IT1123890B - TRANSMISSION BRIDGE FOR A TELEPHONE USER LINE CIRCUIT - Google Patents

TRANSMISSION BRIDGE FOR A TELEPHONE USER LINE CIRCUIT

Info

Publication number: IT1123890B
Authority: IT; Italy
Prior art keywords: line circuit; telephone user; user line; transmission bridge; bridge
Prior art date: 1978-10-20

Application number

IT26572/79A

Other languages

Italian (it)

Other versions

IT7926572A0 (en

Inventor

Eise Carel Dijkmans

Original Assignee

Philips Nv

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.)

1978-10-20

Filing date

1979-10-17

Publication date

1986-04-30

1979-10-17 Application filed by Philips Nv filed Critical Philips Nv

1979-10-17 Publication of IT7926572A0 publication Critical patent/IT7926572A0/en

1986-04-30 Application granted granted Critical

1986-04-30 Publication of IT1123890B publication Critical patent/IT1123890B/en

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/001—Current supply source at the exchanger providing current to substations

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Devices For Supply Of Signal Current (AREA)
Interface Circuits In Exchanges (AREA)
Amplifiers (AREA)
Confectionery (AREA)

IT26572/79A 1978-10-20 1979-10-17 TRANSMISSION BRIDGE FOR A TELEPHONE USER LINE CIRCUIT IT1123890B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7810504A NL7810504A (en)	1978-10-20	1978-10-20	POWER BRIDGE FOR A SUBSCRIBER FLOW.

Publications (2)

Publication Number	Publication Date
IT7926572A0 IT7926572A0 (en)	1979-10-17
IT1123890B true IT1123890B (en)	1986-04-30

Family

ID=19831748

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT26572/79A IT1123890B (en)	1978-10-20	1979-10-17	TRANSMISSION BRIDGE FOR A TELEPHONE USER LINE CIRCUIT

Country Status (10)

Country	Link
JP (1)	JPS5912065B2 (en)
AU (1)	AU5188879A (en)
BE (1)	BE879495A (en)
CA (1)	CA1138140A (en)
DE (1)	DE2941981C2 (en)
FR (1)	FR2439519A1 (en)
GB (1)	GB2034557B (en)
IT (1)	IT1123890B (en)
NL (1)	NL7810504A (en)
SE (1)	SE434790B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4551670A (en) *	1984-04-19	1985-11-05	At&T Bell Laboratories	Circuit for maintaining the DC voltage on an electrically isolated telecommunication line at a reference level

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE883300C (en) *	1945-03-21	1953-07-16	Aeg	Dialer device with additions to the power supply for intercom stations that are equipped with amplifiers
GB1070901A (en) *	1963-01-03	1967-06-07	Post Office	Improvements in or relating to telephone exchange systems
BE793240A (en) *	1971-12-27	1973-04-16	Western Electric Co	REDUCED INSERTION LOSS COUPLER
US4007335A (en) *	1975-11-12	1977-02-08	Bell Telephone Laboratories, Incorporated	Telephone line battery feed circuit

1978
- 1978-10-20 NL NL7810504A patent/NL7810504A/en not_active Application Discontinuation
1979
- 1979-09-28 FR FR7924174A patent/FR2439519A1/en not_active Withdrawn
- 1979-10-17 IT IT26572/79A patent/IT1123890B/en active
- 1979-10-17 DE DE2941981A patent/DE2941981C2/en not_active Expired
- 1979-10-17 CA CA000337849A patent/CA1138140A/en not_active Expired
- 1979-10-17 GB GB7936047A patent/GB2034557B/en not_active Expired
- 1979-10-17 AU AU51888/79A patent/AU5188879A/en not_active Abandoned
- 1979-10-17 SE SE7908577A patent/SE434790B/en unknown
- 1979-10-17 JP JP54133062A patent/JPS5912065B2/en not_active Expired
- 1979-10-18 BE BE0/197711A patent/BE879495A/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
JPS5556755A (en)	1980-04-25
CA1138140A (en)	1982-12-21
JPS5912065B2 (en)	1984-03-21
FR2439519A1 (en)	1980-05-16
GB2034557B (en)	1982-12-01
SE7908577L (en)	1980-04-21
IT7926572A0 (en)	1979-10-17
AU5188879A (en)	1980-04-24
GB2034557A (en)	1980-06-04
NL7810504A (en)	1980-04-22
SE434790B (en)	1984-08-13
DE2941981C2 (en)	1983-04-21
BE879495A (en)	1980-04-18
DE2941981A1 (en)	1980-04-30

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