Patent application number | Description | Published |
20080287140 | Network Based Location Measurement Method and System Using Pcell Database - The present invention provides a network-based location measurement method using a pCELL database, comprising the steps of establishing a pCELL database in which a location measurement service target area is divided into lattices each having a predetermined size; continuously determining whether a request for location measurement occurs by a service subscriber; and, when the request for location measurement is generated, comparing fundamental information received from a mobile terminal with the pCELL database, determining a matching pCELL, and reporting the pCELL to the service requester. Furthermore, the present invention is constructed to periodically update a initially established pCELL database using the results of A-GPS-based location measurement and reflect variation in BTSs within a mobile communication network to the pCELL database, thereby always maintaining the optimal databae. The present invention contributes to the activation of location-based services by resolving problems related to stability of location measurement due to relays, and the degrading of accuracy of location measurement in a network-based location measurement method in a mobile communication system. Furthermore, the present invention improves the service usage rate of indoor subscribers, occupying about 70% of overall location measurement attempts and service quality and minimizes the need for human and physical resources upon initial commercialization and optimization by resolving the problem due to the considerable amount of human and physical resources required upon initial commercialization and optimization. Therefore, it is possible to replace A-GPS-based location measurement with relatively small costs. | 11-20-2008 |
20080291198 | METHOD OF PERFORMING 3D GRAPHICS GEOMETRIC TRANSFORMATION USING PARALLEL PROCESSOR - Provided is a method of performing three-dimensional (3D) graphics geometric transformation using a parallel processor having a plurality of Processing Elements (PEs). The method includes performing model/view transformation and projection transformation on a first group of vertex vectors using the parallel processor; calculating a value used for quaternion correction of the first group of vertex vectors using a general-use processor, and simultaneously performing model/view transformation and projection transformation on a second group of vertex vectors; performing quaternion correction and screen mapping on the first group of vertex vectors, and simultaneously calculating a value used for quaternion correction of the second group of vertex vectors using the general-use processor; and performing quaternion correction and screen mapping on the second group of vertex vectors. | 11-27-2008 |
20090052512 | LINK ADAPTATION SYSTEM USING DOPPLER FREQUENCY AND METHOD USING THE SAME - A link adaptation system using a Doppler frequency is provided. The link adaptation system includes: a Doppler frequency estimation unit to estimate a Doppler frequency of a signal transmitted via a wireless channel; a Signal to Noise Ratio (SNR) measurement interval determination unit to determine an SNR measurement interval of the signal transmitted via the wireless channel based on the estimated Doppler frequency; and an SNR measurement unit to measure an SNR of the signal based on the determined SNR measurement interval. | 02-26-2009 |
20090085193 | Heat-releasing printed circuit board and semiconductor chip package - A heat-releasing printed circuit board and semiconductor chip package are disclosed. The heat-releasing printed circuit board includes an insulation layer, on a surface of which a circuit pattern is formed, and a solder resist, which is stacked on the insulation layer, where the solder resist contains carbon nanotubes. The heat-releasing printed circuit board allows the heat generated in a semiconductor chip to be dispersed in several directions of the board or package, to improve heat-releasing property. | 04-02-2009 |
20100044630 | TiO2-xNx Nanotubes and Method for Preparing the Same | 02-25-2010 |
20100132982 | Package substrate including solder resist layer having pattern parts and method of fabricating the same - Disclosed is a package substrate including a solder resist layer having pattern parts and a method of fabricating the same, in which the pattern parts are formed on the solder resist layer, thus increasing heat dissipation efficiency and minimizing the warpage of the substrate. | 06-03-2010 |
20110058506 | DEVICE AND METHOD FOR TRANSMITTING CHANNEL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - This invention relates to a device and a method for transmitting channel information in a wireless communication system. The disclosed device and method are characterized by: estimating channels by dividing the channel matrix elements for a complex channel into a real number part and an imaginary number part; quantizing each channel which is estimated through the division into the real and imaginary number parts based on a preset boundary value; generating the channel information corresponding to the quantization value for the real and imaginary number parts of the channel matrix elements; and transmitting the generated channel information to a transmitter. | 03-10-2011 |
20110127150 | Jog key of portable terminal and operation method thereof - A jog key of a portable terminal and an operation method thereof. The portable terminal includes a jog key for inputting a direction signal, a push signal, or a pull signal. A storage unit stores a key map for mapping a specific function to an operation signal of the jog key. And a control unit senses an input of the operation signal of the jog key and executes a function mapped to the input operation signal of the jog key. This may provide various functions using a jog key to improve convenience of a user. | 06-02-2011 |
20110174011 | VENTILATING DEVICE AND OUTDOOR UNIT HAVING THE SAME - A ventilating device and an outdoor unit including the same are disclosed. More particularly, the present invention relates to a ventilating device including a counter-rotating fan having improved wind ventilation efficiency as well as minimized noise generated during the fan operation. | 07-21-2011 |
20120042952 | SILICON SOLAR CELL COMPRISING A CARBON NANOTUBE LAYER - A silicon solar cell including a carbon nanotube layer is provided. The carbon nanotube layer is disposed on at least one of front and back surfaces of a p-n junction silicon substrate which includes a p-type silicon layer and an n-type silicon layer. Accordingly, the intensity of the electric field applied to devices may be increased due to introduction of the carbon nanotube layer, resulting in improved photoelectric conversion efficiency. | 02-23-2012 |
20120062181 | APPARATUS AND METHOD FOR CHARGING OF BATTERY IN PORTABLE TERMINAL - An apparatus and method for charging of a battery in a portable terminal. The apparatus includes a charge management unit and a controller. The charge management unit determines a predefined charge threshold value and a battery voltage, compares the battery voltage with the threshold value, and determines if the battery voltage is suitable for normal operation of the portable terminal. If it is determined by the charge management unit that the battery voltage is not suitable for normal operation, the controller sends a power supply request to an external device. | 03-15-2012 |
20120110401 | SYSTEM AND METHOD OF SENSING DATA IN A SEMICONDUCTOR DEVICE - A semiconductor memory apparatus includes: a first data counting unit configured to count respective programming levels of a plurality of input data and output a plurality of first data counting codes having a code value corresponding to the number of respective programming levels; a data read unit configured to sense data stored in a memory block having the plurality of input data programmed therein, based on a voltage level of a plurality of read bias signals, and output the sensed result as a plurality of output data; a second data counting unit configured to count respective programming levels of the plurality of output data and output a plurality of second data counting codes having a code value corresponding to the number of respective programming levels; a read bias control unit configured to compare the plurality of first data counting codes with the plurality of second data counting codes and output a bias control code having a code value corresponding to the comparison result; and a read bias generating unit configured to generate the plurality of read bias signals whose voltage levels are adjusted based on the code value of the bias control code. | 05-03-2012 |
20130017956 | METHOD OF FORMING SUPERCONDUCTING WIREAANM Yoo; Sang ImAACI SeoulAACO KRAAGP Yoo; Sang Im Seoul KRAANM Lee; Jung-WooAACI SeoulAACO KRAAGP Lee; Jung-Woo Seoul KR - Methods of forming a superconducting wire are provided. The method may include dissolving a superconducting material in an acid not including fluorine to form a superconducting precursor solution, providing the superconducting precursor solution on a substrate to form a superconducting precursor layer, and controlling an oxygen partial pressure of a processing chamber provided with the substrate and/or a temperature of the substrate in order that the superconducting precursor layer partially have a liquid phase, thereby forming an epitaxial superconducting layer on the substrate. | 01-17-2013 |
20130151061 | CLEANING ROBOT AND UNDERWATER SEDIMENT CLEANING APPARATUS AND METHOD - A cleaning robot capable of cleaning a water tank in an unmanned manner and an underwater sediment cleaning apparatus and method are provided. The cleaning robot includes a body put into a water tank, a driver supporting the body and moving the body, a suction part arranged in front of the body and sucking contaminated water containing sediment in the water tank, and a tilting part supported by the body to support the suction part and rotating the suction part on an axis corresponding to the direction across the moving direction of the body. | 06-13-2013 |
20130215987 | MIMO SYSTEM AND METHOD OF GENERATING HIERARCHICAL CODEBOOK THEREFOR - Disclosed is a multiple-input multiple-output (MIMO) system including a transmitting end and a receiving end, wherein the transmitting end includes: a hierarchical codebook in which at least one base codebook is designated as the upper matrix and a child codebook generated based on a chordal distance between respective codewords configuring the base codebook is designated as the lower matrix; a scheduler configured to receive channel state information from the receiving end and select precoding matrices from the hierarchical codebook based on the channel state information; and a precoder configured to apply the precoding matrices selected in the scheduler to data to be transmitted to the receiving end and transmit the selected precoding matrices through a plurality of antennas. | 08-22-2013 |
20140055079 | BATTERY PACK, BATTERY APPARATUS INCLUDING THE SAME, AND CELL BALANCING METHOD THEREOF - A battery pack includes: a cell module including a plurality of battery cells; an antenna connected to each of the battery cells; and a waveguide installed at one side of the cell module and having the antenna housed therein. | 02-27-2014 |
20140055096 | BATTERY PACK, BATTERY APPARATUS INCLUDING THE SAME, AND CELL BALANCING METHOD THEREOF - A battery pack includes: a cell module including a plurality of battery cells; and a coil unit installed on one side of the cell module and having coils stacked therein, the coils being connected to the respective battery cells. | 02-27-2014 |
20140297367 | SMART DESIGN SYSTEM PROVIDING MOBILE APPLICATION DESIGN AND SIMULATION FUNCTION, BUSINESS MODEL HAVING THE SAME, AND OPERATING METHOD OF SMART DESIGN SYSTEM - A smart design system provides a mobile application design and a simulation function, a business model including the smart design system, and a method of operating the smart design system. A method of operating a smart design system includes selecting at least one product of a plurality of products by searching a database storing information related to the plurality of products. The method includes designing an application that includes the selected at least one product. The designing may be used to produce the application. The method includes providing at least one recommended product of the plurality of products. The recommended product is applicable to the application. The method includes providing a market trend analysis. The market trend analysis is generated by searching for information related to a market trend of at least one of the plurality of products applicable to the application. | 10-02-2014 |