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1. 发明申请

US20080077355A1 METHODS AND SYSTEMS FOR STATISTICAL BASED MONITORING AND POWER MANAGEMENT 失效
标题翻译：用于统计监测和电力管理的方法和系统
公开(公告)号：US20080077355A1
公开(公告)日：2008-03-27
申请号：US11533860
申请日：2006-09-21
申请人： David C. Casler , Joan L. Mitchell , Piet C. De Groen
发明人： David C. Casler , Joan L. Mitchell , Piet C. De Groen
IPC分类号： G06F19/00 , G06F17/11
CPC分类号： G06Q10/10 , G06Q50/26
摘要： Embodiments of the present invention provide devices and techniques for detecting anomalies in monitored environments. In one embodiment of the invention, data may be acquired by monitoring an environmental variable. Based on the acquired data, statistics may be calculated which model the behavior of the environmental variable. Based on the calculated statistics, a long-term behavior and a short-term behavior of the statistics may also be calculated. A difference between the long-term statistics and the short-term statistics may then be calculated. If the difference between the long-term statistical behavior and short-term statistical behavior exceeds a dynamic or predefined threshold, an action may be taken.
摘要翻译：本发明的实施例提供了用于检测被监视环境中的异常的设备和技术。在本发明的一个实施例中，可以通过监视环境变量来获取数据。根据所获得的数据，可以计算哪个模型对环境变量的行为进行统计。根据计算的统计，也可以计算统计的长期行为和短期行为。然后可以计算长期统计数据和短期统计数据之间的差额。如果长期统计行为与短期统计行为之间的差异超过动态或预定义的阈值，则可采取行动。

2. 发明授权

US08024156B2 Using statistics to locate signals in noise 失效
标题翻译：使用统计信息来定位噪声信号
公开(公告)号：US08024156B2
公开(公告)日：2011-09-20
申请号：US12825882
申请日：2010-06-29
申请人： David C. Casler , Joan L. Mitchell
发明人： David C. Casler , Joan L. Mitchell
IPC分类号： H04L7/00
CPC分类号： H04N19/60 , H04N19/80 , H04N19/85
摘要： Computation of variance or variance of the autocorrelation over a moving window of various sizes of a signal containing noise and possibly a small digital signal provides a sensitive, frequency independent indication of the likelihood of the presence of a small pulse, chirp or even spread spectrum digital signal possibly obscured by noise or larger signals in the signal to much lower signal-to-noise ratios than previously possible. Large signals in the signal which may also obscure any small signal are removed to a different signal path from the noise and small signals by subtraction after compression and reconstruction of the large signal. The compression noise thus added to the signal may also increase sensitivity of the variance of the autocorrelation to small signals obscured by the large signals. Controlling storage in response to the computed variance or variance of the autocorrelation allows substantial avoidance or limitation of storage of signals which contain only noise.
摘要翻译：在包含噪声的信号和可能的小数字信号的各种尺寸的移动窗口上的自相关的方差或方差的计算提供了存在小脉冲，啁啾或甚至扩频数字的可能性的灵敏的，频率独立的指示信号可能被噪声或信号中较大的信号遮蔽，比以前可能要低得多的信噪比。也可能模糊任何小信号的信号中的大信号通过在压缩和重建大信号之后通过减法从噪声和小信号中除去到不同的信号路径。因此，加到信号上的压缩噪声也可能增加自相关方差对由大信号遮蔽的小信号的敏感度。响应于所计算的自相关的方差或方差来控制存储允许基本上避免或限制仅包含噪声的信号的存储。

3. 发明申请

US20100268510A1 Using Statistics to Locate Signals in Noise 失效
标题翻译：使用统计来定位噪声信号
公开(公告)号：US20100268510A1
公开(公告)日：2010-10-21
申请号：US12825882
申请日：2010-06-29
申请人： David C. Casler , Joan L. Mitchell
发明人： David C. Casler , Joan L. Mitchell
IPC分类号： G06F17/18 , G06F15/00
CPC分类号： H04N19/60 , H04N19/80 , H04N19/85
摘要： Computation of variance or variance of the autocorrelation over a moving window of various sizes of a signal containing noise and possibly a small digital signal provides a sensitive, frequency independent indication of the likelihood of the presence of a small pulse, chirp or even spread spectrum digital signal possibly obscured by noise or larger signals in the signal to much lower signal-to-noise ratios than previously possible. Large signals in the signal which may also obscure any small signal are removed to a different signal path from the noise and small signals by subtraction after compression and reconstruction of the large signal. The compression noise thus added to the signal may also increase sensitivity of the variance of the autocorrelation to small signals obscured by the large signals. Controlling storage in response to the computed variance or variance of the autocorrelation allows substantial avoidance or limitation of storage of signals which contain only noise.
摘要翻译：在包含噪声的信号和可能的小数字信号的各种尺寸的移动窗口上的自相关的方差或方差的计算提供了存在小脉冲，啁啾或甚至扩频数字的可能性的灵敏的，频率独立的指示信号可能被噪声或信号中较大的信号遮蔽，比以前可能要低得多的信噪比。也可能模糊任何小信号的信号中的大信号通过在压缩和重建大信号之后通过减法从噪声和小信号中除去到不同的信号路径。因此，加到信号上的压缩噪声也可能增加自相关方差对由大信号遮蔽的小信号的敏感度。响应于所计算的自相关的方差或方差来控制存储允许基本上避免或限制仅包含噪声的信号的存储。

4. 发明授权

US07869980B2 Using statistics to locate signals in noise 有权
公开(公告)号：US07869980B2
公开(公告)日：2011-01-11
申请号：US11265512
申请日：2005-11-03
申请人： David C. Casler , Joan L. Mitchell
发明人： David C. Casler , Joan L. Mitchell
IPC分类号： H04L7/00
CPC分类号： H04N19/60 , H04N19/80 , H04N19/85
摘要： Computation of variance or variance of the autocorrelation over a moving window of various sizes of a signal containing noise and possibly a small digital signal provides a sensitive, frequency independent indication of the likelihood of the presence of a small pulse, chirp or even spread spectrum digital signal possibly obscured by noise or larger signals in the signal to much lower signal-to-noise ratios than previously possible. Large signals in the signal which may also obscure any small signal are removed to a different signal path from the noise and small signals by subtraction after compression and reconstruction of the large signal. The compression noise thus added to the signal may also increase sensitivity of the variance of the autocorrelation to small signals obscured by the large signals. Controlling storage in response to the computed variance or variance of the autocorrelation allows substantial avoidance or limitation of storage of signals which contain only noise.

5. 发明授权

US07343267B1 Methods and systems for statistical based monitoring and power management 失效
标题翻译：用于基于统计的监控和电源管理的方法和系统
公开(公告)号：US07343267B1
公开(公告)日：2008-03-11
申请号：US11533860
申请日：2006-09-21
申请人： David C. Casler , Joan L. Mitchell , Piet C. De Groen
发明人： David C. Casler , Joan L. Mitchell , Piet C. De Groen
IPC分类号： H04N11/02
CPC分类号： G06Q10/10 , G06Q50/26
摘要： Embodiments of the present invention provide devices and techniques for detecting anomalies in monitored environments. In one embodiment of the invention, data may be acquired by monitoring an environmental variable. Based on the acquired data, statistics may be calculated which model the behavior of the environmental variable. Based on the calculated statistics, a long-term behavior and a short-term behavior of the statistics may also be calculated. A difference between the long-term statistics and the short-term statistics may then be calculated. If the difference between the long-term statistical behavior and short-term statistical behavior exceeds a dynamic or predefined threshold, an action may be taken.
摘要翻译：本发明的实施例提供了用于检测被监视环境中的异常的设备和技术。在本发明的一个实施例中，可以通过监视环境变量来获取数据。根据所获得的数据，可以计算哪个模型对环境变量的行为进行统计。根据计算的统计，也可以计算统计的长期行为和短期行为。然后可以计算长期统计数据和短期统计数据之间的差额。如果长期统计行为与短期统计行为之间的差异超过动态或预定义的阈值，则可采取行动。

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