A biological information measurement device, including an electrode contact state detector including a first contact detection circuit connected to either the first electrode or the second electrode among the electrodes, a second contact detection circuit connected to the third electrode, and a contact state determinator for determining a contact state indicating which of the electrodes is in contact with a surface of the measurement target based on a first signal output from the first contact detection circuit and a second signal output from the second contact detection circuit, and an input receiver for receiving a contact of the electrode with respect to the surface of the measurement target as input of predetermined operation associated with the contact state.

An electronic device is disclosed, including a housing including a first surface forming a front surface of the electronic device, a second surface facing away from the first surface, and a side surface surrounding an interior space defined between the first surface and the second surface, a key structure forming part of the side surface and extending into the interior space, the key structure including an electrode member partially exposed to an exterior environment, wherein the electrode member partially extends into the interior space, a display disposed in the housing so as to be visible through the first surface from the exterior environment, an internal structure disposed between the display and the second surface, wherein the internal structure includes a printed circuit board, and a conductive structure protruding from the internal structure, wherein the conductive structure is electrically connected with the electrode member of the key structure.

Methods of measuring biometric characteristics using a sensor positioned in an ear canal of a user are provided. The sensor is positioned on or connected to an ear tip, a contact hearing device, or one or more components thereof. One or more biometric signals may be sensed from the sensor. The biometric characteristic of the user is measured or derived from these sensed signals, and include but are not limited to the temperature of the user, acoustic signal(s) from the user, movement(s) of the user, a ballistocardiogram, an electrocardiogram, oxygen saturation, and blood pressure.

Provided is a WCD system, including a collection module, a master control module and a defibrillation module; the collection module collects a signal, and has human body motion detection and vibration prompting functions; the master control module has a VF/VT analysis algorithm to analyze the collected signal, and can control a power supply of the defibrillation module; the defibrillation module has the VF/VT analysis algorithm and a defibrillation control function. Through the independent defibrillation module and the independent collection module, the reliability of the system can be improved.

Provided is a WCD system, including a collection module, a master control module and a defibrillation module; the collection module collects a signal, and has human body motion detection and vibration prompting functions; the master control module has a VF/VT analysis algorithm to analyze the collected signal, and can control a power supply of the defibrillation module; the defibrillation module has the VF/VT analysis algorithm and a defibrillation control function. Through the independent defibrillation module and the independent collection module, the reliability of the system can be improved.

A wearable device for monitoring physical activity of a user, the wearable device being reversibly attachable to a chest strap and an arm strap. The wearable device comprises an ECG sensor arranged to collect ECG measurements of the user only when the wearable device is attached to the user's chest by the chest strap, and a PPG sensor arranged to collect PPG measurements of the user when the wearable device is attached to the user's arm or wrist by the arm strap. The wearable device also comprises control circuitry arranged to switch the wearable device between an ECG only mode and a PPG only mode. In the ECG only mode, the control circuitry is configured to control the ECG sensor to collect ECG measurements but prevent the PPG sensor from initiating PPG measurements. In the PPG only mode, the control circuitry is configured to control the PPG sensor to initiate PPG measurements but prevent the ECG sensor from collecting ECG measurements.

A wearable device for monitoring physical activity of a user, the wearable device being reversibly attachable to a chest strap and an arm strap. The wearable device comprises an ECG sensor arranged to collect ECG measurements of the user only when the wearable device is attached to the user's chest by the chest strap, and a PPG sensor arranged to collect PPG measurements of the user when the wearable device is attached to the user's arm or wrist by the arm strap. The wearable device also comprises control circuitry arranged to switch the wearable device between an ECG only mode and a PPG only mode. In the ECG only mode, the control circuitry is configured to control the ECG sensor to collect ECG measurements but prevent the PPG sensor from initiating PPG measurements. In the PPG only mode, the control circuitry is configured to control the PPG sensor to initiate PPG measurements but prevent the ECG sensor from collecting ECG measurements.

An exemplary embodiment of the present disclosure provides systems and methods for non-invasively measuring blood pressure, the system and methods comprise a wearable device having a first surface, a first sensor positioned on the first surface of the wearable device, the first sensor configured to receive a first signal, wherein the first signal is indicative of a first blood-volume change in a first vessel of a subject, a second sensor positioned within the wearable device, the second sensor configured to receive a second signal, wherein the second signal is indicative of a cardiac mechanical motion of the subject, and a processor positioned within the wearable device, the processor configured to generate an output based at least on the first signal and the second signal, the output representing a blood pressure measurement of the subject.

Provided are an electronic device and a wearable device. In the electronic device, a contact surface is provided on an outer surface of a housing; an accommodating space is formed inside the housing; a connecting head is provided on the housing and is used for electrical connection to a power source to transmit electric energy for the electronic device. A first electrode and a second electrode are provided on the contact surface at intervals and are used as measuring electrodes of an ECG signal detection circuit; each of the first and second electrodes is electrically connected to the connecting head; and a mainboard is electrically connected to the connecting head and is used for obtaining ECG parameters according to ECG signals acquired by the first electrode and second electrode.

Provided are an electronic device and a wearable device. In the electronic device, a contact surface is provided on an outer surface of a housing; an accommodating space is formed inside the housing; a connecting head is provided on the housing and is used for electrical connection to a power source to transmit electric energy for the electronic device. A first electrode and a second electrode are provided on the contact surface at intervals and are used as measuring electrodes of an ECG signal detection circuit; each of the first and second electrodes is electrically connected to the connecting head; and a mainboard is electrically connected to the connecting head and is used for obtaining ECG parameters according to ECG signals acquired by the first electrode and second electrode.