SIGNAL PROCESSING SYSTEMS AND METHODS FOR DETERMINING SLOPES OF ELECTRONIC SIGNALS
First Claim
1. A method for determining a desired slope of a signal, comprising:
- determining first slopes between a first point in the signal and at least two other points in the signal;
determining second slopes between a second point in the signal and at least two other points in the signal;
generating a histogram from the first slopes and the second slopes; and
selecting the desired slope of the signal corresponding to a preferred value in the histogram.
2 Assignments
0 Petitions
Accused Products
Abstract
The present disclosure relates to signal processing and, more particularly, relates to determining the slope of a signal. In embodiments, first slopes between a first point in the signal and other points in the signal may be determined. Second slopes between a second point in the signal and other points in the signal may also be determined. The first and second slopes may be used to generate a histogram, and a desired slope may be selected from the preferred value of the histogram. In an embodiment, a two-dimensional Lissajous figure may be selected from a three-dimensional Lissajous figure and a histogram of the slopes within the selected Lissajous figure may be created to determine the desired slope. The desired slope may have clinical relevance (e.g., it may be used to determine a patient'"'"'s blood oxygen saturation level). The three-dimensional Lissajous figure may be derived at least in part from surface signals related to two transform-surfaces. Each transform-surface may be the result of performing a continuous wavelet transform on a signal. A confidence measure may be generated with respect to determining the desired slope.
18 Citations
23 Claims
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1. A method for determining a desired slope of a signal, comprising:
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determining first slopes between a first point in the signal and at least two other points in the signal; determining second slopes between a second point in the signal and at least two other points in the signal; generating a histogram from the first slopes and the second slopes; and selecting the desired slope of the signal corresponding to a preferred value in the histogram. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for determining a desired slope of a signal, the system comprising:
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an input signal generator for generating a signal; a processor coupled to the input signal generator; and an output coupled to the processor, wherein the output is capable of displaying information based at least in part on the desired slope and wherein the processor is capable of; determining first slopes between a first point in the signal and at least two other points in the signal; determining second slopes between a second point in the signal and at least two other points in the signal; generating a histogram from the first slopes and the second slopes; and selecting the desired slope of the signal corresponding to a preferred value in the histogram. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A computer-readable medium for use in determining a desired slope of a signal, the computer-readable medium having computer program instructions recorded thereon for:
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determining first slopes between a first point in the signal and at least two other points in the signal; determining second slopes between a second point in the signal and at least two other points in the signal; generating a histogram from the first slopes and the second slopes; and selecting the desired slope of the signal corresponding to a preferred value in the histogram. - View Dependent Claims (20, 21, 22, 23)
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Specification