JPS55134571A - Subscriber's circuit - Google Patents

Subscriber's circuit

Info

Publication number
JPS55134571A
JPS55134571A JP4140879A JP4140879A JPS55134571A JP S55134571 A JPS55134571 A JP S55134571A JP 4140879 A JP4140879 A JP 4140879A JP 4140879 A JP4140879 A JP 4140879A JP S55134571 A JPS55134571 A JP S55134571A
Authority
JP
Japan
Prior art keywords
circuit
amplifier
subscriber
signal
constitution
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
JP4140879A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6231543B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Kunio Nagashima
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4140879A priority Critical patent/JPS55134571A/ja
Publication of JPS55134571A publication Critical patent/JPS55134571A/ja
Publication of JPS6231543B2 publication Critical patent/JPS6231543B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
JP4140879A 1979-04-05 1979-04-05 Subscriber's circuit Granted JPS55134571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4140879A JPS55134571A (en) 1979-04-05 1979-04-05 Subscriber's circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4140879A JPS55134571A (en) 1979-04-05 1979-04-05 Subscriber's circuit

Publications (2)

Publication Number Publication Date
JPS55134571A true JPS55134571A (en) 1980-10-20
JPS6231543B2 JPS6231543B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-07-09

Family

ID=12607523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4140879A Granted JPS55134571A (en) 1979-04-05 1979-04-05 Subscriber's circuit

Country Status (1)

Country Link
JP (1) JPS55134571A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
JPS6231543B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-07-09

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