Patent application number | Description | Published |
20080240285 | SEQUENCE GENERATING METHOD FOR EFFICIENT DETECTION AND METHOD FOR TRANSMITTING AND RECEIVING SIGNALS USING THE SAME - A sequence generation method for allowing a reception end to effectively detect a sequence used for a specific channel of an OFDM communication system, and a signal transmission/reception method using the same are disclosed. During the sequence generation, an index is selected from among the index set having the conjugate symmetry property between indexes, and a specific part corresponding to the frequency “0” is omitted from a transmitted signal. In addition, a reception end can calculate a cross-correlation value between a received (Rx) signal and each sequence using only one cross-correlation calculation based on the conjugate symmetry property. | 10-02-2008 |
20090310703 | SEQUENCE GENERATING METHOD FOR EFFICIENT DETECTION AND METHOD FOR TRANSMITTING AND RECEIVING SIGNALS USING THE SAME - A sequence generation method for allowing a reception end to effectively detect a sequence used for a specific channel of an OFDM communication system, and a signal transmission/reception method using the same are disclosed. During the sequence generation, an index is selected from among the index set having the conjugate symmetry property between indexes, and a specific part corresponding to the frequency “0” is omitted from a transmitted signal. In addition, a reception end can calculate a cross-correlation value between a received (Rx) signal and each sequence using only one cross-correlation calculation based on the conjugate symmetry property. | 12-17-2009 |
20100148349 | Semiconductor Package Having Support Chip And Fabrication Method Thereof - A semiconductor package having a support chip and a fabrication method thereof. The semiconductor package includes a circuit substrate having a conductive pattern on the top surface. A first semiconductor die is attached on top of the circuit substrate. A second semiconductor die is attached on top of the first semiconductor die. Each of the first and second semiconductor dies has a plurality of bond pads on the top surface. A support chip is attached on top of the first semiconductor die and has a plurality of bond pads provided on the top surface. The conductive wires electrically connect the first semiconductor die and the second semiconductor die to the circuit substrate, the second semiconductor die to the support chip, the bond pads of the support chip to each other, and the support chip to the circuit substrate. An encapsulant encloses, as in a capsule, the foregoing components. | 06-17-2010 |
20110002288 | METHOD AND APPARATUS FOR ALLOCATING RANGING CHANNEL IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus of allocating a ranging channel in a wireless communication system is provided. A base station (BS) allocates at least one first ranging channel, having a first structure, and at least one second ranging channel, having a second structure, to a ranging subframe. The first structure or the second structure can be one of the ranging channel structures of an IEEE 802.16e system. A number of orthogonal frequency division multiplexing (OFDM) symbols included in the first structure and a number of OFDM symbols included in the second structure differs from each other. And a guard time including at least one OFDM symbol is allocated between the at least one first ranging channel and the at least one second ranging channel. | 01-06-2011 |
20110007627 | METHOD AND APPARATUS FOR GENERATING RANGING PREAMBLE CODE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus of generating a ranging preamble code in a wireless communication system is provided. A mobile station (MS) generates one of a plurality of ranging preamble codes, wherein the plurality of ranging preamble codes are based on a padded Zadoff-Chu (ZC) sequence to which a cyclic shift is applied in a unit of N | 01-13-2011 |
20110013715 | METHOD FOR SETTING CYCLIC SHIFT CONSIDERING FREQUENCY OFFSET - A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)-applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate. And, if a sequence of the cyclic shift (CS) is allocated to a cell having a frequency offset of more than a predetermined level, the present invention can minimize the influence of a frequency offset on a high-mobility cell. | 01-20-2011 |
20110013720 | METHOD AND APPARATUS FOR GENERATING RANGING PREAMBLE CODE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus of generating a ranging preamble code in a wireless communication system is provided. A mobile station (MS) receives ranging channel information, and generates the ranging preamble code by selecting one of a plurality of candidate ranging preamble codes based on the ranging channel information. The plurality of candidate ranging preamble codes are based on a Zadoff-Chu (ZC) sequence of which a length is N | 01-20-2011 |
20110032855 | METHOD OF COMMUNICATING ACCORDING TO TIME DIVISION DUPLEX - The present invention provides a method of performing communication using a TDD (Time Division Duplex) mode, the method comprising receiving, from a second system, TDD frame configuration information of the second system, which comprises information on punctured symbol, the information on punctured symbol to be obtained based on TDD frame configuration information of a first system and operating based on the received TDD frame configuration information of the second system. | 02-10-2011 |
20110044312 | METHOD AND APPARATUS FOR GENERATING RANGING SIGNAL IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus of generating a ranging signal in a wireless communication system is provided. A mobile station (MS) generates a ranging code in which a covering code has been applied to each of a plurality of orthogonal frequency division multiple access (OFDMA) symbols, and maps the ranging code to a plurality of subcarriers constituting each of the OFDMA symbols. The ranging signal is generated by performing OFDMA modulation on each of the OFDMA symbols. | 02-24-2011 |
20110051688 | METHOD AND APPARATUS FOR ALLOCATING RANGING CHANNEL FOR SYNCHRONIZED MOBILE STATION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for allocating a ranging channel for a synchronized mobile station in a wireless communication system is provided. A base station (BS) allocates the ranging channel for the synchronized mobile station in a first subframe and a first subband. An index of the first subframe and an index of the first subband are determined respectively based on an index of a second subframe and an index of a second subband in which a ranging channel of a non-synchronized mobile station is allocated. | 03-03-2011 |
20110061729 | Solar Cell and Method of Manufacturing the Same - Provided are a solar cell and a method of manufacturing the same. The method includes implanting impurities of a second conductivity type opposite to a first conductivity type on the entire surface of a semiconductor substrate of the first conductivity type to form an emitter layer, forming a first anti-reflective coating (ARC) layer on the emitter layer, patterning a portion of the first anti-reflective coating (ARC) layer where a front electrode will be formed, forming a second anti-reflective coating (ARC) layer on the first anti-reflective coating (ARC) layer and the emitter layer, and forming the front electrode and a rear electrode on front and rear surfaces of the semiconductor substrate. In this method, a double structure of two anti-reflective coating (ARC) layers with different thicknesses may be formed to make electrode patterns distinct, thereby facilitating alignment of electrodes. | 03-17-2011 |
20110069672 | METHOD FOR UPLINK TRANSMISSION OF CONTROL INFORMATION IN MOBILE COMMUNICATION SYSTEM - A method for uplink transmitting control information in a mobile communication system is disclosed. A method for uplink transmitting control information in a mobile communication system includes receiving control channel configuration information for indicating a first period about a time interval in which a control channel is repeatedly allocated and a second period about a time interval in which the control channel is repeatedly allocated in accordance with the first period, generating a control channel at a predetermined position in a time-frequency resource region for uplink transmission in consideration of the first period and the second period, and transmitting control information through the generated control channel. | 03-24-2011 |
20110103219 | METHOD AND APPARATUS FOR GENERATING RANGING PREAMBLE CODE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus of generating a ranging preamble code in a wireless communication system comprises generating a Zadoff-Chu (ZC) sequence in which a cyclic shift is applied to each of a plurality of orthogonal frequency division multiple access (OFDMA) symbols as a ranging preamble code, wherein the cyclic shift is applied for each OFDMA symbol. | 05-05-2011 |
20110134968 | METHOD AND APPARATUS FOR INFORMATION TRANSMISSION IN A RADIO COMMUNICATION SYSTEM - The present invention relates to a method and an apparatus for information transmission in a radio communication system. The method includes the steps of creating a first symbol and a second symbol relevant to information, creating a first transmission vector and a second transmission vector on the basis of Alamouti code from the first symbol and the second symbol, and transmitting the first transmission vector via a first antenna and transmitting the second transmission vector via a second antenna. | 06-09-2011 |
20110218002 | APPARATUS AND METHOD FOR CONTROLLING UPLINK INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM - An apparatus and a method for controlling uplink interference in a wireless communication system. The method for controlling the uplink interference includes determining at least one interference signal power threshold determined by at least one neighbor Base Station (BS). The method also includes determining a transmit power offset for at least one serviced Mobile Station (MS) using the at least one interference signal power threshold. The method further includes sending the transmit power offset for the at least one MS to the at least one MS. | 09-08-2011 |
20110277824 | Solar Cell and Method of Manufacturing the Same - Provided are a solar cell and a method of manufacturing the same. The method includes implanting impurities of a second conductivity type opposite to a first conductivity type into a front surface of a semiconductor substrate of the first conductivity type to form an emitter layer, forming a mask layer on the emitter layer, patterning the mask layer by coating etching paste on a portion of the mask layer where a front electrode will be formed, implanting high-concentration impurities into the portion of the mask layer where the front electrode will be formed to form a heavily doped region, removing the remaining mask layer, forming an anti-reflective coating (ARC) on the emitter layer, forming the front electrode on the front surface of the semiconductor substrate, and forming a rear electrode on a rear surface of the semiconductor substrate. In the method of manufacturing the solar cell, the patterning of the front surface of the semiconductor substrate includes directly coating a corrosive emulsion on the mask layer using a screen printing process instead of complicated photolithography and etching processes so that a desired pattern can be formed using a relatively simple process. | 11-17-2011 |
20120045011 | METHOD FOR SETTING CYCLIC SHIFT CONSIDERING FREQUENCY OFFSET - A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)-applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate. And, if a sequence of the cyclic shift (CS) is allocated to a cell having a frequency offset of more than a predetermined level, the present invention can minimize the influence of a frequency offset on a high-mobility cell. | 02-23-2012 |
20120090682 | Solar Cell and Manufacturing Method Thereof - A solar cell and a manufacturing method thereof are provided. The method includes forming a microstructure including a texturing on the surface of a semiconductor substrate of a first conductive type, forming a plurality of nanostructures on the surface of the semiconductor substrate, forming an emitter layer by implanting impurities of a second conductive type opposite to the first conductive type in a front face of the semiconductor substrate, forming an anti-reflective coating (ARC) on the emitter layer, forming a front electrode passing through a portion of the ARC and being coupled to the emitter layer, and forming a back electrode on a rear face of the semiconductor substrate of the first conductive type, the rear face being opposite to the face on which the front electrode is formed. A dominant light-collecting characteristic can be approached by forming nanostructures on a semiconductor substrate of a solar cell. | 04-19-2012 |
20120163348 | SEQUENCE GENERATING METHOD FOR EFFICIENT DETECTION AND METHOD FOR TRANSMITTING AND RECEIVING SIGNALS USING THE SAME - A sequence generation method for allowing a reception end to effectively detect a sequence used for a specific channel of an OFDM communication system, and a signal transmission/reception method using the same are disclosed. During the sequence generation, an index is selected from among the index set having the conjugate symmetry property between indexes, and a specific part corresponding to the frequency “0” is omitted from a transmitted signal. In addition, a reception end can calculate a cross-correlation value between a received (Rx) signal and each sequence using only one cross-correlation calculation based on the conjugate symmetry property. | 06-28-2012 |
20140029602 | SEQUENCE GENERATING METHOD FOR EFFICIENT DETECTION AND METHOD FOR TRANSMITTING AND RECEIVING SIGNALS USING THE SAME - A sequence generation method for allowing a reception end to effectively detect a sequence used for a specific channel of an OFDM communication system, and a signal transmission/reception method using the same are disclosed. During the sequence generation, an index is selected from among the index set having the conjugate symmetry property between indexes, and a specific part corresponding to the frequency “0” is omitted from a transmitted signal. In addition, a reception end can calculate a cross-correlation value between a received (Rx) signal and each sequence using only one cross-correlation calculation based on the conjugate symmetry property. | 01-30-2014 |
20140078719 | DISPLAY MODULE OF DISPLAY DEVICE - A display module of a display device includes a display panel, a middle frame configured to seat and fix the display panel, an upper receiving frame including a front part covering an edge part of an upper surface of the display panel and a side part covering the side surfaces of the display panel and the middle frame and a one-sided conductive rubber pad located between the upper receiving frame and the display panel. The one-sided conductive rubber pad includes a conductive first surface and a non-conductive second surface facing each other, the first surface faces the display panel, and the second surface is in contact with the upper receiving frame. | 03-20-2014 |
20140083846 | WATER TREATMENT APPARATUS AND METHOD FOR CONTROLLING WATER TREATMENT APPARATUS - Provided are water treatment apparatus and method for controlling water treatment apparatus. The water treatment apparatus includes a filtering unit including a deionizing filter removing total dissolved solids contained in inflow water by an application of power, a water output unit outputting water filtered by the filtering unit; and a control unit controlling power that is applied to the deionizing filter to control total dissolved solids (TDS) contained in water filtered by the deionizing filter, or a reduction rate of total dissolved solids by the deionizing filter. | 03-27-2014 |
20140102902 | APPARATUS AND METHOD FOR CONTROLLING TOTAL DISSOLVED SOLIDS, AND WATER TREATMENT APPARATUS INCLUDING THE SAME - Provided are apparatus and method for controlling total dissolved solids, and water treatment apparatus including apparatus for controlling total dissolved solids. The total dissolved solid controlling apparatus includes, a filtering unit including a deionizing filter removing dissolved solids from inflow raw water by an input current and, a control unit controlling the input current such that water discharged from the deionizing filter corresponds to target total dissolved solids. | 04-17-2014 |
20140158327 | WATER COOLING APPARATUS - A water cooling apparatus is disposed outside an electronic apparatus equipped with a heat generating part to cool heat generated from the heat generating part by using a coolant. The water cooling apparatus includes a plurality of hollow tubes through which the coolant receiving the heat of the heat generating part flows to be cooled. Each hollow tube is formed in a shape of a quadratic curve. The water cooling apparatus further includes at least one radiator that includes a plurality of heat dissipation fins coupled to the plurality of hollow tubes and is arranged to be separated from each other along the plurality of hollow tubes. | 06-12-2014 |
20140158539 | ACTIVE REGENERATION METHOD FOR DEIONIZATION MODULE AND WATER TREATMENT APPARATUS USING THE SAME - There are provided an active regeneration method for a deionization module, and a water treatment apparatus using the same. The water treatment apparatus may include: a power applying unit applying power to the deionization module in order to perform a regeneration process a regeneration parameter measuring unit measuring a regeneration parameter of the deionization module when the power is applied; and a controlling unit terminating the regeneration process, based on the measured regeneration parameter. | 06-12-2014 |
20140185724 | SEQUENCE GENERATING METHOD FOR EFFICIENT DETECTION AND METHOD FOR TRANSMITTING AND RECEIVING SIGNALS USING THE SAME - A sequence generation method for allowing a reception end to effectively detect a sequence used for a specific channel of an OFDM communication system, and a signal transmission/reception method using the same are disclosed. During the sequence generation, an index is selected from among the index set having the conjugate symmetry property between indexes, and a specific part corresponding to the frequency “0” is omitted from a transmitted signal. In addition, a reception end can calculate a cross-correlation value between a received (Rx) signal and each sequence using only one cross-correlation calculation based on the conjugate symmetry property. | 07-03-2014 |
20140334921 | PUMP FOR WATER COOLER - A pump for a water cooler is positioned inside or outside an electronic device having heating parts in order to cool heat generated by the heating parts via a circulating refrigerant. | 11-13-2014 |
20140351652 | METHOD FOR DETERMINING SOFTWARE ERROR IN VIRTUALIZATION BASED INTEGRATED CONTROL SYSTEM - A method for determining software errors in a virtualization-based integrated control system detects software errors for each partition (software of a vehicle controller) and recovers automatically. Thus, system reliability, which is an advantage of virtualization techniques, can be further enhanced, thereby providing an operator with stability, and software errors can be easily addressed by writing error information. | 11-27-2014 |
20140373728 | Roaster - Disclosed herein is a food roasting apparatus. The food roasting apparatus includes: a main body ( | 12-25-2014 |