ZA727502B - Telephone subscriber equipment - Google Patents

Telephone subscriber equipment

Info

Publication number
ZA727502B
ZA727502B ZA727502A ZA727502A ZA727502B ZA 727502 B ZA727502 B ZA 727502B ZA 727502 A ZA727502 A ZA 727502A ZA 727502 A ZA727502 A ZA 727502A ZA 727502 B ZA727502 B ZA 727502B
Authority
ZA
South Africa
Prior art keywords
subscriber equipment
telephone subscriber
telephone
equipment
subscriber
Prior art date
Application number
ZA727502A
Other languages
English (en)
Inventor
C Tabalba
Original Assignee
Standard Telephones Cables Ltd
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 Standard Telephones Cables Ltd filed Critical Standard Telephones Cables Ltd
Publication of ZA727502B publication Critical patent/ZA727502B/xx

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)
ZA727502A 1971-12-09 1972-10-23 Telephone subscriber equipment ZA727502B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ZA727502B true ZA727502B (en) 1973-07-25

Family

ID=10478595

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA727502A ZA727502B (en) 1971-12-09 1972-10-23 Telephone subscriber equipment

Country Status (11)

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

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 (xx) * 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
ES409421A1 (es) 1975-12-16
IE37045B1 (en) 1977-04-27
IE37045L (en) 1973-06-09
DE2259993A1 (de) 1973-06-14
AU473401B2 (en) 1976-06-24
GB1328917A (en) 1973-09-05
FR2164377A5 (xx) 1973-07-27
US3823272A (en) 1974-07-09
CH557626A (de) 1974-12-31
BE792329A (fr) 1973-06-06
CA972887A (en) 1975-08-12
AU4919072A (en) 1974-05-23

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