发明名称 |
A PROCESS AND DEVICE TO MEASURE THE SIGNAL QUALITY OF A DIGITAL INFORMATION TRANSMISSION SYSTEM |
摘要 |
The process to measure the signal quality of a digital information transmission system using a scanning device with adjustable direct current threshold can determine a signal parameter for the signal quality (Q-factor), which can determine the bit-rate from an unknown input signal and with its help a clock signal can be generated to scan the input signal with the scanning device. The device includes a detection device as well as a clock generator, which is connected to the detection device and receives a pre-adjustment signal, and which synchronises with the input signal over a phase locked loop with the scanning device through phase comparison. Process and device allow the monitoring of systems in a shortest time and facilitate statements concerning the bit-rate of the respective line section as well as concerning the size of the Q-factor and all relating variables.
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申请公布号 |
CA2287642(A1) |
申请公布日期 |
2000.05.02 |
申请号 |
CA19992287642 |
申请日期 |
1999.10.27 |
申请人 |
WAVETEK WANDEL GOLTERMANN ENINGEN GMBH |
发明人 |
HOYER, WOLFGANG;DOLLINGER, HELMUT;BACH, ROLAND |
分类号 |
H04L12/56;H03L7/07;H04L1/20;(IPC1-7):H04L12/26 |
主分类号 |
H04L12/56 |
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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