SE7700304L - Batterikretsanordning for telefonledningar - Google Patents

Batterikretsanordning for telefonledningar

Info

Publication number
SE7700304L
SE7700304L SE7700304A SE7700304A SE7700304L SE 7700304 L SE7700304 L SE 7700304L SE 7700304 A SE7700304 A SE 7700304A SE 7700304 A SE7700304 A SE 7700304A SE 7700304 L SE7700304 L SE 7700304L
Authority
SE
Sweden
Prior art keywords
line
potentials
circuit device
central office
battery circuit
Prior art date
Application number
SE7700304A
Other languages
Unknown language ( )
English (en)
Swedish (sv)
Inventor
E C Ingle
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 SE7700304L publication Critical patent/SE7700304L/

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)
SE7700304A 1976-01-26 1977-01-13 Batterikretsanordning for telefonledningar SE7700304L (sv)

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
SE7700304L true SE7700304L (sv) 1977-07-27

Family

ID=24615324

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7700304A SE7700304L (sv) 1976-01-26 1977-01-13 Batterikretsanordning for telefonledningar

Country Status (13)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1069232A (en) * 1976-04-28 1980-01-01 Frederick J. Glenn Loop extender
US4205204A (en) * 1977-03-08 1980-05-27 Clenney Richard W Telephone loop extending apparatus
US4140881A (en) * 1977-03-08 1979-02-20 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
CN111031808A (zh) * 2017-12-22 2020-04-17 弗门尼舍有限公司 包含环己烷羧酸的酸味增强剂

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
US4024351A (en) 1977-05-17
CA1069632A (en) 1980-01-08
AU515242B2 (en) 1981-03-26
NL7700732A (nl) 1977-07-28
FR2339303A1 (fr) 1977-08-19
ES455345A1 (es) 1978-01-01
FR2339303B1 (Direct) 1981-06-19
DE2702718B2 (de) 1979-09-20
DE2702718A1 (de) 1977-08-04
AU2147877A (en) 1978-07-27
JPS5291604A (en) 1977-08-02
CH612807A5 (Direct) 1979-08-15
GB1561463A (en) 1980-02-20
IT1082519B (it) 1985-05-21
DE2702718C3 (de) 1980-06-12
BE850715A (fr) 1977-05-16
JPS5647744B2 (Direct) 1981-11-11

Similar Documents

Publication Publication Date Title
DK78678A (da) Hus for en elektrisk koblingsanordning
SE7700304L (sv) Batterikretsanordning for telefonledningar
SE7712477L (sv) Sett att astadkomma en optisk fiberkoppling
IT7828791A0 (it) Connettore elettrico con tenuta alle condizioni ambientali.
BR7801240A (pt) Circuito de alimentacao de linha telefonica com protecao
CH384665A (fr) Dispositif de connexion électrique
NL7811528A (nl) Flitslamprangschikking met elektrisch scherm.
ES447270A1 (es) Perfeccionamientos en prolongadores del alcance de lineas detransmision.
MX150471A (es) Dispositivo mejorado autoinflable,de una camara elastomerica
KR840005637A (ko) 전화 선로용 루우프 회로
FR2348580A1 (fr) Dispositif de lecture electrique d'une image optique, utilisant l'effet piezo-resistif
SE7709758L (sv) Telefonlinjekrets
JPS5393855A (en) Photo switching element
IT7826119A0 (it) Circuito di blocco della tensione di ritraccia.
KR910010952A (ko) 전화기 링 신호의 음량 조절회로
GB884832A (en) Improvements in or relating to telephone subscriber's line circuits
SU688991A1 (ru) Оптоэлектронна чейка коммутатора
JPS5354905A (en) Optical transmitting/receiving device
FR2350014A1 (fr) Circuit de poste telephonique a transmission egalisee
SU1520470A1 (ru) Устройство световых эффектов
JPS5370424A (en) Speaker protecting circuit
SE7510295L (sv) Anordning vid tradradiosystem
SU450361A1 (ru) Оптоэлектронный переключатель
BR7606053A (pt) Circuito para instalacao de comutacao em telecomunicacoes especialmente instalacoes de comutacao telefonica com buscadores para conexao de assinantes
KR910015917A (ko) 말하는 컴퓨터