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2851results about How to "Reliable and reliable" patented technology

Device for changing the shape of the mitral annulus

An elongate body including a proximal and distal anchor, and a bridge between the proximal and distal anchors. The bridge has an elongated state, having first axial length, and a shortened state, having a second axial length, wherein the second axial length is shorter than the first axial length. A resorbable thread may be woven into the bridge to hold the bridge in the elongated state and to delay the transfer of the bridge to the shortened state. In an additional embodiment, there may be one or more central anchors between the proximal and distal anchors with a bridge connecting adjacent anchors.
Owner:EDWARDS LIFESCIENCES AG

Connector for corrugated coaxial cable and method

An electrical connector is mounted on a corrugated coaxial cable. An electrical connection with the outer conductor of the cable is formed by compressing an elastomer body surrounding the end of the cable and flowing the body inwardly against the cable to hold a conductive member in electrical connection with the outer conductor.
Owner:JOHN MEZZALINGUA ASSOC INC

Memory system

A memory system including a nonvolatile semiconductor storage device includes: a nonvolatile memory unit that includes a first data area in which data is frequently rewritten and a second data area in which data is hardly rewritten; and a control unit. The control unit sequentially selects logical block addresses in the second data area in which data is hardly rewritten and updates physical block addresses at new rewriting destinations in the first data area in which data is frequently rewritten to physical block addresses corresponding to the logical block addresses selected.
Owner:SONY CORP

Horizontal well directional sand blasting perforation and fracturing integral tool pipe column and construction method thereof

The invention relates to a horizontal well directional sand blasting perforation and fracturing integral tool pipe column and a construction method thereof. The tool pipe column comprises a safe joint, a first centralizer, a first rotating joint, a hydraulic sand blasting device, a second rotating joint, a second centralizer, a packer, a coupling positioning device and a guiding shoe, wherein the safe joint is arranged at the left end of the tool pipe column; the guiding shoe is arranged at the right end of the tool pipe column; the left end of the safe joint is connected with an oil pipe; the first centralizer, the first rotating joint, the hydraulic sand blasting device, the second rotating joint, the second centralizer, the packer and the coupling positioning device are sequentially arranged between the right end of the safe joint and the guiding shoe from left to right. The horizontal well directional sand blasting perforation and fracturing integral tool pipe column and the construction method provided by the invention have the advantages that the structure of the tool pipe column is simple; the directional san blasting perforation can be realized; the stratum energy is released to the greatest degree; the problem of shot hole compression zone of gunpowder perforation can be solved.
Owner:JEREH ENERGY SERVICES

IV catheter introducer with retractable needle

An IV catheter introducer having a retractable needle holder and a tubular plunger that are held by a detent structure in a preferred positional relationship prior to and during insertion of the catheter. Following insertion, the plunger is pushed past the detent structure, permitting a compressed spring to force the needle holder upwardly into the plunger. A vented end cap in the plunger permits rapid venting of air displaced during retraction of the needle holder. The needle holder includes a flash chamber that is easily viewable through a clear plastic housing. Wings are provided on the housing to facililate one-handed operation of the device. A method for assembling the subject catheter introducer is also disclosed.
Owner:RETRACTABLE TECH INC

Smart video monitoring system based on cloud platform

The invention relates to a smart video monitoring system based on a cloud platform, and belongs to the technical field of remote smart monitoring. The system is characterized in that a video monitoring cloud platform is developed on a server cluster established on the basis of a Hadoop cloud computing platform, and video data acquired by front-end equipment are transmitted to a server in a stream way; through adoption of a massive distributed cloud computing technology, real-time tracking, processing, analysis and outputting of video streams are realized; and a service is provided externally, so that a terminal user can perform checking and calling conveniently. In the system, the characteristics of distributed high-concurrence access storage, high availability, rapid response, easiness in management and maintenance and the like are integrated. Video acquisition, video encoding and transcoding, video data storage, a streaming media distributed server and a client are all distributed on a physical host node in an access network. Compared with a conventional video monitoring system, the smart video monitoring system has the advantages that video real-time processing and transcoding efficiency and video data storage capacity are increased greatly; the requirement of people on the video monitoring system in a big data era is met; and a relatively large commercial value is achieved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Apparatus for and method of multicast and broadcast service (MBS) macro-diversity based information processing

A novel and useful apparatus for and method of multicast and broadcast service (MBS) macro-diversity based information processing for use in MBS enabled wireless communication systems. MBS allocations and transmissions from base stations are not coordinated and independent of each other. The characteristics of the MBS signal, such as waveform, modulation, timing and frequency domain, used for transmissions in one or more MBS zones by a base station are uncoordinated and unsynchronized with respect to transmissions in other base stations or MBS zones. They all, however, contain the same information content and relate to the same CID (MCID and / or SA). The MS, using multiple detection techniques, uses time and frequency diversity reception techniques to combine MBS transmissions received from multiple base stations. Base stations and / or the network inform mobile stations of whether or not uncoordinated MBS data transmission is supported on the network via a TLV transmitted during the MBS connection setup process. If supported, mobile stations can receive multiple MBS data signals, combining them to generate a single MBS data output stream.
Owner:COMSYS COMM & SIGNAL PROC

Identity authentication method and system

The invention discloses an identity authentication method and an identity authentication system. The method comprises the following steps: fixed identity identification information, a key schedule and a dynamic identity function are exchanged between a server and a client; a first random number is transmitted to the server and first response information transmitted by the client and second random number are received; the hash values of the first random number, the first dynamic identity information and the fixed client identity identification information as original texts are calculated and compared with the first response information, if the same hash values are present, the authentication is qualified; second response information is calculated and transmitted to the client, so that the hash values of the second random number, the second dynamic identity information and the fixed server identity identification information as the original texts are calculated by the client and compared with the second response information; if the same hash values are present, the authentication is qualified. The method is characterized in that the dynamic identity information is flexible and changeable, the information can be prevented from being revealed, the password encoding difficulty is increased and the security of the identity authentication is improved. Besides the method further comprises the following steps of key negotiation, heartbeat authentication and key schedule update, and thus the communication security and the periodic identity authentication are ensured.
Owner:ZHEJIANG UNIV

Infusion device for prepare beverages from single-serving capsules

The device comprises a first portion (3) of an infusion chamber and a second portion (5) of an infusion chamber, movable with respect to each other according to an opening and closing direction; a first duct (49) to feed an infusion fluid into said infusion chamber; a second duct (31) for delivery of the food product from the infusion chamber; a pair of guide channels (17) to insert a capsule (C) into a space between the first portion of the infusion chamber and the second portion of the infusion chamber. The guide channels are each produced on a respective movable element (15); and the movable elements are positioned substantially opposite each other and can be opened to release the capsule into the infusion chamber.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV

Impedimetric biosensor and its use for rapid detection of bacterial pathogens in solution

A method and device for the rapid detection of microorganisms by detection of a change of impedance as a result of the microorganism being bound between interdigitated electrodes is described. In particular, the present invention relates to a handheld device to be used for the detection and, in many instances, the identification of the microorganism.
Owner:BOARD OF TRUSTEES OPERATING MICHIGAN STATE UNIV

Intelligent force control robot grinding system and method

The invention relates to an intelligent force control robot grinding system. The intelligent force control robot grinding system comprises a computer, an industrial camera, a robot, a robot controller, a calibration and compensation system, a safety protection unit, a force sensor and an automatic knife changing system. The computer is connected with the industrial camera. The robot controller is connected with the computer, the robot, the calibration and compensation system, the safety protection unit, the force sensor and the automatic knife changing system. A method comprises the steps that the computer receives workpiece scanning data collected by the industrial camera, generates a knife path and converts the knife path into the robot posture and the tail end path; calibration and compensation are carried out; the robot controller controls all joints to move while the robot posture and the tail end path are adjusted. Hardware of a high-precision force control grinding system is achieved, the path self-calibration and online compensation technology is adopted, and the machining of a complex hook face with the high requirements for machining precision and surface smoothness can be finished.
Owner:宏阔(南通)智能装备有限公司

Binocular endoscope operation visual system

InactiveCN101518438AMeet the needs of 3D stereo visionStereoscopic effect is goodLaproscopesEndoscopesVideo memoryLaparoscopy
A binocular endoscope operation visual system mainly comprises a binocular endoscope, an image server and an endoscope stereo display unit. Two ways of clear abdominal cavity image video signals are obtained by the binocular endoscope, two ways of video streams enter a memory of an image processing server or a video memory by a two-way image capture card, and a left-way image and a right-way image which are processed are respectively displayed in a left displayer and a right displayer. By a flat mirror, the contents of the left displayer and the right displayer respectively enter the left eye and the right eye of an observer, thereby the stereo effect is realized. The binocular endoscope operation visual system is suitable for the circumstance of a medical surgical endoscope operation, can completely satisfy the stereoscopic vision requirement of a laparoscope operation of a minimally invasive operation robot, realizes the binocular stereoscopic vision real-time display in the laparoscope operation, has reliable performance, simple structure and high commercialization level, and adapts the germfree circumstances of the operation.
Owner:NANKAI UNIV

Noninvasive nonlinear systems and methods for predicting seizure

The present invention relates to methods and devices for noninvasive nonlinear prediction of ictal onset in patients afflicted by neurological disease. In particular, the present invention provides methods and devices for noninvasive nonlinear prediction of seizures in patients afflicted with epilepsy. The devices and methods preferably being based on analysis of two or more electroencephalogram (EEG) recordings, one set of recordings taken from an electrode close to the region of ictal onset, and a second or more set of recordings (e.g., concurrent readings) taken from a region remote from the region of ictal onset.
Owner:RGT UNIV OF MICHIGAN

Transformer paper oil insulation experiment device integrated with electric heating combination ageing and partial discharge

The invention provides a transformer paper oil insulation experiment device integrated with electric heating combination ageing and partial discharge, and provides a corresponding experiment method. The experiment device comprises a high voltage portion, a low voltage portion and a sealing tank portion. The device can provide a platform of electric heating combination ageing and partial discharge experiments for a transformer paper oil insulation defect model, and can provide experiments of corona discharge, creeping discharge and air-gap discharge models in oil. The device has good air-tight performance, and can be isolated from external air and other influences. The whole system self cannot produce partial discharge, and the device cannot produce rust and other impurities in the partial discharge, can guarantee reliability of the partial discharge, and is simple in structure, convenient to operate, and capable of achieving good test effects.
Owner:STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +2

Plate type heat exchanger and method of manufacturing the heat exchanger

A plate heat exchanger includes a plurality of plates sandwiched between a pair of end plates. Each of the plurality of plates has two passageways defined therein that are not in fluid communication with each other. Alternatively, some of the plurality of plates have a passageway, while some of the remaining plates have another passageway. Two fluids flow through the two passageways in a countercurrent fashion. Because the countercurrent flows are superior in heat transfer efficiency, it is possible to enhance the performance and reduce the size of the plate heat exchangers.
Owner:CONSOL SYST +1

Device for automatically correcting accelerator pedal misoperation to braking operation by electrical and mechanical combination

The invention relates to a device for automatically correcting an accelerator pedal misoperation to a braking operation by electrical and mechanical combination, which belongs to a device capable of obtaining a mechanical operation for driving a brake device by means of electrical signal conversion of a mechanical operation of stepping on an accelerator pedal by mistake. The device comprises a sensor and is characterized in that the device further comprises a signal analyzer and a brake starting mechanism, wherein the sensor is connected with the signal analyzer to transmit an accelerator signal from the sensor to the signal analyzer, the signal analyzer is connected with the brake starting mechanism and transmits a brake start-up signal to the brake starting mechanism. The invention has the advantages that the mechanical operation of stepping on the accelerator pedal by mistake is converted into an accelerator electrical signal through the sensor, an electrical signal of serious accelerator pedal misoperation is analyzed, then the electrical signal of serious accelerator pedal misoperation is converted into an electrical signal for starting the brake device, and the brake starting mechanism generates a braking mechanical operation, as a result, the mechanical operation of stepping on the accelerator pedal by mistake is automatically converted into the braking operation of thevehicle, which prevents the occurrence of serious vehicle accidents caused by the misoperation of the accelerator pedal.
Owner:ZHEJIANG XIANAN AUTOMOBILE BREAKING SYST

Interactive optical cards and other hand-held devices with increased connectivity

A system for deriving benefits from the reception and processing of composite video signals by a hand-held device, such as a smart card. Video signals are modulated with auxiliary data creating composite video signals. The composite video signals are then transmitted to and received by a hand-held device. The auxiliary data is then detected in the modulated video signal by circuitry of the hand-held device. The user receives benefits resulting from the reception of the auxiliary data.
Owner:KOPLAR INTERACTIVE SYST INT

System and method for dispensing consumer products

A system and method for selling and / or dispensing consumer products from a vending or transactional-based machine is disclosed. The vending or transactional-based machine comprises an aerial display device that displays an aerial image designed to attract the attention of potential consumers and sell advertising, special promotions or certain products. Once a consumer begins to interact with the vending machine, demographic data is collected or correlated with the product purchased or dispensed. The consumer can initiate and conclude a purchase by merely pointing at the desired product. A mechanism is provided that accepts payment by currency, credit card or electronically.
Owner:PROVISION INTERACTIVE TECH

Integrated navigation and positioning system and method for submarine oil-gas pipe detection robot

PendingCN110006433AExact effective positionAccurate and effective attitude informationNavigational calculation instrumentsNavigation by speed/acceleration measurementsOcean bottomTime course
The invention belongs to the technical field of navigation and provides an integrated navigation and positioning system and method for a submarine oil and gas pipe detection robot. The integrated navigation and positioning system mainly comprises a differential GPS system, an ultra-short baseline positioning system (USBL), a strapdown inertial navigation system (SINS), a Doppler log (DVL) and thelike. The differential GPS system accurately positions geographic position coordinates of a surface vessel; the ultra-short baseline positioning system determines a three-dimensional vector position of the underwater unmanned aerial vehicle relative to the water surface unmanned ship; the strapdown inertial navigation system detects the real-time course and attitude of the underwater unmanned vehicle; and the Doppler log detects the absolute running speed of the underwater unmanned vehicle. The SINS and the DVL are combined to realize short-time high-precision positioning of the underwater unmanned vehicle, and the differential GPS and the USBL are combined to realize absolute positioning of the underwater unmanned vehicle; the long-endurance and long-voyage high-precision positioning of the underwater unmanned vehicle is realized, and the accurate position information is provided. The invention further provides a combined positioning method of various navigation instruments, and a solution is provided for underwater high-precision combined navigation.
Owner:HARBIN ENG UNIV

Bicycle frame for receiving a battery unit and associated battery unit

The invention relates to a bicycle frame comprising a tube section having an interior space for receiving at least one battery unit that is suitable as a source of energy for an electromotive bicycle drive, as well as to a battery unit insertable therein.To provide an easy operation and at the same time a highly stabilized placement of the battery, it is suggested that said tube section is provided with a lateral opening substantially extending in the direction of extension of said tube section, wherein said battery unit is insertable into said interior space through said lateral opening.
Owner:THOMUS VELOSHOP

Non-contacting crack sensor

A non-contacting sensor based on inductive coupling for detecting failure initiation, and crack propagation in composite materials is disclosed. A very low cost crack sensing transducer or test pattern that can be imbedded into a structural material, interrogated, and powered wirelessly is described. A detection method for interrogating the crack sensor utilizing RF inductive coupling is disclosed. The proposed sensor consists of minimal components resulting in maximum reliability.
Owner:XENOTRAN

Corrugated double-inner-cavity gas-powered flexible micro finger, control method and grabbing system

The invention discloses a corrugated double-inner-cavity gas-powered flexible micro finger, a control method and a grabbing system. The corrugated double-inner-cavity gas-powered flexible micro finger comprises a double-inner-cavity gas-powered flexible micro finger body composed of two independent pneumatic half-corrugated hollow rubber tube half-fingers I and II which are symmetrically arranged. A thin sheet type bending tilt angle sensor making contact with the two half-fingers is arranged between the two half-fingers. The two half-fingers are provided with a gas inlet and outlet I and a gas inlet and outlet II respectively. The outer side of the top face of each independent pneumatic half-corrugated hollow rubber tube half-finger is a corrugated surface, the bottom face of each independent pneumatic half-corrugated hollow rubber tube half-finger is a horizontal plane, and the top face and the bottom face of each independent pneumatic half-corrugated hollow rubber tube half-finger are connected into a whole to form a hollow sealing cavity. The bottom faces of the two independent pneumatic half-corrugated hollow rubber tube half-fingers I and II are aligned with each other and then are pasted on the thin sheet type bending tilt angle sensor. The corrugated double-inner-cavity gas-powered flexible micro finger has the advantages of being low in cost, safe in cleaning, easy and convenient to install, good in flexibility, smooth in motion, low in noise and free of pollution, having mechanical performance similar to that of biological muscles, and the like.
Owner:SHANDONG ACAD OF SCI INST OF AUTOMATION

Vehicle-mounted 360-degree panorama mosaic method

The invention discloses a vehicle-mounted 360-degree panorama mosaic method which includes utilizing a double-curve model to match a fisheye camera model, and calculating fisheye camera model parameters; confirming a mapping relation between a picture coordinate system and a camera coordinate system; confirming a homography matrix from the camera coordinate system to a ground coordinate system; generating a mapping lookup table from the picture coordinate system to the ground coordinate system; and enabling ground pictures obtained by a camera to be matched into a final aerial view according to the mapping lookup table. According to the vehicle-mounted 360-degree panorama matching method, for complexity of images of four view fields of the vehicle-mounted environment, the mapping lookup table from an original view field to the aerial view is built by utilizing the mapping relation. Compared with feature point match, the method only depends on the coordinate relation, a coordinate is relatively fixed when the camera is fixed, so compared with matching, the method is reliable. The original pictures are directly mapped to positions below the camera coordinate system, mapping from the camera coordinate system to a world coordinate system is omitted, errors are reduced, and accuracy is high.
Owner:KUNSHAN BRANCH INST OF MICROELECTRONICS OF CHINESE ACADEMY OF SCI

Hot tapping plugging construction method of long natural gas delivery pipeline

The invention discloses a hot tapping plugging construction method of a long natural gas delivery pipeline. The method specifically comprises the following implementation steps of: performing non-stop tapping operation; performing non-stop plugging operation; disassembling a pipeline of a cutting section; performing end connecting operation; restoring; and performing anti-corrosive backfill. The construction process of the method has the characteristics of reliability, economy, safety, simplicity in operation of an entire construction process, light labor intensity, no influence on downstream gas utilization, short working period, cost saving, suitability for various environments and the like, so that the method is increasingly generalized and applied in natural gas reconstruction and expansion projects.
Owner:CHINA CONSTR SEVENTH ENG DIVISION CORP LTD

Electrical adapter assembly

An electrical adapter (100) includes a first housing member (1), a second housing member (2) coupled with the first housing member, and a number of first, second and third conductive terminals (312, 322, 332). The first housing member has a first mating face (11) defining a first upper and lower receptacles (111, 112). The second housing member has a second mating face (21) defining a second receptacle (211). The first, second and third conductive terminals (312, 322, 332) respectively have contacting portions (314, 324, 334) extending into corresponding receptacles. Latching means are arranged between the first and second housing members so as to fasten the first housing member and the second housing together.
Owner:HON HAI PRECISION IND CO LTD
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