Alarm system having an indicator light that is external to an enclosed space for indicating the time elapsed since an intrusion into the enclosed space and method for installing the alarm system
First Claim
1. An alarm system for providing an indication of time elapsed since an intrusion into an enclosed space, the enclosed space being surrounded by an outer perimeter zone, the indication enabling an observer situated outside the outer perimeter zone to learn at least approximately how much time has elapsed since the intrusion, the alarm system comprising:
- at least one interior sensor being located within an enclosed space, the at least one sensor configured to generate an intrusion time signal in response to an intrusion into the enclosed space;
an indicator light responsive to the intrusion time signal, the indicator light being located outside the enclosed space and within an outer perimeter zone of the enclosed space,the indicator light being configured to emit light upon receiving the intrusion time signal, the emitted light being visible from outside the outer perimeter zone of the enclosed space, thereby rendering the enclosed space readily identified as having been intruded upon by an observer situated outside a perimeter zone of the enclosed space; and
a light changing system responsive to the intrusion time signal, and in communication with the indicator light, the light changing system being configured to change the emitted light over time so as to indicate at least approximately how much time has elapsed since the intrusion.
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Accused Products
Abstract
An alarm system for indicating the time that has elapsed since intrusion into an enclosed space, as well as a method for installing the alarm system, are disclosed. The alarm system detects an intrusion into the enclosed space, the intrusion thereby causing an indicator light outside the enclosed space to illuminate, thereby indicating time elapsed since intrusion. At least one interior sensor is located within the enclosed space and configured to generate an intrusion time signal in response to movement therein. The indicator light is located within an outer perimeter zone of the enclosed space, and upon receiving an intrusion time signal, the indicator light emits light visible from outside the outer perimeter zone of the enclosed space. The light can indicate time elapsed via a property of the light itself, such as wavelength, intensity and/or focus, and/or via a light display producing readable output of time elapsed, for example.
285 Citations
20 Claims
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1. An alarm system for providing an indication of time elapsed since an intrusion into an enclosed space, the enclosed space being surrounded by an outer perimeter zone, the indication enabling an observer situated outside the outer perimeter zone to learn at least approximately how much time has elapsed since the intrusion, the alarm system comprising:
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at least one interior sensor being located within an enclosed space, the at least one sensor configured to generate an intrusion time signal in response to an intrusion into the enclosed space; an indicator light responsive to the intrusion time signal, the indicator light being located outside the enclosed space and within an outer perimeter zone of the enclosed space, the indicator light being configured to emit light upon receiving the intrusion time signal, the emitted light being visible from outside the outer perimeter zone of the enclosed space, thereby rendering the enclosed space readily identified as having been intruded upon by an observer situated outside a perimeter zone of the enclosed space; and a light changing system responsive to the intrusion time signal, and in communication with the indicator light, the light changing system being configured to change the emitted light over time so as to indicate at least approximately how much time has elapsed since the intrusion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of installing an alarm system for providing an indication of time elapsed since an intrusion into an enclosed space, the enclosed space being surrounded by an outer perimeter zone, the indication enabling an observer situated outside the outer perimeter zone to learn at least approximately how much time has elapsed since the intrusion, the alarm system comprising:
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mounting at least one interior sensor located within an enclosed space, the at least one sensor being configured to generate an intrusion time signal in response to an intrusion into the enclosed space; mounting an indicator light responsive to the intrusion time signal, the indicator light being located outside the enclosed space and within an outer perimeter zone of the enclosed space, the indicator light being configured to emit light upon receiving the intrusion time signal, the emitted light being visible from outside the outer perimeter zone of the enclosed space, thereby rendering the enclosed space readily identified as having been intruded upon by an observer situated outside a perimeter zone of the enclosed space; and installing a light changing system responsive to the intrusion time signal, and in communication with the indicator light, the light changing system being configured to change the emitted light over time so as to indicate at least approximately how much time has elapsed since the intrusion. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification