Showing papers by "Mitsubishi Electric published in 2013"

Apparatus for concentrating and diluting specific gas and method for concentrating and diluting specific gas

Abstract: One ozone concentrating chamber is provided therein with a part of a cooling temperature range where ozone can be selectively condensed or an oxygen gas can be selectively removed by transmission from an ozonized oxygen gas, and a part of a temperature range where condensed ozone can be vaporized, and condensed ozone is vaporized by moving condensed ozone with flow of a fluid or by gravitation to the part where condensed ozone can be vaporized, whereby the ozonized oxygen gas can be increased in concentration. Such a constitution is provided that a particle material 13 for condensation and vaporization filled in the ozone concentrating chambers 11 and 12 has a spherical shape of a special shape with multifaceted planes on side surfaces, or an oxygen transmission membrane 130 capable of selectively transmitting an oxygen gas in an ozone gas is provided.

Numerical control device

Abstract: Eine numerische Steuerungsvorrichtung (1) umfasst: eine Steuerungseinheit (102), welche die Bewegung von Achsen einer Werkzeugmaschine (3) mittels eines Positionsbefehls (103) entsprechend einem Bearbeitungsprogramm (101) steuert und Positionsinformationen bezuglich der Achsen erfasst; eine Uberwachungspunktbestimmungseinheit (111), die in Abhangigkeit von einer Art einer Anweisung oder einer Anweisung in Bezug auf eine im Bearbeitungsprogramm beschriebene Verfahrbewegung einen Uberwachungspunkt; den es zu uberwachen gilt, und eine Uberwachungsachse als die zu uberwachende Achse im Bearbeitungsprogramm festlegt; und eine Uberwachungseinheit (113), die anhand der Positionsinformationen (121) am Uberwachungspunkt der Uberwachungsachse uberwacht, ob ein Fehler oder eine Abweichung einen vorbestimmten Grenzwert uberschreitet, wobei die Steuerungseinheit die Bewegung der Achsen anhand des Uberwachungsergebnisses (125) der Uberwachungseinheit steuert, und die numerische Steuerungsvorrichtung ferner eine Analyseeinheit (115) umfasst, die basierend auf den Uberwachungsergebnissen darstellt, ob die Ursache des Fehlers oder der Abweichung ein mechanischer Faktor oder ein steuerungstechnischer Faktor ist, und das Analyseergebnis des Faktors an eine Ausgabeeinheit (116) ausgibt.

Image processing device and image processing method

Abstract: The invention relates to an image processing device and an image processing method an image based on retrieved data can be displayed before authentication of the retrieved data is completed While the authentication unit(104) is performing authentication, the resource access supervision section(105) disallows access to the local resource and sends the display image generating unit(108) an authentication-in-progress notification Upon receiving this notification, the display image generating unit(108) generates a notification image indicating that authentication is being performed, and generates the display image by combining the second partial images and the notification image the invention enables an image based on retrieved data to be displayed before authentication of the retrieved data is completed, without compromising the security of hardware resources When authentication succeeds, the display image generating unit may access the local resource(107) and generate the display image by combining the first and second partial images

Resonant type transmission power supply device and resonant type transmission power supply system

Abstract: A resonant type transmission power supply device includes a pulse input circuit that inputs a pulse voltage to a transmission antenna at set intervals, a variable resonance frequency circuit that causes the resonance frequency of the transmission antenna to be variable and performs sweep detection of the resonance frequency when a pulse voltage is inputted, a frequency characteristic detecting circuit that detects a frequency characteristic of the transmission antenna when the sweep detection is performed, a foreign object detecting circuit that detects the presence or absence of a foreign object in an electromagnetic field generated from the transmission antenna on the basis of a detection result acquired by the frequency characteristic detecting circuit, and a power control circuit that reduces or stops the supply of electric power to the transmission antenna when a foreign object is detected.

Decentralized Attribute-Based Signatures

Abstract: We present the first decentralized multi-authority attribute-based signature (DMA-ABS) scheme, in which no central authority and no trusted setup are required. The proposed DMA-ABS scheme for a large class of (non-monotone) predicates is fully secure (adaptive-predicate unforgeable and perfectly private) under a standard assumption, the decisional linear (DLIN) assumption, in the random oracle model. Our DMA-ABS scheme is comparably as efficient as the most efficient ABS scheme. As a by-product, this paper also presents an adaptively secure DMA functional encryption (DMA-FE) scheme under the DLIN assumption.

Video encoding device, video decoding device, video encoding method, and video decoding method

Abstract: There is a problem that when performing field encoding on an interlaced signal, the space resolution in a vertical direction is reduced to one half and the correlation between pixels degrades, and, as a result, the prediction efficiency of intra prediction and the coding efficiency of orthogonal transformation coefficients degrade. In accordance with the present invention, there is provided an intra predictor that when a flag based on information showing whether or not field encoding is performed is valid, in case of a horizontal prediction, does not perform a filtering process on a prediction block at a time of performing an intra prediction process according to the horizontal prediction, but in case of a mean value prediction, performs a filtering process only on the left edge of the prediction block at a time of performing an intra prediction process according to the mean value prediction.

Indoor unit of air-conditioning apparatus

Abstract: When user face information and user air-conditioning information are stored in advance via a portable information terminal and a face of a user is located within a face recognition range of an indoor imaging device, an indoor unit of an air-conditioning apparatus recognizes the face In addition, when it is determined that the face of the user corresponds to the face of a first user represented by first user information stored in advance, the indoor unit of the air-conditioning apparatus blows conditioned air that satisfies a first user air-conditioning environment represented by first user air-conditioning information set for the first user toward the first user

Voice recognition device and display method

Abstract: Because a voice recognition device in accordance with the present invention can adjust the output of a voice recognition result according to the priority of a display of the recognition result with respect to display information other than the voice recognition result at all times while recognizing an uttered voice, the voice recognition device prevents the acquisition of other information important for the user from being blocked due to the display of the recognition result, and improves the user's convenience.

Wavelength selective wideband uncooled infrared sensor using a two-dimensional plasmonic absorber

Abstract: A wavelength selective wideband uncooled infrared (IR) sensor that detects middle-wavelength and long-wavelength IR (MWIR and LWIR) regions has been developed using a two-dimensional plasmonic absorber (2-D PLA). The 2-D PLA has a Au-based 2-D periodic dimple-array structure, where photons can be manipulated using a spoof surface plasmon. Numerical investigations demonstrate that the absorption wavelength can be designed according to the surface period of dimples over a wide wavelength range (MWIR and LWIR regions). A microelectromechanical system-based uncooled IR sensor with a 2-D PLA was fabricated using complementary metal oxide semiconductor and micromachining techniques. Measurement of the spectral responsivity shows that the selective enhancement of responsivity is achieved over both MWIR and LWIR regions, where the wavelength of the responsivity peak coincides with the dimple period of the 2-D PLA. The results provide direct evidence that a wideband wavelength selective IR sensor can be realized simply by design of the 2-D PLA surface structure without the need for vertical control in terms of gap or thickness. A pixel array where each pixel has a different detection wavelength could be developed for multicolor IR imaging.

Smart meter data analysis for power theft detection

Abstract: We propose a method for power theft detection based on predictive models for technical losses in electrical distribution networks estimated entirely from data collected by smart meters in smart grids. Although the data sampling rate of smart meters is not sufficiently high to detect power theft with complete certainty, detection is still possible in a statistical decision theory sense, based on statistical models estimated from collected data sets. Even without detailed knowledge of the exact topology of the distribution network, it is possible to estimate a statistical model of the technical losses that allows indirect estimation of the non-technical losses (power theft) with high accuracy.

Mobile station, base station, communication system, amount-of-data information transmission method, transmission-control-information notification method, and wireless communication method

Abstract: A mobile station includes an amount-of-data information determining means for monitoring data which are stored on a communication-service-by-communication-service basis or on a transmit-channel-by-transmit-channel so as to determine communication-service-by-communication-service or transmit-channel-by-transmit-channel amount-of-data information. The mobile station transmits the communication-service-by-communication-service or transmit-channel-by-transmit-channel amount-of-data information determined by the amount-of-data information determining means to a base station.

Wireless communication apparatus and wireless communication method

Abstract: A wireless communication apparatus includes a BT-apparatus unit configured to perform wireless communication using frequency hopping, a WLAN-apparatus unit configured to perform wireless communication in a system different from a system of the BT-apparatus unit using a band including at least a part of a band used by the BT-apparatus unit and using a WLAN-antenna whose directionality is controllable, and an information managing unit configured to, upon detecting simultaneous communication of the BT-apparatus unit and the WLAN-apparatus unit, instruct the WLAN-apparatus unit to perform communication while adjusting a beam direction of the WLAN-antenna and instruct the BT-apparatus unit to measure a communication quality, determine a directionality setting value of the WLAN-antenna based on the communication quality measurement by the BT-apparatus unit, and instruct the WLAN-apparatus unit to perform communication using the determined directionality setting value.

On measurable side-channel leaks inside ASIC design primitives

Abstract: Leaks inside semi-custom ASIC (Application Specific Integrated Circuit) design primitives are rigorously investigated. The study is conducted by measuring a dedicated TEG (Test Element Group) chip with a small magnetic-field probe on the chip surface. Measurement targets are standard cells and a memory macro cell. Leaks inside the primitives are focused as many of conventional countermeasures place measurability boundaries on these primitives. Firstly, it is shown that current-path leak: a leak based on input-dependent active current path within a standard cell [1] is measurable. Major gate-level countermeasures (RSL, MDPL, and WDDL) become vulnerable if the current-path leak is considered. Secondly, it is shown that internal-gate leak: a leak based on non-linear sub-circuit within a XOR cell is measurable. It can be exploited to bias the distribution of the random mask. Thirdly, it is shown that geometric leak: a leak based on geometric layout of the memory matrix structure is measurable. It is a leak correlated to integer representation of the memory address. We also show that a ROM-based countermeasure (Dual-rail RSL memory [10]) becomes vulnerable with the geometric leak. A general transistor-level design method to counteract the current-path and internal-gate leaks is also shown.

Rotating electrical machine

Abstract: In an alternator for a vehicle according to the present invention, each of rear-side ribs defining each of rear-side exhaust holes includes a projecting portion that has a three-sided sectional shape obtained by cutting along a vertical direction relative to a center axis line of a shaft at least in a portion away from respective end portions of stator coils, and has an apex oriented toward a cooling fan. The apex is oriented in a direction opposite to a rotating direction of the cooling fan. Therefore, the amount of air generated by the cooling fan is increased to improve cooling performance for a stator.

Touch screen, touch panel, display device and electronic device

Abstract: Detection column wires and detection row wires are configured of thin wires made of a conductive material having light reflectivity, such as a metal or alloy including silver and aluminum. A predetermined plural number of detection column wires are electrically connected to form a plurality of column-direction bundle wires. A predetermined plural number of detection row wires are electrically connected to form a plurality of row-direction bundle wires. A reflected-light distribution pattern is further provided. When viewed in a direction vertical to the surface of the touch screen, the reflected-light distribution pattern includes a curved portion, and the normal lines of the curved portion head for all directions.

Permanent magnet type motor

Abstract: A permanent magnet type motor with reduced torque ripple, wherein torque ripples due to the sixth-order and twelfth-order electrical angle components are both reduced with a small skew angle, is provided. This permanent magnet type motor is configured so as to be driven with the phases of currents that flow in two sets of three-phase armature windings (26-1, 2) being offset from each other by an electrical angle of 20° to 40°, a rotor (11) is composed of m-stages of rotor components that are arranged in an axial direction, the m-stages of rotor components are respectively constructed into a skewed stage structure, and the skew angle (ϴ) (unit: degree) between adjoining units satisfies 26/m≤ϴ≤43.2/m (m is an integer equal to or greater than 2) in terms of electrical angle.

Refurbishing of Small-Angle X-ray Scattering Beamline, BL-6A at the Photon Factory

Abstract: BL-6A at the Photon Factory is new small-angle X-ray scattering beamline. The light source makes use of a bending magnet, and the available wavelength, monochromatized by a Johann type crystal monochromator, is fixed to 1.5 A. Various kinds of detectors for SAXS and WAXS experiments are installed in BL-6A, and a SAXS/WAXS simultaneous measurement system was also constructed. This beamline is maintained to measure various samples, such as protein solutions, fibers, liquid crystals as well as solid state materials.

Air-conditioning system

Abstract: An air conditioning system that includes desiccant compartments for holding a desiccant; a heat exchanger, a blower and a vessel. The heat exchanger can be filled with a heat transfer medium, while the blower blows ambient air by the heat exchanger such that the blown air is cooled and the heat exchanger is warmed such that thermal energy increases and is transferred from the air to the heat transfer medium causing the heat transfer medium to turn into vapor. The vapor is then diffused to one of the desiccant compartments such that the vapor is adsorbed onto the desiccant creating a mixture. Then an energy source is applied to the mixture such that the vapor and desiccant are separated. The separated vapor is transported to the vessel where it is condensed and then sent back to the heat exchanger, such that the system is able to be continuously operating.

Air conditioner for vehicle

Abstract: [Problem] To provide an air conditioner for a vehicle, the air conditioner being configured so that the main frame of the air conditioner can be assembled without increasing the number of parts and man-hours. [Solution] The present invention is provided with: a casing partitioned into an indoor chamber and an outdoor chamber by a partition plate (12) and having a cover at the upper part thereof; and a refrigeration cycle device provided so as to straddle both the indoor chamber and the outdoor chamber of the casing. Side walls (14) which form the side surfaces of both the indoor chamber and the outdoor chamber of the casing are formed integrally by extrusion of an aluminum material.

Communication method, optical communication system, station-side optical-line terminal apparatus, and user-side optical-line terminal apparatus

Abstract: An ONU includes the optical transceiver capable of an operation in a power-saving mode in which power consumption is reduced by stopping transmission while continuing reception, and a control device that controls to tentatively validate transmission of the optical transceiver and outputs a response signal when a control signal is received from an OLT during an operation in a power-saving state. Moreover, the OLT includes the control device that allocates a transmission bandwidth to the ONU even while the optical transceiver of the ONU operates in a power-saving mode and stops transmission and determines whether a communication failure occurs or the ONU is in operation in a power-saving mode based on the response signal received by a transceiver of the OLT.

Power conversion apparatus

Abstract: A filter capacitor accumulating direct-current power and a semiconductor device module performing a switching operation that converts the direct-current power accumulated in the filter capacitor to alternating-current power are electrically connected with each other through a laminated bus bar. The laminated bus bar has a first bus bar and a second bus bar in which a plurality of connection conductors are laminated through an insulator. The second bus bar is provided with heat radiating portions that are formed by exposing a part of the conductor in each flat plate surface.

Light source apparatus

Abstract: A light source apparatus includes an outer casing. A light source member and a light source module having a cooling body which cools the light source member are disposed in the outer casing. A wind tunnel which surrounds a heat pipe unit as the cooling body of the light source module is provided in the outer casing. The wind tunnel includes a wind passage which allows cooling wind to pass through the heat pipe unit. An intake-opening is formed in a surface of the outer casing, and cooling wind is taken into the outer casing from outside thereof through the intake-opening. One end of the wind passage of the wind tunnel is connected to the intake-opening.

In-vehicle electronic control unit and power feeding control method of the same

Abstract: When a power supply switch is fed with power from a DC power supply and closed, a power supply unit starts power feeding to an opening and closing command generation unit and continues the power feeding by a self-hold command signal from the opening and closing command generation unit. A reverse connection protective element is a field-effect transistor connected in series to the power supply switch and driven to conduct current in an energization direction of an internal parasitic diode when the power supply is connected in proper polarity. Even when a supply fault abnormality is occurring due to fault contact between a positive-side wire of an in-vehicle electrical load connected to the reverse connection protective element and a positive-electrode wire of the DC power supply, the self-hold command signal is cancelled by determining that the power supply switch is opened while the reverse connection protective element is opened.

Rotary electric machine

Abstract: An object of the present invention is to provide a rotary electric machine that can improve the reliability of a connection terminal by preventing brazing material applied to butting portions of the connection terminal from flowing out. The rotary electric machine according to the present invention has, on at least one of the inner and outer circumferences of a hole portion 22 of a connection terminal 20 , a groove portion 22 a, 22 b, 22 c, 22 d , or 22 e that can prevent brazing material 24 from flowing out from between butting portions 23 , thereby solving a problem that a crack occurs on the connection terminal upon fusing of the connection terminal and a lead conductive wire.

Phase locking in a Nd:YVO_4 waveguide laser array using Talbot cavity

Abstract: We demonstrated phase-locking in a laser-diode-array-pumped Nd:YVO4 laser array (15 emitters) using a Talbot cavity. The Nd:YVO4 slab crystal was coated by dielectric material for claddings and formed a planar waveguide for the vertical mode. To stabilize the horizontal array mode, periodical thermal lenses were generated by controlling the heat flow. The phase-locked waveguide array generated 1.65-W output power, while 2.02 W was available in a standard cavity. Two-peak supermode was demonstrated with the Talbot cavity and was converted to a single peak with a spatial light modulator. We also experimentally and numerically analyzed the characteristics of Talbot phase-locking.

System stabilization device

Abstract: A technique with which a change in power frequency can be suppressed. A power system stabilizer issues a control command to a first storage battery among a plurality of first power generators and the first storage battery that are connected to an isolated island system via a first tie-line. The power system stabilizer includes a parameter determination unit and a control block unit. The parameter determination unit obtains, on the basis of operation information, a rate-of-change limit value that indicates a limit to be imposed on a total value of changes in the overall output of first power generators in operation. The control block unit generates a command value to be given to the first storage battery on the basis of an interconnection point power flow value measured on the first tie-line and the rate-of-change limit value obtained by the parameter determination unit.

Refrigerant distributor and heat pump device using refrigerant distributor

Abstract: A refrigerant distribution device 10 is provided for distributing refrigerant to a plurality of heat transfer tubes 3 that constitute a heat exchanger 1. The refrigerant distribution device 10 includes a first distribution device 20 dividing refrigerant into a plurality of portions, and a plurality of two-way branch pipes 30 each dividing refrigerant divided by the first distribution device 20 into two portions to flow into two of the plurality of heat transfer tubes 3.

Remote control device

Abstract: PROBLEM TO BE SOLVED: To obtain a remote control device which appropriately displays operative condition in an easy-to-see manner, is constituted of a few keys, and can be easily operated and set.SOLUTION: A remote control device 1 comprises: a liquid crystal display section 2 having a display panel for performing display on the basis of a display signal; a function key section 4 transmitting an operation signal when being pressed down; and control processing means 100 transmitting the display signal which causes operation contents matched to operative condition of an apparatus due to a function key to be displayed on the display panel in the vicinity of function keys to the liquid crystal display section 2. When the operation contents due to function keys adjacent to each other relate to the same type of processing, the control processing means 100 matches displays of the operation contents to lateral dimensions of the function keys adjacent to each other and causes the displays of the operation contents to be integrally displayed on the liquid crystal display section 2.