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44results about How to "Not easy to noise" patented technology

Noise reducing footwear

InactiveUS20140373392A1Reduce noise and impact characteristicHigh forceSolesUpperFoot protectionEngineering
The present invention is drawn generally to footwear, and more specifically, to footwear having reduced noise and impact characteristics. According to the invention noise generated by the impact of the footfall when in contact with hard floors is reduced by an outer sole with certain hardness and a sound reducing insole which comprising a material of high indentation forced deflection (IFD) weight having a minimum thickness of ¼ to a maximum ¾ inch, and an optimal thickness of about ½ inch. Also, the footwear comprises an upper portion attached to the outer sole to provide comfort and foot protection.
Owner:CULLEN JOSEPH ROBERT

Infrared sensor ic, and infrared sensor and manufacturing method thereof

An infrared sensor IC and an infrared sensor, which are extremely small and are not easily affected by electromagnetic noise and thermal fluctuation, and a manufacturing method thereof are provided. A compound semiconductor that has a small device resistance and a large electron mobility is used for a sensor (2), and then, the compound semiconductor sensor (2) and an integrated circuit (3), which processes an electrical signal output by the compound semiconductor sensor (2) and performs an operation, are arranged in a single package using hybrid formation. In this manner, an infrared sensor IC that can be operated at room temperature can be provided by a microminiature and simple package that is not conventionally produced.
Owner:ASAHI KASEI ELECTRONICS CO LTD

Method And Apparatus For Ripple And Phase Loss Detection

The invention relates to a method and an apparatus for ripple and phase loss detection. Methods and apparatus are presented for detecting phase loss and / or excessive ripple in a power converter, wherein bandpass filters are used to obtain harmonic voltage amplitudes associated with the power converter DC bus, and phase loss is detected if a ratio of the second harmonic to the sixth harmonic and / or a ratio of the fourth harmonic to the sixth harmonic exceed predetermined threshold values.
Owner:ROCKWELL AUTOMATION TECH

Low-voltage power distribution system series fault arc identification method based on all-phase deep learning

The invention discloses a low-voltage power distribution system series fault arc identification method based on all-phase deep learning. In an existing low-voltage power distribution network fault, the identification method for a series fault arc is easily disturbed by a noise and spectrum leakage, an identification effect is affected, identification efficiency is not high, and stability is not high either. In the invention, the above problems are solved. The method comprises the following steps of under a low-voltage alternating current system, carrying out current signal collection on different loads in a low-voltage loop; carrying out all-phase discrete Fourier transform on a collected current signal, carrying out full-phase spectrum characteristic quantity extraction of a load, and constructing an all-phase spectrum characteristic vector; constructing a deep learning neural network model based on Logistic regression, carrying out deep learning training on all-phase spectrum characteristic quantity under the different loads and different operating states till that the model converges; and using the trained model to complete screening of different load types and identification ofwhether the series fault arc occurs.
Owner:国网四川电力服务有限公司

Method for suppresing noise and increasing speed in miniaturized radio frequency signal detectors

The invention discloses design of the wideband single, dual or three channel signal detector with ability to suppress interference and crosstalk from two PLL LO signal generators (101&102) with selection of best pairs of LO frequencies (108&109) out of all possible pairs in the way that all interference is kept out-of-band and with efficient filtering in IF (103) and baseband (104) to achieve high sensitivity for wideband channels without requirement for heavy shielding or adding of absorptive materials to the receiver subsystems. Method for measurement and creating array with frequency pairs to control PLL generators with optimal frequency distribution on each PLL generator for uniform and fastest possible scanning of all required bands is also disclosed.
In addition to signal analyzer (801) design and implementation method for digital signal processing for purpose of detection of speed measurement radars is disclosed with advanced AI (808) supported system for classification of the detected signals. Classifier AI module is implemented with SVM (Supported Vector Machine) (913) pretrained and periodically retrained for signal classification in the operation of the detector, and with additional neural network (910) used for assisting in classification of to SVM (913) unknown signals that could be detected during the operation of the detector and to update dynamical signature database (911) used for periodical retraining of the SVM (913) classifier. Optional user interface is possible for manual classification of detected signals and to update dynamical database (911) with new signatures with high weight for retraining.
Owner:A ELEKTRONIK D O O

Method and system for realizing high-resolution analog-to-digital conversion by low-resolution ADC (Analog to Digital Converter)

The invention relates to a method and a system for realizing high-resolution analog-to-digital conversion by a low-resolution ADC (Analog to Digital Converter), which aim at a CCD (Charge-coupled Device) camera. The method comprises the following steps: carrying out subsequent preprocessing on a CCD analog signal generated by an FPA (Focusing Plane Assembly); amplifying a CCD analog video signal after the preprocessing to obtain an amplified video signal; carrying out analog-to-digital conversion on the amplified video signal to obtain a low-bit ADC quantization result; and converting the low-bit quantization result into high-bit quantization result. The invention provides the method and the system for realizing high-resolution analog-to-digital conversion by the low-resolution ADC, whichaim to the CCD camera, and have small delay, high transmission ratio, strong anti-interference capability, high SNR (Signal to Noise Ratio) and wide application range.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI

High-impact environment-friendly V belt and manufacturing process thereof

The invention discloses a high-impact environment-friendly V belt and a manufacturing process thereof. A manufacturing raw material of the high-impact environment-friendly V belt is composed of canvas, raw glue, wrapping cloth, chemical raw materials, wire ropes, primer, cushioning glue and cloth glue. Aramid fiber framework wire ropes imported from Japan are adopted, during work running, instantlarge power can be borne, the rotating power is five times that of a common V belt, the strength is three times that of a common V belt, in the running process, extension and shrinkage are avoided, the belt is suitable for multi-wheel rotation, meanwhile, during pressing wheel engagement and disengagement, noise is not prone to happening, during running work, when the belt collides with foreign matter and stops working, the belt has the beneficial effects that the friction coefficient is reduced, impact force borne by the belt is reduced, the phenomenon that a motor is burnt out, and the beltis broken is avoided, during running work, glue powder is not prone to appearing in the work face, and the ground environment is protected.
Owner:广德天鹏实业有限公司

Self-adaptive reversible information hiding method based on integer wavelet transform

The invention discloses a self-adaptive reversible information hiding method based on integer wavelet transform, and belongs to the field of digital watermarking and information hiding. The self-adaptive reversible information hiding method comprises the following steps: firstly, dividing a carrier image into two areas, namely a watermark embedding area and an additional information embedding area; performing integer wavelet transform on the watermark embedding area, and adaptively setting a threshold by utilizing the watermark size and the mean square error of a wavelet coefficient; and determining whether a certain image block is embedded or not according to the approximate component, and then embedding the watermark information into the corresponding diagonal component, wherein the additional information embedding area is used for embedding additional information including a threshold value and the length and width of the watermark. According to the self-adaptive reversible information hiding method, self-adaptive watermark embedding can be realized, and complete blind extraction can be realized; and reversible information hiding can be achieved, and the visual effect is good, and the distortion degree is small, and the PSNR of the image embedded with the watermark is high, and the invisibility of the watermark is good, and the practical value is achieved.
Owner:SHANDONG UNIV OF SCI & TECH

Brake band for speed reduction clutch

The invention relates to a brake band for a speed reduction clutch. The brake band for the speed reduction clutch comprises a steel band, a friction band, a fixing plate and a hinge pin connector. Thefriction band adheres to the steel band, and the fixing plate and the hinge pin connector are connected to the two ends of the steel band correspondingly. The brake band for the speed reduction clutch is characterized in that the steel band comprises at least two son steel band segments which are connected through a hinge and a rivet, the friction band comprises at least two son friction band segments corresponding to the son steel band segments, and the son steel band segments are provided with reinforcing ribs. By means of the steel band which is arranged in a segment manner, it can be guaranteed that in the tensioning and releasing process of the steel band, bending stress repeatedly generated by the steel band is reduced through the hinge for mutual connection, and the situation thatthe service life of the steel band is relatively short or breaking accidents are prone to being caused by fatigue is effectively reduced. By means of the arrangement of the reinforcing ribs, the strength of the steel band is enhanced, the brake band is not prone to being deformed, and noise generated by mutual friction, caused by large dewatering vibration, between the brake band and a brake hub is prevented.
Owner:余姚市馨洁水暖有限公司

A method for suppresing noise and increasing speed in miniaturized radio frequency signal detectors

The invention discloses design of the wideband single, dual or three channel signal detector with ability to suppress interference and crosstalk from two PLL LO signal generators (101&102) with selection of best pairs of LO frequencies (108&109) out of all possible pairs in the way that all interference is kept out-of-band and with efficient filtering in IF (103) and baseband (104) to achieve high sensitivity for wideband channels without requirement for heavy shielding or adding of absorptive materials to the receiver subsystems. Method for measurement and creating array with frequency pairs to control PLL generators with optimal frequency distribution on each PLL generator for uniform and fastest possible scanning of all required bands is also disclosed.In addition to signal analyzer (801) design and implementation method for digital signal processing for purpose of detection of speed measurement radars is disclosed with advanced AI (808) supported system for classification of the detected signals. Classifier AI module is implemented with SVM (Supported Vector Machine) (913) pretrained and periodically retrained for signal classification in the operation of the detector, and with additional neural network (910) used for assisting in classification of to SVM (913) unknown signals that could be detected during the operation of the detector and to update dynamical signature database (911) used for periodical retraining of the SVM (913) classifier. Optional user interface is possible for manual classification of detected signals and to update dynamical database (911) with new signatures with high weight for retraining.
Owner:A ELEKTRONIK D O O
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