Abstract: Wearable devices are described herein including a housing and a mount configured to mount the housing to an external surface of a wearer. The wearable devices further include first and second electrical contacts protruding from the housing and configured such that the electrical contacts can be used to measure a Galvanic skin resistance of skin proximate to the electrical contacts when the wearable device is mounted to the external surface of the wearer. The electrical contacts are additionally configured to deliver an electro-haptic stimulus to skin proximate to the electrical contacts when the wearable device is mounted to the external surface of the wearer. Electro-haptic stimulus could be delivered to a wearer to indicate information to the wearer, including information about a health or activity state of the wearer, about communications received by the wearable device, and about alerts generated by the wearable device.

Abstract: A cable includes a flexible jacket extending along a length and first and second lateral axes perpendicular to the length. The jacket also defines flat major surfaces that are parallel to each other and spaced apart on opposite sides of the first lateral axis. First and second inner wire assemblies extend within the jacket. The jacket maintains the first and second inner wire assembles in predetermined positions along the first lateral axis within 0.05 mm of each other and disposed on opposing sides of the second lateral axis. First and second outer wire assemblies also extend within the jacket. The outer wire assemblies include a wire of conductive filaments and an insulating layer of an enamel material surrounding the wire. The jacket maintains the first and second outer wire assemblies in positions along the first lateral axis and spaced apart from the first and second inner wire assemblies.

Abstract: A light source emits light into a first portion of a living body. Functionalized particles within the body are configured to specifically bind to a target analyte, and upon receiving the emitted light, undergo a reaction that separates a detectable label from the functionalized particle. A sensor device is configured to detect a response signal from a second portion of the living body that is indicative of an abundance of the detectable label in the second portion. A control system uses the sensor device to obtain sensor data indicative of the response signal from the second portion of the living body detected by the sensor device during a measurement interval, and determines a presence or absence of the target analyte within the first portion of the living body based in part on the obtained data.

Abstract: A method for transmitting, storing and sharing data collected by a wearable device is provided. In one example, data related to one or more measurements obtained by the wearable device configured to be mounted to a body surface of a wearer is received in addition to an input by the wearer of the device. The input selects at least one identification rule that determines whether or how the wearer is identified in connection with the data from the wearable device. The data is stored in a database based, at least in part, on the at least one identification rule. The input from the wearer may also select at least one permission rule that determines whether third parties can access the data from the wearable device. A third party may be required to provide payment for access to or use of the data according to the at least one permission rule.

Abstract: Wearable devices are described herein including a housing and a mount configured to mount the housing to an external surface of a wearer. The wearable devices further include first and second electrical contacts protruding from the housing and configured such that the electrical contacts can be used to measure a Galvanic skin resistance of skin proximate to the electrical contacts when the wearable device is mounted to the external surface of the wearer. The electrical contacts are additionally configured to deliver an electro-haptic stimulus to skin proximate to the electrical contacts when the wearable device is mounted to the external surface of the wearer. Electro-haptic stimulus could be delivered to a wearer to indicate information to the wearer, including information about a health or activity state of the wearer, about communications received by the wearable device, and about alerts generated by the wearable device.

Abstract: Wearable devices are described herein including a housing and a mount configured to mount the housing to an external surface of a wearer. The wearable devices further include first and second electrical contacts protruding from the housing and configured such that the electrical contacts can be used to measure a Galvanic skin resistance of skin proximate to the electrical contacts when the wearable device is mounted to the external surface of the wearer. The electrical contacts are additionally configured to deliver an electro-haptic stimulus to skin proximate to the electrical contacts when the wearable device is mounted to the external surface of the wearer. Electro-haptic stimulus could be delivered to a wearer to indicate information to the wearer, including information about a health or activity state of the wearer, about communications received by the wearable device, and about alerts generated by the wearable device.

Abstract: Wearable devices are described herein including a housing and a mount configured to mount the housing to an external surface of a wearer. The wearable devices further include first and second electrical contacts protruding from the housing and configured such that the electrical contacts can be used to measure a Galvanic skin resistance of skin proximate to the electrical contacts when the wearable device is mounted to the external surface of the wearer. The electrical contacts are additionally configured to measure a capacitance between electrical contacts. The measured capacitance between the electrical contacts could be related to a capacitance of skin proximate to the electrical contacts when the wearable device is mounted to the external surface of the wearer. The wearable devices further include an electronically switched capacitor connected between the electrical contacts that can be operated to enable the Galvanic skin resistance and capacitance measurements described above.

Abstract: Wearable devices are described herein including at least two photodetectors and a mount configured to mount the at least two photodetectors to an external surface of a wearer. The at least two photodetectors are configured to detect alignment between the wearable device and a target on or in the body of the wearer (e.g., to detect the location of vasculature within the body of the wearer relative to the at least two photodetectors). Alignment of the at least two photodetectors relative to the target could enable detection of one or more physiological properties of the wearer. For example, the wearable device could include a sensor configured to detect a property of the target when the sensor is above the target, and alignment of the target relative to the at least two photodetectors could include the sensor being located above the target.

Abstract: Wearable devices configured to detect a magnetic field related to the presence, proximity, relative location, relative orientation, configuration, identity, or other information about an eternal charger or other external device are provided. The wearable devices are configured to detect, using one or more magnetometers, magnetic fields produced by (e.g., by permanent magnets or electromagnets) and/or modified by (e.g., by a shim or other element of magnetic material configured to have a specified high permeability) the external charger. The wearable device can change an operational state, display some information, receive power from the external charger to charge a battery of the wearable device, or perform some other function in response to determining some information about the external charger based on the detected magnetic field.

Abstract: Systems and methods are provided for determining the frequency of a cardiovascular pulse based on a first physiological signal that is continuously available and a second physiological signal that is less available and that is more accurate or otherwise improved relative to the first signal with respect to pulse rate estimation. When the second signal is available it controls the determination of the pulse rate. When the second signal is unavailable, the first signal is used to determine the pulse rate. This can include using the first signal to estimate the pulse rate until the second signal is available, at which point the pulse rate is estimated based on the second physiological signal. Alternatively, the first signal could be used to determine a number of candidate pulse rates, and the second signal could be used to select a pulse rate from the set of candidate pulse rates.

Abstract: An electronic device is configured to perform a power cycle reset in response to a change in charging power applied to the device. The device includes an electrical load with a microprocessor, a battery, a charging circuit that receives power from an external power source and uses the received power to charge the battery, and a control circuit that regulates the power cycle reset operation. The power supply circuit selectively uses the battery to power the device by coupling the load to a power supply path and discharges the load by coupling the load to a discharge path. The control circuit receives, from the charging circuit, an indication of a change in power applied to the charging circuit and responsively generates a control signal and applies the control signal to the power supply circuit, which causes the power supply circuit to temporarily couple the load to the discharge path.

Abstract: Devices are described herein including mounts configured to removably mount electrodes and other elements of the devices to a garment (e.g., a close-fitting undergarment) of a wearer. The devices include at least two electrodes configured such that the electrodes are maintained in secure electrical contact with skin of the wearer when the device is so mounted. The devices can be mounted to garments at various locations on the torso of the wearer such that an electrocardiographic signal related to the electrical activity of the heart of the wearer can be extracted from voltage fluctuations between the at least two electrodes. Such devices can be used for continuous logging or other applications of the electrocardiographic signals of the wearer. Such logged electrocardiographic signals could be used to determine a medical or health state of the wearer.

Abstract: Wearable devices are described herein including at least two photodetectors and a mount configured to mount the at least two photodetectors to an external surface of a wearer. The at least two photodetectors are configured to detect alignment between the wearable device and a target on or in the body of the wearer (e.g., to detect the location of vasculature within the body of the wearer relative to the at least two photodetectors). Alignment of the at least two photodetectors relative to the target could enable detection of one or more physiological properties of the wearer. For example, the wearable device could include a sensor configured to detect a property of the target when the sensor is above the target, and alignment of the target relative to the at least two photodetectors could include the sensor being located above the target.

Abstract: Devices and systems are provided to electrically and optically detect hemodynamic properties of a body. Such devices are configured to detect electrocardiographic signals and photoplethysmographic signals and to operate a single analog-to-digital converter (ADC) to sample one or more of each of such signals. This includes operating a multiplexer to connect electrical signals related to the detected optical and electrical properties to the single ADC during respective different sampling times or periods. This can include connecting the detected electrocardiographic signals and photoplethysmographic signals to the ADC during alternating periods of time. Using a single ADC to sample one or more of each of electrocardiographic signals and photoplethysmographic signals can provide samples of such signals that have a relative timing that is known, stable, and controllable.

Abstract: Wearable devices are described herein that include a housing, a magnetic shielding, and a coil. The housing includes a first outer surface, a second outer surface opposite the first outer surface, the second outer surface being narrower than the first outer surface and being configured to contact skin at an external body surface, and a chamfer of a given shape between the first outer surface and the second outer surface. The magnetic shielding is disposed in the housing between the first and second outer surfaces. The coil is disposed in the housing and configured to receive energy via a magnetic field. The coil includes coil windings that substantially fit the shape of the chamfer, where the coil windings include a first portion of windings proximate to the magnetic shielding and further include a second portion of windings narrower than the first portion and proximate to the second outer surface.

Abstract: Wearable devices are provided including electrical contacts to detect voltages or other biosignals when mounted to the skin of a wearer. The impedance between a pair of the electrical contacts can be detected and the device operated based on the detected impedance. The device can detect an electrocardiogram or other biopotentials using the electrical contacts if the detected impedance falls below a specified threshold. The device could indicate that the detected impedance is below the specified threshold, e.g., such that a wearer could contact one of the electrical contacts with a finger to allow detection of an electrocardiogram between the arms of the wearer. The device could indicate that the detected impedance remains greater than the specified threshold, e.g., such that a wearer could re-mount the wearable device to improve the electrical connection between the electrical contacts and the wearer's skin.

Abstract: Embodiments described herein may help to provide an extension of touchpad sensing to adjacent surfaces. An example device may involve: (a) a touchpad having a first surface, (b) at least one electrode coupled to at least one location on the first surface, where at least a portion of the at least one electrode is arranged on a second surface that is adjacent to the first surface so that a touch to the portion of one of the electrodes on the second surface causes the touchpad to output data relating to the corresponding location on the first surface, and (c) and a control system configured to: (1) receive a first signal that is indicative of touch input on the touchpad, and (2) detect, in the first signal, data relating to the corresponding location on the first surface and responsively output a second signal relating to a touch of one of the electrodes on the second surface.

Abstract: Wearable devices are described herein including a housing and a mount configured to mount the housing to a wrist of a wearer. The wearable devices further include first and second electrical contacts configured such that the first electrical contact is in contact with skin proximate of the wrist when the wearable device is so mounted. The second electrical contact is disposed on a surface of the wearable device away from the wrist such that, when the wearer contacts the second electrical contact with a finger or other element of the arm opposite the wrist, an electrocardiographic waveform of the wearer can be extracted from voltage fluctuations between the first and second electrodes. Such wearable devices can be used for periodic logging or other applications of the electrocardiographic waveforms of the wearer. Such logged electrocardiographic waveforms could be used to determine a medical or health state of the wearer.

Abstract: An auxiliary component unit for use with a head-mounted device is disclosed. The device can have a first side arm with and an extension arm extending at least partially therealong and configured to present information to the user via a display extending therefrom, a second side arm opposite the first side arm, and an external connection feature. The auxiliary component includes a first housing containing a first electronic component therein and a first attachment member extending from the first housing and configured to removably affix the auxiliary component with a portion of the second side arm of the head-mounted device. The auxiliary component also includes a wiring component in electronic communication with the first electronic component and attachable with the external connection feature of the device.

Abstract: Systems and methods are described that may provide audio information about an environment around a wearable device. Such audio information may be correlated with other biometric data to provide physiological information, e.g. regarding a wearer of the wearable device. For example, an illustrative method includes receiving an audio signal via a microphone of a wearable device and rectifying the audio signal with a peak detector. The method further includes amplifying the rectified signal with a logarithmic amplifier and causing an analog to digital converter (ADC) to sample the logarithmic signal. The method also includes causing the ADC to convert the sampled logarithmic signal to a digital output and storing the digital output in a memory of the wearable device. In some embodiments, the method includes transmitting the digital output to a computing device, which may correlate the digital output with other biometric data.