CH557626A - Telefonteilnehmer-apparat mit elektronischem uebertragungsstromkreis. - Google Patents

Telefonteilnehmer-apparat mit elektronischem uebertragungsstromkreis.

Info

Publication number
CH557626A
CH557626A CH1787872A CH1787872A CH557626A CH 557626 A CH557626 A CH 557626A CH 1787872 A CH1787872 A CH 1787872A CH 1787872 A CH1787872 A CH 1787872A CH 557626 A CH557626 A CH 557626A
Authority
CH
Switzerland
Prior art keywords
transmission circuit
electronic transmission
telephone subscriber
subscriber apparatus
telephone
Prior art date
Application number
CH1787872A
Other languages
English (en)
Original Assignee
Int 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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of CH557626A publication Critical patent/CH557626A/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits
    • H04M1/585—Anti-side-tone circuits implemented without inductive element

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
CH1787872A 1971-12-09 1972-12-08 Telefonteilnehmer-apparat mit elektronischem uebertragungsstromkreis. CH557626A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5719671 1971-12-09

Publications (1)

Publication Number Publication Date
CH557626A true CH557626A (de) 1974-12-31

Family

ID=10478595

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1787872A CH557626A (de) 1971-12-09 1972-12-08 Telefonteilnehmer-apparat mit elektronischem uebertragungsstromkreis.

Country Status (11)

Country Link
US (1) US3823272A (de)
AU (1) AU473401B2 (de)
BE (1) BE792329A (de)
CA (1) CA972887A (de)
CH (1) CH557626A (de)
DE (1) DE2259993A1 (de)
ES (1) ES409421A1 (de)
FR (1) FR2164377A5 (de)
GB (1) GB1328917A (de)
IE (1) IE37045B1 (de)
ZA (1) ZA727502B (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1406663A (en) * 1972-08-22 1975-09-17 Standard Telephones Cables Ltd Telphone subset circuits
NL7307296A (de) * 1973-05-25 1974-11-27
US4031331A (en) * 1976-01-15 1977-06-21 Northern Electric Company Limited Telephone speech network
BE841105A (nl) * 1976-04-26 1976-10-26 Telekommunikatie toestel
JPS5356903A (en) * 1976-11-02 1978-05-23 Nippon Telegr & Teleph Corp <Ntt> Automatic level control circuit for telephone set
GB1546046A (en) * 1976-12-03 1979-05-16 Cselt Centro Studi Lab Telecom Transmitting and receiving circuit for subscriber telephone sets
US4071713A (en) * 1976-12-27 1978-01-31 Northern Telecom Limited Telephone speech network
JPS53105105A (en) * 1977-02-24 1978-09-13 San Terehon Kk Semiconductor telephone set
US4303805A (en) * 1979-05-21 1981-12-01 United Networks, Inc. Subscriber station network
US4400589A (en) * 1979-05-21 1983-08-23 United Networks, Inc. Subscriber station network
US4326109A (en) * 1980-04-11 1982-04-20 Northern Telecom Limited Apparatus for coupling a two-way transmission path to a one-way transmitting path and a one-way receiving path
DE3014187C2 (de) * 1980-04-14 1983-11-17 Nixdorf Computer Ag, 4790 Paderborn Schaltungsanordnung zum zweidrähtigen Anschluß eines Fernsprechteilnehmers an je eine Leitung für angehende und ankommende Signale
DE3019835C2 (de) * 1980-05-23 1983-12-01 Siemens AG, 1000 Berlin und 8000 München Übertragerfreie Gabelschaltung
GB8317706D0 (en) * 1983-06-29 1983-08-03 Standard Telephones Cables Ltd Telephone subsets

Also Published As

Publication number Publication date
DE2259993A1 (de) 1973-06-14
GB1328917A (en) 1973-09-05
US3823272A (en) 1974-07-09
BE792329A (fr) 1973-06-06
AU4919072A (en) 1974-05-23
ZA727502B (en) 1973-07-25
FR2164377A5 (de) 1973-07-27
IE37045B1 (en) 1977-04-27
CA972887A (en) 1975-08-12
IE37045L (en) 1973-06-09
ES409421A1 (es) 1975-12-16
AU473401B2 (en) 1976-06-24

Similar Documents

Publication Publication Date Title
BE778599A (fr) Connecteur pour circuits imprimés
SE386344B (sv) Krets for uppehallande av en samtalsforbindelse pa en kommunikationslinje.
CH557626A (de) Telefonteilnehmer-apparat mit elektronischem uebertragungsstromkreis.
CH549916A (de) Schaltungsanordnung fuer fernsprechteilnehmer-anschlussleitungen mit zwei symmetrischen doppelleitungen fuer zusaetzliche zeichenuebertragung, insbesondere fuer bilduebertragung.
NL162810B (nl) Telecommunicatienet.
NL7402575A (nl) Elektronisch telefoontoestel.
CH550520A (de) Fernsprechteilnehmerschaltung.
NL155700B (nl) Luidsprekende telefooninrichting.
CA954991A (en) Subscriber loop circuit apparatus
BE788085A (fr) Circuit de maintien de ligne telephonique
ES214229Y (es) Un dispositivo conectador electrico.
SE386048B (sv) Elektronisk, tidsuppdelad telefonvexel
AT315251B (de) Fernsprech-Handapparat
AU4603872A (en) Telephone circuits
NL157763B (nl) Digitaal telecommunicatie-transmissiestelsel.
CH542556A (de) Schaltungsanordnung zur Tastung von Zweidraht-Einfachstromkreisen
AU461789B2 (en) Input circuit foran automatic telephone answering device
CH553519A (de) Fernschreibmaschine mit aus elektronischen schaltungen gebildetem empfaenger.
CA938040A (en) Telephone subscriber line circuit
ES170445Y (es) Comprobador de unidad de aparato telefonico de abonado.
BR7203431D0 (pt) Equipamento telefonico
GB1371063A (en) Telephone index devices
CA870836A (en) Line circuit scanner for electronic telephone systems
CA859254A (en) Subscriber telephone circuit
CH519833A (de) Fernschreibmaschine mit elektronischer Empfangsschaltung

Legal Events

Date Code Title Description
PL Patent ceased