JPS5647147A - Data transmission system - Google Patents
Data transmission systemInfo
- Publication number
- JPS5647147A JPS5647147A JP12442479A JP12442479A JPS5647147A JP S5647147 A JPS5647147 A JP S5647147A JP 12442479 A JP12442479 A JP 12442479A JP 12442479 A JP12442479 A JP 12442479A JP S5647147 A JPS5647147 A JP S5647147A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- transmission
- data
- data transmission
- time
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
-
- 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
- G06F13/376—Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control using a contention resolving method, e.g. collision detection, collision avoidance
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Time-Division Multiplex Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
PURPOSE:To improve the efficiency of data transmission by shortening the time from start signal transmission to data transmission according to the priority of every terminal. CONSTITUTION:Terminal A, terminal B and center C consist of processors CPU1 and CPUs 1', control part 2 and control parts 2', transmission part 3 and transmission parts 3', reception part 4 and reception parts 4', and transmission line 5. In this case, time t1 of terminal A with higher priority is shorter than time t2 of terminal B. Therefore, since terminal A with higher priority starts transmitting data to center C via transmission line 5 in waiting time t2 of terminal B, terminal B receives data via the common line, i.e. transmission line 5 and then inhibited (masked) from sending data out. The data transmission from terminal B is enabled after the data transmission from terminal A ends. In the figure, (a) and a' are start signals, (b) and b' start bits, (c) and c' data, (d) and d' parity bits, and (e) and e' stop bits. Thus, two or more terminals never transfer data simultaneously, providing normal data transmission.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12442479A JPS5647147A (en) | 1979-09-27 | 1979-09-27 | Data transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12442479A JPS5647147A (en) | 1979-09-27 | 1979-09-27 | Data transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5647147A true JPS5647147A (en) | 1981-04-28 |
Family
ID=14885132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12442479A Pending JPS5647147A (en) | 1979-09-27 | 1979-09-27 | Data transmission system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5647147A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58161061A (en) * | 1982-03-19 | 1983-09-24 | Hitachi Ltd | Self-controlling method and device of distributed priority competition |
JPS60248045A (en) * | 1984-05-23 | 1985-12-07 | Mitsubishi Electric Corp | Optical data transmission equipment |
US4840265A (en) * | 1986-08-29 | 1989-06-20 | Kabushiki Kaisha Maki Seisakusho | Object distributing and supplying method and apparatus |
US4860882A (en) * | 1985-08-20 | 1989-08-29 | Kabushiki Kaisha Maki Seisakusho | Method and device for distributing and feeding |
JPH01298080A (en) * | 1988-05-25 | 1989-12-01 | Nissei Plan:Kk | Reinforced aerated concrete product |
JPH01298082A (en) * | 1988-05-25 | 1989-12-01 | Nissei Plan:Kk | Production of reinforced aerated concrete |
JPH01298081A (en) * | 1988-05-25 | 1989-12-01 | Nissei Plan:Kk | Strengthened gas concrete product |
JPH01298083A (en) * | 1988-05-25 | 1989-12-01 | Nissei Plan:Kk | Production of reinforced aerated concrete |
-
1979
- 1979-09-27 JP JP12442479A patent/JPS5647147A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58161061A (en) * | 1982-03-19 | 1983-09-24 | Hitachi Ltd | Self-controlling method and device of distributed priority competition |
JPH0325976B2 (en) * | 1982-03-19 | 1991-04-09 | Hitachi Ltd | |
JPS60248045A (en) * | 1984-05-23 | 1985-12-07 | Mitsubishi Electric Corp | Optical data transmission equipment |
US4860882A (en) * | 1985-08-20 | 1989-08-29 | Kabushiki Kaisha Maki Seisakusho | Method and device for distributing and feeding |
US4840265A (en) * | 1986-08-29 | 1989-06-20 | Kabushiki Kaisha Maki Seisakusho | Object distributing and supplying method and apparatus |
JPH01298080A (en) * | 1988-05-25 | 1989-12-01 | Nissei Plan:Kk | Reinforced aerated concrete product |
JPH01298082A (en) * | 1988-05-25 | 1989-12-01 | Nissei Plan:Kk | Production of reinforced aerated concrete |
JPH01298081A (en) * | 1988-05-25 | 1989-12-01 | Nissei Plan:Kk | Strengthened gas concrete product |
JPH01298083A (en) * | 1988-05-25 | 1989-12-01 | Nissei Plan:Kk | Production of reinforced aerated concrete |
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