JPS556918A - Polling control system - Google Patents

Polling control system

Info

Publication number
JPS556918A
JPS556918A JP7869978A JP7869978A JPS556918A JP S556918 A JPS556918 A JP S556918A JP 7869978 A JP7869978 A JP 7869978A JP 7869978 A JP7869978 A JP 7869978A JP S556918 A JPS556918 A JP S556918A
Authority
JP
Japan
Prior art keywords
polling
terminal
unit
signal
chinese character
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
JP7869978A
Other languages
Japanese (ja)
Inventor
Yasuo Miwa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7869978A priority Critical patent/JPS556918A/en
Publication of JPS556918A publication Critical patent/JPS556918A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/22—Handling requests for interconnection or transfer for access to input/output bus using successive scanning, e.g. polling

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Bus Control (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To eliminate the unnecessary polling time for the terminal unit which requires no polling, and thus to enhance the service efficiency for the terminal unit requiring the polling. CONSTITUTION:Central unit 200 incorporating, for example, terminal units #1- #n (Chinese character printers), the memory memorizing the Chinese character patterns and CPU is provided along with polling control unit 100. Then the signal shwoing the necessity for the polling is transmitted from units #1-#n, and then the polling cycle is formed via unit 100 for the terminal requiring the polling and indicated so by the signal. Thus, the polling is carried out in sequence.
JP7869978A 1978-06-30 1978-06-30 Polling control system Pending JPS556918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7869978A JPS556918A (en) 1978-06-30 1978-06-30 Polling control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7869978A JPS556918A (en) 1978-06-30 1978-06-30 Polling control system

Publications (1)

Publication Number Publication Date
JPS556918A true JPS556918A (en) 1980-01-18

Family

ID=13669108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7869978A Pending JPS556918A (en) 1978-06-30 1978-06-30 Polling control system

Country Status (1)

Country Link
JP (1) JPS556918A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56107661A (en) * 1980-01-30 1981-08-26 Shinko Electric Co Ltd Data transmission control system of multidrop system
JPS58121845A (en) * 1982-01-14 1983-07-20 Meidensha Electric Mfg Co Ltd Cyclic data transfer device
JPS59182651A (en) * 1983-03-31 1984-10-17 Fujitsu Ltd Information transmission system
JPS6053358A (en) * 1983-09-02 1985-03-27 Fujitsu Ltd Polling control method
JPS60103845A (en) * 1983-11-11 1985-06-08 Mitsubishi Electric Corp Simple type data transmission equipment
JPH0252538A (en) * 1988-08-16 1990-02-22 Omron Tateisi Electron Co Bus type lan

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56107661A (en) * 1980-01-30 1981-08-26 Shinko Electric Co Ltd Data transmission control system of multidrop system
JPS58121845A (en) * 1982-01-14 1983-07-20 Meidensha Electric Mfg Co Ltd Cyclic data transfer device
JPS59182651A (en) * 1983-03-31 1984-10-17 Fujitsu Ltd Information transmission system
JPS6053358A (en) * 1983-09-02 1985-03-27 Fujitsu Ltd Polling control method
JPS60103845A (en) * 1983-11-11 1985-06-08 Mitsubishi Electric Corp Simple type data transmission equipment
JPH0252538A (en) * 1988-08-16 1990-02-22 Omron Tateisi Electron Co Bus type lan

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