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1. 发明申请

US20080270049A1 SYSTEM AND METHOD FOR MONITORING RELIABILITY OF A DIGITAL SYSTEM 失效
标题翻译：用于监测数字系统可靠性的系统和方法
公开(公告)号：US20080270049A1
公开(公告)日：2008-10-30
申请号：US11742018
申请日：2007-04-30
申请人： Dae Ik KIM , Jonghae KIM , Moon Ju KIM , James R. MOULIC , Hong Hua SONG
发明人： Dae Ik KIM , Jonghae KIM , Moon Ju KIM , James R. MOULIC , Hong Hua SONG
IPC分类号： G01R31/00
CPC分类号： G01R31/31937 , G01R31/31725
摘要： System and method are provided for continually monitoring reliability, or aging, of a digital system and for issuing a warning signal if digital system operation degrades past a specified threshold. The technique includes implementing a ring oscillator sensor in association with the digital system, wherein logic and/or device percent composition of the ring oscillator sensor mirrors percent composition thereof within the digital system. Counter logic is coupled to the ring oscillator sensor for converting outputted count signals to an oscillation frequency, and control logic is coupled to the counter logic for periodically evaluating oscillation frequency of the ring oscillator sensor and generating a warning signal indicative of reliability degradation if at least one of: (i) a measured or estimated oscillation frequency is below a warning threshold frequency; or (ii) a measured or estimated rate of change in a difference between measured oscillation frequencies exceeds an acceptable rate of change threshold.
摘要翻译：提供系统和方法用于连续监视数字系统的可靠性或老化，并且如果数字系统操作降低到指定的阈值以上，则发出警告信号。该技术包括实现与数字系统相关联的环形振荡器传感器，其中环形振荡器传感器的逻辑和/或设备百分比组成反映数字系统内的其组成的百分比。计数器逻辑耦合到环形振荡器传感器，用于将输出的计数信号转换为振荡频率，并且控制逻辑耦合到计数器逻辑，用于周期性评估环形振荡器传感器的振荡频率，并产生指示可靠性降级的警告信号，如果至少以下之一：（i）测量或估计的振荡频率低于警告阈值频率; 或者（ii）所测量的振荡频率之间的测量或估计的变化率超过可接受的变化率阈值。

2. 发明申请

US20080253437A1 MONITORING RELIABILITY OF A DIGITAL SYSTEM 有权
标题翻译：监测数字系统的可靠性
公开(公告)号：US20080253437A1
公开(公告)日：2008-10-16
申请号：US11733318
申请日：2007-04-10
申请人： Dae Ik KIM , Jonghae KIM , Moon Ju KIM , James R. MOULIC , Hong Hua SONG
发明人： Dae Ik KIM , Jonghae KIM , Moon Ju KIM , James R. MOULIC , Hong Hua SONG
IPC分类号： H04B17/00
CPC分类号： G06F11/008
摘要： Method, system and article of manufacture are provided for continually monitoring reliability, or aging, of a digital system and for issuing a warning signal if digital system operation degrades to or past a specified threshold. The technique includes periodically determining a maximum frequency of operation of the digital system, and generating a warning signal indicative of a reliability degradation of the digital system if at least one of: (i) a measured or estimated maximum frequency of operation of the digital system is below a warning threshold frequency of operation of the digital system, wherein the warning threshold frequency is greater than or equal to a manufacturer specified minimum frequency of operation for the digital system; or (ii) a rate of change in the difference between measured maximum frequencies of operation of the digital system exceeds an acceptable rate of change threshold for the digital system.
摘要翻译：提供了方法，系统和制造品，用于连续监视数字系统的可靠性或老化，并且如果数字系统操作降低到或超过指定阈值，则发出警告信号。该技术包括周期性地确定数字系统的最大操作频率，以及产生指示数字系统的可靠性劣化的警告信号，如果以下至少一个：（i）数字系统的测量或估计的最大操作频率低于数字系统的警告阈值操作频率，其中警告阈值频率大于或等于制造商规定的数字系统的最小操作频率; 或者（ii）数字系统的测量的最大操作频率之间的差异的变化率超过数字系统的可接受的变化率阈值。

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