JPS575454A - Line scanning system - Google Patents

Line scanning system

Info

Publication number
JPS575454A
JPS575454A JP8002080A JP8002080A JPS575454A JP S575454 A JPS575454 A JP S575454A JP 8002080 A JP8002080 A JP 8002080A JP 8002080 A JP8002080 A JP 8002080A JP S575454 A JPS575454 A JP S575454A
Authority
JP
Japan
Prior art keywords
line
address
scanning
nonscanning
circuit
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
JP8002080A
Other languages
Japanese (ja)
Other versions
JPS6130B2 (en
Inventor
Hideaki Chiba
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8002080A priority Critical patent/JPS575454A/en
Publication of JPS575454A publication Critical patent/JPS575454A/en
Publication of JPS6130B2 publication Critical patent/JPS6130B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/50—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE:To increase the processing ability of a communication controller, by making scanning only as to the lines started with a control program, etc. CONSTITUTION:A line address signal BAR is decoded at a decode circuit in a start address storage circuit. Among the lines instructed with start every line scanning once, nonscanning line address only is reset and after the end of scanning of the address for the entire lines instructed for start is made, a nonscanning line address storage register which newly sets the content of the said start address storage circuit is provided in a scan address control circuit, and the line address having the highest priority among the nonscanning line addresses stored in the said nonscanning line address storage register is selected with the scanning line address forming circuit and scanning is made only to the line instructed for the start.
JP8002080A 1980-06-13 1980-06-13 Line scanning system Granted JPS575454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8002080A JPS575454A (en) 1980-06-13 1980-06-13 Line scanning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8002080A JPS575454A (en) 1980-06-13 1980-06-13 Line scanning system

Publications (2)

Publication Number Publication Date
JPS575454A true JPS575454A (en) 1982-01-12
JPS6130B2 JPS6130B2 (en) 1986-01-06

Family

ID=13706605

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8002080A Granted JPS575454A (en) 1980-06-13 1980-06-13 Line scanning system

Country Status (1)

Country Link
JP (1) JPS575454A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4785298A (en) * 1985-08-14 1988-11-15 Siemens Aktiengesellschaft Circuit arrangement for telecommunications systems, particularly telephone switching systems, comprising an information interrogating device which cyclically drives inquiry locations
US4811014A (en) * 1985-08-14 1989-03-07 Siemens Aktiengesellschaft Circuit arrangement for telecommunications systems, particularly telephone switching systems, comprising information interrogating devices cyclically driving inquiry locations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4785298A (en) * 1985-08-14 1988-11-15 Siemens Aktiengesellschaft Circuit arrangement for telecommunications systems, particularly telephone switching systems, comprising an information interrogating device which cyclically drives inquiry locations
US4811014A (en) * 1985-08-14 1989-03-07 Siemens Aktiengesellschaft Circuit arrangement for telecommunications systems, particularly telephone switching systems, comprising information interrogating devices cyclically driving inquiry locations

Also Published As

Publication number Publication date
JPS6130B2 (en) 1986-01-06

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