Abstract: An apparatus and a method for detecting heartbeat include a sensor configured to detect displacements of an object without contacting the object wherein the object displaces corresponding the a human's heartbeat, a data processing unit configured to extract a feature dataset from the detected displacement data, and a neural network configured to inference inter beat intervals from the extracted feature dataset using a pre-trained model.

Abstract: A picture encoding/decoding method and a related apparatus are provided. The picture decoding method includes obtaining a current picture from a video, the current picture being segmented using random access points into multiple video segments supporting a random access function; selecting, from a knowledge base, K reference pictures of the current picture, wherein at least one reference picture in the knowledge base does not belong to a random access segment in which the current picture is located, the random access segment comprising a picture sequence arranged in a decoding order from a closest random access point before the current picture to a closest random access point after the current picture; and decoding the current picture according to the K reference pictures.

Abstract: Provided are a circuit apparatus, a manufacturing method thereof, and a circuit system. The circuit apparatus includes a flexible circuit board, a flexible packaging material layer and an electronic device. The flexible circuit board has at least one hollow pattern, wherein the flexible circuit board has an inner region and a peripheral region surrounding the inner region, and has a first surface and a second surface opposite to each other. The flexible packaging material layer is disposed in the at least one hollow pattern. The electronic device is disposed on the first surface of the flexible circuit board and electrically connected with the flexible circuit board.

Abstract: A headband device is provided. The headband device includes a first knob, a first transmission mechanism, a vertical adjustment mechanism and a vertical headband. The first knob is rotated around a first axis. The first transmission mechanism is connected to the first knob, wherein the first transmission mechanism is rotated by the first knob around a second axis, wherein the first axis is perpendicular to the second axis. The vertical adjustment mechanism is adapted to be connected to the first transmission mechanism, wherein the vertical adjustment mechanism is rotated by the first transmission mechanism and is rotated around the second axis. The vertical headband is connected to the vertical adjustment mechanism, wherein the vertical headband is moved by the vertical adjustment mechanism and the tightness of the vertical headband is adjustable.

Abstract: A microelectromechanical system (MEMS) structure and method of forming the MEMS device, including forming a first metallization structure over a complementary metal-oxide-semiconductor (CMOS) wafer, where the first metallization structure includes a first sacrificial oxide layer and a first metal contact pad. A second metallization structure is formed over a MEMS wafer, where the second metallization structure includes a second sacrificial oxide layer and a second metal contact pad. The first metallization structure and second metallization structure are then bonded together. After the first metallization structure and second metallization structure are bonded together, patterning and etching the MEMS wafer to form a MEMS element over the second sacrificial oxide layer. After the MEMS element is formed, removing the first sacrificial oxide layer and second sacrificial oxide layer to allow the MEMS element to move freely about an axis.

Abstract: Embodiments and fabrication methods for a printed circuit board comprising two or more electrically conductive layers, including at least a first conductive layer opposing and adjacent to a second conductive layer. Also including one or more electrically non-conductive layers including at least a first non-conductive layer disposed between the first conductive layer and the second conductive layer. A first copper pad is included on the first conductive layer. A second copper pad is included on the second conductive layer. There is a conductive via extending through the first non-conductive layer and electrically connecting the first copper pad to the second copper pad and solder mask material on the first copper pad around the via.

Abstract: A bioprinter and methods of using the bioprinter. The bioprinter permits selective three-dimensional movement of multiple nozzle assemblies during operation of the bioprinter. The bioprinter can be used to produce scaffold-free tissue constructs having a plurality of cellular elements interspersed among a semi-permeable vascular network. The bioprinter can also be used to print a tissue construct directly onto a tissue defect of a subject. The bioprinter can be provided as part of a bioprinting system that includes a scanner for imaging the tissue defect.

Abstract: A frequency modulated continuous wave radar system includes at least one identity tag, respectively disposed next to at least one test subject; and a frequency modulated continuous wave radar identity recognition device, including an identity recognition control module, for controlling a test identity tag of the at least one identity tag to be turned on to generate a specific tag reflection signal corresponding to an identity frequency in response to a chirp signal; and a frequency modulated continuous wave radar, for transmitting the chirp signal and receiving at least one reflection signal of the at least one test subject and the specific tag reflection signal in response to the chirp signal, to calculate and determine that the specific tag reflection signal and a specific reflection signal of the at least one reflection signal are corresponding to an adjacent position information. The specific reflection signal is corresponding to test subject information.

Abstract: The present disclosure provides an integrated platform allowing multiple users to share and exchange motion, position, image and other data of a set of replicas or phantoms mimicking genuine objects used in real life scientific laboratory within a common virtual space resembling a scientific laboratory, where the motion and position data are tracked real-time by multiple sensors embedded into the phantoms and transformed using a physically accurate rendering approach into dynamic images of their corresponding genuine objects to be displayed in an augmented reality projection, so that the users can remotely connect to the platform via a portable device to learn and practice skills of handling laboratory apparatuses from experiencing in the common virtual space with one or more of the phantoms.

Abstract: The present invention discloses a wearable device. The wearable device includes a plastic housing, a ventilated metal member, and an electronic module. The plastic housing includes an accommodating portion, and the plastic housing includes a through hole. The plastic housing is combined with a periphery of the ventilated metal member through insert molding. The ventilated metal member seals the through hole. The ventilated metal member is waterproof and ventilated. The electronic module is arranged in the accommodating portion, and the electronic module, the ventilated metal member, and the plastic housing jointly form a closed space.

Abstract: Embodiments and fabrication methods for a printed circuit board comprising two or more electrically conductive layers, including at least a first conductive layer opposing and adjacent to a second conductive layer. Also including one or more electrically non-conductive layers including at least a first non-conductive layer disposed between the first conductive layer and the second conductive layer. A first copper pad is included on the first conductive layer. A second copper pad is included on the second conductive layer. There is a conductive via extending through the first non-conductive layer and electrically connecting the first copper pad to the second copper pad and solder mask material on the first copper pad around the via.

Abstract: A non-contact vital-sign monitoring system having a radar disposed in vicinity of a monitored subject includes a data buffer storing output signals of the radar sampled in sequence during a predetermined period; a status classifier determining status of the monitored subject; and a vital-sign detector determining a vital sign of the monitored subject according to the output signals of stationary status.

Abstract: A radar detection system and a radar field of view (FOV) direction adjustment method are provided. A processing unit of the radar detection system performs the following steps in one scanning round: obtaining at least one cluster of a current frame and a current status and a next status of each cluster based on digital feedback signals; and determining a displacement, determining, based on the current status of a tracked cluster in the at least one cluster and the displacement, whether the tracked cluster is located on an edge of a current FOV of a radar unit, and sending a control signal based on the next status of the tracked cluster in response to the tracked cluster being located on the edge of the current FOV, to adjust an FOV direction of the radar unit.

Abstract: An irrigating planter assembly (1) including a base unit (2) to receive and hold water, a hygroscopic unit (3) in fluid communication with the base unit (2) and water vapor condensing means (4) from either or both units (2, 3) of the assembly (1), wherein the base unit (2), hygroscopic unit (3) and water vapor condensing means (4) form an enclosed chamber (5) to contain moisture (32) evaporated therein for collection in the base unit (2) in the form of condensed water (6).

Abstract: A method for detecting vital information and humidity using a radio frequency radar device is provided. In the method, an incident radar signal is transmitted to a field to detect a reflected radar signal reflected by an object to be measured and a reflected radar signal reflected by a humidity sensing tag. Therefore, vital information of the object to be measured and humidity information detected by the humidity sensing tag are obtained.

Abstract: A non-contact exercise vital sign detection method is provided. At least one candidate position having an energy intensity exceeding an energy threshold is pre-selected from a vibration frequency map, and a position having a vibration frequency meeting a vital sign parameter range is then selected as a target position from the at least one candidate position. Accordingly, phase data obtained according to the target position facilitates accurate detection of a vital sign parameter of a subject.

Abstract: A data pre-processing method is provided. By using an energy distribution parameter set obtained through beamforming scanning, a signal-to-noise ratio of a signal can be improved and a detection range region can be automatically generated, thereby improving an object tracking effect. An exercise vital sign detection radar is also provided.

Abstract: A Doppler radar apparatus, including a transmitter, a receiver, and a processor, is provided. The transmitter transmits a radio frequency signal to a field. The receiver is coupled to the transmitter and receives a reflected signal corresponding to the radio frequency signal from the field. The processor is coupled to the receiver and is configured to detect a target in the field according to the reflected signal. In response to the target not being detected in the field, the processor switches to a power saving mode according to workload reduction information, and workload of the radio frequency signal in the power saving mode decreases based on the workload reduction information.

Abstract: Methods and systems described herein involve using long cell-free DNA fragments to analyze a biological sample from a pregnant subject. The status of methylated CpG sites and single nucleotide polymorphisms (SNPs) is often used to analyze DNA fragments of a biological sample. A CpG site and a SNP are typically separated from the nearest CpG site or SNP by hundreds or thousands of base pairs. Finding two or more consecutive CpG sites or SNPs on most cell-free DNA fragments is improbable or impossible. Cell-free DNA fragments longer than 600 bp may include multiple CpG sites and/or SNPs. The presence of multiple CpG sites and/or SNPs on long cell-free DNA fragments may allow for analysis than with short cell-free DNA fragments alone. The long cell-free DNA fragments can be used to identify a tissue of origin and/or to provide information on a fetus in a pregnant female.