METHOD AND APPARATUS FOR LOCATING FAULTS IN ELECTRONIC UNITS
专利汇可以提供METHOD AND APPARATUS FOR LOCATING FAULTS IN ELECTRONIC UNITS专利检索，专利查询，专利分析的服务。并且An artificial intelligence based method and apparatus for locating faults in electronic units includes a technique for modelling electronic units in terms of behavioral constraints. Behavioral constraints model circuit components in terms of changes in outputs thereof which result from changes in inputs thereto. These changes, referred to as "phase changes" may be supplemented by gain and compliance constraints to model an electronic unit at all functional abstraction or hierarchical decomposition levels thereof. In addition to providing a universal modelling scheme, behavioral constraint relationships provide a highly accurate indication of subtle changes in a circuit, for accurate fault location or troubleshooting. Troubleshooting takes place by applying a predetermined search strategy on the electronic unit which is represented by behavioral constraints. The search strategy begins with a top down search. When a faulty block is found, the search moves down one functional abstraction level and searches the next lower level block having an output corresponding to the output of the higher level block. If the next lower level block is not defective, adjacent blocks at the next lower level are searched. Testing of the electronic unit is begun according to the functional test plan specified for the unit. Each functional test in the functional test plan is associated with one or more blocks at a functional abstraction level. When a functional test fails, troubleshooting begins at the block and functional abstraction level corresponding to the failed functional test.，下面是METHOD AND APPARATUS FOR LOCATING FAULTS IN ELECTRONIC UNITS专利的具体信息内容。
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