A system and method for determining at least one vital sign of a subject comprises a plurality of pressure sensors configured to be placed in a vicinity of the subject's body, and configured and operable to sense movements of skin of the subject's body within at least one region on the skin and generate sensing data corresponding to the at least one region; the sensing data comprising a plurality of measured signals being indicative of a common physiological event differentiated in time and intensity from one another and a control unit in data communication with each of pressure sensors of the plurality of pressure sensors; the control unit comprising an analyzer processing utility configured and operable to receive the sensing data corresponding to each of the at least one region; generate, for the pressure sensors associated with each of the at least one region, a pressure variation profile for the region; identify therein one or more predetermined signatures indicative of at least one physiological event of the subject; generate signature data thereof; extract at least one time stamp from the signature data; and generate vital sign data indicative of at least one vital sign of the subject based thereon.

A pulse measurement device is provided, including a first signal source, a second signal source, two microwave resonators, two mixers, and a signal processing unit. The first signal source and the second signal source output a first high-frequency signal and a second high-frequency signal, respectively. Each of the microwave resonators generates an electric field according to the first high-frequency signal, and senses a variation in the electric field which is interfered by a pulse to obtain a sensing signal. Each of the mixers is coupled to one of the microwave resonators, to mix the sensing signal and the second high-frequency signal to output a down-converted signal. The signal processing unit respectively demodulates amplitudes of the down-converted signals of the two mixers to obtain amplitude signals.

A method of determining atrial fibrillation includes determining if a patient's pulse beats form an irregular pattern. If so, presence of an irregular pulse is indicated to a patient and, an electrocardiogram is obtained for determining atrial fibrillation. Initially, a pulse is detected at regular time intervals from a first appendage when motionless, using a pulse detector and pulse rhythms from a succession of time intervals, each corresponding to a respective interval of time between successive pulse beats of a sequence of the pulse beats. Then, a second appendage makes contact with an electrically conductive unit, and electrocardiogram signals are detected simultaneously with pulse rhythms while the first appendage is motionless and both appendages are relaxed. The signals are then analyzed to determine whether, in combination, they are indicative of atrial fibrillation. If atrial fibrillation is determined not to be present based on analysis of said ECG, then the pulse analyzer is adjusted to not detect that pulse pattern as irregular.

An instrument and method for non-invasively deriving at least one biometric datum of a living vertebrate. A sensor positioned against the vertebrate measures vibrations within its body. The sensor provides the samples to the instrument as at least one time-stamped stream that correspond to one or more linear and/or rotational acceleration measurement axes. The instrument organizes the samples into windowed streams, separates them into a first set of streams corresponding to physical events of the vertebrate associated with cardiovascular activity and a second set of streams corresponding to physical events of the vertebrate associated with respiration. A datum can be extracted from the first set by autocorrelating it with a time-delayed version thereof to identify at least one characteristic peak of the vertebrate's cardiac cycle. A datum can be extracted from the second set by determining a characteristic frequency of respiration of the vertebrate.

An implantable medical device (IMD) and method are provided. The IMD includes a sensing channel configured to obtain biological signals indicative of biological behavior of an anatomy of interest over a period of time. The biological behavior has a feature of interest that repeats over time. The biological signals have clinically relevant (CR) segments that include information related to the feature of interest. The biological signals have non-clinically relevant (NCR) segments that do not include information related to the feature of interest. At least one of circuitry or a processor are configured to compare the biological signals to an amplitude window to distinguish the CR segments from the NCR segments, save to memory the CR segments and delete the NCR segments, save to memory time information indicative of a duration of the NCR segments that were deleted and to form a lossy compressed data set for the biological signals.

An apparatus for measuring biometric information is provided. The apparatus may include: a main body configured to be worn on an object to be examined. The main body may include a contact pressure sensor configured to measure a contact pressure of the object while a hand shape is changing; a pulse wave sensor configured to measure a pulse wave signal of the object; and a processor configured to measure biometric information on the basis of the measured contact pressure and pulse wave signal.

An optoelectronic sensor, a control method for the optoelectronic sensor, and a pulse monitor including the optoelectronic sensor. The optoelectronic sensor may include a light source, a first receiver, a second receiver, and a phantom material layer that is facing a light-emitting side of the light source and at least partially overlapping with the second receiver.

In the electronic apparatus, a contact impedance compensation controller calculates a first compensation value and a second compensation value so that a resulting value obtained by adding a third resistance value between a measuring electrode and first skin to a first resistance value is equal to a resulting value obtained by adding a fourth resistance value between a reference electrode and second skin to a second resistance value, determines first information on the basis of the first compensation value, determines the second information on the basis of the second compensation value, and sends the first information to the first compensation circuit.

A method, a computing device, and a system for monitoring postures are proposed. The method includes the following steps. An image sequence captured on a monitored area including a monitored subject is received. A first stable value corresponding to a first stage of stability of the monitored subject is detected, where the first stable value is associated with a position corresponding to a posture of the monitored subject remaining consecutively stable within a first predetermined time period. A second stable value corresponding to a second stage of stability of the monitored subject is detected, where the second stable value is associated with a position corresponding to a posture of the monitored subject remaining consecutively stable within a second predetermined time period. The first stable value and the second stable value are compared to accordingly determine whether a posture of the monitored subject has changed.

An apparatus and method for measuring a biosignal that include generating a control signal for processing the biosignal based on an obtained replication signal or a sensed motion of the subject.