973-04-03
CH548714A (de)	1974-04-30
IT967956B (it)	1974-03-11
DE2148929A1 (de)	1973-04-05
GB1407216A (en)	1975-09-24
AT321374B (de)	1975-03-25
LU66185A1 (fr)	1973-01-17
JPS4843809A (fr)	1973-06-25
DE2148929B2 (de)	1974-06-06

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