发明名称 |
DATA TRANSMISSION SYSTEM |
摘要 |
<p>A data transmission system using a continuous ARQ system, wherein a block (word) synchronization code is transmitted through a transmission line from a transmitter to a receiver repeatedly at a predetermined time interval, until the transmitter receives a signal (ACK) denoting the detection of the synchronization code from the receiver. Upon receipt of the synchronization code detection signal, the transmitter issues data blocks each having a fixed length to the receiver continuously from the point of time at which the succeeding synchronization code is to be transmitted. In the invention a predetermined number of test data blocks are further transmitted to the receiver in succession to the synchronization code. The receiver examines a block error rate concerning the test data blocks and supplies the transmitter with not only the synchronization code detection signal but also a data rate-specifying signal. The transmitter delivers data at a rate dependent on the data rate-specifying signal.</p> |
申请公布号 |
CA1061912(A) |
申请公布日期 |
1979.09.04 |
申请号 |
CA19770270880 |
申请日期 |
1977.01.31 |
申请人 |
TOKYO SHIBAURA ELECTRIC CO., LTD. |
发明人 |
KAGEYAMA, SATOSHI;SEKIYA, KUNIHIKO |
分类号 |
H04L1/00;H04L1/16;H04L1/18;H04L7/00;H04L7/10;H04L29/08;(IPC1-7):04L7/00;06F1/04 |
主分类号 |
H04L1/00 |
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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