Multi-dimensional signal processing and display
First Claim
1. A method of determining characteristics of an object by analyzing signals from said object, said method comprising:
- transmitting a waveform;
receiving said signals from said object, said signals being in response to said transmitted waveform;
extracting data from said signals;
embedding said data into a data matrix;
compressing said data matrix into a compressed-data-form;
modifying selected data values in said compressed-data-form;
based on a function of said data values in said compressed-data-form;
expanding said compressed-data-form to an enhanced data matrix that contains data representing said characteristics.
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Accused Products
Abstract
A multi-dimensional acoustic data processing and display system arranges acoustic data in a three-dimensional matrix. The three-dimensional matrix is compressed using singular value decomposition into singular vectors and singular values. A historical database is created and maintained and is also concatenated with the three-dimensional data. This database allows reverberation and noise to be diminished and other, weaker features in the data to be enhanced. Once the data is compressed, the data can be analyzed efficiently. The singular vectors are partitioned into one or more groups on the basis of their singular values or other criteria. Certain of the compressed data elements are enhanced or diminished by modifying the singular values within each of the groups of singular vectors. Selected singular vectors are processed further by other techniques for further enhancement, detection, isolation, feature extraction and classification. The compressed and enhanced data is then expanded back into three-dimensional form for display or for other processing.
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Citations
47 Claims
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1. A method of determining characteristics of an object by analyzing signals from said object, said method comprising:
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transmitting a waveform; receiving said signals from said object, said signals being in response to said transmitted waveform; extracting data from said signals; embedding said data into a data matrix; compressing said data matrix into a compressed-data-form; modifying selected data values in said compressed-data-form;
based on a function of said data values in said compressed-data-form;expanding said compressed-data-form to an enhanced data matrix that contains data representing said characteristics. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method of displaying signals generated by an object, said method comprising:
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transmitting a waveform at selected time intervals, receiving said signals from said object, said signals being in response to said transmitted waveforms; embedding information received from said signals for said time intervals into a series of data matrices; compressing each of said data matrices into a compressed-data-form; displaying said data matrices as a time-ordered sequence of displays by sequentially expanding and displaying each said data matrix in said compressed-data-form.
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29. A method of determining characteristics of an object by analyzing signals from said object, said method comprising:
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transmitting a waveform; receiving said signals from said object, said signals being in response to said transmitted waveform; extracting data from said received signals; embedding said data into a data matrix; compressing said data matrix into a compressed-data-form; transforming said compressed-data-form into a first set of coefficients; transforming a replica of said transmitted waveform into a second set of coefficients; correlating said first set of coefficients with said second set of coefficients, resulting in correlated data; transforming said correlated data back to said compressed-data-form; and expanding said compressed-data-form to an enhanced data matrix that contains data representing said characteristics.
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30. A method of determining characteristics of an object by analyzing signals from said object, said method comprising:
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extracting data relating to said signals; embedding said data into a data matrix; compressing said data matrix into a compressed-data-form; transforming said compressed-data-form into a set of data coefficients; transforming said set of data coefficients into a corresponding power spectrum form; analyzing said power spectrum form to determine selected characteristics of said object. - View Dependent Claims (31)
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32. A method of determining characteristics of an object by analyzing signals from said object, said method comprising:
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transmitting a waveform; receiving said signals from said object, said signals being in response to said transmitted waveform; extracting data from said signals; embedding said data into a data matrix; decomposing said data matrix into singular vectors and singular values; modifying selected singular values; saving at least a portion of said singular vectors in a subspace based on a function of said singular values; and expanding said modified singular values and said subspace of singular vectors to an enhanced data matrix which contains data representing said characteristics.
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33. A system to determine characteristics of an object by analyzing signals from said object, said system comprising;
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means for transmitting a waveform; means for receiving signals from said object, said signals being in response to said transmitted waveform; means for extracting data from said signals; means for embedding said data into a data matrix; means for compressing said data matrix into a compressed-data-form; means for modifying selected data values in said compressed-data-form based on a function of said data values in said compressed-data-form; means for expanding said compressed-data-form to an enhanced data matrix that contains data representing said characteristics. - View Dependent Claims (34, 35)
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36. A system to display signals generated by an object, said system comprising;
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means for transmitting a waveform at selected time intervals; means for receiving signals from said object, said signals being in response to said transmitted waveforms; means for embedding information received from said signals for said time intervals into a series of data matrices; means for compressing each of said data matrices into a compressed-data-form; means for displaying said data matrices as a time-ordered sequence of displays by sequentially expanding and displaying each said data matrix in said compressed-data-form.
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37. A system to determine characteristics of an object by analyzing signals from said object, said system comprising:
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means for transmitting a waveform; means for receiving signals from said object, said signals being in response to said transmitted waveform; means for extracting data from said signals; means for embedding said data into a data matrix; means for compressing said data matrix into a compressed-data-form; means for transforming said compressed-data-form into a first set of coefficients; means for transforming a replica of said transmitted waveform into a second set of coefficients; means for correlating said first set of coefficients with said second set of coefficients, resulting in correlated data; means for transforming said correlated data back to said compressed-data-form; and means for expanding said compressed-data-form to an enhanced data matrix that contains data representing said characteristics.
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38. A system to determine characteristics of an object by analyzing signals from said object, said system comprising:
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means for extracting data relating to said signals; means for embedding said data into a data matrix; means for compressing said data matrix into a compressed-data-form; means for transforming said compressed-data-form into a set of data coefficients; means for transforming said set of data coefficients into a corresponding power spectrum form; means for analyzing said power spectrum form to determine selected characteristics of said object.
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39. A system to determine characteristics of an object by analyzing signals generated by said object, said system comprising:
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means for transmitting a waveform; means for receiving signals from said object in response to said transmitted waveform; means for extracting data from said signals; means for embedding said data into a data matrix; means for decomposing said data matrix into singular vectors and singular values; means for modifying selected singular values; means for saving at least a portion of said singular vectors in a subspace based on a function of said singular values; and means for expanding said modified singular values and said subspace of singular vectors to an enhanced data matrix which contains data representing said characteristics.
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40. A method of determining characteristics of an object by analyzing signals from said object, said object being at a distance from a monitoring system, said method comprising:
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extracting data from said signals; embedding said data into a data matrix having at least two dimensions, a first dimension corresponding to the distance from the monitoring system; compressing said data matrix into a compressed-data-form; modifying selected data values in said compressed-data-form based on a function of said data values in said compressed-data-form; expanding said compressed-data-form to an enhanced data matrix that contains data representing said characteristics. - View Dependent Claims (41, 42, 43)
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44. A system to determine characteristics of an object by analyzing signals from said object, said object being at a distance from a monitoring system, said method comprising:
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means for extracting data from said signals; means for embedding said data into a data matrix having at least two dimensions, a first dimension corresponding to said distance from said monitoring system; means for compressing said data matrix into a compressed-data-form; means for modifying selected data values in said compressed-data-form based on a function of said data values in said compressed-data-form; means for expanding said compressed-data-form to an enhanced data matrix that contains data representing said characteristics. - View Dependent Claims (45, 46, 47)
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Specification