JPS645518B2 - - Google Patents

Info

Publication number
JPS645518B2
JPS645518B2 JP12029579A JP12029579A JPS645518B2 JP S645518 B2 JPS645518 B2 JP S645518B2 JP 12029579 A JP12029579 A JP 12029579A JP 12029579 A JP12029579 A JP 12029579A JP S645518 B2 JPS645518 B2 JP S645518B2
Authority
JP
Japan
Prior art keywords
circuit
data
output
central processing
bus
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
JP12029579A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5643896A (en
Inventor
Juichi Goto
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
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP12029579A priority Critical patent/JPS5643896A/ja
Publication of JPS5643896A publication Critical patent/JPS5643896A/ja
Publication of JPS645518B2 publication Critical patent/JPS645518B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/003—Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set, e.g. keyboard or display equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP12029579A 1979-09-18 1979-09-18 Key telephone control circuit Granted JPS5643896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12029579A JPS5643896A (en) 1979-09-18 1979-09-18 Key telephone control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12029579A JPS5643896A (en) 1979-09-18 1979-09-18 Key telephone control circuit

Publications (2)

Publication Number Publication Date
JPS5643896A JPS5643896A (en) 1981-04-22
JPS645518B2 true JPS645518B2 (enrdf_load_stackoverflow) 1989-01-31

Family

ID=14782694

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12029579A Granted JPS5643896A (en) 1979-09-18 1979-09-18 Key telephone control circuit

Country Status (1)

Country Link
JP (1) JPS5643896A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58188990A (ja) * 1982-04-28 1983-11-04 Iwatsu Electric Co Ltd ボタン電話装置の制御方式
JPS5952991A (ja) * 1982-09-18 1984-03-27 Toshiba Corp ボタン電話装置における運用デ−タ設定方式

Also Published As

Publication number Publication date
JPS5643896A (en) 1981-04-22

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