BE850715A - Dispositif d'extention de la portee d'une ligne par l'emploi d'une batterie d'appoint - Google Patents

Dispositif d'extention de la portee d'une ligne par l'emploi d'une batterie d'appoint

Info

Publication number
BE850715A
BE850715A BE174348A BE174348A BE850715A BE 850715 A BE850715 A BE 850715A BE 174348 A BE174348 A BE 174348A BE 174348 A BE174348 A BE 174348A BE 850715 A BE850715 A BE 850715A
Authority
BE
Belgium
Prior art keywords
extension
range
line
backup battery
backup
Prior art date
Application number
BE174348A
Other languages
English (en)
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of BE850715A publication Critical patent/BE850715A/fr

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
    • H04M19/006—Circuits for increasing the range of current supply source

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
BE174348A 1976-01-26 1977-01-25 Dispositif d'extention de la portee d'une ligne par l'emploi d'une batterie d'appoint BE850715A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/652,051 US4024351A (en) 1976-01-26 1976-01-26 Telephone line battery boost circuit

Publications (1)

Publication Number Publication Date
BE850715A true BE850715A (fr) 1977-05-16

Family

ID=24615324

Family Applications (1)

Application Number Title Priority Date Filing Date
BE174348A BE850715A (fr) 1976-01-26 1977-01-25 Dispositif d'extention de la portee d'une ligne par l'emploi d'une batterie d'appoint

Country Status (13)

Country Link
US (1) US4024351A (fr)
JP (1) JPS5291604A (fr)
AU (1) AU515242B2 (fr)
BE (1) BE850715A (fr)
CA (1) CA1069632A (fr)
CH (1) CH612807A5 (fr)
DE (1) DE2702718C3 (fr)
ES (1) ES455345A1 (fr)
FR (1) FR2339303A1 (fr)
GB (1) GB1561463A (fr)
IT (1) IT1082519B (fr)
NL (1) NL7700732A (fr)
SE (1) SE7700304L (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1069232A (fr) * 1976-04-28 1980-01-01 Frederick J. Glenn Dispositif d'extension de boucle
US4140881A (en) * 1977-03-08 1979-02-20 Clenney Richard W Telephone loop extending apparatus
US4205204A (en) * 1977-03-08 1980-05-27 Clenney Richard W Telephone loop extending apparatus
JPS55105485A (en) * 1979-02-07 1980-08-13 Nec Corp Trunk circuit of automatic telephone exchange
JPS55141937A (en) * 1979-04-23 1980-11-06 Nippon Electric Co Power supply circuit
DE3542407A1 (de) * 1985-11-30 1987-06-04 Kabelmetal Electro Gmbh Schaltungsanordnung zur uebertragung nachrichtentechnischer signale
US20200305483A1 (en) * 2017-12-22 2020-10-01 Firmenich Sa Sourness enhancers comprising a cyclohexanecarboxylic acid

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781480A (en) * 1970-11-10 1973-12-25 Wescom Loop extender
US3763320A (en) * 1971-10-20 1973-10-02 Lorain Prod Corp Voltage booster circuit having test-through characteristics
US3898389A (en) * 1972-10-18 1975-08-05 Communic Mfg Voltage and/or current-sensitive loop extender
US3852536A (en) * 1973-05-16 1974-12-03 Lorain Prod Corp Test-through voltage booster circuit for telephone systems
US3906162A (en) * 1974-07-30 1975-09-16 Communic Mfg Loop extender with bypass capacitor discharge

Also Published As

Publication number Publication date
DE2702718C3 (de) 1980-06-12
FR2339303B1 (fr) 1981-06-19
AU515242B2 (en) 1981-03-26
DE2702718A1 (de) 1977-08-04
JPS5647744B2 (fr) 1981-11-11
FR2339303A1 (fr) 1977-08-19
IT1082519B (it) 1985-05-21
JPS5291604A (en) 1977-08-02
SE7700304L (sv) 1977-07-27
CH612807A5 (fr) 1979-08-15
US4024351A (en) 1977-05-17
DE2702718B2 (de) 1979-09-20
NL7700732A (nl) 1977-07-28
AU2147877A (en) 1978-07-27
ES455345A1 (es) 1978-01-01
CA1069632A (fr) 1980-01-08
GB1561463A (en) 1980-02-20

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: WESTERN ELECTRIC CY INC.

Effective date: 19850125