Abstract: This speaker system includes: a speaker device that is disposed outside a region of a projection surface on which a display surface of a display is projected, the speaker device functioning as a real sound source; and a reflector that has a reflection surface reflecting a sound output from the speaker device, the reflector localizing a sound image of a virtual sound source within the region of the projection surface. The reflector has an elliptical reflection surface in at least a part of the reflection surface. With this configuration, the sound output from the speaker device disposed outside the region of the projection surface is reflected on the reflector, and a sound image thereof is localized within the region of the projection surface, whereby it is possible to bring a display position of a video into alignment with an output position of the sound. Thus, a comfortable viewing state can be ensured for a viewer.

Abstract: The present technology relates to a sound reproducing apparatus and a sound reproducing method capable of realizing appropriate sound image localization without deteriorating sound quality. The sound reproducing apparatus includes a reflection speaker that is capable of performing directivity control and outputs a sound toward a predetermined surface on the basis of a high-band signal of a sound signal, and a plurality of low-band speakers that is disposed near the predetermined surface and each outputs a sound on the basis of a low-band signal of the sound signal. The present technology is applicable to a sound reproducing apparatus.

Abstract: This speaker system includes: a speaker device that is disposed outside a region of a projection surface on which a display surface of a display is projected, the speaker device functioning as a real sound source; and a reflector that has a reflection surface reflecting a sound output from the speaker device, the reflector localizing a sound image of a virtual sound source within the region of the projection surface. The reflector has an elliptical reflection surface in at least a part of the reflection surface. With this configuration, the sound output from the speaker device disposed outside the region of the projection surface is reflected on the reflector, and a sound image thereof is localized within the region of the projection surface, whereby it is possible to bring a display position of a video into alignment with an output position of the sound. Thus, a comfortable viewing state can be ensured for a viewer.

Abstract: According to one embodiment, a current input converter includes a first metal plate having a solid shape, which has one end attached to the terminal table and one other end attached to one end of a primary-side coil of the transformer, and connects the terminal table and the one end of the primary-side coil of the transformer to each other, and a second metal plate having a solid shape, which has one end attached to the terminal table and one other end attached to one other end of the primary-side coil of the transformer, and connects the terminal table and the other end of the primary-side coil of the transformer to each other.

Abstract: According to one embodiment, there is provided a protection relay. The protection relay includes an input circuit that detects a state of an external device according to whether or not an external input voltage is larger than a preset threshold voltage. The input circuit includes switching unit that is made conductive by a divided voltage obtained by voltage-dividing resistors that divide the external input voltage when the external input voltage is higher than or equal to the threshold voltage, and a photocoupler that is operated by a constant current of a constant current output circuit supplying a constant current and outputs an operation signal to the operation unit when the switching unit is made conductive.

Abstract: According to one embodiment, there is provided a protection relay. The protection relay includes an input circuit that detects a state of an external device according to whether or not an external input voltage is larger than a preset threshold voltage. The input circuit includes switching unit that is made conductive by a divided voltage obtained by voltage-dividing resistors that divide the external input voltage when the external input voltage is higher than or equal to the threshold voltage, and a photocoupler that is operated by a constant current of a constant current output circuit supplying a constant current and outputs an operation signal to the operation unit when the switching unit is made conductive.

Abstract: According to one embodiment, a current input converter includes a first metal plate having a solid shape, which has one end attached to the terminal table and one other end attached to one end of a primary-side coil of the transformer, and connects the terminal table and the one end of the primary-side coil of the transformer to each other, and a second metal plate having a solid shape, which has one end attached to the terminal table and one other end attached to one other end of the primary-side coil of the transformer, and connects the terminal table and the other end of the primary-side coil of the transformer to each other.

Abstract: An inter-vihicle distance detecting device for automatic tracking of a foregoing car which comprises: image sensors for taking images of a foregoing car; displaying means for displaying one of the images of the foregoing car being taken by the image sensors; an image taking window which repeats forward and backward movement horizontally from an end to the other end of a display of the displaying means at a predetermined speed; an image tracking starting switch being operable by a driver; image tracking means for tracking the image of the foregoing car, activated by the image tracking starting switch when the image of the foregoing car enters in the image taking window; and detecting means for detecting an inter-vehicle distance between a car of the driver and the foregoing car being displayed on the image taking window.

Abstract: A rotor for a permanent magnet-type dynamoelectric machine comprises a rotor shaft and a rotor magnet assembly including a plurality of permanent magnet segments each having a chamferred axially-extending outer side edges defining, together with the chamferred outer side edge of the adjacent magnet segment, a plurality of axial recesses when the magnet segments are mounted around the rotary shaft. The machine rotor further comprises a nonmagnetic support tube member for contacting and supporting the outer circumferential surface of each of the permanent magnet segments of the rotor magnet assembly, the support tube member having a plurality of inwardly extending projections for contacting and supporting the chamferred side surfaces of the magnet segments. The nonmagnetic support tube member may comprise a pair of metallic cup-shaped member having a substantially tubular members disposed around the rotor magnet assembly and a radially extending end plate member attached to the rotary shaft.

Abstract: An inner rotor type brushless motor includes a front bracket 91 and a cup shaped frame 81 fitted thereon and a stator core 1 is pressure-inserted into the frame. A rotational position detector 13 for the rotor is arranged in the front bracket side to facilitate an assembling of the motor while providing a water-proof structure with high heat radiation characteristics.

Abstract: A brushless motor in which the Hall elements are mounted around a sub-magnet by means of a holder and a printed circuit board is disclosed. The holder comprises a semicircular disk-shaped base portion and a semicircular cylindrical extension portion extending therefrom to oppose the outer circumferential surface of the sub-magnet across a small radial gap, wherein a plurality of rectangular bores for accommodating the Hall elements are formed in the extension portion at a fixed circumferential pitch, each bore having an axial depth substantially greater than the length of Hall elements. The Hall elements accommodated in respective bores are sealed by an adhesive, and the semicircular disk-shaped printed circuit board is attached on the base portion of the holder by means of a mortice and tenon joint, to close the bores of the holder. The leads of the Hall elements are soldered to the printed circuit pattern formed on the back surface of the printed circuit board.

Abstract: The present invention relates to a throttle valve control device for controlling a throttle valve of an engine by an electronic controlled actuator, in which, in order to improve the safety and response speed, first and second driving motors which rotate independently and a driving force conversion mechanism for combining rotational movements of the first and the second driving motors and converting them into a linear movement for transmission are provided to regulate an opening of the throttle valve by the linear movement transmitted from the driving force conversion mechanism and the first and the second driving motors are controlled by control signals from an operation control portion for calculating an optimum opening of the throttle valve.

Abstract: A wire cable 11 extends between an accelerator pedal 19 and a motor pulley 14 controlled depending upon the driving conditions. A block 13 is disposed in contact with the wire cable, and the throttle valve 2 is opened and closed by the movement of the block. Accordingly, an optimum control of the throttle valve can be achieved by driving the block with both the accelerator pedal and the motor, and if the motor system fails the throttle valve can still be operated by the accelerator pedal alone.

Abstract: A flow rate control valve system in which a valve plug is linearly driven against a valve seat by a stepping motor. The valve plug is fixed to a sleeve that has internal threads mating with external threads on the motor shaft. Splines prevent rotation of sleeve and plug. A bearing is interposed between a smooth end of the shaft and the plug.