发明名称 |
Signal transmission system with an error control technique |
摘要 |
A signal transmission system embodying this invention which can control errors comprises a selective automatic repeat request (ARQ) system for controlling errors occurring in transmission of data on telephone data communication channels. With this selective ARQ system, an error-controlling signal conducted through a backward channel does not contain a check bit for detection or correction of errors, thereby preventing a time loss which might occur if a error-control signal was repeatedly issued between the transmission and receiving sides. The subject signal-transmitting apparatus is adapted to be used in a static image transmission having a large amount of data and has such a circuit arrangement as attains the efficient transmission of data and the display of an error-free image of good picture quality.
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申请公布号 |
US4149142(A) |
申请公布日期 |
1979.04.10 |
申请号 |
US19770826053 |
申请日期 |
1977.08.19 |
申请人 |
TOKYO SHIBAURA ELECTRIC CO., LTD. |
发明人 |
KAGEYAMA, SATOSHI;TAKEUCHI, KEIJI;OGI, KEISUKE |
分类号 |
H03M7/00;H04J1/00;H04L1/16;H04L1/18;H04N1/32;H04N7/00;H04N7/26;(IPC1-7):G08C25/02 |
主分类号 |
H03M7/00 |
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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