GB2315188B - Power supply system for telephone line wires - Google Patents

Power supply system for telephone line wires

Info

Publication number
GB2315188B
GB2315188B GB9614401A GB9614401A GB2315188B GB 2315188 B GB2315188 B GB 2315188B GB 9614401 A GB9614401 A GB 9614401A GB 9614401 A GB9614401 A GB 9614401A GB 2315188 B GB2315188 B GB 2315188B
Authority
GB
United Kingdom
Prior art keywords
power supply
supply system
telephone line
line wires
wires
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
GB9614401A
Other versions
GB2315188A (en
GB9614401D0 (en
Inventor
Francis Charles Hackett-Jones
Philip Rushton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telspec Europe Ltd
Telspec PLC
Original Assignee
Telspec Europe Ltd
Telspec PLC
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.)
Filing date
Publication date
Application filed by Telspec Europe Ltd, Telspec PLC filed Critical Telspec Europe Ltd
Priority to GB9614401A priority Critical patent/GB2315188B/en
Publication of GB9614401D0 publication Critical patent/GB9614401D0/en
Priority to ZA9606101A priority patent/ZA966101B/en
Priority to PCT/GB1997/001844 priority patent/WO1998001990A2/en
Priority to AU34532/97A priority patent/AU3453297A/en
Publication of GB2315188A publication Critical patent/GB2315188A/en
Application granted granted Critical
Publication of GB2315188B publication Critical patent/GB2315188B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0435—Details
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1308—Power supply
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13216—Code signals, frame structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13302—Magnetic elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
GB9614401A 1996-07-09 1996-07-09 Power supply system for telephone line wires Expired - Fee Related GB2315188B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB9614401A GB2315188B (en) 1996-07-09 1996-07-09 Power supply system for telephone line wires
ZA9606101A ZA966101B (en) 1996-07-09 1997-07-09 Power supply system for telephone line wires.
PCT/GB1997/001844 WO1998001990A2 (en) 1996-07-09 1997-07-09 Power supply system for telephone line wires
AU34532/97A AU3453297A (en) 1996-07-09 1997-07-09 Power supply system for telephone line wires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9614401A GB2315188B (en) 1996-07-09 1996-07-09 Power supply system for telephone line wires

Publications (3)

Publication Number Publication Date
GB9614401D0 GB9614401D0 (en) 1996-09-04
GB2315188A GB2315188A (en) 1998-01-21
GB2315188B true GB2315188B (en) 1999-04-14

Family

ID=10796610

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9614401A Expired - Fee Related GB2315188B (en) 1996-07-09 1996-07-09 Power supply system for telephone line wires

Country Status (4)

Country Link
AU (1) AU3453297A (en)
GB (1) GB2315188B (en)
WO (1) WO1998001990A2 (en)
ZA (1) ZA966101B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7535966B2 (en) 2004-08-17 2009-05-19 Adaptive Spectrum And Signal Alignment, Inc. DSL data collection system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2071461A (en) * 1980-02-14 1981-09-16 Standard Telephones Cables Ltd Telephone line feed
WO1984000459A1 (en) * 1982-07-06 1984-02-02 Ericsson Telefon Ab L M A method for current supply to a subscriber telephone from a telephone exchange
US4800589A (en) * 1986-10-24 1989-01-24 Sgs-Thomson Microelettronica S.P.A. Voltage regulator control circuit for a subscriber line interface circuit
EP0446944A2 (en) * 1990-03-16 1991-09-18 Fujitsu Limited Feed circuit in exchanger

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4808905A (en) * 1986-08-05 1989-02-28 Advanced Micro Devices, Inc. Current-limiting circuit
JPH0626358B2 (en) * 1989-08-11 1994-04-06 日本電気エンジニアリング株式会社 Power supply voltage control circuit
EP0450884B1 (en) * 1990-04-04 1996-06-12 Seiscor Technologies, Inc. A subscriber line interface circuit providing regulated current
JPH04157996A (en) * 1990-10-22 1992-05-29 Nec Corp Feeding system for key service unit
JPH05252286A (en) * 1992-03-03 1993-09-28 Matsushita Electric Ind Co Ltd Line terminal equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2071461A (en) * 1980-02-14 1981-09-16 Standard Telephones Cables Ltd Telephone line feed
WO1984000459A1 (en) * 1982-07-06 1984-02-02 Ericsson Telefon Ab L M A method for current supply to a subscriber telephone from a telephone exchange
US4800589A (en) * 1986-10-24 1989-01-24 Sgs-Thomson Microelettronica S.P.A. Voltage regulator control circuit for a subscriber line interface circuit
EP0446944A2 (en) * 1990-03-16 1991-09-18 Fujitsu Limited Feed circuit in exchanger

Also Published As

Publication number Publication date
AU3453297A (en) 1998-02-02
WO1998001990A2 (en) 1998-01-15
WO1998001990A3 (en) 1998-03-05
ZA966101B (en) 1998-03-03
GB2315188A (en) 1998-01-21
GB9614401D0 (en) 1996-09-04

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070709