发明名称 |
Communication system |
摘要 |
A communication system is provided which is capable of easily setting a transmission speed between a signal transmitter and a signal receiver to carry out information communication. A transmitting device transmits one frame of measuring data which contains a start bit to be added to a head of the data and a stop bit to be added to an end of the data and which is used for a signal receiver to measure a transmission speed. A framing error detector in a receiving device receives the measuring data for detection, at every measuring point, of a framing error which occurs when a transmission speed of the signal transmitter does not coincide with a transmission speed of the signal receiver and normal detection of a stop bit is impossible and generates information about detection of a framing error. A transmission speed measurer measures a transmission speed of the transmitting device based on information about detection of a framing error and measuring point interval time.
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申请公布号 |
US7720138(B2) |
申请公布日期 |
2010.05.18 |
申请号 |
US20050131322 |
申请日期 |
2005.05.18 |
申请人 |
FUJITSU MICROELECTRONICS LIMITED |
发明人 |
MURASAWA MANABU;AOKI SEISUKE;HIRAISHI IKUO |
分类号 |
H04B3/46;H04L7/04;H03M13/00;H04L5/16;H04L25/02 |
主分类号 |
H04B3/46 |
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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