ES362693A1 - Red de conversacion activa para instalaciones telefonicas. - Google Patents

Red de conversacion activa para instalaciones telefonicas.

Info

Publication number
ES362693A1
ES362693A1 ES362693A ES362693A ES362693A1 ES 362693 A1 ES362693 A1 ES 362693A1 ES 362693 A ES362693 A ES 362693A ES 362693 A ES362693 A ES 362693A ES 362693 A1 ES362693 A1 ES 362693A1
Authority
ES
Spain
Prior art keywords
line
terminal
receiver
terminals
amplifier
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.)
Expired
Application number
ES362693A
Other languages
English (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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Inc filed Critical Western Electric Co Inc
Publication of ES362693A1 publication Critical patent/ES362693A1/es
Expired legal-status Critical Current

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)
  • Telephonic Communication Services (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Networks Using Active Elements (AREA)
  • Amplifiers (AREA)
ES362693A 1968-01-15 1969-01-09 Red de conversacion activa para instalaciones telefonicas. Expired ES362693A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69778568A 1968-01-15 1968-01-15

Publications (1)

Publication Number Publication Date
ES362693A1 true ES362693A1 (es) 1970-12-16

Family

ID=24802527

Family Applications (1)

Application Number Title Priority Date Filing Date
ES362693A Expired ES362693A1 (es) 1968-01-15 1969-01-09 Red de conversacion activa para instalaciones telefonicas.

Country Status (7)

Country Link
US (1) US3546395A (es)
BE (1) BE726659A (es)
DE (1) DE1901337B2 (es)
ES (1) ES362693A1 (es)
FR (1) FR1604184A (es)
GB (1) GB1242312A (es)
NL (1) NL6900563A (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS495645B1 (es) * 1970-02-07 1974-02-08
JPS5211166B1 (es) * 1970-07-23 1977-03-29
GB1350205A (en) * 1970-07-24 1974-04-18 Post Office Telephone subscribers instrument circuits
JPS5148006B1 (es) * 1970-09-03 1976-12-18
US3899646A (en) * 1974-05-28 1975-08-12 Bell Telephone Labor Inc Telephone set speech network
US3952160A (en) * 1974-11-14 1976-04-20 Bell Telephone Laboratories, Incorporated Coin telephone arrangement to obviate acoustically coupled fraud
BE841105A (nl) * 1976-04-26 1976-10-26 Telekommunikatie toestel
GB1546046A (en) * 1976-12-03 1979-05-16 Cselt Centro Studi Lab Telecom Transmitting and receiving circuit for subscriber telephone sets
US4081620A (en) * 1977-05-20 1978-03-28 Bell Telephone Laboratories, Incorporated Sidetone control circuit for a telephone set
JPS5831122B2 (ja) * 1979-01-19 1983-07-04 仁 伊藤 混合回路
US4332984A (en) * 1979-12-13 1982-06-01 Bell Telephone Laboratories, Incorporated Active speech network circuit for a telephone set

Also Published As

Publication number Publication date
GB1242312A (en) 1971-08-11
FR1604184A (es) 1971-07-26
US3546395A (en) 1970-12-08
BE726659A (es) 1969-06-16
DE1901337A1 (de) 1969-07-24
NL6900563A (es) 1969-07-17
DE1901337B2 (de) 1971-06-16

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