An estimation method includes: transmitting transmission signals using M transmission antenna elements; receiving reception signals by N reception antenna elements; calculating, from the reception signals, a first matrix whose components are complex transfer functions indicating propagation characteristics between the transmission antenna elements and the reception antenna elements; estimating, using the first matrix, a position and an orientation of a living body relative to an estimation device; when the estimated position is in a first identification region and the estimated orientation is in a predetermined range from a first direction, identifying the living body based on time waveforms of the reception signals and a first training signal which is obtained in advance in the first identification region and corresponds to the living body; and adding, as an identification region for identifying the first living body identified, a new identification region based on an estimated position of the first living body identified.

The present invention relates to a terahertz biometric imaging arrangement configured to be arranged under an at least partially transparent display panel and configured to capture an image of an object located on an opposite side of the transparent display panel, the biometric imaging arrangement comprising: a transmitter element arranged to emit terahertz radiation for illuminating the object; and an image sensor comprising an antenna pixel array arranged to detect terahertz radiation transmitted from the illuminated object, for producing an image.

A method and system that is integrated in order to provide an automated control system for the user, which provides messaging to bedroom environmental control systems as a function of the status of the user's sleep state is disclosed herein. The system comprises a sleep monitoring sub-system and a bedroom environmental control sub-system. The sleep monitoring sub-system is configured to transmit the subject's sleep progression data to an interface for the bedroom environmental control system. The bedroom environmental control system is configured to modify a bedroom environment based on the subject's sleep progression data.

The present invention relates to a passive terahertz biometric imaging device configured to be arranged under an at least partially transparent display panel and configured to capture a terahertz image of an object located on an opposite side of the transparent display panel, the terahertz biometric imaging device comprising: an image sensor comprising an antenna pixel array arranged to detect terahertz radiation produced by the object, for capturing a terahertz image of the object.

Cardiovascular or respiratory data of a subject is measured using a multi-sensor system. The multi-sensor system includes a mm-wave FMCW radar sensor, an IMU sensor, and one or more proximity sensors. The mm-wave FMCW radar sensor may be selected and its view angle adjusted based on positioning data regarding the subject obtained from the one or more proximity sensors. Each of the mm-wave FMCW radar sensor and the IMU sensor may acquire cardiovascular or respiratory measurements of the subject, and the measurements may be fused for improved accuracy and performance.

A system is provided for wireless transmission of data and/or power using an on-body antenna apparatus (40) and an implant device inside the body. The system comprises the implant device and the on-body antenna apparatus (40) as well as an antenna control system. The implant device, is for use within the body and comprises an implant antenna (16) arranged to receive wirelessly transmitted power and/or to wirelessly transmit data. The on-body antenna apparatus (40) is arranged to transmit power and/or data acting as a radiative antenna, wherein the on-body antenna apparatus (40) comprises a pair of patch antennas (42) arranged to be placed on the surface of the body (44) spaced apart from one another to form an antenna circuit that is coupled by the body tissue around and between the patch antennas (42). The antenna control system is for providing power to the on-body antenna apparatus (40) and/or for handling communications between the on-body antenna apparatus (40) and the implant antenna (16), wherein the antenna control system is arranged to drive the on-body antenna apparatus (40).

Methods for training a model for use in monitoring a health parameter in a person are disclosed. In an embodiment, a method involves monitoring a blood pressure of a person using a control blood pressure monitoring system, receiving control data that corresponds to the monitoring using the control blood pressure monitoring system, receiving stepped frequency scanning data that corresponds to radio waves that have reflected from blood in a blood vessel of the person, wherein the stepped frequency scanning data is collected through multiple receive antennas over a range of frequencies, generating training data by combining the control data with the stepped frequency scanning data in a time synchronous manner, and training a model using the training data to produce a trained model, wherein the trained model correlates stepped frequency scanning data to values that are indicative of a blood pressure of a person.

Methods, devices, and systems for contactless cough detection and attribution are presented herein. Audio data may be received using a microphone. A cough may be identified as having occurred based on the received audio data. Radar data may be received indicative of reflected radio waves from a radar sensor. A state analysis process may be performed using the received radar data. The detected cough may be attributed to a particular user based at least in part on the state analysis process performed using the radar data.

A system and method to measure the intraocular pressure (IOP) of an eye and reflected impedance of an eye based on the generation of a source of electromagnetic wave energy with a radar generating device, creating a pattern of the generated electromagnetic wave energy at a predetermined frequency and radiating the pattern of electromagnetic wave energy onto a surface of an eye and within, from a distance, and receiving reflected energy back from the surface of the eye, converting the reflected wave energy into a Smith Chart display data format that can process the electromagnetic resonance reflection properties of the eye and display these reflection properties for IOP and for assessing other eye diseases as well as sensing indicators of brain diseases.

The present invention relates to a terahertz biometric imaging package comprising: an image sensor comprising an antenna pixel array arranged to detect terahertz radiation transmitted from an object, for capturing an image, each antenna pixel comprises a power detector including an antenna structure for receiving terahertz radiation, wherein the power detector is configured to convert a detected terahertz radiation to a sensing signal at a lower frequency than the frequency of the terahertz radiation, a package top cover arranged to cover the antenna pixel array, wherein the image sensor is configured to capture a terahertz image of an object located on an opposite side of the package top cover, a package bottom part arranged on the other side of the antenna pixel array opposite from the package top cover, wherein the antenna pixel array is encapsulated between the package top cover and the package bottom part.