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1. 发明授权

US08301414B2 Compactor independent fault diagnosis 有权
标题翻译：压实机独立故障诊断
公开(公告)号：US08301414B2
公开(公告)日：2012-10-30
申请号：US11772648
申请日：2007-07-02
申请人： Wu-Tung Cheng , Kun-Han Tsai , Yu Huang , Nagesh Tamarapalli , Janusz Rajski
发明人： Wu-Tung Cheng , Kun-Han Tsai , Yu Huang , Nagesh Tamarapalli , Janusz Rajski
IPC分类号： G06F11/30 , G01R31/28
CPC分类号： G01R31/318547 , G06F11/267
摘要： Methods, apparatus, and systems for performing fault diagnosis are disclosed herein. In certain disclosed embodiments, methods for diagnosing faults from compressed test responses are provided. For example, in one exemplary embodiment, a circuit description of an at least partially scan-based circuit-under-test and a compactor for compacting test responses captured in the circuit-under-test is received. A transformation function performed by the compactor to the test responses captured in the circuit-under-test is determined. A diagnostic procedure for evaluating uncompressed test responses is modified into a modified diagnostic procedure that incorporates the transformation function therein. Computer-readable media comprising computer-executable instructions for causing a computer to perform any of the disclosed methods are also provided. Likewise, computer-readable media comprising lists of fault candidates identified by any of the disclosed methods or circuit descriptions created or modified by the disclosed methods are provided.
摘要翻译：本文公开了用于执行故障诊断的方法，装置和系统。在某些公开的实施例中，提供了用于从压缩测试响应诊断故障的方法。例如，在一个示例性实施例中，接收至少部分基于扫描的测试电路和压实器的电路描述，用于压缩在待测电路中捕获的测试响应。确定由压实机对被测电路中捕获的测试响应执行的变换功能。用于评估未压缩测试响应的诊断程序被修改为并入其中的变换功能的修改的诊断过程。还提供了包括用于使计算机执行任何所公开的方法的计算机可执行指令的计算机可读介质。同样地，提供了包括通过由所公开的方法创建或修改的任何公开的方法或电路描述所识别的故障候选列表的计算机可读介质。

2. 发明授权

US07239978B2 Compactor independent fault diagnosis 有权
标题翻译：压实机独立故障诊断
公开(公告)号：US07239978B2
公开(公告)日：2007-07-03
申请号：US10925230
申请日：2004-08-23
申请人： Wu-Tung Cheng , Kun-Han Tsai , Yu Huang , Nagesh Tamarapalli , Janusz Rajski
发明人： Wu-Tung Cheng , Kun-Han Tsai , Yu Huang , Nagesh Tamarapalli , Janusz Rajski
IPC分类号： G06F11/30 , G01R31/28
CPC分类号： G01R31/318547 , G06F11/267
摘要： Methods, apparatus, and systems for performing fault diagnosis are disclosed herein. In certain disclosed embodiments, methods for diagnosing faults from compressed test responses are provided. For example, in one exemplary embodiment, a circuit description of an at least partially scan-based circuit-under-test and a compactor for compacting test responses captured in the circuit-under-test is received. A transformation function performed by the compactor to the test responses captured in the circuit-under-test is determined. A diagnostic procedure for evaluating uncompressed test responses is modified into a modified diagnostic procedure that incorporates the transformation function therein. Computer-readable media comprising computer-executable instructions for causing a computer to perform any of the disclosed methods are also provided. Likewise, computer-readable media comprising lists of fault candidates identified by any of the disclosed methods or circuit descriptions created or modified by the disclosed methods are provided.
摘要翻译：本文公开了用于执行故障诊断的方法，装置和系统。在某些公开的实施例中，提供了用于从压缩测试响应诊断故障的方法。例如，在一个示例性实施例中，接收至少部分基于扫描的测试电路和压实器的电路描述，用于压缩在待测电路中捕获的测试响应。确定由压实机对被测电路中捕获的测试响应执行的变换功能。用于评估未压缩测试响应的诊断程序被修改为并入其中的变换功能的修改的诊断过程。还提供了包括用于使计算机执行任何所公开的方法的计算机可执行指令的计算机可读介质。同样地，提供了包括通过由所公开的方法创建或修改的任何公开的方法或电路描述所识别的故障候选列表的计算机可读介质。

3. 发明申请

US20070283202A1 COMPACTOR INDEPENDENT FAULT DIAGNOSIS 有权
标题翻译：压力计独立故障诊断
公开(公告)号：US20070283202A1
公开(公告)日：2007-12-06
申请号：US11772648
申请日：2007-07-02
申请人： Wu-Tung Cheng , Kun-Han Tsai , Yu Huang , Nagesh Tamarapalli , Janusz Rajski
发明人： Wu-Tung Cheng , Kun-Han Tsai , Yu Huang , Nagesh Tamarapalli , Janusz Rajski
IPC分类号： G01R31/28
CPC分类号： G01R31/318547 , G06F11/267
摘要： Methods, apparatus, and systems for performing fault diagnosis are disclosed herein. In certain disclosed embodiments, methods for diagnosing faults from compressed test responses are provided. For example, in one exemplary embodiment, a circuit description of an at least partially scan-based circuit-under-test and a compactor for compacting test responses captured in the circuit-under-test is received. A transformation function performed by the compactor to the test responses captured in the circuit-under-test is determined. A diagnostic procedure for evaluating uncompressed test responses is modified into a modified diagnostic procedure that incorporates the transformation function therein. Computer-readable media comprising computer-executable instructions for causing a computer to perform any of the disclosed methods are also provided. Likewise, computer-readable media comprising lists of fault candidates identified by any of the disclosed methods or circuit descriptions created or modified by the disclosed methods are provided.
摘要翻译：本文公开了用于执行故障诊断的方法，装置和系统。在某些公开的实施例中，提供了用于从压缩测试响应诊断故障的方法。例如，在一个示例性实施例中，接收至少部分基于扫描的测试电路和压实器的电路描述，用于压缩在待测电路中捕获的测试响应。确定由压实机对被测电路中捕获的测试响应执行的变换功能。用于评估未压缩测试响应的诊断程序被修改为并入其中的变换功能的修改的诊断过程。还提供了包括用于使计算机执行任何所公开的方法的计算机可执行指令的计算机可读介质。同样地，提供了包括通过由所公开的方法创建或修改的任何公开的方法或电路描述所识别的故障候选列表的计算机可读介质。

4. 发明申请

US20050222816A1 Compactor independent fault diagnosis 有权
标题翻译：压实机独立故障诊断
公开(公告)号：US20050222816A1
公开(公告)日：2005-10-06
申请号：US10925230
申请日：2004-08-23
申请人： Wu-Tung Cheng , Kun-Han Tsai , Yu Huang , Nagesh Tamarapalli , Janusz Rajski
发明人： Wu-Tung Cheng , Kun-Han Tsai , Yu Huang , Nagesh Tamarapalli , Janusz Rajski
IPC分类号： G06F11/30 , G06F15/00
CPC分类号： G01R31/318547 , G06F11/267
摘要： Methods, apparatus, and systems for performing fault diagnosis are disclosed herein. In certain disclosed embodiments, methods for diagnosing faults from compressed test responses are provided. For example, in one exemplary embodiment, a circuit description of an at least partially scan-based circuit-under-test and a compactor for compacting test responses captured in the circuit-under-test is received. A transformation function performed by the compactor to the test responses captured in the circuit-under-test is determined. A diagnostic procedure for evaluating uncompressed test responses is modified into a modified diagnostic procedure that incorporates the transformation function therein. Computer-readable media comprising computer-executable instructions for causing a computer to perform any of the disclosed methods are also provided. Likewise, computer-readable media comprising lists of fault candidates identified by any of the disclosed methods or circuit descriptions created or modified by the disclosed methods are provided.
摘要翻译：本文公开了用于执行故障诊断的方法，装置和系统。在某些公开的实施例中，提供了用于从压缩测试响应诊断故障的方法。例如，在一个示例性实施例中，接收至少部分基于扫描的测试电路和压实器的电路描述，用于压缩在待测电路中捕获的测试响应。确定由压实机对被测电路中捕获的测试响应执行的变换功能。用于评估未压缩测试响应的诊断程序被修改为并入其中的变换功能的修改的诊断过程。还提供了包括用于使计算机执行任何所公开的方法的计算机可执行指令的计算机可读介质。同样地，提供了包括通过由所公开的方法创建或修改的任何公开的方法或电路描述所识别的故障候选列表的计算机可读介质。

5. 发明授权

US08438438B2 Enhanced diagnosis with limited failure cycles 有权
公开(公告)号：US08438438B2
公开(公告)日：2013-05-07
申请号：US12948460
申请日：2010-11-17
申请人： Yu Huang , Wu-Tung Cheng , Nagesh Tamarapalli , Randy Klingenberg , Janusz Rajski
发明人： Yu Huang , Wu-Tung Cheng , Nagesh Tamarapalli , Randy Klingenberg , Janusz Rajski
IPC分类号： G01R31/28
CPC分类号： G01R31/3177 , G01R31/318569
摘要： Chain or logic diagnosis resolution can be enhanced in the presence of limited failure cycles using embodiments of the various methods, systems, and apparatus described herein. For example, pattern sets can be ordered according to a diagnosis coverage figure, which can be used to measure chain or logic diagnosability of the pattern set. Per-pin based diagnosis techniques can also be used to analyze limited failure data.

6. 发明申请

US20110126064A1 ENHANCED DIAGNOSIS WITH LIMITED FAILURE CYCLES 有权
标题翻译：增强诊断有缺陷的循环
公开(公告)号：US20110126064A1
公开(公告)日：2011-05-26
申请号：US12948460
申请日：2010-11-17
申请人： Yu Huang , Wu-Tung Cheng , Nagesh Tamarapalli , Janusz Rajski , Randy Klingenberg
发明人： Yu Huang , Wu-Tung Cheng , Nagesh Tamarapalli , Janusz Rajski , Randy Klingenberg
IPC分类号： G01R31/3177 , G06F11/25
CPC分类号： G01R31/3177 , G01R31/318569
摘要： Chain or logic diagnosis resolution can be enhanced in the presence of limited failure cycles using embodiments of the various methods, systems, and apparatus described herein. For example, pattern sets can be ordered according to a diagnosis coverage figure, which can be used to measure chain or logic diagnosability of the pattern set. Per-pin based diagnosis techniques can also be used to analyze limited failure data.
摘要翻译：使用本文描述的各种方法，系统和装置的实施例，可以在存在有限故障循环的情况下增强链或逻辑诊断分辨率。例如，可以根据诊断覆盖率对图案集进行排序，这可以用于测量图案集的链或逻辑诊断。基于引脚的诊断技术也可用于分析有限的故障数据。

7. 发明授权

US07840862B2 Enhanced diagnosis with limited failure cycles 有权
标题翻译：增强诊断有限的故障周期
公开(公告)号：US07840862B2
公开(公告)日：2010-11-23
申请号：US11510079
申请日：2006-08-25
申请人： Yu Huang , Wu-Tung Cheng , Nagesh Tamarapalli , Randy Klingenberg , Janusz Rajski
发明人： Yu Huang , Wu-Tung Cheng , Nagesh Tamarapalli , Randy Klingenberg , Janusz Rajski
IPC分类号： G01R31/28
CPC分类号： G01R31/3177 , G01R31/318569
摘要： Chain or logic diagnosis resolution can be enhanced in the presence of limited failure cycles using embodiments of the various methods, systems, and apparatus described herein. For example, pattern sets can be ordered according to a diagnosis coverage figure, which can be used to measure chain or logic diagnosability of the pattern set. Per-pin based diagnosis techniques can also be used to analyze limited failure data.
摘要翻译：使用本文描述的各种方法，系统和装置的实施例，可以在存在有限故障循环的情况下增强链或逻辑诊断分辨率。例如，可以根据诊断覆盖率对图案集进行排序，这可以用于测量图案集的链或逻辑诊断。基于引脚的诊断技术也可用于分析有限的故障数据。

8. 发明申请

US20070220381A1 Enhanced diagnosis with limited failure cycles 有权
标题翻译：增强诊断有限的故障周期
公开(公告)号：US20070220381A1
公开(公告)日：2007-09-20
申请号：US11510079
申请日：2006-08-25
申请人： Yu Huang , Wu-Tung Cheng , Nagesh Tamarapalli , Randy Klingenberg , Janusz Rajski
发明人： Yu Huang , Wu-Tung Cheng , Nagesh Tamarapalli , Randy Klingenberg , Janusz Rajski
IPC分类号： G01R31/28
CPC分类号： G01R31/3177 , G01R31/318569
摘要： Chain or logic diagnosis resolution can be enhanced in the presence of limited failure cycles using embodiments of the various methods, systems, and apparatus described herein. For example, pattern sets can be ordered according to a diagnosis coverage figure, which can be used to measure chain or logic diagnosability of the pattern set. Per-pin based diagnosis techniques can also be used to analyze limited failure data.
摘要翻译：使用本文描述的各种方法，系统和装置的实施例，可以在存在有限故障循环的情况下增强链或逻辑诊断分辨率。例如，可以根据诊断覆盖率对图案集进行排序，这可以用于测量图案集的链或逻辑诊断。基于引脚的诊断技术也可用于分析有限的故障数据。

9. 发明授权

US07653851B2 Phase shifter with reduced linear dependency 有权
标题翻译：移相器具有减少的线性依赖性
公开(公告)号：US07653851B2
公开(公告)日：2010-01-26
申请号：US12412267
申请日：2009-03-26
申请人： Janusz Rajski , Jerzy Tyszer , Nagesh Tamarapalli
发明人： Janusz Rajski , Jerzy Tyszer , Nagesh Tamarapalli
IPC分类号： G01R31/28
CPC分类号： G01R31/318541 , G01R31/31813 , G01R31/318385 , G01R31/318547 , G01R31/318594
摘要： A method is disclosed for the automated synthesis of phase shifters—circuits used to remove effects of structural dependencies featured by pseudo-random test pattern generators driving parallel scan chains. Using a concept of duality, the method relates the logical states of linear feedback shift registers (LFSRs) and circuits spacing their inputs to each of the output channels. The method generates a phase shifter network balancing the loads of successive stages of LFSRs and satisfying criteria of reduced linear dependency, channel separation and circuit complexity.
摘要翻译：公开了用于自动合成移相器的方法，该移相器用于消除驱动并行扫描链的伪随机测试图形发生器所特征的结构依赖性的影响。使用二元性概念，该方法涉及线性反馈移位寄存器（LFSR）的逻辑状态和将输入间隔到每个输出通道的电路。该方法产生平衡LFSR的连续级的负载的移相器网络，并且满足减少的线性依赖性，信道分离和电路复杂度的标准。

10. 发明授权

US07523372B2 Phase shifter with reduced linear dependency 有权
标题翻译：移相器具有减少的线性依赖性
公开(公告)号：US07523372B2
公开(公告)日：2009-04-21
申请号：US11895845
申请日：2007-08-27
申请人： Janusz Rajski , Jerzy Tyszer , Nagesh Tamarapalli
发明人： Janusz Rajski , Jerzy Tyszer , Nagesh Tamarapalli
IPC分类号： G01R31/28
CPC分类号： G01R31/318541 , G01R31/31813 , G01R31/318385 , G01R31/318547 , G01R31/318594
摘要： A method is disclosed for the automated synthesis of phase shifters. Phase shifters comprise circuits used to remove effects of structural dependencies featured by pseudo-random test pattern generators driving parallel scan chains. Using a concept of duality, the method relates the logical states of linear feedback shift registers (LFSRs) and circuits spacing their inputs to each of the output channels. The method generates a phase shifter network balancing the loads of successive stages of LFSRs and satisfying criteria of reduced linear dependency, channel separation and circuit complexity.
摘要翻译：公开了用于自动合成移相器的方法。移相器包括用于消除驱动并行扫描链的伪随机测试图形发生器特征的结构依赖性的影响的电路。使用二元性概念，该方法涉及线性反馈移位寄存器（LFSR）的逻辑状态和将输入间隔到每个输出通道的电路。该方法产生平衡LFSR的连续级的负载的移相器网络，并且满足减少的线性依赖性，信道分离和电路复杂度的标准。

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