GB8426439D0 - Telecommunication line circuit - Google Patents

Telecommunication line circuit

Info

Publication number
GB8426439D0
GB8426439D0 GB848426439A GB8426439A GB8426439D0 GB 8426439 D0 GB8426439 D0 GB 8426439D0 GB 848426439 A GB848426439 A GB 848426439A GB 8426439 A GB8426439 A GB 8426439A GB 8426439 D0 GB8426439 D0 GB 8426439D0
Authority
GB
United Kingdom
Prior art keywords
line circuit
telecommunication line
telecommunication
circuit
line
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.)
Granted
Application number
GB848426439A
Other versions
GB2149618A (en
GB2149618B (en
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB8426439D0 publication Critical patent/GB8426439D0/en
Publication of GB2149618A publication Critical patent/GB2149618A/en
Application granted granted Critical
Publication of GB2149618B publication Critical patent/GB2149618B/en
Expired legal-status Critical Current

Links

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
    • H04M19/005—Feeding arrangements without the use of line transformers
    • 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
    • H04M19/008—Using DC/DC converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/005—Interface circuits for subscriber lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Interface Circuits In Exchanges (AREA)
GB08426439A 1983-10-21 1984-10-19 Telecommunication line circuit and associated voltage converter Expired GB2149618B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2/60229A BE898049A (en) 1983-10-21 1983-10-21 TELECOMMUNICATION LINE CHAIN AND RELATED VOLTAGE CONVERTER.

Publications (3)

Publication Number Publication Date
GB8426439D0 true GB8426439D0 (en) 1984-11-28
GB2149618A GB2149618A (en) 1985-06-12
GB2149618B GB2149618B (en) 1987-10-21

Family

ID=3865658

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08426439A Expired GB2149618B (en) 1983-10-21 1984-10-19 Telecommunication line circuit and associated voltage converter

Country Status (5)

Country Link
AU (1) AU573271B2 (en)
BE (1) BE898049A (en)
ES (1) ES8603132A1 (en)
GB (1) GB2149618B (en)
MX (1) MX157426A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE898051A (en) * 1983-10-21 1984-04-24 Bell Telephone Mfg TELECOMMUNICATION LINE CHAIN AND RELATED POLARITY REVERSE CHAIN.
EP0201635B1 (en) * 1985-05-17 1991-12-18 BELL TELEPHONE MANUFACTURING COMPANY Naamloze Vennootschap Telecommunication line circuit
AR241567A1 (en) * 1985-07-24 1992-08-31 Siemens Ag Circuit for the suppression of perturbing signals on the reception branch line of a subscriber line circuit realized by electronic components without the use of a voice transformer
AU589718B2 (en) * 1985-12-20 1989-10-19 Alcatel N.V. Line circuit
BE905921A (en) * 1986-12-16 1987-06-16 Bell Telephone Mfg TELECOMMUNICATIONS DEVICE AND CHAINS USED THEREIN.
WO1990009703A1 (en) * 1989-02-07 1990-08-23 Alcatel N.V. Amplifier arrangement and communication line circuit using same
DE10146891C2 (en) * 2001-09-24 2003-08-14 Infineon Technologies Ag Method for transmitting charge determination signals via a data transmission path and device for voltage level generation
DE10147082C2 (en) * 2001-09-25 2003-07-31 Infineon Technologies Ag Method for transmitting charge determination signals over a data transmission path using resonance phenomena

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4419995A (en) * 1981-09-18 1983-12-13 Hochmair Ingeborg Single channel auditory stimulation system

Also Published As

Publication number Publication date
GB2149618A (en) 1985-06-12
GB2149618B (en) 1987-10-21
ES536919A0 (en) 1985-11-16
BE898049A (en) 1984-04-24
AU573271B2 (en) 1988-06-02
AU3445584A (en) 1985-04-26
MX157426A (en) 1988-11-22
ES8603132A1 (en) 1985-11-16

Similar Documents

Publication Publication Date Title
GB2102249B (en) Telephone line circuit
GB8422999D0 (en) Circuit arrangement
GB8402650D0 (en) Circuit
GB8412737D0 (en) Circuit arrangement
GB8428805D0 (en) Circuit arrangement
DE3274509D1 (en) Telephone line circuit
GB8410849D0 (en) Circuit
GB8300732D0 (en) Circuit
EP0102111A3 (en) Telephone circuit
GB8430687D0 (en) Circuit
AU570252B2 (en) Telephone circuit
GB8426439D0 (en) Telecommunication line circuit
DE3379859D1 (en) Telephone circuit
GB8411891D0 (en) Circuit
GB2146873B (en) Telephone subscriber line circuit
GB8401298D0 (en) Circuit
GB8319793D0 (en) Circuit arrangement
DE3463714D1 (en) Telecommunication terminal
GB8417490D0 (en) Telephone
GB8431596D0 (en) Destruction-prevention circuit
GB8429047D0 (en) Circuit arrangement
GB2126052B (en) Telephone circuit
AU93011S (en) Telephone
AU91335S (en) Telephone set
GB8417576D0 (en) Interface circuit

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921019