315results about How to "Eliminate variation" patented technology

The present invention provides skin grafting and devices that comprise a systematic approach to the process of skin grafting, i.e., harvesting, post-excision processing and application of donor skin and pre and post-graft treatment of the recipient site.

A heatsink mounted to an electronic device having an area substantially greater than that of the device includes a heatpipe in the heatsink for transferring heat within the heatsink to reduce thermal gradients therein.

A hand-held imager which is capable of reading both linear and two dimensional symbologies, which can perform focusing and illuminating steps quickly and accurately so as to eliminate variation in the position of the imager relative to the code becoming a negative factor, in which can operate in environment where the imager is anywhere from 1.5 inches to 16 inches from the code. The imager includes an imaging system having a focusing system, an illumination system, and a two-dimensional photodetector which forms an image of the coded symbology. After achieving targeting of the coded symbology, the scanning system adjusts the focus between multiple different focuses, and utilizes a portion of the two-dimensional photodetector to determine the optimum focus. Upon the determination of optimum focus, the focusing system is returned to the focusing configuration established in the initial focusing step, and an image is created using the entire two-dimensional photodetector. Optimum illumination is determined using the same two-dimensional photodetector.

A technique for calculating magnetic field information from a magnetic sensor employs a sensing unit containing the magnetic sensor and another sensor capable of providing a measure of change in orientation. The method includes sampling a magnetic field at points in time and sampling the other sensor at each point in time. The method then entails rotating to a common time instant the magnetic field samples using the orientation of the sensing unit estimated by means of the other sensing modality in order to eliminate variations between magnetic samples due to changes in orientation of the sensor unit within such time interval. The magnetic samples, corrected for the sensor rotation in such interval, are used to calculate magnetic field related information specific to the given time interval and the magnetic field related information is communicated to a receiver at a rate lower than the sample rate.

A method for acquiring an image or spectrum of a subject or object residing within the magnetic field of a magnetic resonance apparatus, comprises the steps of:

• • executing a predetermined pulse sequence for applying gradient magnetic fields and for coupling in electromagnetic excitation pulses to induce nuclear magnetic resonance within the subject or object;
  • detecting an electromagnetic signal resulting from said magnetic resonance; and
  • constructing at least one image or magnetic resonance spectrum of said subject or object from said detected electromagnetic signal.

According to the invention, said coupling in of the electromagnetic excitation pulse and/or said detecting of the electromagnetic signal are carried out substantially by means of travelling electromagnetic waves.

In a method, device and compute-readable medium for evaluating the prevalence of different postures of a patient, signals are sensed that indicate the posture of the patient during a monitoring period having a predetermined length, specific body postures of the patient are determined during this monitoring period from the sensed signals, the amount of time the patient spends in each of the specific postures is measured, information regarding each specific posture, and the associated amount of time spent in that posture, are stored, and the prevalence of the different postures of the patient is evaluated by classifying the stored information with respect to specific postures and the amount of time in each posture position.

A system for the detection and analysis of at least one volatile substance in breath samples of a subject, including at least one source of infrared radiation adapted to the wavelength range of specific absorption peaks of said substances, a plurality of reflecting surfaces of said radiation adapted for collimation onto at least one detector providing a plurality of electrical output signals corresponding to the transmission of said radiation within wavelength intervals corresponding to said absorption peaks, at least one measuring cell including a mechanical support structure defining the position of said source, reflecting surfaces and detector, adapted to the reception and disposal of said breath sample, and exposing it to said radiation, at least one electronic signal processing unit with capacity to analyse said signals with respect to pre-programmed information concerning infrared absorption spectra of said substances. The response of the system being displayed or otherwise communicated, and perceived as essentially instantaneous.

An electro-optical device includes: a screen on which an image is displayed; a first substrate and a second substrate that are provided opposite to each other; liquid crystal that is sandwiched between the first substrate and the second substrate; an electrostatic capacity detecting unit that outputs a detection signal whose level corresponds to the value of a capacitance that is formed by the liquid crystal, a first electrode, and a second electrode; an image displaying unit that includes the liquid crystal, a third electrode, and a fourth electrode, the image displaying unit controlling the transmission factor of the liquid crystal for displaying an image on the screen; a first memory unit that memorizes the level of the detection signal outputted by the electrostatic capacity detecting unit in a state in which a detection target object is not in contact with the screen as reference data; a second memory unit that memorizes the level of the detection signal outputted by the electrostatic capacity detecting unit in a state in which a judgment is made as to whether the screen is contacted or not as detection target data; a difference data generating unit that generates a difference between the reference data that has been read out of the first memory unit and the detection target data that has been read out of the second memory unit as difference data; and a judging unit that judges whether the detection target object is in contact with the screen or not on the basis of the difference data.

A passive optical network (PON) in accordance with the invention uses a superframe having a number of subframes arranged in a two-dimensional array, wherein for normal data transfer subframes are allocated to each optical network unit (ONU) column by column, left to right, and within each column subframes are allocated from top to the bottom. Initially, for ranging, at least two subframes are allocated to an ONU, adjacent to a diagonal of the superframe (which may go from the top left corner of the superframe to the bottom right corner, or alternatively from the top right corner to the bottom left corner). In some embodiments, instead of allocating subframes column by column, the subframes are evenly spaced apart from one another, and conflicts with a previous allocation are resolved by adjustment, and optionally an evaluation function may be used to find an optimal allocation.

A matched pair of tilted gratings may be formed in a section of optical fiber (or waveguide) and used as a “tap” to measure the power of an optical signal passing through the fiber. By using a pair of highly-tilted gratings (e.g., tilted at an angle of 45° with respect to the optical axis) and orienting the gratings to be orthogonal with respect to one another (i.e., azimuthal orthogonality around the fiber axis), a pair of orthogonally polarized beams will be out-coupled from the propagating signal. Since the pair of beams are orthogonal, their sum can be made insensitive to variations in polarization of the optical signal propagating along the fiber.

Disclosed herein is a storage element including: a first electrode; a second electrode formed in a position opposed to the first electrode; and a variable-resistance layer formed so as to be interposed between the first electrode and the second electrode. The first electrode is a tubular object, and is formed so as to be thicker on an opposite side from the variable-resistance layer than on a side of the variable-resistance layer.

A MOSFET structure includes a planar semiconductor substrate, a gate dielectric and a gate. An ultra-thin (UT) semiconductor-on-insulator channel extends to a first depth below the top surface of the substrate and is self-aligned to and is laterally coextensive with the gate. Source-drain regions, extend to a second depth greater than the first depth below the top surface, and are self-aligned to the UT channel region. A first BOX region extends across the entire structure, and vertically from the second depth to a third depth below the top surface. An upper portion of a second BOX region under the UT channel region is self-aligned to and is laterally coextensive with the gate, and extends vertically from the first depth to a third depth below the top surface, and where the third depth is greater than the second depth.

A luminance correction system includes an image pickup device configured to pick up a test image and generate pickup data, a parameter calculation device configured to calculate a first target luminance that is a maximum luminance of a reference area in a display panel and a detected maximum luminance that is a luminance of a correction target sub-pixel based on the pickup data with respect to a maximum grayscale, determine a second target luminance by correcting the first target luminance, and calculate correction parameters, and a display device including the display panel, the display device configured to compensate the input grayscale of the correction target sub-pixel to a target grayscale based on the correction parameters and generate a data voltage by adjusting upward a gamma voltage corresponding to the target grayscale.

This invention is concerned with the control of implanting ions into a substrate, such as doping semiconductor wafers. The ion beam is measured to ensure waters are implanted with the correct, uniform ion dose. The incident ion beam comprises ions and neutrals, yet detectors measure only ions. The ions/neutrals ratio varies with the ion implanter's chamber pressure that in turn is known to rise and fall when the ion beam is on and off the wafer respectively, according to a characteristic time constant. This invention provides methods of correcting measured ionic currents to account for neutrals using the time constant. Initially an assumed time constant is used that is later improved by measuring the ionic current after a delay sufficient to allow the chamber pressure to recover to its base value. The time constant may also be improved by removing any quadratic variation in already determined true beam current values.

The enumeration of cells in fluids by flow cytometry is widely used across many disciplines such as assessment of leukocyte subsets in different bodily fluids or of bacterial contamination in environmental samples, food products and bodily fluids. For many applications the cost, size and complexity of the instruments prevents wider use, for example, CD4 analysis in HIV monitoring in resource-poor countries. The novel device, methods and algorithms disclosed herein largely overcome these limitations. Briefly, all cells in a biological sample are fluorescently labeled, but only the target cells are also magnetically labeled. In addition, non-magnetically labeled cells are imaged for viability in a modified slide configuration. The labeled sample, in a chamber or cuvet, is placed between two wedge-shaped magnets to selectively move the magnetically labeled cells to the observation surface of the cuvet. An LED illuminates the cells and a CCD camera captures the images of the fluorescent light emitted by the target cells. Image analysis performed with a novel algorithm provides a count of the cells on the surface that can be related to the target cell concentration of the original sample. The compact cytometer system provides a rugged, affordable and easy-to-use technique, which can be used in remote locations.