Abstract: Sleep enhancement system for assistance, monitoring, informing, and improving sleep habits of a user. A utilized monitoring device gathers user's vital signs for transmission to a smart device while an environment sensor gathers information from the surroundings which is then sent to an environment transmitter. Signals from the smart device and environment transmitter are transmitted to a processor by wireless transmission such as by electromagnetic waves, radio waves, infrared, sound or by being reported by audio or visual transmission. Signals are stored for current or future commands to control the environment, smart devices, and appliances for a user. In addition to being able to control these, an input to the ABTT terminus, such as heat or cold, can be applied to encourage entry into sleep or wake from sleep, as well as release of supplements or drugs through a patch placed on the ABTT terminus or another bodily region.

Abstract: The present relates to a device for measuring at least one parameter of a patient, the device comprising a casing equipped with at least one sensor for measuring said parameter of the patient. The device comprises at least three sensors, each sensor being configured for measuring one distinct parameter, said three sensors being chosen among a list comprising at least a temperature sensor to measure a temperature of the patient, a sound sensor to record a body sound of the patient and an oximeter sensor to measure a blood oxygen level of the patient. The three sensors are mounted in the casing so that when the device is in contact with the skin of the patient, at least two distinct parameters, preferably three distinct parameters, are measured simultaneously.

Abstract: The invention relates to a medical remote consultation device (10a) including: a shell supporting a seat (12) and forming left (14) and right arm rests; a central unit (15) incorporated into the inside of the shell; and a set of sensors disposed on the left and right arm rests, the sensors being connected to the central unit; the shell being made of two removable parts (20-21): a first part (20) forming the right arm rest, supporting the seat and at least four other sensors and containing the central unit; and a second part (21) forming the left arm rest (14) and supporting at least one blood pressure sensor (16h) such that the installation of the medical remote consultation device can be carried out by securing the two parts (20-21) of the shell and by connecting the at least one blood pressure sensor (16h) to the central unit.

Abstract: Technologies for multimodal sensing include a wearable device having a flexible substrate and at least one multimodal sensor coupled to the flexible substrate. The multimodal sensor includes a photoplethysmography sensor and a bioimpedance sensor. The wearable device may include context sensors such as an accelerometer, a gyroscope, a temperature sensor, or a pressure sensor. The multimodal sensor may include an integrated pressure sensor. A processor of the wearable device is configured to receive sensor data from the photoplethysmography sensor and the bioimpedance sensor of the multimodal sensor that is indicative of a pulse curve of a user. The processor is further configured to correct the sensor data based on data received from the context sensors and to determine blood pressure data based on the corrected sensor data. The processor may be configured to store the blood pressure data or to transmit the blood pressure data to a remote computing device.

Abstract: A blood pressure monitoring device includes a wrist strap, a case, and a display. The strap portion is adapted to fasten the device to the wrist without occluding blood flow. At least one sensor modality is arranged within the case for obtaining sensor data from an artery in the wrist. In a preferred embodiment photoplethysmography sensors are incorporated in the case to generate PPG waveform data. A processor within the case is operable to compute mean arterial pressure, and optionally diastolic and systolic blood pressure based on extracted and computed features of the sensor data. Related methods and systems are also described.

Abstract: A system and methods is provided for estimating a peripheral hemodynamic state with high accuracy. An exemplary method includes obtaining a first photoplethysmographic signal of a capillary of a peripheral of a user; obtaining a second photoplethysmographic signal of an arteriole of the peripheral; estimating a pulse wave transmission time based on the first and second photoplethysmographic signals; and estimating a peripheral hemodynamic state of the peripheral based on the pulse wave transmission time. The first and second photoplethysmographic signals are obtained from a predetermined finger of the user.

Abstract: Apparatuses, machine-accessible storage media, and methods for noninvasively measuring a heart performance metric, such as left ventricular filling pressure, are described. In an embodiment, the apparatus includes a housing shaped to be grasped by a hand; a tower protruding from a surface of the housing positioned to conform to a finger of the hand when grasping the housing; a tactile sensor disposed on a curved surface of the tower and adapted to measure blood pressure pulsatility in a digital artery of the finger and output pulsatility signals indicative of the blood pressure pulsatility; a graphical user interface for orchestrating a test of the performance metric of the heart and displaying results of the test.

Abstract: The present application provides a blood pressure measurement method, apparatus, device, and readable storage medium. The method includes: controlling a cuff air bladder to depressurize in a state of pressurization completion; collecting a heart sound signal sequence and a cuff pressure time sequence in real-time; calculating a peak heart sound point time sequence based on the heart sound signal sequence; and finding a cuff pressure value at a corresponding moment in the cuff pressure time sequence as a blood pressure measurement value based on a moment of occurrence of a target peak heart sound point in the peak heart sound point time sequence. In the present application, the standardization of listening to the Korotkoff sounds is carried out, and the collected signals are automatically processed and recognized to obtain the blood pressure measurement value, which effectively improves the convenience and accuracy of the blood pressure measurement.

Abstract: Disclosed is a method for extracting a heart rate variability (HRV) feature value performed by a computing device including one or more processors. The method includes acquiring first biosignal data measured during a first time period. The method includes outputting one or more heart rate variability feature values corresponding to a time period longer than the first time period by inputting the first biosignal data into a pre-trained neural network model.

Abstract: The features of physiological signals can be mapped to a latent space in order to draw inferences about activity, health, and age of an individual. For example, heart rate pulses for a population can be acquired as PPG signals and features of these acquired PPG signals can be mapped to a latent space, along with biological age, in order to encode data in the latent space such that location and/or distance within the latent space can be used to infer a corresponding cardiovascular age. Features of a current pulse of PPG data for a user can then be transformed into the latent space with an autoencoder or the like in order to estimate a cardiovascular age for the user, which can also be compared to the user's biological age in order to draw inferences about fitness and/or provide recommendations, coaching, and the like.

Abstract: Disclosed are devices and methods for non-invasively measuring arterial stiffness using pulse wave analysis of photoplethysmogram data. In some implementations, wearable biometric monitoring devices provided herein for measuring arterial stiffness have the ability to automatically and intelligently obtain PPG data under suitable conditions while the user is engaged in activities or exercises. In some implementations, wearable biometric monitoring devices are provided herein with the ability to remove PPG data variance caused by factors unrelated to arterial stiffness. In some implementations, wearable biometric monitoring devices have the ability to perform PWA while accounting for the user's activities, conditions, or status.

Abstract: Method and apparatus for enhance medical imaging and identification with potential image resolution up to 1000 times smaller than diffraction limit, wavelength. Recording of wavefront of good body penetrating Radio Frequency (RF) electromagnetic waves in form of digital hologram allows to recreate 3 dimensional images of objects. Reference signals in set of monopulse antennas with overlapping squinted beams provides enhanced image resolution and allows suppression of scattering medium influence. Transforming of reflected near field signals to frequency-space-time domains allows identification of objects and scattering medium by spectrum signatures. Direct digitizing and digital interface for connection to multi-channel signal processor allows loose distributing of transceiver antenna modules around object or in small space.

Abstract: A physiological monitoring device (200) for application to a user's skin (10) employs a clinical-grade medical film (202) with a skin-compatible adhesive (402) disposed on the bottom side (201). Electrodes (420) are disposed on the bottom side (201) and sense a physiological metric from the user's skin (10). An elastomeric membrane (440) is integrated with the top side of the clinical-grade medical film (202). Undulated wires (430) are on an elastomeric membrane. An electronic circuit (204) is disposed on the elastomeric membrane (440) and is electrically coupled to the electrodes (420) via the undulated wires (430). The electronic circuit (204) senses the physiological metric from the electrodes (420), converts the physiological metric to a digital value, and stores the digital value for communication of the digital value to a remote device (210).

Abstract: A method including entering a fluid containing cavity in a human with an artificial device, verifying that a portion of the artificial device has entered the fluid containing cavity based on an electrical phenomenon indicative of a sensor component supported by and/or part of the artificial device being located in the fluid containing cavity.

Abstract: Some examples of the disclosure include applications, treatment-monitoring systems and computing devices configured with the applications, and computer-implemented methods to aid user monitoring of disordered-breathing and treatment.

Abstract: Apparatus for initiating a human response to perceived toe walking which includes an elongated a shoe insole dimensioned and configured for placement within the shoe of a human person; the insole having a toe portion and a heel portion at at opposite axial extremities of the shoe insole; a momentary electric switch is disposed proximate to the toe portion, the momentary electric switch is responsive to tip toe stepping by a human wearing a shoe having the elongated insole installed therein. The apparatus also includes a vibrator assembly disposed distal to the toe portion; a battery assembly disposed distal to the toe portion.

Abstract: A stadiometer includes a cap portion to be worn on a head of a user; a connecting portion having a first end coupled to the cap portion and a measuring portion coupled to a second end of the connecting portion. The measuring portion includes a plurality of sensors and a measuring rod. The stadiometer also includes a height measuring plate contactable by the plurality of sensors and the measuring rod. The sensors and measuring rod are configured such that measuring rod is horizontal when the height measuring plate is contacted by the plurality of sensors simultaneously. The measuring rod is configured to contact the height measuring plate when the height measuring plate is contacted by the plurality of sensors simultaneously.

Abstract: Neuromuscular monitoring is described that uses a novel lead assembly and a monitor that can select the appropriate electrodes on the lead assembly and calibrate the stimulation signals applied to the patient through the lead assembly. The monitoring can also set a noise floor value to reduce the likelihood of an erroneous train of four ratio.

Abstract: One or more embodiments of the present disclosure relate to a human body posture recognition system, comprising: at least one group of ultrasonic sensors, each group of ultrasonic sensors including an ultrasonic transmitter configured to transmit ultrasonic waves and an ultrasonic receiver configured to receive the ultrasonic waves. The ultrasonic transmitter and the ultrasonic receiver are located at different parts of the body of a user, respectively; and a processor configured to, on the basis of location information of the ultrasonic transmitter and the ultrasonic receiver, information of the ultrasonic waves transmitted by the ultrasonic transmitter, and information of the ultrasonic waves received by the ultrasonic receiver, recognize the posture of the user.

Abstract: The present disclosure relates to systems and processes for monitoring a workout and for generating improved interfaces for the same. In one example, while receiving activity data for a workout session, a first user interface of a workout application is displayed. While displaying the first user interface of the workout application, user input of a first type is detected. In response to detecting the user input of the first type, a first control affordance to pause receiving the activity data for the workout session is displayed, and activity data for the workout session is continued to be received.

Abstract: Disclosed are a gait analysis method, a gait analysis device, and a computer-readable storage medium. The method includes: obtaining consecutive N motion data; determining a plurality of probability distributions based on the N motion data, wherein the probability distributions respectively corresponds to a plurality of gait events; and determining an event time point of each gait event belonging to a specific step according to the plurality of probability distributions.

Abstract: The embodiments of the present disclosure disclose a wearable apparatus, comprising: a wearable body. A plurality of inductive sensors may be distributed on the wearable body. The plurality of inductive sensors include a plurality of inductive sensors crossing a joint contour. Each of the plurality of inductive sensors includes an inductive structure that is enclosed by a conductive wire. Each of the plurality of inductive sensors is attached to a position of the wearable body corresponding to a joint position and generates variable inductances with deformations of the joint position.

Abstract: A monitoring system for a patient and/or patient support apparatus includes one or more cameras that capture images and depth data. A computer processes the image signals and depth data and performs one or more of the following functions: (a) enabling/disabling a remote control adapted to move a component of the patient support apparatus; (b) detecting patient breathing abnormalities; (c) detecting the presence of a ligature and its attendant strangulation risk to the patient; (d) identifying a sheet and/or a patient gown in the captured images; (e) disabling/enabling controls on the patient support apparatus based on patient position; (f) synchronizing readings from one or more sensors with the image signals; (g) stitching together images captured from multiple cameras; and/or other functions. The cameras may be positioned on the patient support apparatus and/or elsewhere, and the computer may be a server and/or a controller on the patient support apparatus.

Abstract: A sensing system includes a first radar sensing assembly and an analysis system. The first radar sensing assembly measures plural distances to a first target location at different times using radar. The analysis system receives the plural distances from the first radar sensing assembly and quantifies movements of a target object at the first target location at the different times by calculating differences in the plural distances measured by the first radar sensing assembly. The analysis system generates one or more first quantified activity level values indicative of the movements of the target object at the first target location using the differences in the plural distances that are calculated.

Abstract: The present invention relates to a Respiratory Induction Plethysmography device comprising at least one folded wire extendable in a first direction (D1) and at least one second wire extendable in a second direction (D2), each of these wires being operated at different frequencies. The present invention further relates to disposable stretchable bands adapted therefor and to a method of RIP measurement, adapted for the identification of dorsal apnea.

Abstract: Systems and methods for a self-powered wireless wearable sensor system include a freestanding triboelectric nanogenerator (FTENG), used as a power source for a wearable sensor. The FTENG includes stator panels and corresponding slider panels with a grating pattern. Movement, such as cardiovascular exercise causes the slider panel(s) to slide across the stator panel(s) inducing a charge and powering a wearable device sufficiently to support data transmission and continuous monitoring. An integrated self-powered wireless wearable sensor system includes a microfluidic sweat sensor patch which may be connected to lower-power wireless sensor circuitry for regulating power efficiently and is powered by the FTENG.

Abstract: This invention provides methods and devices for the non-invasive measurement of select substances in human tissue such as, for example, blood glucose. The non-invasive methods and devices use a light source such as a laser diode for transmitting light energy pulses into human tissue. A piezoelectric component and/or ultrasonic transducer detects vibration of the tissue and generates an acoustic signal that is transmitted to a microcontroller. The concentration of the substance, for example, blood glucose is measured using at least one algorithm. Preferably, the device incorporates embedded machine learning (ML), artificial intelligence (AI), internet of things (IoT), app, and blockchain programming, wherein the programming is designed to encrypt and/or deidentify personal data and measurements.

Abstract: An applicator according to the present disclosure is an applicator for inserting a sensor for measuring biometric information into a user's skin, the applicator comprising: an applicator body; an insertion unit installed on the applicator body to move a sensor unit from a first position in which same is spaced apart from the user's skin to a second position in which the sensor is inserted into the user's skin, the sensor unit comprising the sensor, a sensor unit housing on which the sensor is mounted, an adhesive layer provided on the sensor unit housing, and a protective sheet covering the adhesive layer; and a moving tab to which a part of the protective sheet is coupled, the moving tab being movably installed on the applicator body to be movable by the user such that the protective sheet can be moved away from the sensor unit housing and thus separated from the adhesive layer.

Abstract: An analyte sensor system has a transcutaneous analyte sensor. A housing is provided that has a lower side configured to be attached to the skin of a patient. An infrared (IR) temperature sensor detects the temperature (i) of the lower side of the housing or (ii) of the skin through a hole in the lower side of the housing. The IR temperature sensor faces and is spaced from the lower side of the housing or is spaced from the skin. An electronics unit has a processor that receives analyte sensor signals from the transcutaneous analyte sensor and temperature sensor signals from the IR temperature sensor device. The analyte sensor system may also include a contact temperature sensor in contact with a part of the housing carrying the IR temperature sensor or in contact with the circuit board.

Abstract: Methods, apparatuses, and systems are provided for determining whether to administer a medication dose as a single dose or whether to fractionate the single dose to be administered as at least two discrete doses. Embodiments include determining a first analyte level and a first rate of change of the analyte level; determining an initial medication dose based on one or more anticipated subsequent medication doses, the first analyte level relative to an analyte level threshold, and the first rate of change of the analyte level relative to a rate of change threshold; administering the initial medication dose; determining a second analyte level and a second rate of change of the analyte level based on subsequent analyte data; and determining a subsequent medication dose based on the second analyte level relative to the analyte level threshold and the second rate of change relative to the rate of change threshold.

Abstract: Wireless, lightweight, and multifunctional chemical sensors and methods for detection of biomarkers in bodily fluids are described. Systems and methods are directed to an LC (inductor-capacitor) resonance circuit configured to detect multiple biomarkers in bodily fluids of a subject through frequency modulation. The system may be comprised within a wearable device or within a medical implant, depending on the implementation. The body fluid may comprise sweat, cerebrospinal fluid, blood, saliva, tears, mucus, gastric acid, and/or urine, for example. The biomarkers may comprise Na+, K+, Ca2+, H+, Cl—, glucose, urea, lactate, glutamate, serotonin, cortisol, dopamine, cytokines, and/or epinephrine, for example.

Abstract: The present disclosure provides systems and method for determining a property of an analyte in a sample, the systems and methods use a sensor assembly comprising a sensing element. The method and systems remove at least a portion of non-specifically-bound species from the sensing element by applying an electric field to the sample matrix, wherein the electric field is configured to remove the non-specifically-bound species but has a strength less than that required to detach any specifically-bound analyte from the sensing element.

Abstract: The present disclosure provides systems and method for determining a property of an analyte in a sample, the systems and methods use a sensor assembly comprising a sensing layer provided with through holes and a capture species configured to specifically bind with the analyte. The capture species is located adjacent and/or in the through holes such that analyte bound to the capture species can interact with the through holes of the sensing layer so as to alter the impedimetric property of the sensing layer. The sensing element provides a measurement signal which is indicative of an impedimetric property of the sensing layer and/or the sensing element comprises an IDE with at least a part of the sensing layer provided between electrodes of the IDE.

Abstract: Aspects of the current subject matter are directed to a sensor assembly of an analyte monitoring device including one or more microneedle arrays. Aspects are directed to components and architecture of a sensor assembly to implement power and processing aspects of a microneedle array-based continuous analyte monitoring device for the detection and measuring of an analyte. A source of a power-on event is determined, and the analyte monitoring device is transitioned to a mode that corresponds to the determined source. When a power-on event is determined to be a valid power-on event, the analyte monitoring device is transition to a mode that corresponds to a type of the valid power-on event.

Abstract: A system for transdermal alcohol sensing to be worn near a skin surface of a user, including: an alcohol sensor; a microporous membrane; a housing coupled to the alcohol sensor and the membrane, defining a volume between the alcohol sensor and a first membrane side, and fluidly isolating the volume from a second membrane side opposing the first membrane side; an electronics subsystem electrically coupled to the alcohol sensor, operable to power and receive signals from the alcohol sensor; and a fastener operable to position the second membrane side proximal the skin surface.

Abstract: A miniature analyte detection device, includes a base and at least two electrode groups. The base includes an internal part and an external part. The at least two electrode groups are located on the surface of the internal part, each electrode group includes at least one working electrode and at least one additional electrode. The external part is provided with a PAD corresponding to each electrode, and the PAD is electrically connected with the working electrode and the additional electrode respectively through a wire. The working electrode and the additional electrode are configured to trigger alternately into the working state according to the predetermined conditions when in use, so as to prolong the service life of the sensor, improve the service reliability and enhance the user experience.

Abstract: An inventive medical system has a housing with a first guiding surface. A preassembled module is received in the housing. The module includes electronics electrically connected to an analytical sensor, an insertion component configured for inserting the analytical sensor into body tissue of a user and a sterility cap at least partially surrounding the insertion component. The module has a second guiding surface. A protective cap is removably connected to the housing and covers the preassembled module. The protective cap is removable from the housing by pulling the protective cap from the housing. The first guiding surface guides the protective cap during the pulling of the protective cap from the housing and the second guiding surface guides the sterility cap during pulling the sterility cap from the insertion component. The length of the first guiding surface exceeds the length of the second guiding surface.

Abstract: A sample holder for collecting a liquid sample, such as blood. The holder can include a vessel, a conduit having a proximal end extending from the vessel and a distal end positioned in the vessel, and a cap configured to engage with the vessel and create pressure to move a liquid sample in the conduit to move from the proximal end to the distal end. A desiccant can be used to dry a blood sample during storage.

Abstract: An information processing apparatus is provided for measuring a level of cognitive function in a user. the information processing apparatus comprising circuitry configured to: acquire a function specific to a user, the function characterizing the user's perception of sound: generate an audio sound based on the function specific to the user, wherein the audio sound is generated. for the user, to originate from a source location within a three-dimensional environment: determine a second location within the three-dimensional environment from where the user considers the audio sound to have originated based on a response of the user to the generation of the audio sound: and measure the level of cognitive function in the user in accordance with a difference between the source location and the second location.

Abstract: Apparatus and methods for detecting a brain disorder in a subject include a display device and an eye tracker operatively connected to a processor, wherein the display device displays visual scenes to the subject according to at least one viewing task. The eye tracker tracks at least one of the subject's eyes while the subject performs the viewing task, and outputs eye tracking data. The 5 processor extracts data for one or more selected feature, and analyzes the data for the one or more selected feature using a classifier to determine one or more condition, validates the determined condition through comparisons to meta-data and the true condition if available, and generates an output based on the determined condition for the selected feature: wherein the output indicates the likelihood of the subject having a brain disorder.

Abstract: A stratification method includes: obtaining, for each of a plurality of subjects with mild cognitive impairment, a score of a result of a clinical psychological test performed on the subject and a hippocampus volume of the subject; classifying each of the plurality of subjects into one of a plurality of groups based on the score of the subject and the hippocampus volume of the subject, the plurality of groups including at least a first group at a relatively high risk of future progression to Alzheimer's disease and a second group at a relatively low risk of future progression to Alzheimer's disease; and outputting a classification result of the classifying.

Abstract: A flexible sensor configured for use in a bladder is flexible and moveable from a first position in which it is configured to not be discharged from the bladder to a second position in which it is configured to be inserted into the bladder. A sensor insertion tool includes an over sheath, a push rod configured to be inserted into a first lumen of the over sheath. The flexible sensor is positioned in the first lumen of the over sheath, the push rod is then inserted partially into the over sheath behind the flexible sensor. The sensor insertion tool is then positioned at a location, such as the opening to the bladder, in which the sensor is to be deployed.

Abstract: A conductive layer structure for application to a surface of a subject, in particular for use in medical products, includes a first conductive layer having at least one electrically conductive path. The conductive layer structure includes at least a further conductive layer having at least one electrically conductive path, and at least one intermediate layer extending at least partially between the first and further conductive layer. At least portions of the first and further conductive layer are arranged above one another within the layer structure. Further, the layer structure is elastically stretchable.

Abstract: Herein disclosed include a flexible electronic device comprising a first component comprising a first biphasic portion, a second component, wherein the first component and the second component are in contact with an electrically conductive stretchable interface configured between the first component and the second component, wherein the electrically conductive stretchable interface comprises the first biphasic portion which is adhered to a portion of the second component, and wherein the first biphasic portion comprises a first polymer having (i) a surface partially covered with metal nanoparticles which are partially exposed at the surface, and (ii) metal nanoparticles which are completely embedded in the first polymer. The disclosure also includes a method of forming the flexible electronic device.

Abstract: Provided is a biological information acquisition system capable of acquiring an electric parameter and biological information that are more accurate. A biological information acquisition system 200 includes a flexible electrode sheet 100 having multiple electrodes 30 arranged in an array, an electrode selector that acquires an electric parameter from the multiple electrodes 30 in a state in which the electrode sheet 100 is arranged along a biological body 300 such that the multiple electrodes 30 do not contact the biological body 300 to select the electrodes 30 to be used for acquisition of biological information based on the acquired electric parameter, and a biological information acquirer that acquires the biological information from the electrodes 30 selected by the electrode selector in a state in which the electrode sheet 100 is arranged along the biological body 300 such that the multiple electrodes 30 do not contact the biological body 300.

Abstract: A catheter system to record and map electrical signals by cardiac tissues before, during, and/or after the treatment of cardiac arrhythmias in a group of patients. The system can include an elongated body; a distal electrode assembly comprising a proximal stem, a plurality of spines emanating from the stem; and a plurality of nonconductive spine covers, each surrounding a respective spine. Each spine can cover one or more tensile members of the respective spine cover. The system can be configured to achieve clinically improved performance and safety of catheter configurations as to accessibility into target areas of a beating heart.

Abstract: A method for early detection of a heart attack in a subject. The method includes acquiring a plurality of clinical symptoms from the subject, acquiring a gender of the subject, acquiring an age of the subject, acquiring a raw ECG signal from the subject, generating an averaged ECG signal from the raw ECG signal, acquiring a plurality of ECG features from the averaged ECG signal, designing a fuzzy inference system based on a set of rules associated with the plurality of clinical symptoms, the gender, the age, and the plurality of ECG features, and determining an occurrence of the heart attack utilizing the fuzzy inference system.

Abstract: According to an aspect there is provided systems, methods, and non-transitory computer readable mediums with instructions for R-peak detection from electrocardiogram (ECG) stored thereon. The method includes pre-processing and smoothing a data stream, detecting R-peaks in an initial time interval, generating a predicted time point of a first new R-peak by predicting a probabilistic distribution of the new R-peak following a last R-peak in the initial time interval with History Dependent Inverse Gaussian (HDIG) distribution, detecting the first new R-peak by searching for the first new R-peak around the predicted time point of the first new R-peak in an adaptive searching interval, detecting remaining R-peaks iteratively, computing heart rate metrics using the detected R-peaks. Peaks with largest amplitudes passing the varying adaptive threshold are detected as the R-peaks. The heart rate metrics being one or more of average heart rate, accuracy, F1-score, sensitivity, precision, and heart rate variability.

Abstract: This specification relates to the classification and/or decoding of brain activity signals, such as electroencephalogram (EEG) signals, using machine-learning techniques. According to one aspect of this specification, there is described a computer implemented method of classifying brain activity signals. The method comprises: receiving a plurality of channels of brain activity signals; generating a plurality of channels of filtered brain activity signals by applying a plurality of filters to the received channels of brain activity signals, wherein the plurality of filters comprises a plurality of learned parameterised bandpass filters; determining, using a differentiable feature module, a plurality of feature maps from the plurality of channels of filtered brain activity signals; and determining, using a classification model, one or more classifications for the received plurality of channels of brain activity signals based on the determined feature maps.

Abstract: Disclosed herein is a pattern recognition and feature extraction system and method configured to detect and analyze non-stationary, transient, or locally structured signals from longer time-series data of obtained beta waveforms of an animal to characterize a biomarker of a brain state or condition. An example system comprises a computing device configured to process obtained recordings of electrical activity arising from a brain of an animal for detecting beta wave events. A first representation of short-time segments may be generated to represent amplitude fluctuations indicating extrema and time-domain features in the beta wave events and a second representation for identifying temporal positions of the extrema in the first representation. The computing device compares statistical distributions of feature characteristics and generates mean waveforms of signals from at least one condition aligned by the temporal positions assigned to one of extracted feature types to indicate a brain state of the animal.