摘要:
An image control apparatus in an image display system applies scrambling only to image data which requires content protection and notifies to a display apparatus which pixel or pixels are scrambled. Alternatively, when a plurality of windows are displayed at the same time, the image control apparatus scrambles each window individually using a different key, and notifies to the display apparatus which scramble is applied to each pixel.
摘要:
A rotary electric motor is provided which comprises an annular first rotor, an annular stator disposed concentric with and radially outside the first rotor, and an annular second rotor disposed concentric with and radially outside the stator, the stator including a stator core made up of a plurality of stator pieces that are arranged in a circular array and electrically independently from each other, coils wound around the respective stator pieces, annular first and second brackets disposed on opposite axial ends of the stator core, a fastening device passing through holes of the first and second brackets and fixedly holding the stator core between the first and second brackets, and an induction current suppressing device suppressing an induction current that is produced in response to a variation of magnetic flux of each of the coils and flows through the fastening device.
摘要:
A drive circuit for a motor/generator, having a first rotating electrical machine which is mainly used as a motor and a second rotating electrical machine which is mainly used as a generator, is characterized in that a booster circuit is disposed at a position where the current for rotating the first rotating electrical motor cancels out with the current generated by the second rotating electrical machine. In this manner, the booster circuit comprising small capacity elements can be used in the drive circuit for the motor/generator.
摘要:
An inner rotor (5) provided with a plurality of magnetic poles is disposed on an inner side of a ring-shaped stator (3) of a motor/generator (1). The outer rotor (7) provided with a number of magnetic poles is disposed on an outer side of the stator (3). The number of magnetic poles of the outer rotor (7) differs from the number of magnetic poles of the inner rotor (5). The stator (3) is provided with coils (16) simultaneously generating a magnetic field synchronized with the rotation of the inner rotor (5) and a magnetic field synchronized with the rotation of the outer rotor (7). The stator (3) is provided with a plurality of cores (3A) partitioned on a circumferential periphery and composed of a magnetic material to allow coils (16) to be wound thereon. Connectors (19) are provided connecting a part of one core (3A) to a part of an adjacent core (3A). One magnetic resistance is created on an inner peripheral section of cores (3A) located between the inner rotor (5) and the coils (16) and a second magnetic resistance is created on an outer peripheral section of the cores (3A) located between the outer rotor (7) and the coils (16). The ratio of these magnetic resistances may arbitrary be set by the arrangement of connectors (19).
摘要:
A trunnion (3) of a toroidal continuously variable transmission comprises a pulley (38) having a pulley groove (30) and a notch (37) crossing the pulley groove (38). The trunnion (3) rotates in synchronism with another trunnion by looping an endless wire around the pulley groove of each trunnion (3) and by engaging a large diameter part of the endless wire with the notch (37). After the trunnion (3) is formed by die forging, a rotary tool (90) is first aligned with a boundary interface (31′A, 31′B) between the pulley groove (30) and notch (37). The tool (90) is then rotated while it is moved forward in the axial direction of the tool (90), and the boundary interface (31′A, 31′B) is cut to a predetermined position.
摘要:
Two rotors (3,4) and one stator (2) are arranged coaxially. A common coil unit (6) for individually driving two rotors (3, 4) is provided in a stator (2), and a composite current of an alternating current for driving the first rotor (3) and an alternating current for driving the second rotor (4) is supplied to coil units (6). First salient poles (7B, 7C, 21C, 21D, 21E) facing the first rotor (3), and second salient poles (7D, 21F) facing the second rotor (4), are provided. By setting the number of these salient poles equal to the magnetic pole number ratio of the first rotor (3) and second rotor (4), the number of salient poles is reduced.
摘要:
Two rotors (3,4) and one stator (2) are arranged coaxially in a three layer construction. A coil unit comprising plural coils (6) arranged at equal angular intervals on a stator (2) is provided. The coil unit forms rotating magnetic fields of identical number to the magnetic pole number of the first rotor (3) according to a first alternating current, and forms rotating magnetic fields of identical number to the magnetic pole number of the second rotor (4) according to a second alternating current. Plural rotors (3, 4) are driven by a single coil unit by supplying a composite current of the first and second alternating currents to the coil unit.
摘要:
Input and output cone discs are coaxially arranged. Power rollers are each operatively interposed between the input and output cone discs. Trunnions are rotatable supporting the power rollers respectively. An upper link has opposed ends to which upper ends of the trunnions are connected, and a lower link has opposed ends to which lower ends of the trunnions are connected. Shafts extend downward from the lower ends of the trunnions. Each shaft is connected to the corresponding lower end through a connecting pin. Pistons are associated with the shafts respectively. Each piston has a hollow boss portion which receives therein the corresponding shaft. The hollow boss portion has an upper end which faces toward the lower end of the corresponding trunnion. Articulated structures are associated with the trunnions respectively. Each articulated structure is arranged between the upper end of the hollow boss portion and the lower end of the corresponding trunnion, so that when a thrust force is applied to the trunnion in a direction to resiliently flex or bend the same, the trunnion is permitted to pivot relative to the hollow boss position in a direction to absorb the flex of the trunnion.
摘要:
An image forming apparatus includes a heater for generating heat upon reception of electric energy; a film movable with a recording material having an unfixed image; and a pressure roller for forming a nip with the heater, with the film interposed therebetween; wherein the pressure roller starts to rotate at the same time as a main power switch of the apparatus is turned on.
摘要:
A continuously variable transmission comprises a transmission unit and a casing. The transmission unit includes input and output disks on a main shaft and friction rollers arranged around axes of the disks and supported by trunnions. For controlling the speed ratio of the disks, the trunnions are urged by pistons and moved synchronously along own swinging axes perpendicular to the rotating axes of the friction rollers. Neighboring ends of the trunnions are mutually connected by linkage members and pivotally supported by the casing. The pistons can be fitted into the casing 1 from the outer side thereof, and can be detachably connected to the trunnions in the casing. The transmission is provided with a linkage support member, which can be inserted in the casing from an end opening thereof and fixed thereto perpendicular to an axis of the casing. When assembling the transmission, the main shaft is passed through a penetrating hole of the linkage support member, and the linkage members are pivotally supported by the linkage support member. Then, the disks are tightened in mutually closing directions, forming a sub-assembly of the transmission unit 5 without the pistons. Then, the subassembly is inserted in the casing from the end opening thereof and fixed to the casing perpendicularly thereto, while the pistons are fitted into the casing from the outer side thereof and connected to the trunnions of the subassembly in the casing respectively.