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US 2022/0273244 A1Published application
Physiological signal recognition apparatus and physiological signal recognition method
AssigneeIndustrial Technology Research Institute
InventorsHeng-Yin Chen, Yun-Yi Huang, Shuen-Yu Yu
Life of this patent
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Abstract
A physiological signal recognition apparatus and a physiological signal recognition method are provided. A root mean square algorithm is executed on a physiological signal to obtain a noise threshold, and the physiological signal is adjusted based on the noise threshold to obtain an adjusted signal. Then, a muscle strength starting point in the adjusted signal is detected.
Claims20
A physiological signal recognition apparatus, comprising:
- a physiological signal sensor, sensing a physiological signal;
- and
- a processor, coupled to the physiological signal sensor and configured to:
- execute a root mean square algorithm on the physiological signal to obtain a noise threshold;
- adjust the physiological signal based on the noise threshold to obtain an adjusted signal;
- and
- detect a muscle strength starting point in the adjusted signal.
4 more elements
A physiological signal recognition method, comprising:
- converting a physiological signal into an initial frequency domain signal;
- calculating a noise variation based on a compensation value obtained by a compensation element;
- finding a noise frequency corresponding to the noise variation from a database;
- removing the noise frequency in the initial frequency domain signal to obtain a corrected frequency domain signal;
- converting the corrected frequency domain signal into a time domain signal;
- and
- recording the time domain signal as a corrected physiological signal.
4 more elements
A physiological signal recognition method, comprising:
- converting a physiological signal into an initial frequency domain signal;
- comparing the initial frequency domain signal with a standard signal to obtain a noise frequency;
- removing the noise frequency in the initial frequency domain signal to obtain a corrected frequency domain signal;
- converting the corrected frequency domain signal into a time domain signal;
- and
- recording the time domain signal as a corrected physiological signal.
3 more elements
Dependencies are inferred from the claim text.