Method, apparatus, and article to facilitate distributed evaluation of objects using electromagnetic energy
First Claim
1. A method of operating a test device having a control circuit, at least one source, at least one sensor, and at least one communications port, to test objects, the method comprising:
- operating the at least one source of the test device by the control circuit of the test device according to a first sequence during a first period to emit electromagnetic energy in a plurality of bands in a first order defined by the first sequence;
capturing electromagnetic energy in at least one part of an optical portion of an electromagnetic spectrum returned to the test device during the first period with the at least one sensor of the test device;
operating the at least one source of the test device by the control circuit according to a second sequence during a second period to emit electromagnetic energy in a plurality of bands in a second order defined by the second sequence, the second sequence different from the first sequence and the second order different from the first order;
capturing electromagnetic energy in at least one part of an optical portion of an electromagnetic spectrum returned to the test device during the second period with the at least one sensor of the test device; and
transmitting signals remotely from the test device via the at least one communications port of the test device, the signals indicative of at least one sensed characteristic of the captured electromagnetic energy.
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Accused Products
Abstract
Objects such as manufactured goods or articles, works of art, media such as identity documents, legal documents, financial instruments, transaction cards, other documents, and/or biological tissue are sampled via sequential illumination in various bands of the electromagnetic spectrum, a test response to the illumination is analyzed with respect to reference responses of reference objects. The sequence may be varied. The sequence may define an activation order, a drive level and/or temperature for operating one or more sources. Illumination may be in visible, infrared, ultraviolet, or other portions of the electromagnetic spectrum. Elements of the evaluation system may be remote from one another, for example coupled by a network.
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Citations
15 Claims
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1. A method of operating a test device having a control circuit, at least one source, at least one sensor, and at least one communications port, to test objects, the method comprising:
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operating the at least one source of the test device by the control circuit of the test device according to a first sequence during a first period to emit electromagnetic energy in a plurality of bands in a first order defined by the first sequence; capturing electromagnetic energy in at least one part of an optical portion of an electromagnetic spectrum returned to the test device during the first period with the at least one sensor of the test device; operating the at least one source of the test device by the control circuit according to a second sequence during a second period to emit electromagnetic energy in a plurality of bands in a second order defined by the second sequence, the second sequence different from the first sequence and the second order different from the first order; capturing electromagnetic energy in at least one part of an optical portion of an electromagnetic spectrum returned to the test device during the second period with the at least one sensor of the test device; and transmitting signals remotely from the test device via the at least one communications port of the test device, the signals indicative of at least one sensed characteristic of the captured electromagnetic energy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification