Abstract: A photographing device includes a photographing unit which generates a photographing data by performing photographing with a photographing component, a display unit which displays an image which is photographed in the photographing unit, a sensor unit which senses whether the photographing device rotates, and a control unit which changes a reading order of the photographing component according to a rotation direction and a rotation degree when the photographing device rotates in a recording stand-by mode state, and controls the photographing unit in order to generate the photographing data by maintaining the reading order if the photographing device rotates in a recording mode state.

Abstract: A photographing device includes a photographing unit which generates a photographing data by performing photographing with a photographing component, a display unit which displays an image which is photographed in the photographing unit, a sensor unit which senses whether the photographing device rotates, and a control unit which changes a reading order of the photographing component according to a rotation direction and a rotation degree when the photographing device rotates in a recording stand-by mode state, and controls the photographing unit in order to generate the photographing data by maintaining the reading order if the photographing device rotates in a recording mode state.

Abstract: There is provided a flat type piezoelectric ultrasonic motor for generating a rotation force to a rotor by ultrasonic vibrations. In the piezoelectric ultrasonic motor, a vibrator is formed of elastic material at a given size, a plurality of piezoelectric plates are attached on the vibrator, a rotor is drivingly connected to the vibrator thereby to be rotated, and a power source unit applies driving voltages to the piezoelectric plates. The piezoelectric plates are arranged on quartered surface areas of the vibrator in such a way that longitudinal axes of neighboring piezoelectric plates form a given angle therebetween and opposing piezoelectric plates have opposite polarizations, and the power source unit applies alternating driving voltages to the piezoelectric plates thereby to make the rotor rotated, thereby making it possible to simplify the piezoelectric plates' shape, minimize its size and enhance its driving efficiency.

Abstract: Provided is a compact lens module which enables zoom and auto-focus functions even in a small lens module by providing a lens carrying structure using a supersonic driving unit. A lens unit is positioned in a case and has at least one lens. A carrying member is rotatably connected in the case and connected to the lens unit so that the lens unit may move forward and backward. In addition, a driving unit is mounted in the case for transferring a driving force to the carrying member so as to move the lens unit by repeatedly contacting and non-contacting with the carrying member.

Abstract: Disclosed are an apparatus and method for selectively outputting an audio/video signal and a headphone signal through a common jack using an analog switch and a method thereof in a portable composite appliance. It is determined whether a specified plug is inserted into a common jack. If the specified plug that is identified as a headphone plug, a first logic level is output to a switching unit, which performs a switching operation and an audio signal is output to the headphones. Alternatively, if the inserted plug is identified as an audio/video plug, a second logic level is output to a switching unit, which performs a switching operation and an audio/video signal is output to the audio and video device.

Abstract: Provided is a compact lens module which enables zoom and auto-focus functions even in a small lens module by providing a lens carrying structure using a supersonic driving unit. A lens unit is positioned in a case and has at least one lens. A carrying member is rotatably connected in the case and connected to the lens unit so that the lens unit may move forward and backward. In addition, a driving unit is mounted in the case for transferring a driving force to the carrying member so as to move the lens unit by repeatedly contacting and non-contacting with the carrying member.

Abstract: The present invention relates to a lens driving device, more particularly, capable of adjusting an effective focal length determined by the relative distance of lenses in an optical device having a zooming function. In the lens driving device, a barrel unit has an internal space for containing a lens therein and a guide slot for allowing forward and backward movement of the lens through rotation of the barrel unit. A ring-shaped piezoelectric actuator unit is arranged adjacent to the barrel unit for being contracted or expanded radially in response to an external input signal. A drive member is mounted on the piezoelectric actuator unit and having a plurality of segments projected toward the barrel unit to contact the same.

Abstract: A non-contact driving motor capable of keeping its non-contact state irrespective of its start-up or stoppage condition, thereby obtaining a semi-permanent durability.

Abstract: A method for surface processing of sintered oilless bearing and an apparatus thereof are disclosed by which method the efficiency of covering the pores and the surface roughness of protuberance that is nonporous surface may be improved by means of surface processing of inner diameter surface at time of sizing process using a correcting rod where many correction grooves have been formed on its top part.

Abstract: A scanner motor of a laser beam printer capable of removing a bearing friction during a high-speed rotation thereof, thereby minimizing generation of noise and vibrations, while achieving an enhancement in durability and keeping a stable drivability of a mirror.

Abstract: A spindle motor is disclosed which allows more excellent abrasion resistance and productivity exhibited by making the thrust to be integrally formed at driving shaft and by making each of kinetic pressure-generating grooves that generate fluid kinetic pressure in axial direction to be formed at different formation position from each other that may be less influenced than ever by force of friction with fluid material.

Abstract: A method for fabricating a sintered oilless bearing using a correcting rod having a projection correcting portion and a groove forming portion having outer diameters respectively identical to inner diameters of projections and grooves to be formed into the oilless bearing. An upper punch is inserted into the upper portion of the correcting rod for pressing the sintered oilless bearing to allow the inner periphery of the sintered oilless bearing to closely contact the groove forming portion and, simultaneously, fit into the projection forming portion.

Abstract: A sintered oilless kinetic pressure bearing containing an oil is formed with a plurality of grooves along the inner diameter to produce the kinetic pressure, in which the proportion between the groove and corresponding inner periphery portion is appropriately maintained according to the Reynolds equation for decreasing initial abrasion and heightening durability to lengthen the life while a pressure is induced throughout the inner periphery for providing a stiffness coefficient impervious to a great impact or high load imposed by an external force and heightening stability in the rotating motion. The bearing in a cylindrical sintered oilless bearing includes a plurality of grooves along the inner periphery plane thereof in the lengthwise direction of a shaft such that an interval between the grooves become respective inner periphery portions and the groove and inner periphery portion are partitioned by side planes. Thus, assuming that an angle range of the groove is denoted by .alpha.