Abstract: In an outer rotor motor (1): a hub base (3) is in a center of an upper side of the motor (1); a chucking magnet (16) for carrying a disk is near the hub base (3); a spindle (4) is fixed to a central hole of a rotor yoke which is provided with a permanent magnet (15) in its outer peripheral portion; the spindle (4) is supported by a bearing (5) fixed to a boss (7b) of a bearing housing (7) in which a ring-like rib (7c) is concentrically formed around the boss (7b) to form a circumferential groove (7d) therebetween and a hub of a stator (8) is mounted on the rib (7c); a leaf spring (12) is over the groove (7d) of the bearing housing placed under the base (3); and a drive pin (10) is fixed to a free end of the spring (12) to extend upward from the base (3) due to its resiliency through a hole of the hub base (3).

Abstract: An image area discriminating system for an image processing apparatus which discriminates between a character area and a halftone area on an original document containing the character and halftone areas, selects parameters for each discriminated area, and adjusts and generates image data. The image area discriminating system comprises: a block color discriminating unit for grouping pixels into blocks and determining block colors on the basis of the formed pixel blocks; a determining unit for detecting the run lengths of block colors other than white, for comparing the detected run lengths with a predetermined threshold value, and for determining whether the document area is the character area or the halftone area; and an area signal output unit for outputting a signal to select an image area signal on the basis of an output signal outputted from the determining unit.

Abstract: A color image recognition apparatus capable of judging whether an original is monochromatic or color comprises an image reader for rapidly scanning the original to develop image data and a color display coordinate system for converting the image data to luminance data and color difference data. A pixel color judging unit judges the color of each pixel based upon the luminance data and the color difference data, and a block color judging unit compares the number of color pixels with the number of black pixels contained in each of the plurality of blocks of pixels. An original color judging unit then counts the number of color blocks in the original to judge the color of the original.

Abstract: A high definition image generating system for an image processing apparatus for forming an image by converting multi-level data into dot impact output data of font patterns. The system comprises a block forming circuit for averaging multi-level data by a (2.times.2) block, an edge-direction detecting circuit for detecting an edge direction to output an edge-direction detection signal, an edge detecting circuit for detecting an edge to output an edge detection signal, and a switching circuit for switching a font pattern to be outputted to another pattern according to the edge detection signal and the edge-direction detection signal.

Abstract: An image quality control system for an image processing system for producing an image of high quality by removing noise and mesh-dot components from image input signals representing a scanned original image, the image quality control system comprises a low-pass smoothing filter adapted for removing from image input signals representing a halftone image substantially all of any mesh-dot component, for smoothing the image input signals representing the halftone image, and for producing smoothed output signals representing the smoothed image input signals, a smoothing modulation table for modulating the smoothed output signals of the smoothing filter to produce modulated smoothed output signals, a bandpass edge detect filter for detecting edge component signals of the image input signals, the edge component signals comprising a high frequency component of the image input signals, the edge detect filter producing edge output signals, an edge emphasis modulation table for modulating the edge output signals to prod

Abstract: An area discriminating system for use in an image processing system capable of processing an image signal including character images signals and halftone images signals which determines the hues of the images represented by the image signal, produces hue present signals for each color of a selected number of colors which is a component of the hues of the images and a hue absent signals for each color of the selected number of colors which is not a component of the hues of the images, detects edge portions of images represented by the image signal, produces edge signals having values representing the edge portions, and produces edge emphasized signals for each hue included in the portion of the image represented by the edge signals. The image processing system further determines whether the image represented by the image signal is a halftone image or a character image and produces the edge emphasized signals further in accordance with the image determination.

Abstract: A brushless dc motor comprising a stator, and a rotor incorporating a hollow cylindrical permanent magnet. The rotor magnet has sectors magnetized radially in opposite directions to define poles of opposite polarity extending around the circumference of the magnet. The magnet is completely magnetized so as to leave no non-magnetized sectors between the poles of the magnet. The magnet has grooves in its surface facing the stator, the grooves extending in the longitudinal direction of the magnet. Each groove is offset from, or non-symmetrical with respect to, the center of the rotor pole in which it is located.

Abstract: An edge processing system for use in a color image processing device for reproducing images having a plurality of colors through its execution of repeated developing processes for the individual recording signals of the developed colors, comprises a low-pass digital filter for eliminating mesh dot components of the recording signals to smooth halftone images; a high-pass digital filter for detecting an edge part composed of high frequency components of the recording signals; a hue detector for detecting the hue of the recording signals to produce hue signals; an edge emphasizing signal generator for generating edge emphasizing signals according to the hue signals of the hue detecting means and the output signals of the high-pass digital filter; and a synthesizer for modulating and synthesizing the edge emphasizing signals and the output signals of the low-pass digital filter.

Abstract: A brushless dc motor comprising a stator, and a rotor incorporating a hollow cylindrical permanent magnet. The rotor magnet has sectors magnetized radially in opposite directions to define poles of opposite polarity extending around the circumference of the magnet. The magnet is completely magnetized so as to leave no non-magnetized sectors between the poles of the magnet. The magnet has grooves in its surface facing the stator, the grooves extending in the longitudinal direction of the magnet. Each groove is offset from, or non-symmetrical with respect to, the center of the rotor pole in which it is located.

Abstract: A method of manufacturing an armature coil, which comprises a printed coil obtained by printing and arranging a plurality of sets of unit coil groups, each comprising an even number of unit coils, on a belt-like, thin and pliable insulating material, and a pliable insulating material overlaid over and wound together with the printed coil, wherein the gaps between the printed coil and the insulating material and between the adjoining material layers are filled for fixing in the state the printed coil and the insulating material have been wound and laminated into a cylindrical shape, is featured in that a thermoplastic adhesive material is applied to the surface of the insulating material, and a tailing end of the insulating material is adhered to the adjoining inner peripheral layer by heating at least in the step of winding and laminating the printed coil and the insulating material into a cylindrical shape.

Abstract: An armature coil has sets of unit coil groups, each comprising an even number of unit coils, which are printed and arranged on a belt-like, thin and pliable insulating material to form a printed coil. The printed coil is wound and fixed into a cylindrical shape, the armature coil being featured in that the gap between adjacent conductors of the unit coil groups located on the outer periphery side of the cylindrical shape is set larger than the gap between adjacent conductors of the unit coil groups located on the inner periphery side thereof such that the conductors of respective unit coils are axially arranged to take the same angle in the circumferential direction.

Abstract: Herein disclosed is a brushless DC motor of high performance, which has its construction simplified and feasible made by sandwiching an annular coil between two stator yokes having a plurality of magnetic elements in the circumferential direction, by magnetically shorting the two stator yokes through a shorting member, and by providing a magnetic pole detector for detecting the positions of the magnetic poles of a rotor.

Abstract: A permanent-magnet stepping motor includes a stator which has resinous protrusions at its one end. An end plate disposed on one side of the stator is molded integrally with the stator. A flange plate is fixed to the other side of the stator, using the protrusions. The stator includes four stator yokes and two annular coils that are disposed at given positions. These yokes and coils are coupled together by molding a resin.

Abstract: A brushless motor actuated by a predetermined frequency and driven at constant speed with less wow and flutter component in accordance with a pulse signal of the frequency applied. The motor has a rotor enclosed in a stator, the latter having driving windings. The rotor includes a rotor shaft and a flywheel connected to the shaft. The flywheel is housed in a motor case.