ELECTROMAGNETIC EMISSIONS STIMULATION AND DETECTION SYSTEM
First Claim
1. A computerized system for detecting a target electronic device emitting an unintentional electromagnetic emission (UEE) signal within an area, the computerized system comprising:
- a stimulation component for transmitting an ideal stimulation signal within the area in response to an input received from an input device, wherein the target electronic device is responsive to the ideal stimulation signal to emit a stimulated UEE signal; and
a detection component for;
receiving the stimulated UEE signal;
converting the stimulated UEE signal to a digital signal;
processing the digital signal to determine a characteristic of the stimulated UEE signal;
comparing the determined characteristic to unique characteristic data stored in a memory, the unique characteristic data comprising unique characteristics for each of a plurality of test devices; and
generating an alert signal when the determined characteristic of the stimulated UEE signal matches unique characteristic data stored in the memory.
1 Assignment
0 Petitions
Accused Products
Abstract
A system and method for detecting and identifying electronic devices based on their unintended electromagnetic emissions (“UEE”) signals is presented. During device classification, UEE signals are measured from a plurality of test devices and characteristic data is obtained from the UEE signal emitted from each test device. Using the characteristic data, a threshold value and ideal pulse template can be determined for each test device and stored in a memory. An ideal stimulation signal is also determined for each test device and stored in the memory. During device detection, the ideal stimulation signal is applied to the environment in which a target device is suspected of being located. Stimulated UEE signals are measured from the target device and processed. The processed measurement data is compared to stored power threshold values and ideal pulse templates to determine if the target device is present.
-
Citations
20 Claims
-
1. A computerized system for detecting a target electronic device emitting an unintentional electromagnetic emission (UEE) signal within an area, the computerized system comprising:
-
a stimulation component for transmitting an ideal stimulation signal within the area in response to an input received from an input device, wherein the target electronic device is responsive to the ideal stimulation signal to emit a stimulated UEE signal; and a detection component for; receiving the stimulated UEE signal; converting the stimulated UEE signal to a digital signal; processing the digital signal to determine a characteristic of the stimulated UEE signal; comparing the determined characteristic to unique characteristic data stored in a memory, the unique characteristic data comprising unique characteristics for each of a plurality of test devices; and generating an alert signal when the determined characteristic of the stimulated UEE signal matches unique characteristic data stored in the memory. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method for detecting a target electronic device emitting an unintentional electromagnetic emission (UEE) signal within an area, the method comprising:
-
transmitting an ideal stimulation signal within the area in response to an input received from an input device, wherein the target electronic device is responsive to the ideal stimulation signal to emit a stimulated UEE signal; receiving the stimulated UEE signal; converting the stimulated UEE signal to a digital signal; processing the digital signal to determine a characteristic of the stimulated UEE signal; comparing the characteristic of the stimulated UEE signal to unique characteristic data stored in a memory, the unique characteristic data comprising unique characteristics for each of a plurality of test devices; and generating an alert signal when the characteristic of the stimulated UEE signal matches the unique characteristic data stored in the memory. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. A computerized system for detecting a target electronic device emitting an unintentional electromagnetic emission (UEE) signal within an area, the computerized system comprising:
-
a stimulation component for transmitting an ideal stimulation signal within the area in response to an input received from an input device, wherein the target electronic device is responsive to the ideal stimulation signal to emit a stimulated UEE signal; a detection component for; receiving the stimulated UEE signal; converting the stimulated UEE signal to a digital signal; processing the digital signal to determine a characteristic of the stimulated UEE signal and comparing the characteristic to unique characteristic data stored in a memory, the unique characteristic data comprising unique characteristics for each of a plurality of test devices, wherein the processing includes; retrieving an ideal pulse template from the memory that corresponds to a first one of the plurality of test devices; first correlating the digital signal with the ideal pulse template; second correlating the first correlation with a square wave to determine a normalized measure of similarity; comparing the normalized measure of similarity to a first threshold value stored in the memory that corresponds to the first test device; and generating an alert signal when the normalized measure of similarity is greater than or equal to the first threshold value; and a sound generator operatively coupled to the detection component for processing the alert signal to generate a unique sound indicative of a particular electronic device. - View Dependent Claims (18, 19, 20)
-
Specification