A database for mapping off-road terrain of various characteristics in three-dimensional terms, comprising: a plurality of road segment entries, each containing data pertaining to the terrain characteristics of the segment; and a plurality of elbow entries, each containing (x, y, z) coordinates of the elbow and a record for each road segment having the elbow as one of its end points, the record comprising navigation directives for vehicles entering the segment from the elbow.

In embodiments of wearable device heart monitor systems, a wearable device has electrical contacts integrated in a housing base of the wearable device as electrodes designed to contact skin of a user while wearing the wearable device. A housing bezel of the wearable device designed as an additional point of contact on the wearable device. The wearable device includes an electromyography (EMG) system to receive electrical signals from at least two of the electrodes and detect muscular movement of the user. Further, the wearable device includes an electrocardiogram (ECG) system to receive and combine the electrical signals from the electrodes when the user touch contacts the housing bezel while wearing the wearable device to complete an ECG loop between the electrodes and the housing bezel for a heart rate reading of the user.

A wearable medical device includes an electrode assembly having a plurality of ECG sensing electrodes configured to monitor a cardiac condition of a patient using the device, a call button to initiate a call with a remote location and a transceiver configured to communicate information to and from the wearable medical device. The device includes a memory and a controller having at least one processor configured to execute instructions stored in the memory. The instructions include receiving, via actuation of the call button, a request to initiate a communication link with the remote location, providing, via a user interface, a confirmatory prompt that the patient indicate confirmation to proceed with the request to initiate the communication link with the remote location, and initiating, via the transceiver, the communication link to the remote location responsive to the indication of the confirmation to proceed with the request to initiate the communication link.

A measurement device (1) performs filtering processing via an analog filter (403) with a predetermined transfer function on a first signal indicating a pulse wave of a subject and a second signal indicating a pulse wave or an electrocardiogram of the subject; performs filtering processing via a digital filter with the predetermined transfer function on third time series data, which is first time series data of the first signal arranged in reverse chronological order, and fourth time series data, which is second time series data of the second signal arranged in reverse chronological order; and calculates a pulse transit time on the basis of a signal indicated by fifth time series data, which is the third time series data post filtering processing arranged in chronological order, and a signal indicated by sixth time series data, which is the fourth time series data post filtering processing arranged in chronological order.

A system that detects heartbeats includes a sensor or a transducer and algorithms based on deep learning. The algorithms employ techniques of artificial intelligence that enable the system to extract heartbeat features under low signal-to-noise-ratio (SNR) conditions when a user is exercising. The algorithms can be applied to various technologies for heart rate monitoring such as ultrasound Doppler, photoplethysmogram (PPG), electrocardiogram (EKG), acoustic, pressure/force sensing and laser/RF Doppler, among other types of sensing methods.

A cuff-type monitoring device, for collecting cardiovascular data relating to an individual user, comprising a control unit housing including a pump, a cuff assembly including a resilient cuff holder and an interface member arranged at the control unit housing, provided integral with the control unit housing or as a separate part, wherein there is provided at least a pneumatic coupling and an electrical coupling through the interface member, for coupling the cuff assembly to the control unit housing, wherein the resilient cuff holder comprises two retaining members, the interface member comprising two complementary retaining members, configured to be snap-fit with the retaining members, and assembly method to assemble the device.

Methods, systems, computer-readable media, and apparatuses for obtaining at least one bodily function measurement are presented. A mobile device includes an outer body sized to be portable for user, a processor contained within the outer body, and a plurality of sensors physically coupled to the outer body. The sensors are configured to obtain a first measurement indicative of blood volume and a second measurement indicative of heart electrical activity in response to a user action. A blood pressure measurement is determined based on the first measurement and the second measurement. The sensors also include electrodes where a portion of a user's body positioned between the electrodes completes a circuit and a measurement to provide at least one measure of impedance associated with the user's body. A hydration level measurement is determined based on the measure of impedance.

Aspects of the disclosure can provide a method and device for detecting EEG signals of a first person in proximity to the device. The device can include a non-contact EEG directional circuit having non-contact sensors, the non-contact EEG directional circuit being configured to detect the EEG signals produced by a brain of the first person without making contact with the first person. The device can further include a processor coupled to the non-contact EEG directional circuit that is configured to analyze the EEG signals to detect patterns in the EEG signals that correspond to a state of the first person in proximity to the non-contacting sensor and a feedback device that is configured to provide a second person with an indication of the state of the first person in proximity to the non-contacting sensor. Additionally, the device can include a contact EEG circuit having sensors that are in contact with the second person and that is configured to detect second EEG signals produced by a brain of the second person, wherein the processor is coupled to the contact EEG circuit and is configured to analyze the second EEG signals to detect patterns in the second EEG signals that correspond to a state of second the person.

Methods, devices and machine readable programs are presented for measuring blood pressure using a device configured to guide a user regarding placement of an anatomical region of interest in relation to a sensor. The methods can includes measuring, by the sensor, a pressure applied to the sensor and measuring, by the sensor, blood volume oscillations in the anatomical region of interest while pressure is being applied to the sensor by the anatomical region of interest. The methods can further include estimating, by processing circuitry (e.g, computer processor(s), memory and the like) of the device, a blood pressure value for the user from the measured pressure and the measured blood volume oscillations.

A method of monitoring a health status of a patient using a monitoring system comprising a pair of finger ring electrocardiogram (ECG) monitors. Each finger ring monitor comprises an inner ring member and an outer ring member positioned radially outward from and operably connected to the inner ring member. The inner ring member of each monitor features a conductor characterized by at least one physiological-type sensor, and an annular bladder that defines an adjustable aperture sized to receive a left-hand finger of a patient and a right-hand finger of the patient, respectively. Upon triggering by positioning the pair of finger ring ECG monitors substantially together, the conductors of each of the finger ring ECG monitors are configured to receive biopotential signals from skin on the fingers of the patient.