JPS5773589A - Subscriber's circuit - Google Patents

Subscriber's circuit

Info

Publication number
JPS5773589A
JPS5773589A JP14932080A JP14932080A JPS5773589A JP S5773589 A JPS5773589 A JP S5773589A JP 14932080 A JP14932080 A JP 14932080A JP 14932080 A JP14932080 A JP 14932080A JP S5773589 A JPS5773589 A JP S5773589A
Authority
JP
Japan
Prior art keywords
resisters
subscriber
terminal
differential amplifier
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.)
Pending
Application number
JP14932080A
Other languages
English (en)
Inventor
Nobuyuki Miyahara
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP14932080A priority Critical patent/JPS5773589A/ja
Publication of JPS5773589A publication Critical patent/JPS5773589A/ja
Pending 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)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP14932080A 1980-10-27 1980-10-27 Subscriber's circuit Pending JPS5773589A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14932080A JPS5773589A (en) 1980-10-27 1980-10-27 Subscriber's circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14932080A JPS5773589A (en) 1980-10-27 1980-10-27 Subscriber's circuit

Publications (1)

Publication Number Publication Date
JPS5773589A true JPS5773589A (en) 1982-05-08

Family

ID=15472535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14932080A Pending JPS5773589A (en) 1980-10-27 1980-10-27 Subscriber's circuit

Country Status (1)

Country Link
JP (1) JPS5773589A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6094593A (ja) * 1983-09-30 1985-05-27 ミテル・コーポレーシヨン インターフエイス回路、音声データインターフエイス回路および音声データ信号を回路内でインターフエイスする方法
US4661978A (en) * 1983-12-28 1987-04-28 Nec Corporation Subscriber line interface circuit having an impedence synthesizer
US4752952A (en) * 1984-05-18 1988-06-21 Thomson-Csf Telephone Subscriber circuit link interface for an automatic telephone exchange

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54104712A (en) * 1978-02-01 1979-08-17 Mitel Canada Ltd Telephone line circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54104712A (en) * 1978-02-01 1979-08-17 Mitel Canada Ltd Telephone line circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6094593A (ja) * 1983-09-30 1985-05-27 ミテル・コーポレーシヨン インターフエイス回路、音声データインターフエイス回路および音声データ信号を回路内でインターフエイスする方法
US4661978A (en) * 1983-12-28 1987-04-28 Nec Corporation Subscriber line interface circuit having an impedence synthesizer
US4752952A (en) * 1984-05-18 1988-06-21 Thomson-Csf Telephone Subscriber circuit link interface for an automatic telephone exchange

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