Abstract:
A spindle motor includes: a rotor; a rotating shaft whose one end is combined with the rotor; a sleeve bearing whose inner circumference rotatably supports the outer circumferential surface of the rotating shaft, and on the outer circumferential surface of which at least one oil circulation recess is provided along the lengthy direction of the sleeve bearing; a bearing housing having a first recess accommodating the sleeve bearing and a second recess that supports the other end of the rotating shaft at a central portion of the first recess, and made of a resin; and a number of protrusions that are protrudingly formed at a gap radially spaced apart from each other around the rotating shaft so that a plurality of guide grooves through which oil passes are formed on the bottom of the first recess, and on which the bottom of the sleeve bearing is mounted.
Abstract:
Provided is a spindle motor having an electrostatic discharge (ESD) path that can stably discharge electric charges introduced from the outside to a rotating shaft through a base plate, in a structure of forming a bearing housing by using a resin and insert-molding the base plate. The spindle motor includes: a rotor to the central portion of which one end of a rotating shaft is coupled; a bearing that rotatably supports the rotating shaft; a bearing housing that accommodates the bearing in the inside of a groove and that is made of a resin; and a base plate whose inner circumferential portion is buried and combined in the inside of the bearing housing, wherein part of the base plate is in contact with the bearing to thus discharge externally introduced static electricity through the rotating shaft, bearing, and the base plate.
Abstract:
Provided is a driving device for a full automatic washing machine in which a clutch unit can stop rotation of a dehydration axis without having a particular brake unit, since the clutch unit is closely adhered to a first dehydration axis and a bushing when the rotation of the dehydration axis is controlled according to a wash or dehydration stroke in a full automatic washing machine. In addition, since a clutch coupler of the clutch unit moves at a wash or dehydration stroke in a driving device of a washing machine to thus be attached to and detached from a clutch gear which controls rotation of the first dehydration axis, and to thereby control a rotational force which is transferred to an inner tub, the washing machine is embodied to have a simple clutch coupling structure. Further, a double-rotor and a single-stator of a brushless direct-current (BLDC) motor which is applied to a driving device of a washing machine are insert-molded into a waterproof structure, to thus maximize a contact area of a bulk molding compound (BMC) molding material to thereby maximize durability.
Abstract:
A wavelength tunable light source includes: an optical gain medium generating light; a wavelength tunable filter positioned on a optical path and transmitting or reflecting only a predetermined wavelength generated from and injected into the optical gain medium; a first housing where the optical gain medium and the wavelength tunable filter are mounted; and an optical fiber block providing the optical wave having the predetermined wavelength come from the wavelength tunable filter, wherein the wavelength tunable filter comprised of a dielectric thin-film filter formed by alternately stacking a first dielectric thin film layer and a second dielectric thin film layer having different refractive index.
Abstract:
A dual mode communication terminal in accordance with one embodiment comprises a first communication module configured to communicate with a first base station; a second communication module configured to communicate with a second base station; a first antenna connected to the first communication module to communicate a first base station signal with a first base station; and a second antenna configured to communicate either the first base station signal with the first base station or to communicate a second base station signal with a second base station, the second antenna having a switching module to connect the second antenna to either the first communication module or the second communication module, wherein in response to receiving a command from the first base station, the first communication module measures quality of the second base station signal received from the second base station.
Abstract:
Provided is a superconducting joining method of first generation superconducting wire, including: removing normal conductor parts from joining portions of first generation superconducting wires to be joined to each other, thereby exposing superconducting filaments; after inserting a superconductor powder into the joining portions, bring the superconducting filaments of the first generation superconducting wires to be joined to each other into contact with each other, and applying a pressure thereon; and causing the first generation superconducting wires that are brought into contact with each other to be subjected to melting diffusion and joined to each other, thereby minimizing a reduction in critical current and joining resistance.
Abstract:
A method and apparatus of performing cell re-search between heterogeneous networks is provided. A mobile terminal (MT) accesses to a high rate packet data (HRPD) network. The MT receives a first message from the HRPD network. The first message includes neighbor radio access technology (RAT) indicator which indicates whether neighbor RAT information used to perform inter-RAT measurement is transmitted from the HRPD network. The MT receives a second message from the HRPD network if the neighbor RAT indicator indicates the transmission of the neighbor RAT information. The second message includes the neighbor RAT information. The MT performs cell re-search on the basis of the neighbor RAT information.
Abstract:
Disclosed is an apparatus and method for processing documents to extract expressions and descriptions. The apparatus for processing documents includes a document collection unit, which collects documents from websites and divides each of the collected documents into a script portion and a description portion to thus generate a script document and a description document, and an expression extraction unit, which extracts expression description sentences on the basis of the description document, and extracts expressions described by the expression description sentences from the script document. According to the invention, study material, including a pair that comprises an expression to be studied and a description thereof, can be automatically constructed.
Abstract:
A seed light module for a WDM-PON system is provided. The seed light module includes a reflector configured to reflect a part of seed light that is generated from a light source generator, and an optical attenuator configured to attenuate the intensity of the reflected seed light and provide the attenuated seed light, which corresponds to a signal generated by attenuating the intensity of the reflected seed light, to the light source generator.
Abstract:
A method for providing a semantic context according to an exemplary embodiment of the present invention may include: extracting at least one of address information and surrounding address information of the address information on the basis of a user's location; reading a social relationship list which is a list of people having a social relationship with a user; extracting information associated with people on the read social relationship list in a region corresponding to at least one of the extracted address information and the extracted surrounding address information; and providing the extracted information to the user.