发明名称 |
Method and system for diagnosing a fault or open circuit in a network |
摘要 |
A fault injection circuit injects a test signal into a data bus with a normal high logic level and a normal low logic level. The test signal has a greater logic level greater than the normal high logic level of the data bus or a lower logic level lower than the normal low logic level of the data bus. An analog-to-digital converter is coupled to a voltage level detector for sensing an aggregate level of an aggregate signal on the data bus. The aggregate signal is composed of the termination circuit signal and the test signal. A diagnostic tool determines whether a faulty connection between the data bus and a network device exists, where the sensed aggregate level exceeds at least one of the normal high logic level and the normal low logic level. |
申请公布号 |
US8699356(B2) |
申请公布日期 |
2014.04.15 |
申请号 |
US201113099455 |
申请日期 |
2011.05.03 |
申请人 |
SMART DAVID C.;SCHLICHTMANN MICHAEL R.;LANDMAN RONALD G.;DEERE & COMPANY |
发明人 |
SMART DAVID C.;SCHLICHTMANN MICHAEL R.;LANDMAN RONALD G. |
分类号 |
G06F11/00 |
主分类号 |
G06F11/00 |
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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