JPS5859643A - ２線式ワイヤ・ライン上で両方向のベ−スバンド・デイジタル送信方式 - Google Patents

２線式ワイヤ・ライン上で両方向のベ−スバンド・デイジタル送信方式

Info

Publication number
JPS5859643A
JPS5859643A JP57123036A JP12303682A JPS5859643A JP S5859643 A JPS5859643 A JP S5859643A JP 57123036 A JP57123036 A JP 57123036A JP 12303682 A JP12303682 A JP 12303682A JP S5859643 A JPS5859643 A JP S5859643A
Authority
JP
Japan
Prior art keywords
signal
output
digital
circuit
line
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.)
Granted
Application number
JP57123036A
Other languages
English (en)
Japanese (ja)
Other versions
JPH039656B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
ジヤンフランコ・パナロツト
アドレル・トフアネリ
ルイジ・バレツト
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.)
TIM SpA
Original Assignee
CSELT Centro Studi e Laboratori Telecomunicazioni SpA
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 CSELT Centro Studi e Laboratori Telecomunicazioni SpA filed Critical CSELT Centro Studi e Laboratori Telecomunicazioni SpA
Publication of JPS5859643A publication Critical patent/JPS5859643A/ja
Publication of JPH039656B2 publication Critical patent/JPH039656B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H04B3/235—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers combined with adaptive equaliser
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1423—Two-way operation using the same type of signal, i.e. duplex for simultaneous baseband signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H04B3/238—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers using initial training sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Transmitters (AREA)
JP57123036A 1981-07-16 1982-07-16 ２線式ワイヤ・ライン上で両方向のベ−スバンド・デイジタル送信方式 Granted JPS5859643A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT68023-A/81 1981-07-16
IT8168023A IT1144423B (it) 1981-07-23 1981-07-23 Sistema per la trasmissione numerica bidirezionale in banda su linea a due fili

Publications (2)

Publication Number Publication Date
JPS5859643A true JPS5859643A (ja) 1983-04-08
JPH039656B2 JPH039656B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-02-08

Family

ID=11307265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57123036A Granted JPS5859643A (ja) 1981-07-16 1982-07-16 ２線式ワイヤ・ライン上で両方向のベ−スバンド・デイジタル送信方式

Country Status (4)

Country Link
EP (1) EP0071192A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5859643A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1144423B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO822531L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1184949B (it) * 1985-05-14 1987-10-28 Sip Perfezionamento ai sistemi per la trasmissione numerica bidirezionale con cancellazione d eco
GB8616873D0 (en) * 1986-07-10 1986-08-20 British Telecomm Optical telecommunications system
US5353305A (en) * 1988-06-17 1994-10-04 Fujitsu Limited Initial training apparatus for use in a transmitter and receiver apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE416367B (sv) * 1976-09-07 1980-12-15 Western Electric Co Ekoelimineringsanordning
GB2041702A (en) * 1979-02-01 1980-09-10 Standard Telephones Cables Ltd Digital transmission systems

Also Published As

Publication number Publication date
IT1144423B (it) 1986-10-29
IT8168023A0 (it) 1981-07-23
JPH039656B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-02-08
EP0071192A1 (en) 1983-02-09
NO822531L (no) 1983-01-24

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