发明名称 |
DATA TRANSMISSION SYSTEM FOR A LOCAL NETWORK |
摘要 |
<p>A local network, in which a plurality of data processors are coupled by modems to a communication medium, is disclosed. Each modem is arranged to shift a carrier frequency to a first and second frequency according to a digital signal from the associated data processor. In order to provide for reliable and quick detection of a collision of signals simultaneously transmitted from a plurality of modems to the communication medium, the difference between the first and second frequencies is set such that one cycle of a beat signal generated on the communication medium due to a collision of signals is not longer than one bit time length of the digital signal.</p> |
申请公布号 |
CA1204164(A) |
申请公布日期 |
1986.05.06 |
申请号 |
CA19830443870 |
申请日期 |
1983.12.21 |
申请人 |
TOKYO SHIBAURA DENKI KABUSHIKI KAISHA |
发明人 |
KOBAYASHI, HIROSHI;HIROSE, TSUGUHIRO;HARUYAMA, HIDEAKI |
分类号 |
H04B3/10;H04L12/28;H04L27/10;(IPC1-7):H04B1/40 |
主分类号 |
H04B3/10 |
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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