JPS6070893A - ライン回路の自動成端方式 - Google Patents

ライン回路の自動成端方式

Info

Publication number
JPS6070893A
JPS6070893A JP17799683A JP17799683A JPS6070893A JP S6070893 A JPS6070893 A JP S6070893A JP 17799683 A JP17799683 A JP 17799683A JP 17799683 A JP17799683 A JP 17799683A JP S6070893 A JPS6070893 A JP S6070893A
Authority
JP
Japan
Prior art keywords
line
impedance
wire
loop resistance
termination
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
JP17799683A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0527317B2 (cg-RX-API-DMAC7.html
Inventor
Kozo Kamata
鎌田　幸蔵
Hirotoshi Shirasu
白須　宏俊
Eiichi Amada
天田　栄一
Yuichi Morikawa
森川　勇一
Hirohiko Sato
博彦 佐藤
Masaji Muranaka
村中　正次
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.)
Hitachi Ltd
NTT Inc
Original Assignee
Hitachi Ltd
Nippon Telegraph and Telephone 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 Hitachi Ltd, Nippon Telegraph and Telephone Corp filed Critical Hitachi Ltd
Priority to JP17799683A priority Critical patent/JPS6070893A/ja
Publication of JPS6070893A publication Critical patent/JPS6070893A/ja
Publication of JPH0527317B2 publication Critical patent/JPH0527317B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/005—Interface circuits for subscriber lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Interface Circuits In Exchanges (AREA)
JP17799683A 1983-09-28 1983-09-28 ライン回路の自動成端方式 Granted JPS6070893A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17799683A JPS6070893A (ja) 1983-09-28 1983-09-28 ライン回路の自動成端方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17799683A JPS6070893A (ja) 1983-09-28 1983-09-28 ライン回路の自動成端方式

Publications (2)

Publication Number Publication Date
JPS6070893A true JPS6070893A (ja) 1985-04-22
JPH0527317B2 JPH0527317B2 (cg-RX-API-DMAC7.html) 1993-04-20

Family

ID=16040716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17799683A Granted JPS6070893A (ja) 1983-09-28 1983-09-28 ライン回路の自動成端方式

Country Status (1)

Country Link
JP (1) JPS6070893A (cg-RX-API-DMAC7.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01135130A (ja) * 1987-11-19 1989-05-26 Nec Corp 符号復号器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5483498A (en) * 1977-12-16 1979-07-03 Hitachi Ltd Magnet current control circuit in mass spectrometer
JPS5580989A (en) * 1978-12-15 1980-06-18 Nec Corp Automatic balancing system for exchange
JPS56122580A (en) * 1980-03-03 1981-09-26 Hitachi Ltd Line terminating system of time division telephone switchboard
JPS56162568A (en) * 1980-05-19 1981-12-14 Fujitsu Ltd Control system for operator circuit
JPS59128892A (ja) * 1983-01-12 1984-07-25 Fujitsu Ltd 平衡回路網の自動可変方式

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5483498A (en) * 1977-12-16 1979-07-03 Hitachi Ltd Magnet current control circuit in mass spectrometer
JPS5580989A (en) * 1978-12-15 1980-06-18 Nec Corp Automatic balancing system for exchange
JPS56122580A (en) * 1980-03-03 1981-09-26 Hitachi Ltd Line terminating system of time division telephone switchboard
JPS56162568A (en) * 1980-05-19 1981-12-14 Fujitsu Ltd Control system for operator circuit
JPS59128892A (ja) * 1983-01-12 1984-07-25 Fujitsu Ltd 平衡回路網の自動可変方式

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01135130A (ja) * 1987-11-19 1989-05-26 Nec Corp 符号復号器

Also Published As

Publication number Publication date
JPH0527317B2 (cg-RX-API-DMAC7.html) 1993-04-20

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