摘要:
36.degree. -rotated Y-cut X-propagation lithium niobate substrate (LiNbO.sub.3) was used as a piezoelectric substrate to compose a surface acoustic wave filter and is connected with a dielectric filter in series. The dielectric filter having a sign of the frequency temperature characteristic which is opposite to that of the surface acoustic wave filter was used. Accordingly, a high frequency filter, comprising a surface acoustic filter and a dielectric filter connected in series, which can secure sufficient attenuation without an increase in the insertion loss within the band can be provided.
摘要:
A layered body of a SAW filter includes a surface dielectric layer having a surface layer electrode pattern formed thereon, and a first dielectric layer having a pair of electrode patterns and a first ground electrode pattern formed thereon. A pair of balanced output terminals of SAW filters of unbalanced input-balanced output are connected respectively to the pair of electrode patterns via the surface layer electrode pattern, and a part of the first ground electrode pattern is disposed between the pair of the electrode patterns.
摘要:
Provided is an image quality evaluation system for evaluating quality of an image. The image quality evaluation system includes bit extraction means and image quality evaluation means. For predetermined data expressing an image frame of a first image, the bit extraction means extracts a predetermined number of bits which is smaller than the number of bits required for expressing one data piece. By using a value expressed by the bit string extracted by the bit extraction means and a value of data equivalent to the data to be extracted from the bit string in a second image, the image quality evaluation means estimates a difference between the first image and the second image and evaluates the image quality of the first to image or the second image.
摘要:
The invention provides a pigment-containing heat-curable composition including a pigment dispersion solution obtained by dispersing a composition containing a heat-curable resin, a solvent, and a pigment, wherein the concentration of the pigment is 50% or more and less than 100% with respect to the total solid contents.
摘要:
The present invention is a power supply device for electric power tool that supplies an electric power to an electric power tool. The power supply device includes: an adapter configured to be electrically connected to the electric power tool; and a fuel cell configured to generate an electric power to be supplied to the electric power tool through the adapter, by causing an oxidation reaction between a fuel and an oxidant.
摘要:
Nickel, Ni, of 5 to 10 mass %, silicon, Si, of 0.5 to 5 mass %, manganese, Mn, of 0.01 to 1 mass %, carbon, C, of 0.2 to 2 mass % and a remaining part consisting of iron, Fe, and incidental impurities are employed, and further chromium, Cr, of 1 to 10 mass % is added to obtain a martensitic cast steel material for which a martensitic transformation finish temperature (Mf point) is below freezing. Further, a cast steel material that contains vanadium V of 0.1 to 5 mass % in addition to the above elements of the material is also obtained. For these cast steel materials, since martensitic transformation occurs merely by performing a sub-zero treatment, the tempering process can be comparatively easily performed, and machining in a desired shape is easily performed.
摘要:
In a noise reduction circuit, a transistor circuit amplifies an input signal and outputs an output signal with supply of power from the DC voltage source via a power supply line circuit. The canceling signal adding circuit acquires and attenuates a part of the output signal, to generate a canceling signal having a phase substantially opposite to a phase of a leakage signal leaking to the power supply line circuit, and having an amplitude substantially the same as an amplitude of the leakage signal.
摘要:
Disclosed is a picture quality evaluation system that comprises a difference calculation part, which calculates the difference between data that represent a feature value of a pixel set comprising at least 1 pixel that constitutes a first image and data that represent a feature value of a pixel set comprising at least 1 pixel that constitutes a second image, a main area of focus calculation part, which uses at least the first image or the second image to determine the main area of focus of an image that has a specific feature and then calculates the main area of focus, which indicates the extent of the main area of focus, a difference weighting part, which weights the difference in the feature value in the pixel set contained in the main area of focus, based on the main area of focus, and a picture quality value calculation part, which calculates the picture quality value of the first image, based on the weighted difference from the difference weighting part.
摘要:
To estimate an image quality deterioration level at a high accuracy. An image quality deterioration level is estimated by judging whether image quality deterioration is suppressed or not by error concealment processing when decoding is not correctly performed, based on information obtained in decoding processing. When it is judged that error concealment is effectively operated, it is estimated that deterioration of an image quality even in an image region not correctly decoded is small. When it is estimated that error concealment is not effectively operated, it is estimated that image deterioration is heavy.
摘要:
A printed wiring board for mounting a semiconductor, which printed wiring board has a taper-shaped through hole connecting an upper surface circuit and a lower surface circuit, and/or an internal layer circuit,the taper-shaped through hole being obtained by plating an inner wall surface and a small-diameter side end of a taper-shaped penetration hole with a metal to plate the inner wall surface and seal the small-diameter side end,wherein a ball pad or a bump pad is formed at least a small-diameter side end of the taper-shaped through hole.