Abstract: A diversity control method of selecting a plurality of antennas having directivities and disposed in different directions is disclosed. At least two antennas are selected from the plurality of antennas. First diversity control of comparing strengths of reception powers of the selected at least two antennas is performed. One antenna having a stronger reception power than others is selected. If the radio conditions of at least two antennas have deteriorated in the first diversity control, second diversity control of comparing radio conditions of at least two antennas is performed in a predetermined period and at least one of the antennas is changed to another new antenna based on a compared result.

Abstract: Disclosed are a catalyst support particle comprising alumina having dispersed therein ceria primary particles, wherein a prominent peak of alumina is not present in the vicinity of 2?=67° in the X-ray diffraction analysis; an exhaust gas purifying catalyst obtained by loading a noble metal on the support particle; and production processes of the support catalyst and the exhaust gas purifying catalyst.

Abstract: A driver includes a first memory including a plurality of memory cells and redundant memory cells. An address control circuit replaces a defective memory cell of the plurality of memory cells with one of the redundant memory cells based on a defect address data indicating an address of the defective memory cell. A driving circuit displays on a display panel, a display data stored in the first memory based on a display quality specifying data specifying display quality of the display panel. The display quality specifying data and the defect address data are stored in a second memory.

Abstract: An alerting illumination device, which includes a detecting component, a danger degree estimating component, a danger assuming component, an illuminating component and a controlling component, is provided. The danger degree estimating component estimates a degree of danger, with respect to a subject vehicle, of the person detected by the detecting component. The danger assuming component, on the basis of the estimated degree of danger, assumes whether or not the person detected by the detecting component is a danger with respect to the subject vehicle. The illuminating component illuminates light. The controlling component, in a case in which the danger assuming component assumes that the person is a danger, controls the illuminating component such that light, which shows a direction of the person who is assumed to be a danger and a distance to the person, is illuminated onto a road surface.

Abstract: A volatile semiconductor memory includes a self-test controller detecting a defect of a memory cell, and an address storage storing a defective address indicating an address of a defective memory cell, and a refresh adjust circuit setting a refresh cycle of a memory cell designated by the defective address to be shorter than a refresh cycle of a normal memory cell.

Abstract: A volatile semiconductor memory includes a self-test controller detecting a defect of a memory cell, and an address storage storing a defective address indicating an address of a defective memory cell, and a refresh adjust circuit setting a refresh cycle of a memory cell designated by the defective address to be shorter than a refresh cycle of a normal memory cell.

Abstract: To provide a semiconductor storage device capable of reducing the number of ECC bits. A semiconductor storage device according to an embodiment of the invention includes a memory cell array, an ECC cell storing ECC bits, and an ECC computating circuit calculating the ECC bits, which calculates first ECC bits as the ECC bits for first data including at least one write data and a part of read data that is read from the memory cell array.

Abstract: An antenna apparatus of the present invention includes a first circularly polarized antenna for a first frequency band, a second circularly polarized antenna for a second frequency band, and a substrate that is common to these two antennas. The antennas are disposed back to back on the front and rear surfaces of the substrate. High-frequency signals in the first frequency band and the second frequency band that are sent and received by the first circularly polarized antenna and the second circularly polarized antenna, respectively, are connected, via a common frequency synthesizer and a common coaxial cable, to an antenna connector of a wireless communication apparatus.

Abstract: Each of guided beam incident portions of an optical waveguide device includes a straight incidence area where laser beams enter, a curved area which curves the laser beams entering from the straight incidence area in a predetermined direction, and a widening tapered area which makes the laser beams that have passed through the curved area parallel or substantially parallel to a propagation direction of the laser beams by decreasing propagation angles of the laser beams.

Abstract: In a master-slice-type semiconductor integrated circuit having a bulk layer on which a plurality of bulk patterns to realize specific circuit functions are formed, and a plurality of wiring layers including variable wiring patterns of which wiring pattern is changeable by a user and fixed wiring layers of which wiring patterns are unchangeable by the user, a plurality of bulk patterns are previously fixed and placed on an entire chip surface where bulk patterns are capable of being formed in the bulk layer, and thereby, a semiconductor integrated circuit corresponding to a use purpose can be manufactured by only designing the wirings of the variable wiring layers and producing masks for forming the designed wirings in the wiring layers at the user side.

Abstract: An antenna apparatus of the present invention includes a first circularly polarized antenna for a first frequency band, a second circularly polarized antenna for a second frequency band, and a substrate that is common to these two antennas. The antennas are disposed back to back on the front and rear surfaces of the substrate. High-frequency signals in the first frequency band and the second frequency band that are sent and received by the first circularly polarized antenna and the second circularly polarized antenna, respectively, are connected, via a common frequency synthesizer and a common coaxial cable, to an antenna connector of a wireless communication apparatus.

Abstract: Each of guided beam incident portions of an optical waveguide device includes a straight incidence area where laser beams enter, a curved area which curves the laser beams entering from the straight incidence area in a predetermined direction, and a widening tapered area which makes the laser beams that have passed through the curved area parallel or substantially parallel to a propagation direction of the laser beams by decreasing propagation angles of the laser beams.

Abstract: A rotary speed detector includes a rotating angle sensor for outputting digital signals which constitute rotating angle data of a rotating member, an angle variation calculator for calculating an angle variation with respect to a predetermined interval of time and a revolving speed calculator for calculating rotary speeds from the angle variation.

Abstract: A rotary speed detector includes a rotating angle sensor for outputting digital signals which constitute rotating angle data of a rotating member, an angle variation calculator for calculating an angle variation with respect to a predetermined interval of time and a revolving speed calculator for calculating rotary speeds from the angle variation.

Abstract: A semiconductor storage device of the present invention includes a unit for determining a pulse width by using a command input signal as a start point and thereby making a sense-amplifier activation signal or a latch capture signal of a synchronous mask ROM synchronize with activation or inactivation of a clock signal after cycles corresponding to the number of clocks of a set latency to generate timing.

Abstract: For detecting a coil short-circuit in an electric motor such as a switched reluctance motor, an apparatus includes a first phase coil, a second phase coil, and a third phase coil. Through each of the coils, a current, whose amount is sensed by a current sensor, flows in such manner that the amount ranges from zero to a reference current amount in a reference set-up time duration. If the detected amount of current by the current sensor becomes the reference current amount in a time duration which is shorter than the reference set-up time duration and the resultant condition continues for an another reference time duration, it is regarded that a short-circuit occurs in the phase coil corresponding to the current sensor and the apparatus stops the electric motor.

Abstract: Angle bounds of a normal energization of the coil of an electric motor are generated in accordance with a combination of a rotation direction and a torque direction of the electric motor. Angle bounds of the decided energization are determined based on a decision of either energization or deenergization of the coil and the detected rotation angle of the rotor. An abnormal condition is determined to exist when the angle bounds of the decided energization are not within the angle bounds of the normal energization.

Abstract: A modular clutch includes a flywheel 2, a clutch cover assembly 3 and a clutch disk assembly 4, which form a single module that in one embodiment is installed directly onto the crankshaft of an engine, and in an alternate embodiment is attached to a flex plate. The modular clutch is configured to be installed and replaced as a unit. The clutch cover assembly 3 has a clutch cover 21, a pressure plate 22 and diaphragm spring 23. The clutch disk assembly 4 has a clutch engagement portion 31 made of a metallic sintered body.

Abstract: A modular clutch includes a flywheel 2, a clutch cover assembly 3 and a clutch disk assembly 4, which form a single module that in one embodiment is installed directly onto the crankshaft of an engine, and in an alternate embodiment is attached to a flex plate. The modular clutch is configured to be installed and replaced as a unit. The clutch cover assembly 3 has a clutch cover 21, a pressure plate 22 and diaphragm spring 23. The clutch disk assembly 4 has a clutch engagement portion 31 made of a metallic sintered body.

Abstract: A core drill of dry type used for drilling through concrete structure or the like. A main shaft 23 rotatably driven by a motor 33 with a fan 32 is provided with a rubber ring 27 for allowing axial vibration of the shaft, and loosely supported by bearings 25 and 26 with a clearance between them so that it can be slightly tilted in the lateral and transverse directions. During drilling, a spacing between a diamond tip in a leading end of the core bit and a concrete structure or the like is changed as the core bit is moved in the vertical direction and tilted in the lateral and transverse direction, and chips produced by the drilling operation are efficiently discharged by injecting air from the fan 32 through an axial bore 22 in the shaft 23.