Abstract: The present invention relates to an apparatus and method for performing adjustment to optimize the voltage for each distribution network in a power distribution system. The apparatus for adjusting a voltage in the power distribution system adjusts the voltage by switching a switch that lies on a path in the power distribution system. The apparatus determines a switch that is to become a switching target from among switches lying on the path, obtains a voltage optimization value of the determined switching target switch, selects a switch having the minimum voltage optimization value by changing the switching target switch to another switch in order to obtain the voltage optimization value, and adjusts the voltage through switching of the selected switch.

Abstract: Provided are an apparatus and method for minimizing a distribution loss which reconstructs the system construction of a distribution system in consideration of section load characteristics of mutually different distribution system. The apparatus for minimizing a distribution loss which determines a loss calculation period for detecting a loss minimization time point using mutually different distribution systems, calculates loss values of mutually different distribution systems set according to each time point of the loss calculation period, and calculates a total loss value, and selects the mutually different distribution systems one by one during the loss calculation period, and calculates a loss value for specific systems of each distribution system in consideration of a change of a section load in each selected distribution system, determines a loss minimization time point using the specific system loss value of each distribution system and the total loss value.

Abstract: Provided are a hydroxy-terminated siloxane, a polysiloxane-polycarbonate copolymer including same as a repeating unit, and a preparation method thereof. The hydroxyl-terminated siloxane has the structure of chemical formula 1.

Abstract: Provided are a hydroxy-terminated siloxane, a polysiloxane-polycarbonate copolymer including same as a repeating unit, and a preparation method thereof. The hydroxyl-terminated siloxane has the structure of chemical formula 1.

Abstract: Methods and transcoders are disclosed for video transcoding input macroblocks to an output macroblock. One of the methods estimates an output macroblock mode for the video transcoding. A spatial weight is determined based on size of overlapping areas of each of the input macroblocks with a correlation area that is correlated with the output macroblock. A discrete cosine transform (DCT) weight is determined based on a number of zero DCT coefficients of each of the input macroblocks that overlap the correlation area. The output macroblock mode is estimated based on the spatial weight and the DCT weight.

Abstract: A method of estimating output motion vector includes generating a group of candidate motion vectors, selecting two or more reference vectors, variably establishing a search window, and estimating an output motion vector by performing a motion vector refinement on the search window. The method selects the two or more reference vectors from the group of the candidate motion vectors and the search window is established according to a relativity among the reference vectors. A transcoder using the method includes an encoding parameter estimator configured to select the two or more reference vectors and to variably establish the search window according to the relativity between the reference vectors. Therefore, the search window may be efficiently established without increasing calculation time, so that the output motion vector may be more correctly estimated.

Abstract: A mobile terminal and system search method for the same are provided. The present invention enables a rapid system search with minimized battery consumption after a system loss. The system search method, using a search parameter specifying a first search time S0 and search periods (Do+S1) of a wait time Do and search time S1, includes performing, when the mobile terminal experiences a system loss, an initial system search to search for a system to use for the first search time S0 and increasing, when a system to use is found during the first search time S0, the first search time S0 to reset the search parameter.

Abstract: Coffee maker and microwave oven and method for controlling the same are provided. The coffee maker and microwave oven includes an outfit room for mounting various electric components on an inside thereof, a case at one side of the outfit room, a water tank in the case, a funnel having a filter placed thereon for extraction of coffee, a jug under the funnel for storage of extracted coffee, a water supply pipe having one end connected to the water tank, the other end position over the funnel, and a portion on a bottom of the case, and a heater assembly on the bottom of the case, the heater assembly having a heating heater for heating potable water passing through the water supply pipe, and a heat conservation heater for heating coffee in the jug to maintain a temperature of the coffee constant.

Abstract: Provided are a method for providing DMB service in a portable terminal and an apparatus employing the method. The method includes receiving and analyzing ESG data or EPG data, and characteristics of broadcast contents of respective channels are checked when a DMB view request event occurs. Contents of the respective channels are mapped with pre-stored images having the same characteristics as the checked characteristics. A list of the respective channels is displayed, and a selection of a certain channel is received from a user. An image mapped with contents of the certain channel is displayed until the contents of the certain channel are received.

Abstract: Coffee maker and microwave oven and method for controlling the same are disclosed. The coffee maker and microwave oven includes an outfit room for mounting various electric components on an inside thereof, a case at one side of the outfit room, a water tank in the case, a funnel having a filter placed thereon for extraction of coffee, a jug under the funnel for storage of extracted coffee, a water supply pipe having one end connected to the water tank, the other end position over the funnel, and a portion on a bottom of the case, and a heater assembly on the bottom of the case, the heater assembly having a heating heater for heating potable water passing through the water supply pipe, and a heat conservation heater for heating coffee in the jug to maintain a temperature of the coffee constant.

Abstract: Methods and transcoders are disclosed for video transcoding input macroblocks to an output macroblock. One of the methods estimates an output macroblock mode for the video transcoding. A spatial weight is determined based on size of overlapping areas of each of the input macroblocks with a correlation area that is correlated with the output macroblock. A discrete cosine transform (DCT) weight is determined based on a number of zero DCT coefficients of each of the input macroblocks that overlap the correlation area. The output macroblock mode is estimated based on the spatial weight and the DCT weight.

Abstract: A method of estimating output motion vector includes generating a group of candidate motion vectors, selecting two or more reference vectors, variably establishing a search window, and estimating an output motion vector by performing a motion vector refinement on the search window. The method selects the two or more reference vectors from the group of the candidate motion vectors and the search window is established according to a relativity among the reference vectors. A transcoder using the method includes an encoding parameter estimator configured to select the two or more reference vectors and to variably establish the search window according to the relativity between the reference vectors. Therefore, the search window may be efficiently established without increasing calculation time, so that the output motion vector may be more correctly estimated.

Abstract: An air circulation structure for a microwave oven is disclosed. The structure includes a fan for sucking air into the interior of a machinery compartment installed below a cooking chamber of the microwave oven, a bottom plate having an air suction port through which an air sucked by the fan and radiating heat generated from the electrical elements of the microwave oven is flown into the interior of the cooking chamber, and a rear surface plate having a first air discharge port through which the air passed through an air suction port formed on the bottom plate and circulated in the interior of the cooking chamber is discharged to the outside of the microwave oven, for thereby effectively radiating heat from electrical elements of a microwave oven having a machinery chamber installed below a cooking chamber and dehumidifying from the interior of the cooking chamber.

Abstract: This invention relates to an opening and closing apparatus for a door of a microwave oven which has lighting lamps. The door of the microwave oven is devised to have a predetermined time until it is opened in a course of power transmission by a driving motor by which the door is opened and closed. The driving motor rotates a driving gear and the driving gear makes an opening and closing lever move linearly. Accordingly the door which is locked with the main body of microwave oven can be opened by the linear motion of the opening and closing lever. Therefore, the door is opened after a predetermined time is passed by the fact that the power transmission from driving motor is delivered to the opening and closing lever through the driving gear so that the remaining light by the lighting lamps can be completely removed. This can prevent the user's eye being damaged by the remaining light and improve the value in use for the microwave oven with lighting lamps.

Abstract: A cooling device for halogen lamps in microwave ovens is disclosed. In a microwave oven, the halogen lamp is installed on the top wall of a cavity. The lamp is operated by electric power applied thereto through a sealing part provided at each end thereof. The lamp thus radiates heating light waves, having a predetermined wavelength, into the cavity. A light reflection plate surrounds and holds the halogen lamp while forming a lamp chamber on the top wall of the cavity and allows the light waves to be guided from the lamp into the cavity, with the sealing parts of the lamp being positioned outside the light reflection plate. A cooling device generates a cooling air current and guides the cooling air current to the sealing parts positioned outside the light reflection plate.

Abstract: A structure for mounting a magnetron for a microwave oven is disclosed. The structure includes a wave guide member engaged with a lower plate forming the bottom surface of a cooking chamber and guiding microwaves into the interior of the cooking chamber, and a magnetron mounted at one side of the wave guide member and providing microwaves into the interior of the wave guide member, whereby the microwaves are provided in the direction from the bottom surface of the cooking chamber to the interior of the cooking chamber, for thereby supplying the microwaves in the direction from the bottom surface of the cooking chamber into the interior of the cooking chamber.

Abstract: A microwave oven includes a cavity formed by a plurality of plates with inner surfaces thereof forming a cooking chamber, outer surfaces of the plates forming a casing of the microwave oven, a shielding plate forming a machine chamber underneath the cavity to provide therein a magnetron and a high voltage transformer, and a door attached to a side surface in the cavity and opening/shielding the cooking chamber to/from an exterior thereof. The microwave oven minimizes the size while maximizing the capacity of the cooking chamber, thereby decreasing the required plate number and production cost.

Abstract: A door for preventing leakage of electromagnetic wave of a microwave oven includes: a front panel forming a front surface of a door; a first contact surface expanded from the circumference of the front panel and recessed forward a cavity of the microwave oven so as to contact an entrance of the cavity; a door frame portion expanded from the circumference of the first contact surface and proceeding to the front surface of the door so as to form a frame of the door; a second contact surface expanded from the circumference of the door frame portion and recessed toward the cavity so as to contact a frame of the cavity entrance; a choke cavity formed between the door frame and the second contact surface; and a slit formed on the circumference of the door frame in a predetermined interval and expanded into the choke cavity in a predetermined length. Thus, leakage of the electromagnetic wave can be prevented due to the slit shape of a predetermined period.