A system includes at least one earpiece, wherein each earpiece comprises an earpiece housing, an optical source operatively connected to the earpiece housing, wherein the optical source is configured to emit light toward an ear surface, an optical sensor operatively connected to the earpiece housing, wherein the optical sensor is configured to receive reflected light from the ear surface, and at least one processor disposed within at least one earpiece and operatively connected to the optical source and the optical sensor, wherein the at least one processor is configured to separate the pulse oximetry signals from the audio signals in the reflected light detected by the optical sensor.

A method for signaling a measured and/or a predetermined vital parameter and/or vital parameter pattern for a vehicle occupant in a vehicle involves arranging a functional element set up to have a visual and/or audible and/or haptic effect on at least one vehicle occupant, and a measured and/or a predetermined vital parameter and/or vital parameter pattern is signaled non-verbally by the functional element.

Devices and methods for generating synthetic cardio-respiratory signals from one or more ballistocardiogram (BCG) sensors. A method for determining item specific parameters includes obtaining ballistocardiogram (BCG) data from one or more sensors, where the one or more sensors capture BCG data for one or more subjects in relation to a substrate. For each subject, the captured BCG data is pre-processed to obtain cardio-respiratory BCG data. The cardio-respiratory BCG data is sub-sampled to generate the cardio-respiratory BCG data at a cardio-respiratory sampling rate conducive to cardio-respiratory signal generation. The sub-sampled cardio-respiratory BCG data is cardio-respiratory processed to generate a cardio-respiratory parameter set. A synthetic cardio-respiratory signal is generated from at least the cardio-respiratory parameter set and a cardio-respiratory event morphology template. A condition of the subject is determined based on the synthetic cardio-respiratory signal.

A magnetometer-based metal detection device and methods of use are described. The device includes a proximal portion, a central body and a distal portion, and at least one magnetometer positioned within or on the distal portion. The at least one magnetometer includes at least one sensor capable of sensing a magnetic field in three orthogonal axes. Also described is a method of calibrating the device to achieve rotational invariance, and a method of determining a directionality or directional line along which a target metal object lies.

The present invention relates to a liquid information sensor comprises at least more than one electrode set including a first electrode, and a second electrode which is disposed spaced apart from the first electrode and to which an alternating current signal is applied between the first electrode and the second electrode; and a ferroelectric layer including a first side in contact with the first electrode and the second electrode and a second side facing the first side and defining a receiving area for receiving the target liquid, and generating sound waves by physical vibration when the AC signal is applied.

A processing device in one embodiment is configured to generate a first sound cue of a first type, the first sound cue comprising a primary entrainment cue for an entrainment sonification system, to generate one or more additional sound cues of a second type, each of the one or more additional sound cues comprising an auxiliary entrainment cue for the entrainment sonification system, to provide the first sound cue and the one or more additional sound cues to one or more audio devices of the entrainment sonification system for generation of sound for audible presentation to a user, to receive from one or more sensors of the entrainment sonification system one or more feedback signals, and to adjust one or more characteristics of at least one of the first sound cue and the one or more additional sound cues based at least in part on the one or more received feedback signals.

Techniques (methods and devices) for neural stimulation through audio with dynamic modulation characteristics are disclosed. The techniques include receiving a mapping of sensor-input values and modulation-characteristic values, wherein each sensor-input value corresponds to a respective modulation-characteristic value; receiving an audio element from an audio source, wherein the audio element comprises at least one audio parameter; identifying an audio-parameter value of the audio parameter; receiving a sensor-input value from a sensor; determining a sensor-input value based on the sensor-input value; selecting from the mapping of sensor-input values and modulation-characteristic values, a modulation-characteristic value that corresponds to the sensor-input value; generating an audio output based on the audio-parameter value and the modulation-characteristic value; and playing the audio output.

A transparent device with bio-signal acquisition and feedback capabilities is provided, and includes a base that includes at least one actuator, a transparent container connected to the base, first and second electrodes disposed on the base, a body temperature sensor, a photoplethysmography (PPG) sensor module, and a bio-signal acquisition module that has an electrocardiographic (ECG or EKG) sensor function and acquires an ECG signal, a PPG signal, and a body temperature signal of the user. The bio-signal acquisition module determines physiological indices by using a preset algorithm and controls the at least one actuator to provide corresponding visual or auditory feedbacks in real time according to the physiological indices and an extended cardiac index of the user.

A bed comprises substrate support members, each including a load bearing and a base configured to provide contact with a floor. The load bearing member is configured to move vertically relative to the base, while the base and the load bearing member are configured to fit together to maintain lateral alignment of the base and the load bearing member. A load sensor is positioned between the base and the load bearing member, the load bearing member configured to transmit a load from the substrate to the load sensor. A printed circuit board is in communication with the load sensor. A controller is in communication with the printed circuit board of each substrate support member and is configured to receive and process data output by the printed circuit boards.

Provided are systems and methods for improving movement irregularities.