摘要:
In order to provide a noise removal method for removing noise signals mixed into an image signal without deteriorating picture quality of the overall image, such zigzag noise signals that the difference between the output levels of two pixels adjacent to each other along a noise generation direction alternately takes positive and negative vales at least three times are detected from noise signals mixed into an image signal. Then, a specific pixel is noted among a plurality of pixels corresponding to the noise signals, for calculating a mean value of the output levels of the noise signals with reference to the specific pixel and correcting the output level of a noise signal corresponding to the said specific pixel with the said mean value.
摘要:
A porous preform includes at least one kind of preform-forming materials of ceramic particles, ceramic fibers and ceramic whiskers, and a film of a binder formed on a surface of said at least one kind of the preform-forming materials and comprising magnesium or a magnesium alloy. The preform is used for producing a metal matrix composite material.
摘要:
At the top of an upside-down box as a retainer 20 a recessed portion 24 is provided, with which an outer ring 23 which is coupled spherically with the curved surface of the cubic body 22 is coupled, the holding plate 26 fixes the position of the outer ring 23, the hollow shaft 32 is inserted in the cable insertion hole 29 provided in the cubic body 22, the male screw portion of the tip end of the hollow shaft 32 is screwed in the female screw portion 36 to be unified while clamping the cubic body with the guide member 31 and the hollow shaft 32, the guide member 31 is provided with a horn like widened guiding hole 30, the cable 40 drawn out from the hollow shaft 32 is bent along the inside of the guiding hole 30 of the guide member 31, and the cable 40 is taken out through the outlet 41 provided on the side wall of the retainer 20, thereby the guide member 31, the cubic body 22 and the hollow shaft 32 follow the movement of the cable 40.
摘要:
A copper alloy having an improved corrosion resistance in an alcohol-containing medium, which consists essentially of 0.5 to 8 weight percent tin and/or nickel alone or in combination, 0.02 to 0.15 weight percent zirconium, and remainder weight percent copper. The zirconium is dispersed in the copper alloy as precipitates. The copper alloy is suitable for a commutator material used in a DC motor having an improved abrasive resistance.
摘要:
A photographed image recording and reproducing system includes a camera portion and a recording and reproducing portion. The camera portion has an image pick-up device for picking up an object image and producing an electrical image signal corresponding to the object image, a signal processing device for processing the electrical image signal into an analog image data signal, and an output device for outputting the analog image data signal. The recording and reproducing portion has a receiver device for receiving the analog image data signal, a conversion device for converting the analog image data signal to a digital image data signal, a memory device for storing the digital image data signal, a recording device for recording the stored digital image data signal on a record medium, and a reproducing device for reproducing the object image based on the recorded digital image data signal.
摘要:
A magnetostriction type torque sensor has a magnetostrictive film formed on an outer peripheral surface of a rotary shaft, a coil having a coil centerline extending in a radial direction of the rotary shaft, and a signal processor responsive to coil impedance. Since the coil includes a coil centerline extending in a radial direction of the rotary shaft, magnetic fluxes are formed mainly in a radial direction of the rotary shaft. Accordingly, the magnetic fluxes intruding deep into the rotary shaft are decreased, and the rate of the magnetic fluxes passing through the magnetostrictive film is increased. As a result, the magnetostriction type torque sensor comes to have high sensitivity even when the rotary shaft has high magnetic permeability or high electric conductivity.
摘要:
A method for manufacturing a semiconductor device, comprising the steps of selectively oxidizing a surface of a semiconductor layer of a first conductivity type so as to form a field oxide film, selectively forming an impurity region of a second conductivity type in an element region isolated by the field oxide film, forming a polycrystalline silicon pattern containing an impurity of the first conductivity type on a surface including at least part of the impurity region and the field oxide film, and diffusing the impurity of the first conductivity type from the polycrystalline silicon pattern into the impurity region so as to form another impurity region of the first conductivity type contiguous with the field oxide film, wherein a thickness t of the field oxide film and a concentration n of the impurity of the first conductivity type in the polycrystalline silicon pattern have the following relation:t (.mu.m).ltoreq.-0.117.times.10.sup.-20 (.mu.m.multidot.cm.sup.3).multidot.n(cm.sup.-3)+1.42 (.mu.m)for 1.times.10.sup.19 .ltoreq.n(cm.sup.-3).ltoreq.1.times.10.sup.21.The method eliminates short-circuiting and flow of leakage current between the collector and emitter, and improves manufacturing yield.