JPS5482102A - Data communication system - Google Patents
Data communication systemInfo
- Publication number
- JPS5482102A JPS5482102A JP15015777A JP15015777A JPS5482102A JP S5482102 A JPS5482102 A JP S5482102A JP 15015777 A JP15015777 A JP 15015777A JP 15015777 A JP15015777 A JP 15015777A JP S5482102 A JPS5482102 A JP S5482102A
- Authority
- JP
- Japan
- Prior art keywords
- packet
- reception
- transmission
- station
- answer
- 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]
- H04L12/42—Loop networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
Abstract
PURPOSE:To reduce the packet transmission interval and thus to increase the data transmission velocity for the private communication of circular type by answering the adaptability for the packet reception to the transmission station from the reception station according to the state of the local buffer. CONSTITUTION:The signals extracted through circuit 10 in the reception station is supplied to reception side channel part 17 via common part 13. A collation is given between the address of corresponding communication subsystem 19 and the address in the reception packet. When a coincidence is obtained through the above collation, the answer of the packet acceptance is transmitted to the answer part of the packet through reception side indication part 14 in case the data reception buffer is not busy in system 19. Otherwise the incapability of the packet acceptance is replied if the buffer is busy. Each answer is transmitted to the transmission line from indication part 14 via common part 15, transmission side indication part 16 and circuit 12 respectively and then to be transmitted to the transmission station. Accordingly, the packet transmission interval of the transmission station becomes identical to a circulation time of the transmission line loop, thus reducing the time equivalent to one packet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15015777A JPS5482102A (en) | 1977-12-14 | 1977-12-14 | Data communication system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15015777A JPS5482102A (en) | 1977-12-14 | 1977-12-14 | Data communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5482102A true JPS5482102A (en) | 1979-06-30 |
Family
ID=15490740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15015777A Pending JPS5482102A (en) | 1977-12-14 | 1977-12-14 | Data communication system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5482102A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56147542A (en) * | 1980-04-17 | 1981-11-16 | Mitsubishi Electric Corp | Remote process input and output controller for computer |
JPS57101450A (en) * | 1980-12-17 | 1982-06-24 | Hitachi Ltd | Loop transmission system |
JPS57176861A (en) * | 1981-04-24 | 1982-10-30 | Hitachi Ltd | Terminal equipment |
JPS5887943A (en) * | 1981-11-20 | 1983-05-25 | Hitachi Ltd | Loop transmission controlling system |
JPS58114642A (en) * | 1981-12-28 | 1983-07-08 | Kokusai Denshin Denwa Co Ltd <Kdd> | Data transfer controlling system for loop-shaped common bus |
JPS61123341A (en) * | 1984-11-20 | 1986-06-11 | Nec Corp | Time divisional relay exchange system |
JPS6477247A (en) * | 1988-05-26 | 1989-03-23 | Hitachi Ltd | Loop transmission system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50120903A (en) * | 1974-03-11 | 1975-09-22 |
-
1977
- 1977-12-14 JP JP15015777A patent/JPS5482102A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50120903A (en) * | 1974-03-11 | 1975-09-22 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56147542A (en) * | 1980-04-17 | 1981-11-16 | Mitsubishi Electric Corp | Remote process input and output controller for computer |
JPS57101450A (en) * | 1980-12-17 | 1982-06-24 | Hitachi Ltd | Loop transmission system |
JPS57176861A (en) * | 1981-04-24 | 1982-10-30 | Hitachi Ltd | Terminal equipment |
JPH0217978B2 (en) * | 1981-04-24 | 1990-04-24 | Hitachi Ltd | |
JPS5887943A (en) * | 1981-11-20 | 1983-05-25 | Hitachi Ltd | Loop transmission controlling system |
JPS58114642A (en) * | 1981-12-28 | 1983-07-08 | Kokusai Denshin Denwa Co Ltd <Kdd> | Data transfer controlling system for loop-shaped common bus |
JPS61123341A (en) * | 1984-11-20 | 1986-06-11 | Nec Corp | Time divisional relay exchange system |
JPS6477247A (en) * | 1988-05-26 | 1989-03-23 | Hitachi Ltd | Loop transmission system |
JPH0424900B2 (en) * | 1988-05-26 | 1992-04-28 | Hitachi Ltd |
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