Abstract: The invention relates generally to financial instrument classification and more particularly to methods and system for recognizing similarities in behaviors among financial instruments. According to one embodiment, a method of classifying similar financial instruments is provided. Classification analysis is performed on a desired financial instrument that a user specifies to determine other financial instruments that behave similarly to the specified financial instrument during a specified time range. Based on the classification, the similarly behaving financial instruments and additional characteristics are presented to the user for evaluation and tracking.

Abstract: The invention relates generally to financial instrument classification and more particularly to methods and system for recognizing similarities in behaviors among financial instruments. According to one embodiment, a method of classifying similar financial instruments is provided. Classification analysis is performed on a desired financial instrument that a user specifies to determine other financial instruments that behave similarly to the specified financial instrument during a specified time range. Based on the classification, the similarly behaving financial instruments and additional characteristics are presented to the user for evaluation and tracking.

Abstract: A dual sensor intruder alarm (DSIA) for detecting an intruder in a security zone monitored by the DSIA comprising: a PIR sensor; an additional sensor, and a controller that determines an operating difference between the ambient temperature and a normative surface temperature of an intruder in the security zone; wherein if the operating difference is equal to or greater than a predetermined threshold difference, the controller determines whether an intruder is present in the security zone using signals from both the PIR sensor and the additional sensor and if the operating difference is less than the predetermined threshold difference, the controller uses signals from the additional sensor but not from the PIR sensor to determine presence of an intruder.

Abstract: A dual sensor intruder alarm (DSIA) for detecting an intruder in a security zone monitored by the DSIA comprising: a PIR sensor; an additional sensor, and a controller that determines an operating difference between the ambient temperature and a normative surface temperature of an intruder in the security zone; wherein if the operating difference is equal to or greater than a predetermined threshold difference, the controller determines whether an intruder is present in the security zone using signals from both the PIR sensor and the additional sensor and if the operating difference is less than the predetermined threshold difference, the controller uses signals from the additional sensor but not from the PIR sensor to determine presence of an intruder.

Abstract: A system for detecting intrusion into a protected area by virtue of a change in detected infrared energy from an ambient level, and for generating an alarm signal in response thereto includes a first assembly having a Passive Infra Red (PIR) sensing element for generating a contrast signal representative of deviation in detected infrared energy, a second assembly for generating an ambient temperature signal, an amplifier for amplifying the contrast signal, and a processor for generating a threshold as a function of the ambient temperature. The gain and threshold are defined to generate an "alarm trigger condition", and an alarm activator responds to the "alarm trigger condition" for activating an alarm signal.