Abstract: Provided is a system for implementing a broadband radio frequency (RF) communication. The system includes a first phase locked loop (PLL) unit configured to generate a first clock based on a reference clock; and a second PLL unit configured to generate a second clock based on the first clock generated by the first PLL unit and a baseband signal generated by demodulating a reception signal. The second clock is provided to the first PLL unit as the reference clock, and a carrier frequency used for demodulating the reception signal is determined by the first clock.

Abstract: There is provided a 3D image generation method and apparatus. A 3D image generation method according to an embodiment includes outputting a signal to an object from at least one point, receiving the signal reflected by the object at one or more points, and generating a 3D image of the object based on a temporal feature and a spectral feature of the signal reflected by the object.

Abstract: According to one aspect of the invention, there is provided a method for monitoring hemodynamics, comprising the steps of: acquiring information on a posture of a first subject wearing a monitoring device; estimating a motion artifact predicted to be included in a spectroscopic measurement signal from the first subject which is measured by the monitoring device, with reference to the acquired information on the posture of the first subject, and a motion artifact estimation model for defining a correlation between a posture of at least one subject and a motion artifact occurring in a signal measured from the at least one subject; and removing the estimated motion artifact from the measurement signal from the first subject.

Abstract: There is provided a method of providing information about prognosis after cardiac arrest. The method includes the steps of: calculating biological information based on a signal relating to a hemoglobin concentration measured from a cerebral region of a subject to be measured; and providing the information about the prognosis after cardiac arrest of the subject with reference to the calculated biological information and a biomarker relating to the prognosis after cardiac arrest measured from a blood of the subject.

Abstract: According to one aspect of the invention, there is provided a method for assessing blood flow regulation performance based on hemodynamics, comprising the steps of: calculating second biometric information corresponding to a time differential of first biometric information on a hemoglobin concentration measured from a cerebral part of a subject; and assessing blood flow regulation performance of the subject with reference to a response that occurs in the second biometric information in correspondence to a change in a posture of the subject.

Abstract: According to one aspect of the invention, there is provided a waveguide for transmission of electromagnetic wave signals, comprising: a first dielectric part comprising a dielectric; a conductor part covering a part of the first dielectric part; and a second dielectric part surrounding the first dielectric part and the conductor part.

Abstract: According to one aspect of the invention, there is provided a connector for connecting a waveguide and a board, comprising: a first opening part formed in a direction perpendicular to one side of a board and coupled to the one side of the board; a second opening part formed in a direction parallel to a longitudinal direction of a waveguide for signal transmission, wherein the waveguide is capable of being coupled to the second opening part; and a signal guide part connecting the first and second opening parts and including a hollowness surrounded by a conductive layer therein.

Abstract: According to one aspect of the invention, there is provided a signal processing method, wherein a frame is generated in which at least one position of occurrence of a transition in a pulse value is determined from an input bitstream. According to another aspect of the invention, there is provided a signal processing method, wherein a frame including at least one pulse having a pulse width not less than a minimum pulse width is generated from an input bitstream.

Abstract: According to one aspect of the present disclosure, there is provided a method of estimating biometric information about a head using a machine learning, the method including: acquiring an analysis target optical signal detected from a head portion of a person to be measured by at least one optical sensor disposed on the head portion of the person to be measured; and estimating the biometric information about the head of the person to be measured by analyzing the acquired analysis target optical signal using an estimation model learned based on data about an anatomical structure of at least one head portion, data about a biometrical state of the at least one head portion, and data about an optical signal associated with the data about the anatomical structure of at least one head portion and the data about the biometrical state of the at least one head portion.

Abstract: Disclosed is a chip-to-chip interface using a microstrip circuit and a dielectric waveguide. A board-to-board interconnection device, according to one embodiment of the present invention, comprises: a waveguide which has a metal cladding and transmits a signal from a transmitter-side board to a receiver-side board; and a microstrip circuit which is connected to the waveguide and has a microstrip-to-waveguide transition (MWT), wherein the microstrip circuit matches a microstrip line and the waveguide, adjusts the bandwidth of a predetermined first frequency band among the frequency bands of the signal, and provides same to the receiver.

Abstract: Disclosed are an apparatus and a method for removing strands of hair from a near-infrared spectroscopy. The apparatus for removing strands of hair from a near-infrared spectroscopy may comprise: an arch-shaped main body worn on the head of a user, having a plurality of protrusions formed at an inner side part of the arch-shaped main body, and configured to expose a portion of scalp by arranging the strands of hair; a probe configured to come into close contact with the scalp; and a sensor configured to be accommodated inside the probe and receive light.

Abstract: A multi-electrode renal denervation method and system using an integrated circuit are provided. The multi-electrode renal denervation system presented in the present invention comprises: a power generator transmitting control data for controlling the temperature of a plurality of electrodes; and a catheter in which the plurality of electrodes, which has an integrated circuit embedded therein and is controlled by the control data received from the power generator, are arranged, and the information measured using the integrated circuit is transmitted to the power generator.

Abstract: A method of operating an image device operated by at least one processor is provided. The method of operating an image device comprises generating beamformed RF-mode images including phase shift information for each incident angle by using multi-angle ultrasound-echo data, generating phase shift maps representing a displacement of speckle pattern between adjacent beamformed RF-mode images, and obtaining a speed-of-sound distribution image corresponding to the phase shift maps by using a deep neural network which is trained to reconstruct speed-of-sound distribution of a tissue from training phase shift maps.

Abstract: The method of operating an image device comprises receiving an input of virtual tissues modeled with an arbitrary shape and a quantitative feature, simulating a TOF change or a signal strength change of ultrasound data having penetrated the virtual tissues modeled with a speed-of-sound distribution or an attenuation coefficient distribution in a first and in a second direction, and creating an image pair representing the TOF change or the signal strength change, creating a speed-of-sound distribution image or an attenuation coefficient distribution image of each of the virtual tissues as a ground truth of an image pair created in the corresponding virtual tissue, and training a first neural network that reconstruct the speed-of-sound distribution image from an input image pair or training a second neural network that reconstructs the attenuation coefficient distribution image from the input image pair.

Abstract: The present disclosure relates to a method and a system for standardizing a hemodynamics measurement result and a non-transitory computer-readable recording medium. According to one aspect of the present disclosure, provided is a method for standardizing a measurement result obtained from a device for monitoring hemodynamics, the method comprising the steps of: capturing an image of a subject wearing a monitoring device; defining a photogrammetric coordinate system on the captured image, and converting a preset local coordinate system on the monitoring device into the photogrammetric coordinate system; and converting the photogrammetric coordinate system into a standard coordinate system which is based on a standard space.

Abstract: According to one aspect of the invention, there is provided a method for assessing blood flow regulation performance based on hemodynamics, comprising the steps of: calculating second biometric information corresponding to a time differential of first biometric information on a hemoglobin concentration measured from a cerebral part of a subject; and assessing blood flow regulation performance of the subject with reference to a response that occurs in the second biometric information in correspondence to a change in a posture of the subject.

Abstract: According to one aspect of the invention, there is provided a signal processing method, wherein a frame is generated in which at least one position of occurrence of a transition in a pulse value is determined from an input bitstream. According to another aspect of the invention, there is provided a signal processing method, wherein a frame including at least one pulse having a pulse width not less than a minimum pulse width is generated from an input bitstream.

Abstract: According to one aspect of the invention, there is provided a connector for connecting a waveguide and a board, comprising: a first opening part formed in a direction perpendicular to one side of a board and coupled to the one side of the board; a second opening part formed in a direction parallel to a longitudinal direction of a waveguide for signal transmission, wherein the waveguide is capable of being coupled to the second opening part; and a signal guide part connecting the first and second opening parts and including a hollowness surrounded by a conductive layer therein.

Abstract: According to one aspect of the invention, there is provided a waveguide for transmission of electromagnetic wave signals, comprising: a first dielectric part comprising a dielectric; a conductor part covering a part of the first dielectric part; and a second dielectric part surrounding the first dielectric part and the conductor part.

Abstract: There is provided a 3D image generation method and apparatus. A 3D image generation method according to an embodiment includes outputting a signal to an object from at least one point, receiving the signal reflected by the object at one or more points, and generating a 3D image of the object based on a temporal feature and a spectral feature of the signal reflected by the object.