123results about How to "Correction accuracy" patented technology

An apparatus and method for non-invasive measurement of glucose in human tissue by quantitative infrared spectroscopy to clinically relevant levels of precision and accuracy. The system includes six subsystems optimized to contend with the complexities of the tissue spectrum, high signal-to-noise ratio and photometric accuracy requirements, tissue sampling errors, calibration maintenance problems, and calibration transfer problems. The six subsystems include an illumination subsystem, a tissue sampling subsystem, a calibration maintenance subsystem, an FTIR spectrometer subsystem, a data acquisition subsystem, and a computing subsystem.

Volumetric accuracy in hemodialysis systems is provided by swapping pumps between the replacement fluid side and the output side for a hemofiltration system and between the return fluid side and the sorbent side for a closed-loop, sorbent-based system, such that same quantity of fluid is pumped at each point after the end of an even number of pump swaps. A method for calculating the time interval between swaps is provided based on an allowable difference in amount pumped in the two functions at any given time. A mechanism is provided for compensating for the differences in head pressure presented to the pumps for fluid coming from the replacement-fluid containers or the reservoir and that coming back from the patient through the dialyzer. The pump-swapping system provides an accurate means that can be inexpensively implemented, including using a disposable device.

A medical device system is provided herein which has an elongated, flexible hollow member with an expandable infusion segment attached at the most distal end of the device. The device has a plurality of fluid infusion ports on the expandable infusion segment for delivering an intended fluid to a target site in a body lumen. Additionally, a method is provided herein for infusing an intended fluid to a target site within a body lumen.

An eye-gaze tracking device, which detects a gaze direction of a user based on an electro-oculogram, includes: a drift estimating unit which estimates drift noise included in a set of observation voltages among observation voltages that are electro-oculograms generated in a living body and observed at the plurality of electrodes, based on a component outside an electro-oculography subspace that is an assembly of sets of electro-oculograms theoretically observed at a plurality of electrodes; and an eye-gaze tracking unit which detects la the gaze direction of the user, based on a signal generated by removing, from the observation voltages, the drift noise estimated by the drift estimating unit.

A method of designing lithographic masks is provided where mask segments used in a model-based optical proximity correction (MBOPC) scheme are adaptively refined based on local image information, such as image intensity, gradient and curvature. The values of intensity, gradient and curvature are evaluated locally at predetermined evaluation points associated with each segment. An estimate of the image intensity between the local evaluation points is preferably obtained by curve fitting based only on values at the evaluation points. The decision to refine a segment is based on the deviation of the simulated image threshold contour from the target image threshold contour. The output mask layout will provide an image having improved fit to the target image, without a significant increase in computation cost.

The vehicle mounted perception sensor gathers environment perception data from a scene using first and second heterogeneous (different modality) sensors, at least one of the heterogeneous sensors is directable to a predetermined region of interest. A perception processor receives the environment percpetion data and performs object recognition to identify objects each with a computed confidence score. The processor assesses the confidence score vis-à-vis a predetermined threshold, and based on that assessment, generates an attention signal to redirect the one of the heterogeneous sensors to a region of interest identified by the other heterogeneous sensor. In this way information from one sensor primes the other sensor to increase accuracy and provide deeper knowledge about the scene and thus do a better job of object tracking in vehicular applications.

An apparatus and method for expanding the FOV of a truncated computed tomography (CT) scan. An iterative calculation is performed on the original CT image to produce an estimate of the image. The calculated estimate of the reconstructed image includes the original image center and a estimate of the truncated portion outside the image center. The calculation uses an image mask with the image center as one boundary.

A semantic extraction method based on a natural language is provided. In a character library based on a single-character granularity, a character of an input natural language is queried, to obtain first semantic vectors representing semantic descriptions of the character. Candidate semantic intentions corresponding to second semantic vectors and weight vectors corresponding to the candidate semantic intentions are obtained, wherein the second semantic vectors are obtained by using a neural network and correspond to different permutations and combinations of the first semantic vectors. A candidate semantic intention is selected as a final semantic intention of the natural language based on a preset condition, and key information is obtained corresponding to the final semantic intention according to a weight vector corresponding to the final semantic intention.

The invention relates to detecting coagulation and coagulation-related activities including agglutination and fibrinolysis of samples. More particularly the invention relates to methods and apparatus for monitoring coagulation and/or obtaining a coagulation time of a sample using NMR-based detectors.

The present invention relates to a method for dosing a pharmaceutical product in a packaging machine comprising at least one volumetric dosing unit with a dosing chamber. The method comprises metering a volume of a first component, weighing the first component, introducing the first component into a package and metering a volume of a second component, introduce

g the second component into the package and weighing of the package into which the components have being introduced.

The invention further relates to a system for dosing a pharmaceutical product in a packaging machine comprising at least one volumetric dosing unit with a dosing chamber. The system comprises at least one volumetric dosing unit for metering a volume of the components. Further, means for introducing the said components into a package and means for weighing the components and the package are comprised. The means for weighing comprises a first weighing unit for weighing the package and the components, and a second weighing unit for weighing the first component after metering the first component by volume and before introducing the first component into the package.

A method of manufacturing an inlayed panel uses the steps of providing an art master rendering as constitute a decorative design for the inlaid panel; scanning electronically the art master to form an art master data file; transferring the art master data file to a CAD software system to form an art master CAD file; coordinating a laser beam to cut-through a first background panel and create negative image voids; driving a CNC laser cutting machine in response to the machine code coordinates; coordinating a laser beam to cut through a second panel for forming positive images that become inlay elements; bonding the first background panel and the second panel; placing the inlay element in appropriate voided spaces; and finishing the composite panel and the inlay elements. A decorative panel is also formed of panel portions cut by laser using data inputted directly into a computer graphics system.

For the purpose of solving problems inherent to a white Al₂O₃ spray coating, i.e. drawbacks that the injury resistance, corrosion resistance, heat resistance, abrasion resistance and the like are poor and the light reflectance is high because the coating is porous and weak in the bonding force among particles, there are proposed a spray coating member having excellent injury resistance and the like in which a surface of a substrate is covered with a colored Al₂O₃ spray coating of a luminosity lower than grayish white, achromatic or chromatic color.

An apparatus and method for expanding the FOV of a truncated computed tomography (CT) scan. An iterative calculation is performed on the original CT image to produce an estimate of the image. The calculated estimate of the reconstructed image includes the original image center and a estimate of the truncated portion outside the image center. The calculation uses an image mask with the image center as one boundary.

A method and system for expanding a document set as a search data source in the field of business related search. The present invention provides a method of expanding a seed document in a seed document set. The method includes identifying one or more entity words of the seed document; identifying one or more topic words identifying one or more topic words related to the based entity word in the seed document where the entity word is located; forming an entity word-topic word pair from each identified topic word and the entity word on the basis of which each topic word is identified; and obtaining one or more expanded documents through web by taking the entity word and topic word in the each entity word-topic word pair as key words at the same time. A system for executing the above method is also provided.

This invention relates to a system and a method for calibrating short belt against a correct position. A system consists of a four-bar-linkage, a motor a cam, which is hinged with a push rod, and a position monitor. The four-bar-linkage is used as an actuator. The motor drives the cam to actuate the four-bar-linkage via the push rod hinged with the cam. The push rod is respectively hinged with the cam and a movable rod of the four-bar-linkage as its both ends. The position monitor is equipped with a detecting lever. A roller is elastically pressed to contact with an edge of the belt. The method is carried out by: feeding the detected position signals into computer system, outputting a calibrating signal to the motor and to change the tension forces on both edges of the conveying belt via the cam mechanism and actuator. It is simple and reliable.

An image signal processing apparatus includes a detecting unit configured to detect a motion vector of a tracking point provided in an object in a moving image, a computing unit configured to compute a reliability parameter representing the reliability of the detected motion vector, a determining unit configured to determine whether the detected motion vector is adopted by comparing the computed reliability parameter with a boundary, an accumulating unit configured to accumulate the reliability parameter, and a changing unit configured to change the boundary on the basis of the accumulated reliability parameters.

The present invention provides a master tire for inspecting the accuracy of a tire tester easily and securely. A master tire 100 according to the present invention is equipped with an upper-lower rim member 120, a cylindrical member 110 equivalent to the tread portion of a tire, and leaf spring 130 secured to the cylindrical member 110 and the rim member 120 with bolts 140 and bolts 142. A spindle 21 is secured to the rim member 120 so that the center axis thereof is not displaced. The rim member 120 is vertical to or slightly inclined with respect to the spindle 21. The cylindrical member 110 is made of a metallic material, such as iron or aluminum, or a hard plastic having stable characteristics.

In a piloted router bit, the knife is conveniently aligned by positioning one of its edges against a spacer or washer interposed between the tool section of the router bit and its rotating bearing.

The present invention relates to micro machined metal diaphragm for Fabry-Perot interferometer sensor and Fabry Perot Fiber optic Sensor system using said metal diaphragm and method of fabrication thereof. Fabry Perot sensor with micro machined metallic diaphragms at the fiber optic end is developed ensuring accuracy, controllability by deterministic process. Advantageously, the system involves the metal diaphragm with high reflectivity inside surface facing the fiber end as a basic functional element. Importantly, the micro machined metal diaphragm is miniaturized to suit various critical applications including bio medical sensing devices for measuring various physiological parameters with desired accuracy. The metallic diaphragm based Fabry-Perot fiber optic sensor is directed to favour wide scale applications such as for measuring various parameters in nuclear industry, Chemical and Electrically harsh industry, biomedical applications with desired precision and favorable performance largely unaffected by radiation, high temperature or highly corrosive environment at work/application.

The invention relates to a laser directional drilling tool for a coal-bed-methane level development hole and a drilling method using the same. The drilling method includes: using high-energy laser beams to rapidly heat local coal rock to enable the coal rock to break due to excessively high internal stress, and allowing high-speed auxiliary air to bring away debris of the coal rock. The drilling tool comprises a laser emitter, and a deflection control part and a deflection actuating part thereof. The deflection control part of the laser emitter is composed of a battery box, a circuit board and the like. The deflection actuating part of the laser emitter comprises a cam and a gear. The cam controls deflection of the laser emitter. The gear controls overall rotation of the laser emitter. In the drilling method, the drilling tool is lowered into a drill hole to be drilled, drilling is started according to the principle of laser rock crushing, data acquisition, storage and processing are performed simultaneously, and a stepping motor is adjusted to control deflection of the laser emitter so as to automatically and directionally correct the deflection in drilling. The drilling tool and the drilling method are applied to directional drilling for the coal-bed-methane level development hole and are higher in drilling efficiency, better in directional control performance and lower in bit consumption.

The invention discloses an online weld joint rectification method for an arc welding robot based on structured light visual sensing. The method comprises the following steps: S1, in a welding process,carrying out filter smoothing treatment on a weld joint point detected by a structured light visual sensor to obtain a smooth detection track; S2, establishing a rectification triangle according to atarget point searching criterion, and calculating a deviation value between the current point position of a robot spray gun and the position of the detected weld joint point; and S3, outputting a controlled quantity through a fuzzy controller and the deviation value to obtain a rectification value of the current point of the robot along the weld joint perpendicular direction, wherein the robot isrectified in position according to the rectification value. According to the method disclosed by the invention, the dynamic property of rectifying the tail end of the spray gun can be controlled according to the deviation value, the speed along the weld joint direction is steady, and relatively high response is available in the direction perpendicular to the weld joint. In the rectification process, the gesture of the robot is not changed, and the gesture of the robot is kept consistent with the initially demonstrated gesture, so that the continuity, stability and instantaneity of the gesturein the online rectification process are guaranteed.