Therapeutic signal combination
First Claim
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1. A therapy device comprising:
- a transducer;
a storage medium having recorded thereon an electronic representation of a composite signal having nonlinear frequency variation, said composite signal being a combination of;
a first nonlinear signal having a first frequency spectrum, wherein said first nonlinear signal is produced by filtering a first nonlinear signal source to remove substantially all frequency signal power lying outside said first frequency spectrum, and a second nonlinear signal having a second frequency spectrum; and
a signal synthesizer in communication with said transducer and said storage medium for playing back said composite signal through said transducer.
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Abstract
Multiple frequency bands with nonlinear frequency variation are combined to enhance the effectiveness of therapy delivered by an infrasonic transducer or other delivery mechanism.
22 Citations
17 Claims
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1. A therapy device comprising:
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a transducer;
a storage medium having recorded thereon an electronic representation of a composite signal having nonlinear frequency variation, said composite signal being a combination of;
a first nonlinear signal having a first frequency spectrum, wherein said first nonlinear signal is produced by filtering a first nonlinear signal source to remove substantially all frequency signal power lying outside said first frequency spectrum, and a second nonlinear signal having a second frequency spectrum; and
a signal synthesizer in communication with said transducer and said storage medium for playing back said composite signal through said transducer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of providing therapy to a patient comprising the steps of:
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a) creating a first nonlinear signal having a first frequency spectrum, wherein said first nonlinear signal is produced by filtering a first nonlinear signal source to remove substantially all frequency signal power lying outside said first frequency spectrum;
b) creating a second nonlinear signal having a second frequency spectrum;
c) combining said first and second nonlinear signals into a composite signal; and
d) applying said composite signal to the patient through a transducer. - View Dependent Claims (12, 13, 14, 15)
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16. A method for scaling a therapeutic signal having a predetermined frequency spectrum and nonlinear amplitude variation comprising the steps of:
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a) identifying signal peaks within the predetermined frequency spectrum of the therapeutic signal;
b) selecting a scaling function to cause a greatest reduction of signal amplitude in the middle of the frequency spectrum of the therapeutic signal and minimal effect on signal amplitude at the edges of the frequency spectrum of the therapeutic signal;
c) selecting a scaling factor to be used in the scaling function; and
d) applying the scaling function to the signal peaks identified during said identifying step to reduce peak values of the therapeutic signal without introducing frequencies outside of the predetermined frequency spectrum of the therapeutic signal. - View Dependent Claims (17)
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Specification