Method and system to detect tampering using light detector
First Claim
Patent Images
1. An optical anti-tamper system, the system comprising:
- at least one array of light sources located within a chassis;
at least one array of photosensitive elements located within the chassis, the array of photosensitive elements in communication with an alarm, wherein the alarm is operable to transmit a tamper-event warning signal if an increased light level is detected by at least one array of photosensitive elements.
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Abstract
An optical anti-tamper system that includes at least one array of light sources located within a chassis and at least one array of photosensitive elements located within the chassis. The array of photosensitive elements are in communication with an alarm. The alarm is operable to transmit a tamper-event warning signal if an increased light level is detected by at least one array of photosensitive elements.
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Citations
16 Claims
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1. An optical anti-tamper system, the system comprising:
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at least one array of light sources located within a chassis;
at least one array of photosensitive elements located within the chassis, the array of photosensitive elements in communication with an alarm, wherein the alarm is operable to transmit a tamper-event warning signal if an increased light level is detected by at least one array of photosensitive elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of manufacture, the method comprising:
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positioning at least one array of light sources within a chassis;
positioning at least one array of photosensitive elements within the chassis operable to receive light from at least one array of light sources;
positioning at least one opaque layer to prevent light from propagating from the array of light sources to any one of the arrays of photosensitive elements; and
connecting an alarm in communication with one or more photosensitive elements correlated to the array of photosensitive elements. - View Dependent Claims (10)
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11. An optical anti-tamper system, the system comprising:
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means to break an opaque layer positioned over an array of light sources responsive to a touching of one or more components within a chassis;
means for detecting an increased light level at an array of photosensitive elements within the chassis responsive to the break; and
means for generating a tamper-event warning signal responsive to the detecting. - View Dependent Claims (12)
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13. A method to detect a tampering event, the method comprising:
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breaking an opaque layer, wherein the break is located between an array of light sources and one or more arrays of photosensitive elements within the chassis;
transmitting light from a portion of the array of light sources through the opaque layer responsive to breaking the opaque layer;
detecting an increase in a light level at the one or more array of photosensitive elements responsive to the transmitting light; and
generating a tamper-event warning signal responsive to the detecting. - View Dependent Claims (14, 15, 16)
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Specification