JPS5730441A - Control system for acquisition of right of transmission - Google Patents

Control system for acquisition of right of transmission

Info

Publication number
JPS5730441A
JPS5730441A JP10482180A JP10482180A JPS5730441A JP S5730441 A JPS5730441 A JP S5730441A JP 10482180 A JP10482180 A JP 10482180A JP 10482180 A JP10482180 A JP 10482180A JP S5730441 A JPS5730441 A JP S5730441A
Authority
JP
Japan
Prior art keywords
time
request signal
terminal
transmission
turned
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
JP10482180A
Other languages
Japanese (ja)
Other versions
JPS6340382B2 (en
Inventor
Hitoo Onawa
Hiroshi Asami
Tsutomu Matsumoto
Tatsushi Miura
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 JP10482180A priority Critical patent/JPS5730441A/en
Publication of JPS5730441A publication Critical patent/JPS5730441A/en
Publication of JPS6340382B2 publication Critical patent/JPS6340382B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F13/36—Handling requests for interconnection or transfer for access to common bus or bus system
    • G06F13/368—Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control

Abstract

PURPOSE:To eliminate the influence of the difference in the rising time of a request signal during group polling, by holding a request signal during polling for as long as the time of the operation delay timing of each terminal. CONSTITUTION:A timer TM measures an elapse time from when a transmission request signal RS is turned on, and holds the RS turned on for as long as the time of the operation delay timing of each terminal equipment. A prescribed time later, the TM sends a transmission permit signal CS to a control part, which judges whether the CS is to be trnsferred to a low-periority device. The RS from each terminal is delayed individually, so the RSs from all terminals overlap mutually even when they are generated at the same time, so that a high-priority station judges adequately whether the CS should be sent to the low-priority station.
JP10482180A 1980-07-30 1980-07-30 Control system for acquisition of right of transmission Granted JPS5730441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10482180A JPS5730441A (en) 1980-07-30 1980-07-30 Control system for acquisition of right of transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10482180A JPS5730441A (en) 1980-07-30 1980-07-30 Control system for acquisition of right of transmission

Publications (2)

Publication Number Publication Date
JPS5730441A true JPS5730441A (en) 1982-02-18
JPS6340382B2 JPS6340382B2 (en) 1988-08-10

Family

ID=14391058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10482180A Granted JPS5730441A (en) 1980-07-30 1980-07-30 Control system for acquisition of right of transmission

Country Status (1)

Country Link
JP (1) JPS5730441A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4763323A (en) * 1985-10-18 1988-08-09 Minnesota Mining And Manufacturing Company Communication system for the transfer of small digital message blocks and large digital message blocks

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5632855A (en) * 1979-08-27 1981-04-02 Fujitsu Ltd Control circuit for right of transmission

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5632855A (en) * 1979-08-27 1981-04-02 Fujitsu Ltd Control circuit for right of transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4763323A (en) * 1985-10-18 1988-08-09 Minnesota Mining And Manufacturing Company Communication system for the transfer of small digital message blocks and large digital message blocks

Also Published As

Publication number Publication date
JPS6340382B2 (en) 1988-08-10

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