Abstract: A VR resolver with a shaft angle multiplier of 3× has a rotor core 104 that is provided with magnetic poles 104a and 104b, which project in a radial direction, and a magnetic pole 104c, which does not project in a radial direction. The VR resolver also has a stator core 101 provided with salient poles 102c and 102e that are wound with a cosine wave detection wire and that are connected. A zero point detecting terminal is led from the cosine wave detection wire between the cosine winding wound portions of the salient poles 102c and 102e. The zero point detecting terminal provides a voltage waveform. By setting a threshold value for the voltage waveform, an absolute angle of the rotor core 104 is measured.

Abstract: A seal lip having: a cylindrical seal surface in close contact with an outer peripheral surface of an inner race with outer side and inner side surfaces standing upright respectively from an outer end and an inner end of the seal surface and reaching a lip supporting portion of a seal member, and protruding on an inner peripheral surface of the lip supporting portion. The outer side surface is a perpendicular surface standing upright from the outer end of the seal surface in a direction perpendicular to a generating line of the outer peripheral surface of the inner race. The inner side surface includes: a perpendicular surface standing upright from the inner end of the seal surface in parallel with the outer side surface; and a conical surface inclined toward the outer side surface extending outward in a radial direction from an outer peripheral end of the perpendicular surface.

Abstract: The Installation is equipped with a power supply unit and a High-Definition Multimedia Interface (HDMI), this installation being able to be connected to a second HDMI device with which it can communicate by using a protocol defined in the HDMI Standard, this installation or device being able to be set in Standby or Power-down mode and to be removed from this Standby or Power-down mode by said second HDMI device via a Consumer Electronic Control (CEC) line. The installation has a Power Management Unit (PMU) arranged on the primary side of said power supply unit, this PMU having its own power supply circuit directly connected to the power supply source of this installation or device and being arranged for switching OFF the electrical energy on the secondary side of said power supply unit when this installation or device enters said Standby or Power-down mode.

Abstract: A method for controlling a high-frequency transformer by which the acoustic transformer noises occurring during intermittent operation (burst operation) are reduced. This is achieved according to the invention by halving a length of the first and the last pulse of an AC voltage pulse train or the first and the last half-wave in the ON interval (Tn). This goes to avoid magnetizing peaks in the core that cause a major part of the background noise.

Abstract: A color wheel comprises sectorial color filter segments and a support member. Protrusions are disposed at the support member and engaged with either through-holes or cavities as segment fixing mechanisms formed at the color filter segments, whereby the color filter segments are fixedly positioned with respect to the support member in the radial direction. Consequently, the color filter segments can be surely prevented from getting scattered off when the color wheel spins at high speed.

Abstract: There is provided a DC-DC converter including: a main switching element to perform an on-off operation; a first choke coil; an output capacitor; and a diode module. The diode module includes a first series circuit which includes an auxiliary switching element and a resonant capacitor, and a second series circuit which includes a flywheel diode and a resonant coil, wherein the first series circuit and the second series circuit are connected in parallel to each other. The DC-DC converter reduces the switching loss, deals with an extensive range of input and output voltage variation, and accommodates easy modifications from conventional circuits.

Abstract: The invention relates to a cooling apparatus having a cooling structure that comprises at least one surface area for introducing heat, and a cooling member that is connected to the cooling structure in a heat-conducting manner, wherein the cooling member is moveable so as to generate an air flow by means of the movement of the cooling member, the air flow supporting heat emission from the cooling member to the environment.

Abstract: Thinning of a planar illumination device using an LED is accelerated while higher and more uniform brightness is promoted. An LED 24 constituting the planar illumination device has no lamp house, but a translucent resin that seals an LED chip 25 is exposed. An outline of the translucent resin is formed as a projecting portion 28 comprising a continuous curved surface. Moreover, on a side end face 12a opposed to the LED 24 of a light guide plate 12, a notch portion 12d following the outline of the projecting portion 28 is formed, and on this notch portion 12d, a prism row 101 made of a plurality of unit prisms extending in a direction crossing the light guide plate 12 is formed.

Abstract: A speaker comprises: a magnetic circuit composed of a pot yoke, a magnet, and a pole piece; a diaphragm shaped conical, defining an outer periphery and an inner periphery, and having a surround half-rolled and fixedly disposed at the outer periphery and a voice coil bobbin with a voice coil wound thereon fixedly disposed at the inner periphery; a spider having an outer diameter equal to or larger than the outer diameter of the surround; a frame having the magnetic circuit fixedly disposed at its central opening; and a spacer ring fixedly disposed inside the frame, and having a surround edge receiving portion adapted to fixedly receive the entire outer edge of the surround thereon.

Abstract: The material of the wall inside a hole in a housing is squeezed toward the center of the using a staking tool with a diameter larger than that of the hole. The material necessary for forming a locking section can be obtained from only a small part of the entire area of the wall of the hole. The amount of material necessary for the entire process is secured and the material is pressed so as to contact with an end face of the outer race using the staking tool, forming the locking section. Accordingly, the locking section provides sufficient strength. Also, since only the small part of the entire area of the wall is necessary as described above, there is no decrease in strength or deformation as to the thin housing.

Abstract: An electromagnetic wave absorber is formed of an Mn—Zn ferrite including: a spinel primary phase which contains 40.0 to 49.9 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, and the remainder consisting of MnO; and a secondary phase which contains CaO as a base component. In the ferrite, the spinel primary phase accounts for 50.0 to 99.0% of the aggregate mass of the spinel primary phase and the secondary phase.

Abstract: An electric seat in which other members are prevented from being damaged and thus safety is ensured. When a current consumed by the leg rest motor during the downward pivotal movement of the leg rest is larger than the reference value for the downward movement of the leg rest, the switch for the motor is opened. In a case where the leg rest is pivoted downward with a baggage placed in the operating space of the leg rest in the bed position, when the leg rest abuts against the baggage, a large load is applied to the leg rest and a current that exceeds the reference value for the downward movement of the leg rest flows in the leg rest motor, the switch is opened, the respective motors are actuated, and the downward pivotal movement of the leg rest is stopped. Therefore, the leg rest is prevented from pressing the baggage unnecessarily, thereby preventing the baggage from being damaged.

Abstract: A magnetic circuit for a speaker comprises: a bottom yoke including a center pole; a ring magnet; a top plate; and a short-circuiting ring shaped like a hollow cylinder. The short-circuiting ring is disposed close and parallel to a voice coil and attached to the inner portion of the bottom of the top plate.

Abstract: There is provided a floating nut which opportunity of application can be expanded by increasing the floating amount of the floating nut. The clearance between the spline of an outer circumferential surface of a nut 6 and a spline opening 5b of a retainer 5 is freely set on the condition that the outside diameter df of a flange 6c of the nut 6 and the outside diameter dj of a stop ring 7 are larger than the diameter of a spline opening 5b of the retainer 5. The applications of the floating nut 4 can be extended by determining the clearance between the spline of the outer circumferential surface of the nut 6 and the spline opening 5b of the retainer 5 according to the required floating amount.

Abstract: A device for measuring the length of a linear movement using a rotary potentiometer improves measuring accuracy, measurement deterioration for a long-period usage and miniaturization. The device in includes a regular winding mechanism, forming a single layer of wire, constructed of a screw feeding mechanism stored in a housing to axially move the drum when rotating, and the d m converts a linear displacement into a rotational displacement with the wire. Moreover, the wire on the drum is located so as to have a constant radius from the center of rotation. The screw feeding mechanism is constructed in such a manner that the drum is axially moved by the distance corresponding to one pitch of the regularly wound wire in every revolution of the drum, so that winding and unwinding of the wire can be performed at the same position of the housing all the time, thereby avoiding disarrangement of wound the drum causing a deterioration in an accuracy.

Abstract: A speaker comprises: a magnetic circuit composed of a pot yoke, a magnet, and a pole piece; a diaphragm shaped conical, defining an outer periphery and an inner periphery, and having a surround half-rolled and fixedly disposed at the outer periphery and a voice coil bobbin with a voice coil wound thereon fixedly disposed at the inner periphery; a spider having an outer diameter equal to or larger than the outer diameter of the surround; a frame having the magnetic circuit fixedly disposed at its central opening; and a spacer ring fixedly disposed inside the frame, and having a surround edge receiving portion adapted to fixedly receive the entire outer edge of the surround thereon.

Abstract: In a spread illuminating apparatus including a transparent substrate which has a light reflection pattern with grooves formed to be inclined with respect to an optical axis of a light source, an optical path conversion means comprising grooves and flat portions is formed on a side surface of a light conductive member, where the depth of the grooves increases in proportion to the increase in distance from either of spot-like light sources toward a deepest groove formed at a predetermined position. The deepest groove is formed at a position off the center of the light conductive member by a predetermined distance toward either of the spot-like light sources, whereby the distribution of the amount of light emitted from the light conductive member toward the transparent substrate can be appropriately modified so as to level off the unevenness in brightness on the screen.

Abstract: In a magnetic head, a second leg portion 10b with which a coil is not coupled is connected to a first long side 82 1 (outer-body 8). Since the sectional area (thickness) is made larger in comparison to the conventional technique, thereby the magnetic resistance becomes lower and the read/write efficiency is increased. Since the second leg portion 10b is adapted to be connected to the outer-body 8 and thereby has a great rigidity, even if any shock is applied during assembling or while in use, the second leg portion 10b is prevented from being bent or generating cracks.