Correlation of concurrent non-invasively acquired signals
First Claim
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1. A method of determining an attribute of a target, comprising:
- generating probe radiation;
applying at least a portion of said probe radiation to said target to generate back-scattered radiation;
generating reference radiation;
combining said back-scattered radiation and said reference radiation to produce an interference signal;
detecting said interference signal by means of a detector;
extracting concurrent information from said detected interference signal;
correlating said extracted concurrent information with data from a data bank stored in memory to generate correlation data; and
processing said correlation data to determine said attribute of said target.
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Abstract
A non-invasive imaging and analysis system suitable for measuring attributes of a target, such as the blood glucose concentration of tissue, includes an optical processing system which provides a probe and reference beam. It also includes a means that applies the probe beam to the target to be analyzed, combines the probe and reference beams interferometrically, detects concurrent interferometric signals and correlates the detected signals with previously stored electronic data to determine the attribute of the target.
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Citations
43 Claims
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1. A method of determining an attribute of a target, comprising:
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generating probe radiation;
applying at least a portion of said probe radiation to said target to generate back-scattered radiation;
generating reference radiation;
combining said back-scattered radiation and said reference radiation to produce an interference signal;
detecting said interference signal by means of a detector;
extracting concurrent information from said detected interference signal;
correlating said extracted concurrent information with data from a data bank stored in memory to generate correlation data; and
processing said correlation data to determine said attribute of said target. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An apparatus for determining an attribute of a target, comprising:
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means for generating probe radiation;
means for applying at least a portion of said probe radiation to said target to generate back-scattered radiation;
means for generating reference radiation;
means for combining said back-scattered radiation and said reference radiation to produce an interference signal;
means for detecting said interference signal by means of a detector;
means for extracting concurrent information from said detected interference signal;
means for correlating said extracted concurrent information with data from a data bank stored in memory to generate correlation data; and
means for processing said correlation data to determine said attribute of said target. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A system for determining an attribute of a target, comprising:
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generating probe radiation;
applying at least a portion of said probe radiation to said target to generate back-scattered radiation;
generating reference radiation;
combining said back-scattered radiation and said reference radiation to produce an interference signal;
detecting said interference signal by means of a detector;
extracting concurrent information from said detected interference signal;
correlating said extracted concurrent information with data from a data bank stored in memory to generate correlation data; and
processing said correlation data to determine said attribute of said target.
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Specification