BE789514A - INTEGRABLE MONOLITHIC CIRCUIT FOR TELEPHONE CONNECTION OF SUBSCRIBER STATIONS TO CENTRAL POWER SUPPLY - Google Patents

INTEGRABLE MONOLITHIC CIRCUIT FOR TELEPHONE CONNECTION OF SUBSCRIBER STATIONS TO CENTRAL POWER SUPPLY

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/en

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 INTEGRABLE MONOLITHIC CIRCUIT FOR TELEPHONE CONNECTION OF SUBSCRIBER STATIONS TO CENTRAL POWER SUPPLY BE789514A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19712148929 DE2148929B2 (en)	1971-09-30	1971-09-30	Monolithically integrable circuit arrangement for a speech circuit for centrally fed subscriber stations with a hearing amplifier and a microphone amplifier

Publications (1)

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

Family

ID=5821117

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE789514D BE789514A (en)	1971-09-30		INTEGRABLE MONOLITHIC CIRCUIT FOR TELEPHONE CONNECTION OF SUBSCRIBER STATIONS TO CENTRAL POWER SUPPLY

Country Status (11)

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

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 (en) *	1983-03-18	1985-11-14	Siemens AG, 1000 Berlin und 8000 München	Hybrid circuit for a centrally fed subscriber station
AT397325B (en) *	1992-05-25	1994-03-25	Akg Akustische Kino Geraete	CIRCUIT FORMED FROM TWO OPERATIONAL AMPLIFIERS FOR A PARTICIPANT INTERCOM

0
- BE BE789514D patent/BE789514A/en unknown
1971
- 1971-09-30 DE DE19712148929 patent/DE2148929B2/en not_active Withdrawn
1972
- 1972-08-29 CH CH1270772A patent/CH548714A/en not_active IP Right Cessation
- 1972-09-18 AT AT798472A patent/AT321374B/en 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 JP JP9763272A patent/JPS4843809A/ja active Pending
- 1972-09-28 LU LU66185D patent/LU66185A1/xx unknown
- 1972-09-28 IT IT2980272A patent/IT967956B/en active
- 1972-09-29 SE SE1266872A patent/SE381791B/en unknown

Also Published As

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

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