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355results about How to "Reduce noise disturbance" patented technology

Real-time physiological signal measurement and feedback system

A real-time physiological signal measurement and feedback system is suitable to be worn on a body part of an user for decreasing the noise of motion, and includes a sensor module, a signal processing module and a feedback platform. The sensor module includes a first magnetic unit having a light emitting diode and a second magnetic unit having a photo-detector. The light emitting diode illuminates a light beam passing through the body part and being received by the photo-detector so as to generate an electric signal when both of the first and the second magnetic units attract mutually to sandwich the body part. The signal processing module converts the electrical signal into a digital signal. The feedback platform processes the digital signal to generate a physiological parameter, and is used as a multi-function driving recorder. An alarm is triggered or not by the feedback platform according to the physiological parameter.
Owner:NAT TAIWAN UNIV OF SCI & TECH

Indoor positioning method based on WiFi

The invention relates to an indoor positioning method based on WiFi, which comprises the following steps of: in an offline stage, acquiring fingerprint vectors of N reference point positions in an indoor positioning area, and storing the fingerprint information of the N reference points into a fingerprint database DB; roughly positioning at an online stage, namely determining a target floor; utilizing the K-means algorithm to carry out clustering analysis on the sub-fingerprint libraries DBjk of the corresponding floors, and further dividing positioning sub-regions; in the real-time positioning stage, firstly, carrying out AP selection, and then using a KNN classification algorithm for determining a sub-region where a target is located; and finally, finding out K nearest neighbors, and estimating the position (x, y) of the target in a weighted average mode. According to the method, for a large-range indoor positioning scene, the intensity information of all APs is reserved; for indoorfloor positioning, an SVM classifier is used, an encoder is added to a classifier model, the data dimension is reduced through introduction of the encoder, redundant information and noise interferenceare effectively reduced, and the classification precision is improved.
Owner:HEFEI UNIV OF TECH

Prefabricated and light floor cover plate and industrialized building house floor plate structure

The invention discloses a prefabricated and light floor cover plate and an industrialized building house floor plate structure. The prefabricated and light floor cover plate comprises a facing layer, light packing layers where light packing blocks on the back face of the facing layer are arranged and bonding piece for fixing the facing layer and the light packing layers in a locating mode, steel reinforcement framework sheets are arranged between the light packing blocks, steel reinforcement meshes are laid at the backs of the light packing layers, and concrete structure layers are poured at the backs of the light packing layers and extend to gaps between the light packing layers to enable the facing layer, the steel reinforcement meshes, the steel reinforcement framework sheets and the light packing layers to be bonded to form a whole. The industrialized building house floor plate structure comprises a plurality of prefabricated and light floor cover plates transversely and fixedly arranged on a supporting beam, prefabricated lower sunk grooves, prefabricated balcony assemblies and cast-in-place concrete connecting pieces. The industrialized building house floor plate structure is simple in construction process and has the advantages of being light in weight, high in anti-shocking capacity, safe and the like.
Owner:黄涛 +1

Filter for Video Stream

A filter for a video stream is provided. The filter generates a filtered picture according to a current picture and its previous picture. A motion difference calculator accumulates differences between current picture values and previous picture values within a neighborhood of each pixel to provide a corresponding motion difference. A histogram counter performs histogram counting according to motion differences of the pixels. A filter value calculator provides a filter value for each pixel according to operations of the motion difference calculator and the histogram counter. A blender blends the current picture value and the previous picture value of each pixel according to weightings correlated to the filter value, and provides a filtered picture value for each pixel of the filtered picture.
Owner:XUESHAN TECH INC

Multi-chip module for power supply circuitry

A multi-chip module (MCM) for power supply circuitry integrates a controller, a driver and two power MOSFETs in a single chip to shorten the signal path between the controller and the driver. When applied to a voltage regulator, the MCM shortens the feedback paths between the current sensors and the controller, so as to reduce the loss of and interference with the feedback signals, thereby improving the efficiency of the voltage regulator and simplifying the PCB traces routing.
Owner:RICHTEK TECH

C-peptide chemiluminescence immunodetection kit, preparation method and detection method therefor

The invention discloses a C-peptide chemiluminescence immunodetection kit, a preparation method and a detection method therefor, belongs to the field of the immunoassay, and solves the problems of lowsensitivity, long reaction time, and high cost of an existing C-P detection method. The kit comprises magnetic particles coated by the streptavidin; the C peptide antibody labeled by the biotin; theC peptide antibody labeled by the acridinium ester; the wash buffer; the chemoluminescence pre-trigger solution; a calibrator; and a quality control product. The detection method is as follows: the C-peptide antigen in the sample is immunologically reacted with the C-peptide antibody labeled by the biotin and the C peptide antibody labeled by the acridinium ester to form a biotin-C peptide antibody-C peptide antigen-C peptide antibody-acridinium ester solvent; the magnetic particles coated by the streptavidin are combined with the biotin to form a magnetic bead-streptavidin-biotin-C peptide antibody-C peptide antigen-C-peptide antibody-acridinium ester complex; and the concentration of the C peptide is calculated by adding the washing buffer and the like. According to the C-peptide chemiluminescence immunodetection kit, the preparation method and the detection method therefor, the sensitivity is high, the specificity is good, the reaction time is short, and the cost is low.
Owner:DIRUI MEDICAL TECH CO LTD
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