METHOD AND SYSTEM FOR QUANTIFYING AN INTENTION OF MOVEMENT OF A USER
First Claim
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1. A method for quantifying an intention of movement of a user, the method comprising:
- extracting a mechanomyogram (MMG) signal in response to surface vibration of a muscle of the user; and
averaging the MMG signal by calculating the MMG root mean squared (RMS) amplitude or frequency variance in a predetermined time window;
where an increasing RMS amplitude of the MMG signal corresponds to an increasing muscle voluntary contraction or a decreasing frequency variance of the MMG signal corresponds to an increasing muscle voluntary contraction.
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Abstract
A method for quantifying an intention of movement of a user, the method comprising: extracting (61) a mechanomyogram (MMG) signal in response to surface vibration of a muscle of the user; and averaging (62) the MMG signal by calculating the MMG root mean squared (RMS) amplitude (63) or frequency variance (64) in a predetermined time window; where an increasing RMS amplitude of the MMG signal corresponds to increasing muscle voluntary contraction or a decreasing frequency variance of the MMG signal corresponds to increasing muscle voluntary contraction.
90 Citations
18 Claims
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1. A method for quantifying an intention of movement of a user, the method comprising:
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extracting a mechanomyogram (MMG) signal in response to surface vibration of a muscle of the user; and averaging the MMG signal by calculating the MMG root mean squared (RMS) amplitude or frequency variance in a predetermined time window; where an increasing RMS amplitude of the MMG signal corresponds to an increasing muscle voluntary contraction or a decreasing frequency variance of the MMG signal corresponds to an increasing muscle voluntary contraction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for quantifying an intention of movement of a user, the system comprising:
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a measurement unit to extract a mechanomyogram (MMG) signal in response to surface vibration of a muscle of the user; a signal processing unit to average the MMG signal by calculating the MMG root mean squared (RMS) amplitude or frequency variance in a predetermined time window; where an increasing RMS amplitude of the MMG signal corresponds to an increasing muscle voluntary contraction or a decreasing frequency variance of the MMG signal corresponds to an increasing muscle voluntary contraction. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification