Patent application number | Description | Published |
20100011046 | APPARATUS AND METHOD FOR VARIABLE FAST FOURIER TRANSFORM - The present invention relates to an apparatus and method for variable fast Fourier transform. According to an embodiment of the present invention, two n-point fast Fourier transform (FFT) processors are used to generate two n-point FFT output data or one | 01-14-2010 |
20100019888 | APPARATUS AND METHOD FOR PROVIDING URL, MOBILE STATION, AND METHOD FOR ACCESSING INTERNET BY USING THE PROVIDED URL - The present invention relates to a URL providing apparatus and a method thereof, and a mobile station that accesses the Internet by using the provided URL, and an Internet access method thereof. The mobile station attaches an RF-ID tag that stores an RF-ID tag value corresponding to identification information of the mobile station thereto, and thus when a user brings the mobile station into an interrogation range of an RF-ID reader included in the URL providing apparatus, the URL providing apparatus receives the corresponding RF-ID tag value from the RF-ID reader. When the URL providing apparatus acquires an IP address of the mobile station by using the received RF-ID tag value and provides a URL to the mobile station by using the acquired IP address, the mobile station automatically accesses the Internet by using the URL. Such an Internet access method can minimize additional cost of the mobile station and simplify an Internet access process to a specific URL. | 01-28-2010 |
20100046431 | FAST UPLINK RANGING SYSTEM AND METHOD IN MOBILE COMMUNICATION SYSTEM - The present invention relates to a fast uplink ranging system and method in a mobile communication system. According to the present invention, a fast uplink ranging system transmits two pairs of ranging codes having the same value at locations spaced by half of FFT pointers. The fast uplink ranging system calculates a correlation value using the received two pairs of ranging codes. An order in which complex exponential twiddle factors for removing complex exponential terms corresponding to a time delay are searched is determined using the correlation value. Therefore, it is possible to reduce a time required for searching a timing error of a terminal using non-periodic symmetry of complex exponential twiddle factors corresponding to the timing error, compared with a known method of searching a complex exponential twiddle factor. | 02-25-2010 |
20100082172 | LOAD FORECASTING ANALYSIS SYSTEM FOR CALCULATING CUSTOMER BASELINE LOAD - A load forecasting analysis system for calculating a customer baseline load (CBL). The load forecasting analysis system includes a CBL forecaster for receiving a load profile and providing a CBL forecasting method, a period selector for selecting conditions used to calculate the CBL using the load profile, a CBL processor for calculating a forecasting value by forecasting the CBL using the CBL forecasting method according to the load profile and the conditions, and a CBL determiner for calculating an error value by comparing the load profile with the forecasting value. | 04-01-2010 |
20100106342 | DAY-AHEAD LOAD REDUCTION SYSTEM BASED ON CUSTOMER BASELINE LOAD - Provided is a day-ahead load reduction system based on a customer baseline load for inducing a user to efficiently manage energy consumption by applying an incentive (user compensation according to load reduction) to achieve load reduction and load decentralization. The day-ahead load reduction system based on a customer baseline load operates in connection with a provider terminal and a user terminal through a network to induce a reduction in the load of a user and includes an AMI/AMR translator collecting load profile data of the user in real time, converting the load profile data and storing the load profile data in a meter data warehouse; a meter data management system monitoring and analyzing the load profile data stored in the meter data warehouse in real time; a demand response operation system managing the demand of the user by using the load profile data and performing overall management, analysis and verification of a day-ahead load reduction event; a customer energy management system operating in connection with the demand response operation system and providing information on the load to the user through the user terminal in real time to allow the user to control the load; and an account system operating in connection with the demand response operation system and the customer energy management system, calculating an incentive for the day-ahead load reduction event and notifying a provider and the user of the incentive through the provider terminal and the user terminal. | 04-29-2010 |
20100114475 | SYSTEM FOR POWER FACILITY NAVIGATION - A system for power facility navigation is disclosed. For rapid dispatch in the field service including power failure recovery and maintenance, the destination location can be set using various items such as pole numbers, computerization codes, customer names, trade names, equipment numbers and GIS coordinates. Destination location setting and path finding can be performed in order of priorities assigned to these items and in consideration of characteristics of field service activities. Location coordinates are received through a GPS receiver, coordinate conversion is performed according to a facility GIS coordinate system, and map matching is processed when GPS coordinates do not match facility GIS coordinates. The road network database is composed of linear array structures and the structure of a link is configured to include information regarding all other links connected to the start node and end node in a manner that link information and node attributes are integrated together. | 05-06-2010 |
20100144302 | METHOD AND APPARATUS FOR DETECTING SIGNAL - In a method for detecting a signal in a multi-input multi-output wireless communication system that receives signals transmitted through a plurality of transmission antennas by using a plurality of reception antennas, a detection order for detecting the transmission signals received through the reception antennas is determined on the basis of a cofactor determinant of components constituting a channel matrix representing characteristics of channels between the transmission antennas and the reception antennas. In addition, the transmission signal is detected from the signals received through the reception antennas in accordance with the determined detection order. | 06-10-2010 |
20100144381 | POWER CONTROL METHOD AND APPARATUS FOR INTER-CELL INTERFERENCE REMOVAL - A power control method performs a scheduling on user terminals and then allows the user terminals to calculate power of interference by neighboring sectors, generates interference information to indicate how much the base stations in neighboring sectors, which interfere with each other, reduce transmission power based on the calculated power of interference, and informs a serving base station thereof. The base stations calculate throughput gain and throughput loss based on the interference information, and determine whether the reduction of the transmission power is performed based on the calculated throughput gain and throughput loss. | 06-10-2010 |
20100153479 | APPARATUS FOR SETTING UP START POINT OF FAST FOURIER TRANSFORM AND METHOD THEREOF - Disclosed are a fast Fourier transform (FFT) start point setting apparatus, and a method thereof. An FFT start point according to a synchronization acquisition result is moved to a CP direction by a predetermined sample offset and perform FFT. | 06-17-2010 |
20100157896 | METHOD FOR GENERATING FRAME AND TRANSMITTING FRAME INFORMATION - The present invention relates to a frame generation and transmission method of a wireless communication system. The frame generation method includes dividing a frame into a plurality of subframes, allocating the respective subframes as one of a plurality of predefined modes, and allocating mode allocation information of the respective subframes to the frame information. | 06-24-2010 |
20100158173 | CHANNEL ESTIMATING METHOD IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF - Provided is a method and system for estimating a channel in a wireless communication system. An interference coefficient is calculated based on a known structure of a pilot, and a channel value in a frequency domain is estimated. A channel value in a time domain is obtained by transforming the channel value in the frequency domain and the channel delay values are subtracted from the channel value in the time domain, thereby cancelling interference. | 06-24-2010 |
20100248767 | RESOURCE ALLOCATION METHOD AND DEVICE - The present invention relates a resource allocation method and a resource allocation device. According to an exemplary embodiment of the present invention, a resource allocation method of a wireless communication system includes: allocating a resource to a first base station; determining whether or not a second cell that is smaller than a first cell is provided in a first cell region managed by the first base station; reducing the resource allocated to the first base station when the second cell is provided; and allocating resources remaining after reducing the resource to a second base station that manages the second cell. | 09-30-2010 |
20100290401 | METHOD OF TRANSMITTING SIGNAL - A method of transmitting a signal according to the present invention includes: receiving a signal that is encoded with a predetermined code rate and that is modulated by a first modulation method from a base station; creating a signal that is obtained by demodulating the signal that is modulated by the first modulation method using a method corresponding to the first modulation method; creating a signal that is obtained by modulating the demodulated signal using a second modulation method while maintaining the predetermined code rate; and transmitting the signal that is modulated by the second modulation to a mobile station. | 11-18-2010 |
20110136526 | APPARATUS AND METHOD FOR ALLOCATING MULTICAST CONNECTION INDETIFIER IN WIRELESS ACCESS SYSTEM - A base station for allocating an MCID includes: a first transmitting/receiving unit to exchange data with a content distribution network and to extract header information; a combining unit to construct the data on a frame basis; a second transmitting/receiving unit to exchange the frame with a subscriber terminal receiving the constructed frame and to receive a Multicast and Broadcast Service (MBS) channel connection request message; a first analyzing unit to extract attribute information of the data by analyzing the extracted header information and to analyze the type of the data; a second analyzing unit to extract channel information by analyzing the MBS channel connection request message; and a control unit to exchange an MBS burst reservation message with the content distribution network, to reserve/allocate an MBS burst region, to allocate an MCID to the data, and to manage the registration state of an MBS channel corresponding to the MCID. | 06-09-2011 |
20110145875 | MOBILE SET-TOP BOX AND METHOD FOR PROVIDING INTERNET PROTOCOL TELEVISION SERVICE USING THE SAME - Provided is a mobile set-top box. In the mobile set-top box, a demultiplexer processor separates first metadata from a transport stream corresponding to a broadcasting stream of which a destination is the mobile set-top box, and separates second metadata being transmitted via another channel, among a plurality of transport streams. A metadata processor unifies the first metadata and the second metadata and the image data transcoder processor transcodes image data included in the transport stream of the broadcasting stream into image data decodable by a user terminal. The metadata unified by the metadata processor and the transcoded image data are multiplexed by the multiplexer and then are transmitted to the user terminal. The mobile set-top box provides an Internet protocol television (IPTV) service to portable terminals of passengers boarding in a moving transportation means such as a bus, a train, and a ship. | 06-16-2011 |
20120127274 | APPARATUS AND METHOD FOR PROVIDING IMAGES IN WIRELESS COMMUNICATION SYSTEM AND PORTABLE DISPLAY APPARATUS AND METHOD FOR DISPLAYING IMAGES - A mobile communication system for displaying a three-dimensional (3D) image is provided. The mobile communication system includes an image providing apparatus to generate a first two-dimensional (2D) image Transport Stream (TS), and a second 2D image TS by capturing the same target in different directions, a Multicast Broadcast Service (MBS) server to control at least two base stations included in an MBS area to individually transmit the first 2D image TS and the second 2D image TS, and a portable display apparatus to receive the first 2D image TS and the second 2D image TS, to divide the first 2D image TS to and the second 2D image TS into first 2D image data and second 2D image data, respectively, and to display a 2D image or a 3D image based on an image quality of each of the first 2D image data and the second 2D image data. | 05-24-2012 |
20120163462 | MOTION ESTIMATION APPARATUS AND METHOD USING PREDICTION ALGORITHM BETWEEN MACROBLOCKS - Disclosed is a motion estimation apparatus and method using a prediction algorithm between macroblocks. In the motion estimation method, an average of a motion vector of a macroblock | 06-28-2012 |
20120281770 | REAL-SENSE COMMUNICATION TERMINAL AND REAL-SENSE COMMUNICATION METHOD USING THE SAME - A real-sense communication terminal may include: a sense communication sensor to sense information for a real-sense communication; a sense communication signal converting device to convert the sense information to a sense communication signal; a metadata processor to convert the sense communication signal to a metadata form of a transport stream; an image data processor to receive image data and to encode the received image data to be suitable for the transport stream; and a multiplexer processor to multiplex the encoded image data and the sense communication signal of the metadata form, and to thereby transmit the image data and the sense communication signal to a base station. | 11-08-2012 |
20120310581 | MEASUREMENT DEVICE FOR MINIMIZING EXTERNAL MAGNETIC DISTURBANCE - Provided is a ΔE measuring device minimizing external magnetic disturbance, more particularly, a ΔE measuring device measuring a change (ΔE) in elastic modulus under a magnetic field by removing a bias effect by the earth's magnetic field and a magnetic tool and device and using a magneto acoustic resonance method. With the ΔE measuring device, a space minimizing external magnetic disturbance using three-axis Helmholtz coils is provided and the ΔE measuring device having a plurality of coil structures is inserted into the space, thereby making it possible to minimize external magnetic field disturbance. | 12-06-2012 |
20130177086 | FINE MOTION ESTIMATION DEVICE FOR HIGH RESOLUTION - Disclosed is a fine motion estimation device for high resolution including: a previous picture storage memory in which search area data of previous pictures for macroblocks of current pictures are stored; an FIR filter configured to perform FIR filtering on the search area data stored in the previous picture storage memory; a memory configured to differentiate and store the FIR filtered search area data; a QME data processing unit configured to generate reference area data for motion estimation in a ¼ pixel unit; a processing array unit configured to perform motion estimation in a ½ pixel unit and the macroblocks transmitted from the FIR filter and motion estimation in the ¼ pixel unit; and a control unit configured to control operations of the FIR filter, the processing array unit, and the QME data processing unit. | 07-11-2013 |
20130237143 | APPARATUS FOR CONFIGURING RADIO ACCESS OVERLAY BROADCAST NETWORK - An apparatus for configuring an overlay broadcast network is provided. The apparatus includes: an overlay broadcast server that receives broadcast contents information from a contents server, receives traffic information from a plurality of heterogeneous radio access network, and configures an overlay broadcast network by overlaying the plurality of heterogeneous radio access networks based on the broadcast contents information and the traffic information. The present invention can secure a technology for distributing the load distribution of traffic, securing the broadcast quality by reducing the interference signals, transmitting the multi-screen contents by configuring the overlay broadcast network integrating and using each radio access network under the environment in which various radio access networks are present, increase the frequency use efficiency of the overall radio access network, and save the broadcast communication costs of the user due to the introduction of a virtual mobile communication network provider. | 09-12-2013 |
20140086126 | METHOD AND APPARATUS FOR CONTROLLING SIGNAL TRANSMISSION OF WIRELESS COMMUNICATION SYSTEM - A base station broadcasts information of an entire discontinuous signal transmission duration and information of a discontinuous signal transmission interval to a plurality of terminals, and stops transmission of a downlink control signal and data for at least some interval of the discontinuous signal transmission interval. | 03-27-2014 |
20140092839 | METHOD OF PROVIDING HARQ FEEDBACK INFORMATION - In a wireless communication system where a terminal and a base station communicate with each other using a frame including at least one downlink sub-frame and at least one uplink sub-frame, the terminal and the base station calculate the number of hybrid automatic repeat request (HARQ) feedback regions of the downlink sub-frames and the uplink sub-frames in accordance with a third value corresponding to an absolute value of subtraction between a first value corresponding to the number of downlink sub-frames of the frame and a second value corresponding to the number of uplink sub-frames of the frame or the sum of the first value and the second value and configure HARQ feedback regions in the downlink sub-frames and the uplink sub-frames. | 04-03-2014 |
20140123197 | IPTV SERVICE DEVICE AND METHOD FOR PROVIDING CONTINUOUS SERVICE - The present invention relates to an IPTV service device and method for providing continuous service. The method according to one embodiment of the present invention comprises: a service-request receiving step of receiving an IPTV service request from a user of an IPTV terminal; a service-confirming step of confirming whether or not the IPTV service has previously been stopped in response to the IPTV service request; and an IPTV-service providing step of providing the IPTV service to the IPTV terminal from the point at which service was stopped if the IPTV service has previously been stopped. | 05-01-2014 |
20140336850 | DEDICATED CHANNEL ESTABLISHMENT METHOD FOR HIGH SPEED DATA TRANSMISSION IN RAILWAY WIRELESS SENSOR NETWORK - Disclosed is a railway wireless sensor network system. The railway wireless sensor network system includes a plurality of sensors which are included in a railway vehicle and measure an operation state of the railway vehicle in real time, a plurality of routers which receive information on the measured operation state through a dedicated channel with each sensor, and a gateway which receives information on the operation state through a dedicated channel between the routers, and periodically transmits information on the received operation state to a railway vehicle control center. | 11-13-2014 |