发明名称 |
Fault location system for a digital transmission line |
摘要 |
A fault location system includes a test code generator located at an end terminal for transmitting a test code sequence of signals onto a digital transmission line. A line regenerator located along the transmission line detects the test code sequence of signals. Other circuitry interconnected with the line regenerator determines and stores a number count indicating how many errors are detected in the test code sequence. In response to a polling request from a fault location circuit in the end terminal, the other circuitry storing the count indicating errors transmits that count to a fault location circuit which calculates an error rate therefrom.
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申请公布号 |
US4742518(A) |
申请公布日期 |
1988.05.03 |
申请号 |
US19860867212 |
申请日期 |
1986.05.27 |
申请人 |
AMERICAN TELEPHONE AND TELEGRAPH COMPANY, AT&T BELL LABORATORIES |
发明人 |
SHEDD, DENNIS A. |
分类号 |
H04B17/02;H04L1/24;(IPC1-7):H04B3/46 |
主分类号 |
H04B17/02 |
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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