Methods for generating data output containing physiological and motion-related information

A method of monitoring a subject via a monitoring device attached to a body of the subject, the device comprising at least one optical emitter and at least one optical detector, the method comprising:

• directing light having a plurality of optical wavelengths at the body of the subject via the at least one optical emitter;
• measuring body motion of the subject by detecting, via the at least one optical detector, light scattered by the body that is within a first wavelength range, wherein the first wavelength range comprises violet light or ultraviolet (UV) light;
• and
• measuring blood vessel changes or blood analyte levels of the subject by detecting, via the at least one optical detector, light scattered by the body that is within a second wavelength range different from the first range, wherein the second wavelength range comprises green light, red light, infrared (IR) light or blue light.

A method of monitoring a subject via a monitoring device attached to a body of the subject, the device comprising at least one motion sensor and at least one photoplethysmography (PPG) sensor, the method comprising:

• directing light having a plurality of optical wavelengths at the body of the subject via the at least one PPG sensor;
• measuring body motion of the subject by detecting, via the at least one motion sensor, light scattered by the body that is within a first wavelength range, wherein the first wavelength range comprises violet light or ultraviolet (UV) light;
• and
• measuring blood vessel changes or blood analyte levels of the subject by detecting, via the at least one PPG sensor, light scattered by the body that is within a second wavelength range different from the first range, wherein the second wavelength range comprises green light, red light, infrared (IR) light or blue light.

A method of generating data output containing physiological and motion-related information, the method comprising:

• sensing physical activity and physiological information from a subject via a single monitoring device attached to the subject, wherein the monitoring device comprises at least one motion sensor for sensing the physical activity and at least one photoplethysmography (PPG) sensor for sensing the physiological information;
• and
• processing signals from the at least one motion sensor and signals from the at least one PPG sensor via at least one processor, into a serial data output of physiological information and motion-related information,
• wherein the serial data output is configured such that subject heart rate can be extracted from the physiological information, and such that a plurality of subject physical activity parameters can be extracted from the motion-related information, and such that data integrity can be extracted from the physiological information and/or the motion-related information.

A method of generating data output containing physiological information, the method comprising:

• sensing physical activity and physiological information from a subject via a single monitoring device attached to the subject, wherein the monitoring device comprises a motion sensor and a photoplethysmography (PPG) sensor;
• removing, via a first filter stage, one or more frequency bands from a PPG signal generated by the PPG sensor to produce a pre-conditioned PPG signal;
• processing, via a second filter stage, the pre-conditioned PPG signal and a signal generated by the motion sensor to remove motion noise from the pre-conditioned PPG signal and produce a cleaner PPG signal;
• and
• processing, via a third filter stage, the cleaner PPG signal to extract at least one physiological parameter.

A method of generating data output containing physiological information, the method comprising:

• sensing physical activity and physiological information from a subject via a single monitoring device attached to the subject, wherein the monitoring device comprises a motion sensor and a photoplethysmography (PPG) sensor;
• processing, via a first filter stage, a PPG signal produced by the PPG sensor and a signal generated by the motion sensor to remove motion noise from the PPG signal and produce a cleaner PPG signal;
• removing, via a second filter stage, one or more frequency bands from the cleaner PPG signal to produce a processed PPG signal;
• and
• processing, via a third filter stage, the processed PPG signal to extract at least one physiological parameter.