SYSTEM AND METHOD FOR POWER-EFFICIENT TRANSMISSION OF EMG DATA
First Claim
1. A method for displaying muscle force data to a user, said method comprising:
- placing a patch on the user'"'"'s skin over a muscle group to be monitored, wherein electrodes on the patch engage the skin, wherein the electrodes sense electromyographic (EMG) activity and produce an analog electrical signal;
filtering and amplifying the analog electrical signal with a limited bandwidth amplifier on the patch;
converting and rectifying the filtered and amplified analog signal to produce a digital signal;
processing the distal signal in a microprocessor on the patch to produce a smoothed output;
transmitting the smoothed output;
receiving and displaying the smoothed output on a remote display unit.
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Accused Products
Abstract
The system for displaying muscle force data includes a wearable patch and a remote visual display. The wearable patch carries electrodes suitable for sensing electromyographic signals on the skin of the patient. The patch carries circuitry which converts the detected electromyographic signal to a digital output which can be transmitted to the remote visual display. The circuitry relies on filtering to produce a usable digital signal at very low power consumption. The transmitted signal can be used to drive a variety of visual displays, including a conventional hand-held personal communicators and entertainment devices which had been programmed to suitably process the visual display.
2 Citations
21 Claims
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1. A method for displaying muscle force data to a user, said method comprising:
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placing a patch on the user'"'"'s skin over a muscle group to be monitored, wherein electrodes on the patch engage the skin, wherein the electrodes sense electromyographic (EMG) activity and produce an analog electrical signal; filtering and amplifying the analog electrical signal with a limited bandwidth amplifier on the patch; converting and rectifying the filtered and amplified analog signal to produce a digital signal; processing the distal signal in a microprocessor on the patch to produce a smoothed output; transmitting the smoothed output; receiving and displaying the smoothed output on a remote display unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for displaying muscle force data to a user, said method comprising:
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placing a patch on the user'"'"'s skin over a muscle group to be monitored, wherein electrodes on the patch engage the skin, wherein the electrodes sense electromyographic (EMG) activity and produce an analog electrical signal; and filtering and amplifying the analog electrical signal to produce two data streams; wherein one data stream is produced by high frequency filtering and another data stream is produced by low frequency filtering, wherein a ratio between the high frequency filtered muscle activity signal and a low frequency filtered muscle activity provides an indicator of muscle fatigue. - View Dependent Claims (19)
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20. A method for displaying muscle force data to a user, said method comprising:
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placing a patch on the user'"'"'s skin over a muscle group to be monitored, wherein electrodes on the patch engage the skin and the electrodes sense electromyographic (EMG) activity and produce an analog electrical signal; and filtering and amplifying the analog electrical signal to produce two digital data streams; wherein the two signals are obtained from different electrode sensors on the patch and treated with the same filtering, wherein a ratio between the two digital data streams provides an indicator of muscle fatigue. - View Dependent Claims (21)
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Specification