JPS6451840A - Data bus priority transmission control system - Google Patents

Data bus priority transmission control system

Info

Publication number
JPS6451840A
JPS6451840A JP21040787A JP21040787A JPS6451840A JP S6451840 A JPS6451840 A JP S6451840A JP 21040787 A JP21040787 A JP 21040787A JP 21040787 A JP21040787 A JP 21040787A JP S6451840 A JPS6451840 A JP S6451840A
Authority
JP
Japan
Prior art keywords
packet
transmission
successful
preamble
node
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
JP21040787A
Other languages
Japanese (ja)
Other versions
JPH065840B2 (en
Inventor
Yasuhiro Ito
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
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 filed Critical NEC Corp
Priority to JP62210407A priority Critical patent/JPH065840B2/en
Publication of JPS6451840A publication Critical patent/JPS6451840A/en
Publication of JPH065840B2 publication Critical patent/JPH065840B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To improve the transmission efficiency by allowing a node successful for packet transmission to write a preamble length at successful transmission into a field provided in a packet aud sending a packet thereby sending the packet with higher priority. CONSTITUTION:A field 12 representing the preamble length is provided in the packet and a node successful to packet transmission writes a value representing the length of the preamble at the successful transmission into the field 12 of the packet to be sent and sends the result. In case of simultaneous transmission by plural nodes, the preamble length written in the packet is observed and the next priority is discriminated based on the preamble length. The node discriminating the next priority starts the transmission of the packet and the node having the lower priority holds tentatively the preamble transmission. Thus, the transmission is successful in the order of packet with higher priority and the transmission efficiency is improved.
JP62210407A 1987-08-24 1987-08-24 Data bus priority transmission control method Expired - Lifetime JPH065840B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62210407A JPH065840B2 (en) 1987-08-24 1987-08-24 Data bus priority transmission control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62210407A JPH065840B2 (en) 1987-08-24 1987-08-24 Data bus priority transmission control method

Publications (2)

Publication Number Publication Date
JPS6451840A true JPS6451840A (en) 1989-02-28
JPH065840B2 JPH065840B2 (en) 1994-01-19

Family

ID=16588806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62210407A Expired - Lifetime JPH065840B2 (en) 1987-08-24 1987-08-24 Data bus priority transmission control method

Country Status (1)

Country Link
JP (1) JPH065840B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104546A (en) * 1981-12-16 1983-06-22 Yokogawa Hokushin Electric Corp Data communication controlling system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104546A (en) * 1981-12-16 1983-06-22 Yokogawa Hokushin Electric Corp Data communication controlling system

Also Published As

Publication number Publication date
JPH065840B2 (en) 1994-01-19

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