Abstract: An image transmitting apparatus includes input terminals, first frame buffers corresponding to the input terminals, a write controlling portion, a read clock generating portion, a read controlling portion, an image compressing portion, and an image transmitting portion. The image transmitting apparatus inputs data on digital frame images of one frame captured with video cameras and synchronous signals synchronized with the data on the digital frame images, respectively, within a predetermined period of time; processes the data including multiplexing and compressing the data; and outputs the data on the digital frame images encoded by the image compressing portion.

Abstract: A video coding apparatus carries out a compression coding of a video based on a result of predicting a motion vector predicted between frames of the video. A quantization parameter control unit comprised of the apparatus calculates a ratio of an accumulation value, in the small block, of a prediction error of a brightness component to an accumulation value, in the small block, of a prediction error of a color difference component at the time that a motion vector detection/compensation unit which carries out a motion compensation based on a prediction result of the motion vector for the small block designated in a frame of the above video as a prediction accuracy indicator of the foregoing motion vector, and carries out a control of a quantization unit executing a quantization of image information of the small block based on the prediction accuracy indicator.

Abstract: A video coding apparatus carries out a compression coding of a video based on a result of predicting a motion vector predicted between frames of the video. A quantization parameter control unit comprised of the apparatus calculates a ratio of an accumulation value, in the small block, of a prediction error of a brightness component to an accumulation value, in the small block, of a prediction error of a color difference component at the time that a motion vector detection/compensation unit which carries out a motion compensation based on a prediction result of the motion vector for the small block designated in a frame of the above video as a prediction accuracy indicator of the foregoing motion vector, and carries out a control of a quantization unit executing a quantization of image information of the small block based on the prediction accuracy indicator.

Abstract: A small-size thin-bodied 3-dimensional matrix switch using a micro mirror array, comprises a collimator array with a plurality of collimators coupled to optical fibers, a mirror array with a plurality of movable mirrors, in which each movable mirror has light from a first collimator of the collimator array optically coupled thereto, a first mirror which has the light from the mirror of the mirror array optically coupled thereto, a second mirror which has the light from the first mirror optically coupled thereto, and a second collimator of the collimator array, which has the light from the second mirror coupled thereto, wherein the light leaving the second mirror passes the first mirror and the mirror array and optically couples to the second collimator.

Abstract: A beam direction module which can be applied to an optical switch, comprising: a collimator support member; a first mirror substrate including first micro-mirrors, and first windows through which beams can pass; a first electrode substrate including first mirror driving electrodes, and second windows through which beams can pass; a first spacer; a second mirror substrate including second micro-mirrors, and third windows through which beams can pass; a second electrode substrate including second mirror driving electrodes, and fourth windows through which beams can pass; a second spacer; and an inter-mirror spacer, wherein the first electrode substrate, the first spacer, the first mirror substrate, the inter-mirror spacer, the second mirror substrate, the second spacer and the second electrode substrate are stacked successively on the collimator support member and fixed between caps and the collimator support member while pins protruding from the collimator support member are inserted into alignment through-hol

Abstract: An amine-functional copolymer improved in color and odor, and a method for efficiently producing the amine-functional copolymer in the form of a powder by efficiently hydrolyzing a vinyl alcohol/N-vinyl carboxamide, are provided. The amine-functional copolymer, of which a 10 wt % aqueous solution has a Gardner index of at most 3 as measured in accordance with ASTM D1544. Such a copolymer is obtainable by a method for producing an amine functional copolymer by hydrolyzing N-vinyl carboxamide copolymer in the presence of an acid or base catalyst, wherein the hydrolysis is carried out in an aqueous medium having a salt dissolved therein.

Abstract: An image transmitting apparatus includes input terminals, first frame buffers corresponding to the input terminals, a write controlling portion, a read clock generating portion, a read controlling portion, an image compressing portion, and an image transmitting portion. The image transmitting apparatus inputs data on digital frame images of one frame captured with video cameras and synchronous signals synchronized with the data on the digital frame images, respectively, within a predetermined period of time; processes the data including multiplexing and compressing the data; and outputs the data on the digital frame images encoded by the image compressing portion.

Abstract: In a three-dimensional multi-channel optical switch using biaxially movable mirrors, a mirror packing density is improved to support an increased number of channels. The three-dimensional optical switch comprises a fiber collimator array, and a first mirror array and a second mirror array disposed in close proximity to a beam emission surface of the fiber collimator array. The first mirror array has arranged thereon a plurality of first mirrors each having a single rotation axis and a plurality of first windows. The second mirror array has arranged thereon a plurality of second mirrors each having a single rotation axis orthogonal to the first rotation axis and a plurality of second windows. A beam emitted from a fiber collimator passes through the first window, reflects on a fixed mirror and a movable mirror in order, passes through the second window, and exits to the outside.

Abstract: An amine-functional copolymer improved in color and odor, and a method for efficiently producing the amine-functional copolymer in the form of a powder by efficiently hydrolyzing a vinyl alcohol/N-vinyl carboxamide, are provided. The amine-functional copolymer, of which a 10 wt % aqueous solution has a Gardner index of at most 3 as measured in accordance with ASTM D1544. Such a copolymer is obtainable by a method for producing an amine functional copolymer by hydrolyzing N-vinyl carboxamide copolymer in the presence of an acid or base catalyst, wherein the hydrolysis is carried out in an aqueous medium having a salt dissolved therein.

Abstract: A beam direction module which can be applied to an optical switch, comprising: a collimator support member; a first mirror substrate including first micro-mirrors, and first windows through which beams can pass; a first electrode substrate including first mirror driving electrodes, and second windows through which beams can pass; a first spacer; a second mirror substrate including second micro-mirrors, and third windows through which beams can pass; a second electrode substrate including second mirror driving electrodes, and fourth windows through which beams can pass; a second spacer; and an inter-mirror spacer, wherein the first electrode substrate, the first spacer, the first mirror substrate, the inter-mirror spacer, the second mirror substrate, the second spacer and the second electrode substrate are stacked successively on the collimator support member and fixed between caps and the collimator support member while pins protruding from the collimator support member are inserted into alignment through-hol

Abstract: A small-size thin-bodied 3-dimensional matrix switch using a micro mirror array, comprises a collimator array with a plurality of collimators coupled to optical fibers, a mirror array with a plurality of movable mirrors, in which each movable mirror has light from a first collimator of the collimator array optically coupled thereto, a first mirror which has the light from the mirror of the mirror array optically coupled thereto, a second mirror which has the light from the first mirror optically coupled thereto, and a second collimator of the collimator array, which has the light from the second mirror coupled thereto, wherein the light leaving the second mirror passes the first mirror and the mirror array and optically couples to the second collimator.

Abstract: In a three-dimensional multi-channel optical switch using biaxially movable mirrors, a mirror packing density is improved to support an increased number of channels. The three-dimensional optical switch comprises a fiber collimator array, and a first mirror array and a second mirror array disposed in close proximity to a beam emission surface of the fiber collimator array. The first mirror array has arranged thereon a plurality of first mirrors each having a single rotation axis and a plurality of first windows. The second mirror array has arranged thereon a plurality of second mirrors each having a single rotation axis orthogonal to the first rotation axis and a plurality of second windows. A beam emitted from a fiber collimator passes through the first window, reflects on a fixed mirror and a movable mirror in order, passes through the second window, and exits to the outside.

Abstract: In a wire saw, it is an object to reduce the variance in width of cut slices of a work as well as the degree of coarseness of the cut slices. A plurality of machining rollers 13 and 14 are arranged in parallel at prescribed intervals, and a large number of circular grooves 13a and 14a are formed on the outer periphery of each of the rollers. In an axial direction of the machining rollers 13 and 14, a plurality of supply reels 23, take-up reels 24 and wires 15A, 15B are arranged. The wires 15A, 15B supplied from the supply reels 23 are wound on the circular grooves 13a ad 14a of the plurality of machining rollers 13 and 14 so that they are travelled between the plurality of rollers 13 and 14, and taken up by the take-up reels 24.