Abstract:
Provided is a base station. The base station includes a transceiver, a frequency allocation unit, and an orthogonal code allocation unit. The transceiver communicates with a terminal. The frequency allocation unit allocates a frequency resource to the terminal through the transceiver. The orthogonal code allocation unit generates an orthogonal code index table including a plurality of orthogonal code combinations, and allocates one of the orthogonal code combinations included in the orthogonal code index table to each terminal, to which the frequency resource has been allocated for a service request of the terminal, through the transceiver not to multiply be allocated. At least one of a plurality of orthogonal codes included in the orthogonal code combination is orthogonal to at least one of a plurality of orthogonal codes included in an orthogonal code combination allocated to another terminal.
Abstract:
There are provided an optical lens and a light source module, and a street lamp having the same. The optical lens includes a concave dome shaped inner surface formed to have a similarly-oval shaped lower surface, and formed to include a plurality of light incident surfaces formed to be stepped along the inner surface thereof and stepped surfaces connecting the plurality of light incident surfaces to one another; and an outer surface formed to surround the inner surface.
Abstract:
The present invention relates to a graft copolymer for a transparent thermoplastic polyurethane resin prepared by graft copolymerization of (a) 50-85 weight % of rubber latex having a multi-layered structure composed of an inner layer and an outer layer comprising a conjugated diene monomer and an ethylenically unsaturated aromatic compound in which the refractive index of the inner layer is greater than that of the outer layer; and (b) 15-50 weight % of a C2-C20 vinyl monomer; a method for making same; and a thermoplastic polyurethane resin composition comprising same having excellent color properties, calendaring properties, low temperature impact strength and transparency.
Abstract:
A developing apparatus includes an organic photo conductor, an OPC frame part to support the organic photo conductor, a developing roller to develop a latent image formed on the organic photo conductor by supplying a developer, a developing roller frame part to support the developing roller, a developer storing part to store the developer and provided with a supplying opening through which the developer is supplied to the developing roller, a spacer removably interposed between the OPC frame part and the developing roller frame part and spacing the OPC frame part from the developing roller frame part such that the organic photo conductor and the developing roller do not contact each other, a leakage preventer removably attached to and sealing the supplying opening, and a connecting part to connect the spacer with the leakage preventer. Thus, the spacer and the leakage preventer are capable of being removed simultaneously.
Abstract:
A method of providing a call transfer service and a mobile terminal using the same are provided. When a call connection request signal transmitted to a mobile communication server through a PSTN is received, any one of previously stored phone numbers is selected and a service of transferring a call to the selected phone number according to the received call connection request signal is requested. Therefore, when call connection is requested, it is selected whether a call is to be transferred, when a call is transferred, a phone number to transfer a call can be dynamically selected according to a user situation, and thus user convenience according to call transfer can be improved.
Abstract:
A metal panel, a manufacturing method thereof and a cooking device using the metal panel capable of improving an external appearance of edges, enhancing efficiency of a manufacturing process and reducing the manufacturing cost. The manufacturing method of a metal panel includes cutting a metal plate to form a cutaway portion at a specified area of a border, bending the border on opposite sides of the cutaway portion, and coupling a bracket to a cutaway groove formed at the border by the bending.
Abstract:
A cooking apparatus and a method of controlling the same utilize the operations of measuring a temperature of a cooking chamber, and periodically turning on and off a convection fan, which circulates air in the cooking chamber, when the temperature of the cooking chamber reaches a target temperature.
Abstract:
A mobile communication terminal and an operation method thereof are provided. The terminal includes: a detachable display window detached from a main body, for performing short-range wireless communication with the main body; and the main body for performing the short-range wireless communication with the detachable display window, wherein the detachable display window has a liquid crystal display (LCD) wireless communicating unit for providing a wireless communication depending on a short-range wireless communication protocol, and a LCD for displaying the predetermined image.
Abstract:
An image forming apparatus includes: a main body, a photosensitive body spreading developer on a printing paper, a developing roller supplying the photosensitive body with the developer, a developer regulating member regulating the amount of the developer supplied for the photosensitive body by the developing roller, the developer regulating member comprising a supporting member coupled to the main body and an elastic metal board having a bent part extended from the supporting member and contacting with the photosensitive body, and a free length of the elastic metal board being adjusted shorter as a draw rate of the elastic metal board material increases. Accordingly, a developing cartridge and an image forming apparatus has a free length of a developer regulating member is adjustable to keep the density of developer uniform according to material characteristics of the developer regulating member.
Abstract:
A distillation system and method for recovering acetic acid from a feed stream containing acetic acid and water stream generated during terephthalic acid production. The invention includes a dehydration column utilizing azeotropic distillation to recover the acetic acid in conjunction with a condenser system to recover the energy.