An efficient RADAR imaging method that is able to detect an object within an interested area. This method uses electromagnetic waves transmitted by one or many transmitters to illuminate the interested area, and then estimates the phase shift of the scattered wave of an object according to the path that the electromagnetic wave propagated. By reversing the phase of the obtained scattered signal to the transmitters' position, an image is constructed for the entire interested area according to the correlation of signals in all channels. The present method works in the frequency domain. It produces a microwave image by using the phase and magnitude of the obtained signal, or using the phase information only. Other unique features include the way it synthesizes the signals obtained in multiple channels and at multiple frequencies. Its overwhelming high efficiency makes rapid microwave imaging and real-time imaging possible.

A blood glucose tracking system and method measures emitted microwave energy transmitted to and accepted by blood vessels in a desired target area of a patient in order to determine, in real time and in vivo, appropriate blood glucose levels. A measurement unit comprises a transmitter operatively connected to an antenna to deliver energy towards appropriate subcutaneous blood vessels. The measurement unit determines an accepted energy power value in the blood vessels associated with the desired target area. This measurement energy power value is compared with a calibration value, and the difference is used to determine a resultant blood glucose value. The determined blood glucose value may further be acclimatized using additional sensed values compensating for biological and ambient factors relevant to the patient. The final determined blood glucose value can be displayed for reading and/or transmitted and stored for recording for further reference.

A non-contact vital sign monitoring system transmits wireless signals to the same side of a biological subject via two antennas with different gains, and the two antennas receive two reflected signals from the biological subject with random body movement. Under a proper setup of the two antennas, the two reflected signals can be adjusted by an amplitude and phase adjusting unit to have the Doppler shift components caused by body movement with equal magnitude and out of phase and the Doppler shift components caused by vital signs with different magnitude. Therefore, the random body movement effect can be cancelled based on the relation between the two reflected signals in using the system to monitor the vital signs of the subject.

A portable sensing system device and method for providing microwave or RF (radio-frequency) sensing functionality for a portable device, the device comprising: a portable device housing configured to be carried by a user; and a sensing unit within said housing configured to characterize an object located in proximity to the portable system, said sensing unit comprising: a wideband electromagnetic transducer array said array comprising a plurality of electromagnetic transducers; a transmitter unit for applying RF signals to said electromagnetic transducer array; and a receiver unit for receiving coupled RF signals from said electromagnetic transducers array.

Systems and methods for monitoring and/or assessing metabolic and/or cardiopulmonary parameters of a subject are disclosed. Systems and methods for high speed monitoring of metabolic parameters of a subject in a substantially unrestricted setting are disclosed. Further disclosed are wearable systems and methods for substantially unobtrusive monitoring of a breath stream from a subject. Also disclosed are wearable systems and methods for real-time monitoring of the respiratory function and/or one or more disease states of a subject. Data systems to coordinate simultaneous monitoring of one or more metabolic and/or cardiopulmonary parameters of a plurality of subjects are also disclosed.

A system includes a control unit configured to be worn by a subject, and having a wireless transceiver configured to receive and transmit signals and a processor coupled to a memory, at least one respiratory volume sensor mountable to the chest or abdomen of the subject and at least one secondary sensor mountable relative to the subject. The respiratory volume sensor is configured to operably generate one or more volumetric signals representative of a respiratory volume of the subject and communicate the one or more volumetric signals to the wireless transceiver of the control unit. The at least one secondary sensor is configured to operably generate one or more secondary signals and representative of at least one of a physiological, a cardiopulmonary or a metabolic condition of the subject, and communicate the one or more secondary signals to the wireless transceiver of the control unit.

The present invention includes an apparatus and method for external magnetic resonance imaging and spectroscopy of a prostate comprising: one or more radio frequency (RF) coils adapted to externally image the prostate, wherein the one or more RF coils are sized and shaped to fit within the perineum area of a subject allowing the placement of the one or more RF coils on the perineum, wherein the one or more RF coils are positioned perpendicular to the prostate; and a processor connected to the radio frequency (RF) coils adapted to measure at a resonance frequency of a magnetic resonance imaging (MRI) scanner or a spectrophotometer, wherein a signal received by the one or more RF coils is used to generate an image of the prostate during magnetic imaging.

An area and a size of a high frequency device are reduced. The high frequency device includes a first board (1) that has a first surface (1a) on which a circuit unit is formed and a second surface (1b) on which a ground conductor is formed, a second board (2) that has a third surface (2a) on which an antenna is formed and a fourth surface (2b) on which a second ground conductor is formed, and a conductor plate (3), in which the conductor plate (3) is sandwiched between the second surface (1b) and the fourth surface (2b).

A method, apparatus and computer program product are provided for determining an intimate activity has occurred based on data collected with a radar detection device. Data relating to sleep patterns, such as of a sleep study participant, may be collected with a radar detection device in close proximity to a bed or other reference point. The data may be processed to determine occurrence of intimate activities, based on detected movements and/or positions of body profiles relative to each other and/or to a common reference point. The data corresponding to intimate activities may therefore be appropriately processed, such as by being excluded from the sleep record data to provide privacy to a user.

A system for estimating breathing frequency and heartbeat frequency of a subject, comprises at least one ultra-wideband (UWB) transceiver, connected to at least one hardware processor, configured to: receive a plurality of readings from the UWB transceiver, each of the readings having a time and comprising a plurality of intensity values at the time, each of the intensity values having a corresponding distance value representing a distance between the UWB transceiver and the subject; determine a Range-Doppler map from the plurality of readings; analyze the Range-Doppler map to determine a breathing frequency value of the subject; perform null steering of a plurality of Doppler-map frequencies in the Range-Doppler map to nullify the breathing frequency value and integer multiples of the breathing frequency value to obtain a plurality of combined frequencies; and determine a heartbeat frequency value for which a plurality of computed frequencies corresponds with the plurality of combined frequencies.