47 results about "Angular correlation" patented technology

A system for treating a selected dermatologic problem and a head for use with such system are provided. The head may include an optical waveguide having a first end to which EM radiation appropriate for treating the condition is applied. The waveguide also has a skin-contacting second end opposite the first end, a temperature sensor being located within a few millimeters, and preferably within 1 to 2 millimeters, of the second end of the waveguide. A temperature sensor may be similarly located in other skin contacting portions of the head. A mechanism is preferably also provided for removing heat from the waveguide and, for preferred embodiments, the second end of the head which is in contact with the skin has a reflection aperture which is substantially as great as the radiation back-scatter aperture from the patient's skin. Such aperture may be the aperture at the second end of the waveguide or a reflection plate or surface of appropriate size may surround the waveguide or other light path at its second end. The portion of the back-scattered radiation entering the waveguide is substantially internally reflected therein, with a reflector being provided, preferably at the first end of the waveguide, for returning back-scattered light to the patient's skin. The reflector may be angle dependent so as to more strongly reflect back scattered light more perpendicular to the skin surface than back scattered radiation more parallel to the skin surface. Controls are also provided responsive to the temperature sensing for determining temperature at a predetermined depth in the patient's skin, for example at the DE junction, and for utilizing this information to detect good thermal contact between the head and the patient's skin and to otherwise control treatment. The head may also have a mechanism for forming a reflecting chamber under the waveguide and drawing a fold of skin therein, or for providing a second enlarged waveguide to expand the optical aperture of the radiation.

Data are acquired using multi-array logging tool in a borehole having an angle of inclination to a normal to the bedding plane of earth formations. The multi-array measurements are filtered using angle dependent filters to give a filtered curve corresponding to a target one of the multi-array measurements using angle dependent filters. Correlation coefficients are determined for a set of possible dip angles and a relative dip angle is estimated from the correlation coefficients. This dip angle estimate together with bed boundaries obtained from the multi-array measurements are used for inverting multi-component measurements alone or jointly with multi-array measurements to refine the relative dip angle interpretation and give horizontal and vertical formation resistivity.

Methods and apparatus for navigating with the use of correlation within a select area are provided. One method includes, storing data required to reconstruct ranges and associated angles to objects along with statistical accuracy information while initially traversing throughout the select area. Measuring then current ranges and associated angles to the objects during a subsequent traversal throughout the select area. Correlating the then current ranges and associated angles to the objects to reconstructed ranges and associated angles to the objects from the stored data. Determining at least one of then current location and heading estimates within the select area based at least in part on the correlation and using the least one of the then current location and heading estimates for navigation.

An angle-dependent interference pigment based on transparent or translucent inorganic flake serving as a substrate is provided. The substrate is coated by coatings (A)+(B)+(C) and optionally coating (D), so as to form a “high-low-high” refractive index layered structure. The coatings (A) and (C) consist of metal oxides, silicate, aluminates and/or a mixture thereof. The coating (B) consist of silicon oxide, hydrous silicon oxide, aluminum oxide, hydrous aluminum oxide, magnesium oxide, hydrous magnesium oxide and/or a mixture thereof. The angle-dependent interference pigments have high color saturation in the transitional region and a significantly gradual color change in the color changing region. The present pigments can be used as colored coatings, including printing ink, or can be used in the preparation of plastics, glass, ceramics and the like. The pigment of the present invention is particularly used in the cosmetic industry which has a very high requirement on gradual color change.

Proposed is a light sensor (1), comprising at least one wavelength selective photo-detector (10), a lens (20) and an aperture (30).The wavelength selective photo-detector allows detecting light within a predefined wavelength range falling on the sensor. The lens project light on the photo-detector and the aperture defines a field of view of the light sensor. The photo-detector (10), the lens (20), and the aperture (30) are arranged in a telecentric configuration. Advantageously, this allows light to impinge on the wavelength selective photo-detector within a predefined range of angles irrespective of the direction of the light incident on the aperture, thus removing the angle dependent response of the wavelength selective photo-detector.

The invention discloses an improved type principal component analysis model-based fault detection method which is aimed at improving effects exerted by a conventional PCA algorithm on fault detection via further discovery of characteristics of distance correlation between training data. The method comprises the following steps: an angle correlation matrix and a distance correlation matrix of the training data are calculated, a new correlation matrix is obtained after the angle correlation matrix and the distance correlation matrix are added up, and corresponding characteristic values and vectors are calculated. An improved PCA model is built via use of the characteristic vectors, and the PCA model is applied to on-line fault detection. Compared with a conventional method, the fault detection method disclosed in the invention is advantageous in that angle correlation and distance correlation of the training data are taken into account at an off line modeling phase, data correlation characteristics are fully discovered, the improved type PCA model built via the fault detection method can be used for comprehensively describing potential characteristics of normal data, and good fault detection effects should be exerted.

A technique for improving ion implantation based on ion beam angle-related information is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for improving ion implantation. The method may comprise obtaining angle-related information associated with an ion beam. The method may also comprise calculating, based on the angle-related information, an ion beam angle distribution over a wafer for one or more potential scanning modes. The method may further comprise selecting a desired scanning mode from the one or more potential scanning modes based on an evaluation of performance metric caused by the ion beam angle distribution.

A method of medical ultrasonic imaging is provided. The method includes transmitting a plurality of ultrasonic waves into a volume such that each successive wave is transmitted into the volume at a steering angle different than each preceding transmitted wave, receiving a plurality of ultrasonic echoes for each of the plurality of transmitted ultrasonic waves, each received echo is indicative of a density interface within the volume, each set of received echoes that corresponds to a single transmitted wave defines a steering frame, combining steering frames into a compound image, and identifying distal shadows in each steering frame.

A display apparatus includes: a light source; spatial light modulation device for modulating light emitted by the light source based on a video signal; intensity distribution adjusting means for changing an angle-dependent intensity distribution of an incident light in response to luminance factor in the video signal, the intensity distribution adjusting means being arranged ahead of or behind the spatial light modulation device; and correction means for correcting the video signal in accordance with an intensity distribution adjusted by the intensity distribution adjusting means, and supplying a corrected video signal to the spatial light modulation device, in which the correction means has a plurality of correction tables each corresponding to a predetermined intensity distribution, generates a mixed correction value by mixing correction values in the plurality of correction tables at a mixing ratio determined by an individual intensity distribution, and corrects the video signal by using the mixed correction value.

A training device is proposed which has actuating elements which can be moved continuously in rotation and are connected to one another and are intended for a pair of limbs of a person, drive means for driving the actuating elements, and an electronics unit for regulating and/or controlling the movement of the actuating elements, with means being provided for visual, acoustic, touch-based or smell-based notification or display of a training parameter objective and of an actual value which can be compared with it, or of a training parameter target deviation in relation to an actual value, and the training parameter target being the speed of rotation, the torque or the actuating element position, or a variable derived therefrom. Moreover, a side-related and an angle-related training parameter objective with corresponding notification or display is proposed. In addition, part of the invention is a training device which, in isokinetic training, changes a desired speed of rotation as a function of cardiovascular variables or the driving torque applied to the actuating elements by the person doing the training.

A method for estimating the noise of a two-photon entangled state, including generating pairs of photons; for each pair of photons, defining a first polarization measurement, associated with a first angle and defining a second polarization measurement, associated with a second angle. The method includes generating a first string of polarization measurements and a first string of angles; generating a second string of polarization measurements and a second string of angles; generating a first uncorrelated substring, formed by the polarization measurements of the first string associated with angles that are different from the corresponding angles of the second string of angles; generating a second uncorrelated substring, formed by the polarization measurements of the second string associated with angles that are different from the corresponding angles of the first string of angles; and determining an estimate of the noise on the basis of the first and the second uncorrelated substrings.

On a radar apparatus, a direction derivation part derives a peak angle related to an angle of a target based on reception signals received by a plurality of reception antennas. Then, a detection information derivation part derives, based on the peak angle, target data that are internal data about the target, and stores the derived target data into a memory. A reliability determination part determines a reliability of an object peak angle upon which the target data about the target was derived, the reliability of the object peak angle being determined based on a different peak angle derived concurrently with the object peak angle by the direction derivation part. Then, a data erasure part deletes, based on the reliability of the object peak angle determined by the reliability determination part, the target data relevant to the object peak angle from the memory to exclude the target data from further processing.

Search device for locating a transmitter, in particular an avalanche-victim search device (1), such that for scanning a search area the search device (1) is swiveled by a user through a range of search angles that covers the region to be searched, which independently determines the position of an avalanche victim or several such victims in a reliable and economical manner, with a magnetic-field sensor that sends to a signal-processing means sensor signals related to the earth's magnetic field that are then sent on as processed signals to the output unit, and to every search direction there is assigned a fixed search angle relative to the earth's magnetic field, so that at every time it is possible to associate the signal received from a transmitter with a fixed search angle.

This disclosure relates to measuring ultraviolet (UV) exposure. One example system includes an electronic sensor chip that includes a UV sensor that measures a UV intensity reading, an inertial measurement unit that acquires movement data of the UV sensor, and at least one processor. The system further includes a light pipe that guides light towards the UV sensor and a diffuser that has an angle-dependent transmission function and covers an end of the light pipe. Example operations can be performed by the processor include determining a solar incidence angle between a direction of the sun and a normal direction of the UV sensor, computing an estimation of a maximum UV intensity at normal incidence based on the UV intensity reading, the solar incidence angle, and the angle-dependent transmission function of the diffuser, and outputting a UV index based on the estimation of the maximum UV intensity at normal incidence.

The invention discloses an interference optimization method and system, and relates to the technical field of mobile communication. The method specifically comprises the steps: firstly carrying out the positioning of a TSC (training sequence code) of an interference community, and carrying out the multi-dimensional calculation of an interference coefficient of the TSC after positioning, and then determining the interference community according to the interference coefficient. The method gives full consideration to the distance correlation, angle correlation, BCCH (broadcast control channel) frequency-scanning CC testing point correlation and BCCH frequency-scanning time gap receiving power correlation between the interference channel and a service channel in a process of multi-dimensional calculation of the interference coefficient. Therefore, in the embodiment of the invention, the method and system give full consideration to BCCH and TCH carriers and co-channel interference among different communities in a process of interference positioning, improve the degree of fine analysis of a wireless network, greatly improve the accuracy of interference positioning, and enable the obtained interference optimization to be more reasonable and accurate.