Abstract: The present invention provides a multilayer wiring board in which warpage during reflow soldering can be reduced even if there is no sufficient space for disposing a dummy pattern or if a dummy pattern cannot be disposed. A difference between the ratios of copper remaining in wiring layers causes a difference between the amounts of thermal expansion of the wiring layers. The fiber bundle content of at least one resin base material layer is made different from that of the other resin base material layers, to cause a difference between the amounts of thermal expansion of the resin base material layers. This difference between the amounts of thermal expansion of the resin base material layers is used to cancel the difference between the amounts of thermal expansion of the wiring layers. Thus, warpage of the board during reflow soldering is reduced.

Abstract: A method for analyzing a component mounting board comprising a step (A) for forming a multilayer substrate shell model of a multilayer wiring board, a step (B) for forming a multilayer component shell model divided by element division lines based on the bonding position of a component to the surface of the multilayer wiring board, step (C) for redividing the mounting position of the component in the multilayer substrate shell model, and step (D) for forming an analysis model by bonding the neutral plane of the substrate and the neutral plane of the component through one of a beam element and a solid element, i.e. a bonding element equivalent to mounting conditions of the component, wherein precision of analysis is enhanced while reducing computation cost by performing calculation while imparting boundary conditions to the analysis model.

Abstract: A series coupling synchronous axial gap type motor where rotors and stators are alternately stacked with required air gaps in the axial direction of a rotary shaft as a main shaft, is provided. The rotors are fixed to the rotary shaft, and the stators are disposed such that they cannot be interlocked with the rotary shaft. A plurality of rotary field bodies are attached to each of the rotor around the axis, and a plurality of armature coils are made to face the rotary field bodies with an air gap therefrom and are attached to each of the stators around the axis such that their magnetic-flux directions are directed toward the axial direction. The armature coils have an empty core, or a core member composed of a magnetic body attached thereto.

Abstract: An inductor-type synchronous machine includes field stators having field elements by which an N-pole and an S-pole are concentrically formed, rotors to which a rotating shaft is fixed and has N-pole inductors disposed so as to face the N-pole of the field elements and S-pole inductors disposed so as to face the S-pole of the field elements, and an armature stator having armature coils disposed so as to face the N-pole inductors and the S-pole inductors.

Abstract: An image processing system includes a decoder configured to decode an encoded image and an encoder configured to encode the image decoded by the decoder. The decoder includes a decoder adapted to decode the encoded image, and a detector adapted to detect, on the basis of the image, a fade period included in the image and supply a fade information signal indicating a detection result to the encoder. The encoder includes an acquisition unit adapted to acquire the fade information signal, and a changing unit adapted to change a process performed in the encoding of the image in accordance with the fade information signal.

Abstract: Stators 12 and 13 are disposed with required air gaps in an axial direction of a rotor 11 so as to face each other, a plurality of field bodies 15 or permanent magnets 33 are disposed in the rotor 11, and a plurality of armature coils 17 and 19 are disposed in the stators 12 and 13 around the axis. At least one of the field bodies 15 or permanent magnets 33 and the armature coils 17 and 19 are formed from a superconductive material such that their magnetic flux directions are directed to the axial direction.

Abstract: In a cooling structure of a superconducting motor in which a superconducting coil is attached to a rotor, grooves are concavely provided on an outer surface of a rotating shaft that penetrates and is fixed to the rotor. A refrigerant is circulated through a refrigerant circulation pipe disposed inside the grooves to that the superconducting coil is cooled by the refrigerant.

Abstract: A encoding apparatus which encodes picture data obtained by decoding the encoded data includes a decision means for deciding whether a motion vector is generated or not in the encoding of the picture data based on a motion vector of the encoded data obtained by decoding, a motion vector generating means for generating a motion vector based on the picture data provided that the decision means decides to generate the motion vector and a motion prediction/compensation means for generating prediction picture data using the motion vector generated by the motion vector generating means when the decision means decides to calculate the motion vector, and generating the prediction picture data using the motion vector obtained by decoding when the decision means decides not to calculate the motion vector.

Abstract: The present invention provides a blade-type tensioner system for a chain that can easily improve spring properties. A blade-type tensioner includes a blade shoe and a blade spring positioned on the back side of chain sliding surface of the blade shoe so as to impart tension to a chain through the blade shoe. The blade shoe is pivotably supported around a shoulder bolt inserted into a proximal end portion of the blade shoe, and a distal end portion of the blade shoe is slidably supported on a supporting face provided in the engine. The distal end portion of the blade shoe contacts a flat, first supporting face at a point. When tension in the chain is increased, the distal end portion contacts a concave, second supporting face at a point which is continuous with the first supporting face.

Abstract: An electrode for a crusher and a crusher capable of increasing energy utilized for crushing are obtained. The electrode 1 for a crusher comprises a central conductor (12, 17) extending along a central axis and having an outer peripheral surface, an insulating member (13, 18) arranged on the outer peripheral surface of the central conductor (12, 17) and a peripheral conductor (15) arranged to enclose the insulating member (13, 18). The peripheral conductor (15) includes a first conductor (14a) and a second conductor (14b) arranged at a space from the first conductor (14a) in the extensional direction of the central axis.

Abstract: The reverse direction reproduction of encoded data comprised of picture data compressed in accordance with the MPEG system is to be realized at a higher speed. To this end, plural frame memories are used for reverse direction reproduction. The respective pictures are sequentially decoded and the decoded pictures are sequentially held in the frame memories. If there is no vacant memory, the frame memories are sequentially overwritten beginning from the frame memory which stores the picture decoded first. If the decoding progresses up to the picture to be reproduced, and the decoding of the picture to be reproduced comes to a close, the decoding is transiently halted and the picture to be reproduced is read out from the frame memory and displayed. If the picture to be reproduced is displayed, the frame memory which has held the displayed picture is evacuated. The decoding is re-initiated for decoding the picture consecutive to the picture the data of which are as yet held in the frame memory.

Abstract: The present invention enables to obtain a video representation with a smooth motion during a fast reproduction of a video signal which has been prediction coded in the time axis direction. A video signal reproduction apparatus 100 includes a controller 11 having a detection block 11a, a decision block 11b, and mode switching block 11c. According to an information from a demultiplexer 5 and a decode information from a video decoder 6, the controller 11 detects a reproduction speed in the detection block 11a. The detected reproduction speed is supplied to the decision block 11b where it is compared to a predetermined threshold value so as to select a first fast reproduction mode requiring reproduction of all the reference pictures of the video signal which has been prediction coded or a second fast reproduction mode requiring reproduction of some the reference pictures. According to this decision result, the mode switching block 11c switches between the first and the second rast reproduction modes.

Abstract: An electrode for a crusher and a crusher capable of increasing energy utilized for crushing are obtained. The electrode 1 for a crusher comprises a central conductor (12, 17) extending along a central axis and having an outer peripheral surface, an insulating member (13, 18) arranged on the outer peripheral surface of the central conductor (12, 17) and a peripheral conductor (15) arranged to enclose the insulating member (13, 18). The peripheral conductor (15) includes a first conductor (14a) and a second conductor (14b) arranged at a space from the first conductor (14a) in the extensional direction of the central axis.

Abstract: The present invention provides a blade-type tensioner system for a chain that can easily improve spring properties. A blade-type tensioner includes a blade shoe and a blade spring positioned on the back side of chain sliding surface of the blade shoe so as to impart tension to a chain through the blade shoe. The blade shoe is pivotably supported around a shoulder bolt inserted into a proximal end portion of the blade shoe, and a distal end portion of the blade shoe is slidably supported on a supporting face provided in the engine. Th distal end portion of the blade shoe contacts a flat, first supporting face at a point. When tension in the chain is increased, the distal end portion contacts a concave, second supporting face at a point which is continuous with the first supporting face.

Abstract: A superconducting cable includes a core material, conductor layers formed by means of helically winding superconducting wires around the core material, electrically insulating layers, and magnetic shielding layers formed by means of helically winding superconducting wires around each of the electrically shielding layers. The superconducting wire is wound at the shortest pitch on the outermost conductor layer and is wound at the longest pitch on the outermost magnetic shielding layer.

Abstract: The present invention provides a controller operation in such way that in the forward slow reproduction or the forward stepped reproduction mode, when reproducing a video signal from a bit stream of coded video signal in which each frame consists of a first field and a second field, if a currently reproduced picture is the bottom field, a reproduction position pointer is shifted to the next frame to be reproduced.

Abstract: A superconducting fault current limiter is provided which is capable of ensuring a sufficient impedance for restricting an excessive current flow caused by an accident and completely satisfying a canceling condition of a magnetic field during normal operation without using an iron core. The fault current limiter includes first superconducting coils and second superconducting coils including windings of superconducting lines. First superconducting coils are electrically connected in series with second superconducting coils. First superconducting coils and second superconducting coils generate magnetic fields in opposite directions by application of currents. The fault current limiter further includes a component selected from a group consisting of a resistor and an inductor, the component being electrically connected in parallel with second superconducting coils. First superconducting coils and second superconducting coils are alternately arranged in a ring form such that a coil axis is circular.

Abstract: A superconducting cable includes a core material, conductor layers formed by means of helically winding superconducting wires around the core material, electrically insulating layers, and magnetic shielding layers formed by means of helically winding superconducting wires around each of the electrically shielding layers. The superconducting wire is wound at the shortest pitch on the outermost conductor layer and is wound at the longest pitch on the outermost magnetic shielding layer.

Abstract: A coding method, decoding method, coding system, and decoding system for efficiently variable length coding and variable length decoding quantized data compared with existing ones. Input data is variable length coded by using a variable length coding table 23C or 23D selected among a plurality of variable length coding tables 23C and 23D prepared in accordance with a coding efficiency. Thereby, it is possible to further improve a variable length coding efficiency compared with a case for using only one variable length coding table. As a result, when generating information content equal to that generated by using only one variable length coding table, it is possible to process data quantized with smaller quantized size and further improve the quality of information transmitted as coded data.

Abstract: In the present invention, a partly duplexed conversion table is used as a conversion table for converting an M-bit based data string directly into an N-bit based code string without using margin bits. This conversion table is constituted by first and second sub-tables including plural code groups, respectively. The plural code groups include different codes for the same input data. The second sub-table is a table which is partly duplexed with the first sub-table and is produced by allocating different codes to data from first input data to second input data in the first sub-table. The first and second sub-tables are so designed that code sets of the duplexed portions take variants of digital sum variations which are opposite in sign. Codes are allocated to all the code groups in the duplexed portions of the first and second sub-tables with respect to input data sequentially from a code having a maximum absolute value of variant of the digital sum variation.