发明名称 |
Data communication systems. |
摘要 |
<p>© In a data communications system an interface unit connects a device to a common communications channel shared with other devices using e.g. a carrier-sense multiple-access protocol. Individual bytes for a predetermined destination device are supplied by the device to communications controller 6 without any grouping into packets. They are then stored in a RAM 8 under control of a microcomputer 5. As soon as a byte is received, the interface unit attempts to transmit a packet; when the right to transmit is won the interface unit transmits a packet containing that and any subsequent bytes. The length of the packet therefore depends on the delay before a packet can be transmitted, and hence on the loading on the channel.</p> |
申请公布号 |
EP0117677(A2) |
申请公布日期 |
1984.09.05 |
申请号 |
EP19840300877 |
申请日期 |
1984.02.13 |
申请人 |
INTERNATIONAL COMPUTERS LIMITED |
发明人 |
RUSSELL, BRIAN MONTGOMERY |
分类号 |
H04L12/413;(IPC1-7):04L11/16 |
主分类号 |
H04L12/413 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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