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| 20100138928 | APPARATUS AND METHOD FOR SHARING CONTENT BETWEEN DEVICES BY USING DOMAIN DRM - An apparatus for sharing content between devices by using a domain digital rights management (DRM) includes: a domain management unit for performing management of a domain within a specific area and registration of users and user devices; a user management unit for managing information about the users of the domain registered by the domain management unit; and a device management unit for managing domain clients of the domain registered by the domain management unit. The apparatus further includes a DRM management unit that has DRM information that supports the domain created through the domain management unit and update information about each DRM, and relays such that DRM content stored in each domain client is converted into domain DRM content and domain DRM license. | 06-03-2010 |
| 20100161781 | APPARATUS AND METHOD FOR DIGITAL HOME DOMAIN MANAGEMENT - An apparatus for digital home domain management includes a home domain server which manages in one user domain all user terminals within a home group and provides each user terminal with a domain license in contents; and a DRM coupler which provides the contents and domain licenses converted to conform to a DRM type loaded in user terminals if contents sharing is requested among user terminals loaded with different DRMs within the home group. | 06-24-2010 |
| 20100250439 | APPARATUS AND METHOD FOR PROTECTING CONTENTS STREAMED THROUGH RE-TRANSMISSION - An apparatus for protecting contents streamed through re-transmission, includes a content service site for servicing a content, managing end user and re-sender re-transmitting the content streamed from the content service site to another user, and issuing and managing a re-transmission license and a content license. The end user pays a charge to the content service site, receives an issued license from the content service site, and uses the content received from the re-sender through re-transmission. | 09-30-2010 |
| 20100329639 | APPARATUS AND METHOD FOR PROTECTING COPYRIGHT FOR MOTION PICTURE AND RECORD MEDIUM - Provided are an apparatus and method for processing motion picture and a record medium, which decompose a motion picture into unit frames and insert copyright information into the unit frames, enabling to determine the infringement of copyright when the motion picture is illegally circulated. The apparatus includes a processing unit, a merging unit and an output unit. The processing unit decomposes a motion picture into a plurality of unit frames, and generates a main frame, a sub-frame including copyright information for the motion picture and a degree frame which is paired with the sub-frame, based on the unit frames. The merging unit merges the sub-frame into the main frame according to a degree of mergence of the degree frame. The output unit continuously outputs the merged frames in time order. | 12-30-2010 |
| 20110029768 | METHOD FOR TRANSMITTING CONTENTS FOR CONTENTS MANAGEMENT TECHNOLOGY INTERWORKING, AND RECORDING MEDIUM FOR STORING PROGRAM THEREOF - A DRM technique interoperability system includes an exporter and an importer. The exporter cancels the DRM technique from the contents to which the DRM technique of a DRM device is applied to generate a contents stream, generates a plurality of packets from the contents stream, and transmits the packets to the importer. The importer receives a plurality of packets from the exporter, generates a contents stream from the plurality of packets, applies a DRM technique of a second DRM device to the contents stream, and provides it to the second DRM device. | 02-03-2011 |
| 20110249817 | METHOD OF MANAGING GROUP KEY FOR SECURE MULTICAST COMMUNICATION - A group key management method for secure multicast communication includes: creating a tree having a root node, internal nodes and leaf nodes to manage group keys of a receiver group by a group key management server; generating user keys of all nodes excluding the root node in the tree on the basis of Chinese Remainder Theorem; assigning the leaf nodes of the tree to users of the receiver group; and sending the user keys of the leaf nodes to the corresponding users for group key management. Further, the group key management method for secure multicast communication includes generating group keys of all non-leaf nodes; computing a solution of congruence equations based on the user key and group key by using Chinese Remainder Theorem for each non-leaf node; and multicasting a group key update message to each user of the respective leaf nodes. | 10-13-2011 |
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| 20090149198 | SYSTEM AND METHOD FOR TRACKING POSITION - Provided are a position tracking system and a position tracking method. The position tracking system includes at least one target node, a plurality of reference nodes having position information, and a position determination device. An arbitrary reference node among the reference nodes and the target node utilize a distance measurement message to measure a first time of arrival (TOA) and then transmit the first TOA to the position determination device. At least two other reference nodes adjacent to the arbitrary reference node and the target node listen to the distance measurement message to measure a second TOA and then transmit the second TOA to the position determination device, in order to track a position of the target node. | 06-11-2009 |
| 20100141531 | POSITION TRACKING APPARATUS AND METHOD FOR A LOW POWER WPAN/WBAN DEVICE - Provided is a position tracking apparatus and method for low power WPAN/WBAN sensors in a sensor network. A position tracking apparatus collects distance information of adjacent nodes from a plurality of anchor nodes whose positions are known and at least one sensor node whose position is not known, in a sensor network, calculates the shortest path for the anchor node based on the collected distance information of the adjacent node, and classifies nodes into nodes of a first group whose positions are known and nodes of a second group whose positions are not known to select sensor nodes in an adjacent order from the second group to the first group based on the anchor node and detect the positions thereof. | 06-10-2010 |
| 20100152534 | CAPSULE ENDOSCOPY SYSTEM, MEDICAL SYSTEM, AND OPERATION METHOD OF MEDICAL SYSTEM - Provided are a capsule endoscopy system, a medical system, and an operation method of the medical system. A control device outside a human body and two or more implantable medical devices (e.g. capsule endoscopes) form a network with each other, and the two or more implantable medical devices divisionally perform investigation, identification, and treatment while cooperating with each other, by controlling the control device outside the human body. | 06-17-2010 |
| 20100157810 | DISTANCE MEASURING METHOD - Provided is a distance and position measuring method. A distance measuring method based on packets transmitted and received between a first node and a second node obtains first timing for transmitting a first packet from the first node, second timing for receiving the first packet in the second node, third timing for transmitting a second packet corresponding to the first packet from the second node, fourth timing for receiving the second packet in the first node, fifth timing for transmitting a third packet from the second node, and sixth timing for receiving the third packet in the first node to estimate a clock frequency offset based on the obtained timings, measures a first distance and a second distance based on the clock frequency offset and some of the timings, and measures a distance between the first node and the second node based on the first distance and the second distance. | 06-24-2010 |
| 20100254486 | METHOD OF BLOCK-CODED GROUP MODULATION AND TRANSMITTER USING THE SAME - A transmitter using a method of block code-based group modulation includes a grouping unit, a generating unit, and a mapping unit. The grouping unit generates symbols by grouping a data bit stream into N-bit groups, and the generating unit generates a codeword set composed of codewords corresponding to combinations of arrangements of pulses that are generated by a result of grouping to a predetermined number. Next, the mapping unit block-maps a codeword selected from the codeword set to groups constituting the symbols. | 10-07-2010 |
| 20110134820 | SYSTEM AND METHOD FOR POWER SAVING FOR IN-BODY AND ON-BODY COMMUNICATION - A system for power saving in communication with a plurality of sensor apparatuses that are located in-body or on-body to sense bioinformation, a management apparatus that performs synchronization by transmitting a beacon signal to the plurality of sensors at each predetermined period, and a sensor apparatus that includes a sensor receiving a first beacon signal, grasps how much time remains until the second beacon signal is received when the sensor is activated to sense the bioinformation, and determines the operation state of the sensor based on the grasped time are provided. | 06-09-2011 |
| 20110268155 | DISTANCE ESTIMATION APPARATUS, SYSTEM AND METHOD USING RANGING COUNTER - Provided is a distance estimation apparatus, system and method for accurately estimating the distance between TX/RX devices by means of low-end hardware in a communication system such as the IEEE 802.15.4a system. The distance estimation apparatus includes an analog-to-digital converter, a parallelizer, a parallel synchronization means, a counter, and a system clock generator. The analog-to-digital converter analog-to-digital converts a received packet signal to generate a serial digital signal, and the parallelizer 1:N parallelizes the serial digital signal. The parallel synchronization means includes an N number of buffers for receiving the output of the parallelizer. A counter outputs a count value for estimation of the propagation delay time of a UWB signal on the basis of the sampling data retained in the parallel synchronization means. The system clock generator generates a system clock in the distance estimation apparatus. Therefore, it is possible to accurately estimate the distance between the TX/RX devices by arithmetically calculating a received signal while operating a ranging counter with a low-rate system clock, thereby simplifying the hardware structure and minimizing power consumption. | 11-03-2011 |
| 20120140053 | HEALTH MONITORING METHOD AND APPARATUS - A health monitoring method of a health monitoring apparatus which wirelessly communicates with a wireless terminal and includes a camera module is provided. The apparatus establishes a connection with the wireless terminal and receives a control signal from the wireless terminal. The apparatus captures an image of a body part with the camera module in response to the control signal, and encodes the captured image into a digital image signal. The apparatus then packetizes the digital image signal and transmits the packetized signal to the wireless terminal. | 06-07-2012 |
| 20120163359 | BODY COMMUNICATION SYSTEM, MEDIA ACCESS CONTROL BRIDGE, BRIDGE APPARATUS, AND OPERATING METHOD OF BRIDGE APPARATUS - A human body communication system is disclosed, which includes a plurality of intra-body communication apparatuses, a plurality of extra-body communication apparatuses, a bridge apparatus, and an access point. The bridge apparatus manages connections between the intra-body communication apparatuses and the extra-body communication apparatuses, and performs packet exchange. The access point performs packet exchange between a plurality of bridge apparatuses. The bridge apparatus performs negotiation with communication apparatuses to set up a connection, and manages a path based on the connection setup. | 06-28-2012 |
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| 20120062406 | ANALOG DIGITAL CONVERTING DEVICE - Provided is an analog digital converting device which consumes a low power and guarantees fast operation characteristic. The analog digital converting device includes a sub-ADC and a successive approximation ADC. The sub-ADC converts an external analog signal into a first digital signal by using first and second reference voltages. The successive approximation ADC comprises a plurality of bit streams, and converts the external analog signal into a second digital signal according to a successive approximation operation using the first and second reference voltages. The successive approximation ADC receives the first digital signal, and converts the second digital signal in a state where one of the first and second reference voltages has been applied to the bit streams based on the first digital signal. | 03-15-2012 |
| 20120146820 | PIPELINED ANALOG DIGITAL CONVERTOR - Disclosed is a pipelined analog-to-digital converter which includes a digital correction circuit configured to measure and correct a pipelined conversion stage gain error and an offset error due to a finite voltage gain operational amplifier and capacitor mismatch. The pipelined analog-to-digital converter includes a pipelined conversion stage error measuring and correcting circuit measuring and correcting an error generated from an conversion stage, so that an error of a conversion stage is minimized and a chip realization area and power consumption are reduced. | 06-14-2012 |
| 20120146821 | PIPELINED ANALOG DIGITAL CONVERTOR - Disclosed is a pipelined analog-to-digital converter which includes a digital correction circuit configured to improve the complexity of a logic circuit for dividing a correction period and a no-correction period of a digital output. The pipelined analog-to-digital converter performs a logic correction operation via binary shifting at data error correction. Accordingly, although the resolution increases, it is possible to reduce the complexity and area of a logic circuit. | 06-14-2012 |
| 20120146830 | ANALOG DIGITAL CONVERTER - Provided is an analog digital converter (ADC). The ADC includes: a capacitor array generating a level voltage; a comparator outputting a compare signal by comparing the level voltage; and a logic circuit determining digital bits of an analog signal based on the compare signal, wherein the logic circuit determines at least one digital bit among digital bits of the analog signal while a sampling operation of the analog signal is performed in the capacitor array. | 06-14-2012 |
| 20120242266 | SENSORLESS BLDC MOTOR SYSTEMS AND DRIVING METHODS OF SENSORLESS BLDC MOTOR - Provided is a sensorless BLDC motor system. The sensorless BLDC motor system includes a BLDC motor, a comparator, a motor controller, a three-phase inverter, and a mode selector. The BLDC motor includes first to third coils. The comparator compares a voltage of a specific coil of the first to third coils with a neutral-point voltage to output the compared result. The voltage of the specific coil becomes equal to the neutral-point voltage and a specific time elapses, and then the motor controller generates first and second coil control signals based on the compared result. The three-phase inverter supplies a source voltage or ground voltage to the specific coil, or floats the specific coil, in response to the first and second coil control signals. The mode selector selects a driving mode of the BLDC motor by adjusting the specific time. | 09-27-2012 |
| 20120268052 | MOTOR CONTROL DEVICE AND METHOD OF CONTROLLING THE SAME - A motor control device including a preprocessing portion calculating a counter electromotive force using an analog operation is provided. The motor control device may include an offset compensation portion and a counter electromotive force measuring portion. The offset compensation portion receives a three-phase current signal from the motor and compensates an offset of the three-phase current signal. The counter electromotive force measuring portion receives the compensated current signal and a three-phase voltage signal from the motor and calculates the received current signal and the received voltage signal using an analog operation to provide the calculated result. | 10-25-2012 |
| 20130027094 | TRIANGULAR WAVE GENERATOR AND METHOD GENERATING TRIANGULAR WAVE THEREOF - Disclosed is a triangular wave generator which includes a square wave signal generating unit configured to output a first signal transitioning to a high level from a low level via an output terminal in response to a first transition of a clock signal and to transition the first signal to a low level from a high level in response to a reset signal; a resistance unit configured to adjust a voltage level of a the square wave signal; and a capacitance unit configured to receive an output signal of the resistance unit to generate a second signal rising to a high level from a low level with a slope, to provide the reset signal to the square wave signal generating unit, and to output a triangular signal by falling the second signal to a low level from a high level with a slope. | 01-31-2013 |
| 20130076552 | ANALOG-DIGITAL CONVERTER AND POWER SAVING METHOD THEREOF - Disclosed is an analog-digital converter which includes a pre-amplifier configured to output a comparison result between a sampled analog input signal and a reference signal and to control a power supply operation in response to a power control signal; a digital signal processor configured to generate a digital signal based on the comparison result; a power controller configured to generate an amplifier operation clock signal for controlling the pre-amplifier; and a counter configured to count the number of falling edges of the amplifier operation clock signal and to detect a power interruption point of time of the pre-amplifier according to the counted falling edge number. The power controller generates the power control signal for interrupting a power to be supplied to the pre-amplifier when the power interruption point of time of the pre-amplifier is detected. | 03-28-2013 |
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| 20110103771 | APPARATUS AND METHOD FOR RECORDING PARTIAL ENCRYPTION OF BROADCAST PROGRAM - An apparatus for encrypting and recording a broadcasting program includes a packet input unit configured to receive packets of a broadcasting program to be recorded and sequentially output the packets, an encryption selector configured to receive the packets sequentially output from the packet input unit, selectively output the received packets to a first path and to a second path, wherein packets to be encrypted are output to the first path and packets not to be encrypted are output to the second path, an encryption processor configured to encrypt the packets output to the first path based on a predetermined encryption method, and a storing unit configured to store the encrypted packets from the encryption processor or store the packets output to the second path. | 05-05-2011 |
| 20110153783 | APPARATUS AND METHOD FOR EXTRACTING KEYWORD BASED ON RSS - An apparatus and method for detecting a keyword are provided. The method for detecting a keyword includes collecting RSS information, extracting terms from the RSS information, calculating importance levels of the terms, and selecting a keyword from among the terms based on the importance levels. | 06-23-2011 |
| 20120066708 | SYSTEM METHOD FOR DISPLAYING ADDITIONAL SERVICE INFORMATION OF CONTENT ON AUXILIARY TERMINAL - A system and method for displaying additional service information of a content on an auxiliary terminal are provided. The auxiliary terminal may extract a portion of a content output from an external device, may analyze at least one piece of feature from the extracted portion of the content, and may receive additional service information corresponding to the content from a selected server. Additionally, the selected sever for providing the additional service information may associate the feature with the additional service information, and may store the feature and the additional service information. | 03-15-2012 |
| 20120134510 | WATERMARK GENERATING METHOD, BROADCAST CONTENTGENERATING METHOD INCLUDING THE SAME AND WATERMARKING SYSTEM - Disclosed are a method of generating a watermark, a method of generating a broadcast content including the same, and a watermarking system. The method of generating a watermark according to an exemplary embodiment of the present disclosure includes: determining a size of a target image to which a broadcast content is provided; determining the number of watermarks to be inserted into one frame of the target image; generating a watermark insert pattern by using the size of the target image and the number of watermarks; and scaling up the watermark insert pattern to a predetermined pattern for inserting the watermark insert pattern into an original image of the broadcast content. | 05-31-2012 |
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| 20090088116 | METHOD AND APPARATUS OF SUCCESSIVE INTERFERENCE CANCELLATION FOR WIRELESS COMMUNICATION SYSTEM - A method and apparatus of successive interference cancellation for a wireless communication system is provided. A method of detecting a transmission signal for the method of the successive interference cancellation, the method including: receiving transmission signals transmitted from ‘M’ antennas; calculating a residual error value of each of the received transmission signals; and determining a detection sequence of the transmission signals based on the calculated residual error value. | 04-02-2009 |
| 20090232247 | INTERCELL INTERFERENCE MITGATION APPARATUS AND METHOD - There is provided an intercell interference mitigation apparatus for use in a terminal having a single reception antenna in a multi-cell downlink of an OFDMA system. The apparatus includes one or more parallel interference cancellers for canceling intercell interference by respreading soft decision values of cells other than a self cell; one or more LLR creation blocks for creating channel LLRs required for the soft decision for each of subcarriers, and producing channel soft outputs; one or more soft deciders for performing a soft decision of a self user symbol of the self cell in which interferences from other users are mitigated, and producing the soft decision values; and one or more channel estimation blocks for performing iterative channel estimation by respreading symbols of the soft decision values produced from the soft deciders. | 09-17-2009 |
| 20090241120 | SYSTEM AND METHOD FOR CONTROLLING PRIORITY IN SCA MULTI-COMPONENT AND MULTI-PORT ENVIRONMENT - A system for controlling priority in a SCA-based application having a plurality of components wherein each of the components has a plurality of ports, includes: a priority component scheduler, interworking with the plurality of components wherein component priority order of the components is arranged therein; and a priority port scheduler that is provided in each of the components including the plurality of the ports which are associated with connections between the components, wherein port priority order of the ports included in each of the components is arranged therein. The priority component scheduler may be generated by using domain profiles in which component priority values of the components are set and the priority port scheduler may be generated by using domain profiles in which port priority values of the ports included in each of the components are set. Further, the domain profiles may be XML files. | 09-24-2009 |
| 20100266069 | ITERATIVE RECEIVER AND ITERATIVE DECODER - An iterative receiver and an iterative decoder are provided. The iterative receiver includes: an external decoder to decode the detected received signal; an impurity adder to add an impurity to an output signal of the external decoder; an interleaver to perform interleaving between the internal detector and the external decoder; and a de-interleaver to perform de-interleaving between the internal detector and the external decoder. | 10-21-2010 |
| 20100266073 | ACCELERATED TURBO TRANSCEIVER AND METHOD FOR MIMO SYSTEM - A reception apparatus including: a detection unit detecting extrinsic information based on a tentative symbol decision signal, a channel estimation signal, a noise variance estimation signal, and a received signal that are obtained from a previous iteration process; a Cyclic Redundancy Check (CRC) aided channel decoding unit outputting an interleaved bit or a posteriori information thereof based on the extrinsic information; a tentative symbol decision unit determining a tentative transmission symbol based on an output of the CRC aided channel decoding unit; a channel estimation unit estimating a channel based on an output of the tentative symbol decision unit; and a noise variance estimation unit estimating a noise variance based on the output of the tentative symbol decision unit and an output of the channel estimation unit is provided. | 10-21-2010 |
| 20110075758 | APPARATUS FOR TRANSMITTING LAYERED DATA - A transmission apparatus, including: a first encoding unit to encode first layer data based on a first encoding scheme and generate first encoded data; a second encoding unit to encode both the first encoded data and second layer data based on a second encoding scheme and generate second encoded data; and a transmission unit to transmit the second encoded data to a receiving apparatus. | 03-31-2011 |
| 20110158302 | ITERATIVE ESTIMATOR AND METHOD OF CHANNEL AND NOISE VARIANCE FOR MULTIPLE INPUT MULTIPLE OUTPUT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM - A reception apparatus including: a detection unit detecting extrinsic information based on an output of a tentative symbol decision unit, an output of a channel estimation unit, and an output of a noise variance estimation unit that are obtained from a previous iteration process; a Cyclic Redundancy Check (CRC) aided channel decoding unit outputting an encoded and interleaved bit, or a posteriori information thereof based on the extrinsic information; the tentative symbol decision unit determining a tentative transmission symbol based on an output of the CRC aided channel decoding unit; the channel estimation unit estimating a channel based on an output of the tentative symbol decision unit or a pilot symbol; and the noise variance estimation unit estimating a noise variance or an initial noise variance based on the output of the tentative symbol decision unit and the output of the channel estimation unit is provided. | 06-30-2011 |
| 20110212684 | DATA TRANSMISSION AND RECEPTION METHOD IN COOPERATIVE COMMUNICATION SYSTEM - A data transmission and reception method in a cooperative communication system is provided. The data transmission method of a base station in a cooperative communication system includes: generating a first code word for cooperative transmission and a second code word for direct transmission to a mobile station; and transmitting a signal including one or more of the first and second code words to a relay equipment for cooperative transmission and the mobile station. The first and second words are independent from each other. | 09-01-2011 |
| 20130078991 | METHOD AND DEVICE FOR MANAGING INTERFERENCE IN NEIGHBOURING CELLS HAVING MULTIPLE SENDING AND RECEIVING NODES - Disclosed is method for controlling interference in a wireless system having multiple sending and receiving nodes. In the method for controlling interference in a wireless system having multiple sending and receiving nodes, a plurality of receiving nodes share each other's channel information, each of the receiving nodes uses the shared channel information to calculate a precoding matrix which is fed back to the sending nodes, and each of the sending nodes uses each of the precoding matrices received as feedback to transmit a send signal to the receiving nodes, thereby controlling interference. Complete interference alignment can be achieved even by just sharing channel information between receiving nodes, and the invention can be employed not only for inter-cell interference but also for intra-cell interference environments. | 03-28-2013 |
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| 20090304125 | ITERATIVE RECEIVER AND METHOD FOR DETECTING TRANSMITTED SIGNAL THEREOF - In an iterative receiver, a signal detector estimates interference from an estimated transmitted signal, and cancels the estimated interference from a signal received through an antenna. A decoder performs channel decoding by using the interference cancelled received signal. A soft decision unit performs a soft decision process on the transmitted signal by using the channel decoded signal. A channel estimator estimates a channel by using the soft decision applied transmitted signal and the received signal. A covariance estimator estimates covariance on the sum signal of the interference and noise by using the soft decision applied transmitted signal, the received signal, and the estimated channel. A hard decision unit determines the transmitted signal by using the channel decoded signal after interference cancellation, channel decoding, estimated transmitted signal updating, channel estimation, and covariance estimation are iterated a number of times. | 12-10-2009 |
| 20100034110 | ITERATIVE RECEPTION METHOD AND ITERATIVE RECEIVER - An iterative reception method and iterative receiver in a mobile communication system are provided. In order to remove inter-cell interference of a signal that is iteratively received in a multi-cell environment, a soft determination value of different cells excluding a specific cell is re-spread to be used. In addition, in order to improve reception performance of the iterative receiver that performs the interference removal by using the soft determination value, channel estimation is iteratively performed on the iteratively received signal by using a soft determination value of a previous order of the specific cell to update a channel estimation value. Accordingly, it is possible to reduce complexity of implementation and effectively remove the inter-cell interference by using the soft determination value. | 02-11-2010 |
| 20110004798 | Cooperation Communication Method and System Using Feedback Signal - Disclosed are a cooperation communication method and system using feedback signals. The cooperation communication method includes transmitting a packet to a base station by a terminal, determining, by the terminal, whether decoding of the transmitted packet is successfully performed using a feedback signal from the base station, and re-transmitting the packet to the base station by the terminal according to whether decoding of a packet of an adjacent terminal within a prescribed distance from the terminal is successfully performed. | 01-06-2011 |
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| 20080288380 | Method and System for Providing Streamed Game Software on Portable Terminal - A system and method for providing streaming game software for a portable terminal are provided. The system includes a software producer, a service provider, a portable terminal, and a billing device. The software producer produces streaming software, and the service provider provides the software in a streaming mode. The portable terminal creates virtual computing resources by virtualizing and amplifying real computing resources for executing software and executes streaming software provided from the service provider based on the amplified virtual computing resource. The billing devices collects billing information, and calculates a cost according to a billing policy set based on the collected billing information. | 11-20-2008 |
| 20100023488 | SYSTEM AND METHOD FOR INTEGRATING INTERACTIVE VIDEO SERVICE AND YELLOW PAGE SERVICE - Provided is a method for providing the integration service of an interactive video and a yellow page, which includes receiving a video request message of a client, selecting multimedia data corresponding to the received message, and transmitting the selected multimedia data to the client, receiving a search message of the client, searching brand information corresponding to the search message in a yellow page database, and selecting optimal brand information of the searched brand information using a service use record of the client, and transmitting the searched optimal brand information to the client. It is possible for user to easily obtain necessary information while viewing video by integrating an interactive video service and a yellow page service. Accordingly, it is possible to provide information customized to user's characteristics by configuring and using a user profile. | 01-28-2010 |
| 20100077396 | PORTABLE STORAGE DEVICE FOR SUPPORTING PORTABLE COMPUTING SYSTEM AND PORTABLE COMPUTING BASED SYSTEM USING THE SAME - Provided are a portable computing system that allows computing operations anywhere an operating system (OS)-installed host computer exists by using a portable storage device storing a virtual machine, an OS image, a portable software image, etc. and a portable computing based system using the portable computing system. The portable storage device for supporting a portable computing system includes: a portable computing system storage storing portable software for running and operating of a portable computing system, wherein a user may not directly access the portable software for deletion and modification; a portable software storage storing portable software images usable in the portable computing system, wherein a user may not directly access the portable software images for deletion and modification; and a portable data storage capable of adding, deleting, and modifying data. | 03-25-2010 |
| 20100162233 | METHOD AND SYSTEM FOR DISTRIBUTING BUNDLED APPLICATIONS - Provided are a method and system for distributing bundled applications, which represent the installation and execution relationships of an application based on the work relevance and bundle corresponding applications together to distribute the bundled applications. A plurality of applications for distribution are converted into a plurality of distributable applications. A meta information file including information on installation and execution relationships of the distributable applications is generated. A bundled applications distribution copy including a plurality of distributable applications and the meta information file is generated and distributed. | 06-24-2010 |
| 20110153308 | VIRTUALIZATION APPARATUS AND PROCESSING METHOD THEREOF - A virtualization apparatus includes: an emulation manager for searching a basic block cache for an entry with an entry point, and, if there exists no entry with the entry point in the basic block cache, requesting the identification of a basic block corresponding to the entry point; a basic block identifier for identifying the basic block by sequentially analyzing instructions of a source binary in response to a request from the emulation manager; and an instruction replacer for writing an entry of the identified basic block in an replaced instruction table, writing a branch instruction for the entry of the basic block in the source binary, and then branching to the entry point. The apparatus further includes an instruction emulator for executing an instruction of the basic block when a branch to the entry point is made. | 06-23-2011 |
| 20110219373 | VIRTUAL MACHINE MANAGEMENT APPARATUS AND VIRTUALIZATION METHOD FOR VIRTUALIZATION-SUPPORTING TERMINAL PLATFORM - A virtual machine management apparatus includes a first Operating System (OS) kernel for supporting a first OS that runs on a virtualization-supporting terminal platform; and a second OS kernel for supporting a second OS that runs on the terminal platform. Further, the virtual machine management apparatus includes a virtual machine configuration manager for, when an exception task is requested based on the first OS or the second OS of the terminal platform, controlling processing of the exception task in compliance with a preset policy. | 09-08-2011 |
| 20120151064 | SYSTEM AND METHOD FOR SUPPORTING OF NETWORK SERVICE - Disclosed are a network service architecture and a service supporting method to embody a dynamic program that allows a service provider to provide various services. The present invention suggests a network service architecture that is configured by a service producer, a service provider, a network device, and a network service store and provides a processes of making a program required for the service using an open API and an interface, notifying the service to the network service store, and dynamically installing the program in the network device based on the network service architecture. According to exemplary embodiments of the present invention, it is possible to diversely make and install a dynamic program, which are demanded by the service provider, in the network devices. | 06-14-2012 |
| 20120166647 | APPARATUS FOR CONFIGURING VIRTUAL NETWORK USING NETWORK VIRTUALIZATION TECHNIQUE AND METHOD THEREOF - Provided are an apparatus for configuring a virtual network using a network virtualization technique, and a method thereof according to the present invention. The apparatus for configuring a virtual network and method according to present invention may construct a virtual network capable of guaranteeing a desired network characteristic during a predetermined period using a resource provided from at least one platform according to a mutual interaction policy of a platform. | 06-28-2012 |
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| 20120153223 | ABSORBENT FOR CAPTURING CARDON DIOXIDE INCLUDING AMINO ACID HAVING MULTI AMINE GROUPS AND METAL HYDROXIDE - Provided is an absorbent for capturing carbon dioxide. The absorbent may include an amino acid with multiple amine groups and an alkali-metal hydroxide mixed with the amino acid and thus, may increase an absorption capacity for carbon dioxide. When a sterically hindered effect is induced to the amino acid with multiple amine groups, the absorption capacity for carbon dioxide may increase and heat of absorption reaction may decrease and thus, energy consumed for regeneration of an absorbent may be reduced. The absorbent for capturing carbon dioxide may include amino acid with multiple amine groups and the metal hydroxide, and may provide a functional group around the amine groups to cause an sterically hindered effect and thus, the absorption capacity for carbon dioxide and an carbon dioxide absorption rate may increase, and the capital cost for a carbon dioxide capturing process and an operating cost may be significantly reduced. | 06-21-2012 |
| 20120302678 | IONIC LIQUID-POLYMER GEL MEMBRANE WITH IMPROVED GAS PERMEABILITY, AND PREPARATION METHOD THEREOF - The present invention relates to an ionic liquid-polymer gel membrane with improved gas permeability, and a preparation method thereof, and more specifically, to a membrane prepared to allow an ionic liquid to be dispersed in a polymer gel, thereby improving gas permeability. Particularly, the present invention relates to an ionic liquid-polymer gel membrane wherein membrane selectivity and permeability exceed an upper bound by increasing the amount of dispersed ionic liquid, and a preparation method thereof. The preparation method of the membrane for separating a specific gas from a mixture gas according to the present invention comprises the following steps of: mixing a polymer, an ionic liquid and PC as a solvent to prepare a mixture solution; and drying the mixture solution to remove the solvent from the mixture solution. In addition, the polymer is polyvinylidene fluoride-hexafluoropropyl copolymer (PVdF-HFP), and the ionic liquid is 1-ethyl-3-methylimidazolium tetrafluoroborate ([emim][BF | 11-29-2012 |
| 20120308457 | Alkali-Carbonate-Based Carbon Dioxide Absorbent Containing Added Sterically Hindered Cyclic Amines, and Method for Removing Carbon Dioxide Removing Using Same - The present invention relates to a carbon dioxide absorbent, and more particularly, to an alkali carbonate-based carbon dioxide absorbent containing added sterically hindered cyclic amines, and to a method for removing carbon dioxide using same. By adding sterically hindered cyclic amines to an alkali carbonate material, the rate of carbon dioxide absorption is increased, renewable energy is reduced, and salt production and phase separation do not occur. | 12-06-2012 |
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| 20080312936 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING VOICE DATA TO ESTIMATE VOICE DATA VALUE CORRESPONDING TO RESYNCHRONIZATION PERIOD - Provided are an apparatus and method for estimating a voice data value corresponding to a silent period produced in a key resynchronization process using the sine waveform characteristic of voice when encrypted digital voice data is transmitted in one-way wireless communication environment. The apparatus includes a transmitter that generates a key resynchronization frame containing key resynchronization information and vector information on voice data inserted thereinto and transmits the key resynchronization frame, and a receiver that receives the key resynchronization frame from the transmitter, extracts the vector information inserted in the key resynchronization frame, and estimates a voice data value corresponding to the key resynchronization period. Based on change ratio between slopes calculated using received voice data, it is possible to estimate the voice data corresponding to a silent period, which improves communication quality. | 12-18-2008 |
| 20090059964 | APPARATUS AND METHOD FOR SYNCHRONIZING TIME INFORMATION USING KEY RE-SYNCHRONIZATION FRAME IN ENCRYPTION COMMUNICATIONS - Provided are an apparatus and method for synchronizing time information of both transmitting and receiving side using a key re-synchronization frame in encryption communications that require algorithm synchronization. The apparatus for synchronizing time information using a key re-synchronization frame includes: a transmitter including an input unit for receiving a voice, a first vocoder for encoding the received voice, a frame generation unit for generating a frame with respect to the encoded voice data and a frame transmitting unit for transmitting the frame to a receiver; and the receiver including a frame receiving unit for receiving the frame transmitted from the transmitter, a frame analyzer for identifying a type of the received frame and analyzing information included in a key re-synchronization frame to calculate a time difference between a transmitting side and a receiving side, a second vocoder for decoding the voice data in the frame to be vocalized, and an output unit for outputting the vocalized voice. | 03-05-2009 |
| 20090161878 | ENCRYPTION COMMUNICATION APPARATUS AND METHOD FOR CONTROLLING TRANSFER PERIOD OF KEY RESYNCHRONIZATION INFORMATION - An apparatus and method for controlling a packet transfer period of key resynchronization information in an encryption communication system are provided. The encryption communication apparatus includes a receiving means that computes a packet loss ratio and a network transfer delay time through a received packet when the packet is received and generates network status report information for a packet size and a packet transfer period of key resynchronization information using the packet loss ratio and the network transfer delay time, and a transmitting means that transmits a packet of the key resynchronization information in the transfer period by controlling the packet size and the packet transfer period of the key resynchronization information according to the network status report information received from the receiving means when data is input. | 06-25-2009 |
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| 20090161864 | BLOCK CIPHER ARIA SUBSTITUTION APPARATUS AND METHOD - A block cipher ARIA substitution apparatus, the apparatus includes a first Sbox operation unit for performing operations of a substitution box S | 06-25-2009 |
| 20090316887 | DATABASE ENCRYPTION AND QUERY METHOD KEEPING ORDER WITHIN BUCKET PARTIALLY - A database encryption and query method keeping an order within a bucket partially, which encrypts and stores numeric data in a database, includes calculating a relative value of a plaintext within a bucket to which the plaintext is allocated; generating a first key value by producing a random number within the bucket; generating a second key value for defining a function having a bucket range of the bucket as an input; and changing the relative value based on the first and the second key value with keeping an order of the relative value partially to store the changed relative value. The first key value may be a value of separating order informations on the relative value. Further, the second key value may be a resultant value obtained by applying a mod 2 operation to the bucket size of the bucket. | 12-24-2009 |
| 20100135488 | SVC ENCRYPTION APPARATUS AND METHOD AND CONTENTS PROVIDING SYSTEM AND METHOD - An SVC encryption apparatus includes: an encoding/encryption unit for performing SVC (Scalable Video Coding) encoding on input data contents and carrying out encryption for data in accordance with a first encryption condition to generate a corresponding SVC bitstream; and a NAL (Network Adaptation Layer) data analysis unit for analyzing NAL data of the generated SVC bitstream to find out NAL data satisfying a second encryption condition. Further, the SVC encryption apparatus includes a conditional NAL data encryption unit for encrypting the extracted NAL data in accordance with the second encryption condition; and a bitstream transmitting unit for transmitting the SVC bitstream with encrypted NAL data. | 06-03-2010 |
| 20110145560 | ADAPTIVE SECURITY POLICY BASED SCALABLE VIDEO SERVICE APPARATUS AND METHOD - An adaptive security policy based scalable video service apparatus includes a video streaming server, an adaptive security policy server and a terminal. The video streaming server receives a service demand via a network and generates an encrypted streaming data. The adaptive security policy server analyzes a media structure and the service demand, by using a service profile received from the video streaming server, so as to generate a security policy description. The terminal generates and transmits the service demand to the video streaming server or the adaptive security server, obtains the encrypted streaming data from the video streaming server and decrypts the encrypted streaming data for playback, storing and retransmission. | 06-16-2011 |
| 20120159161 | AUTHENTICATION APPARATUS AND METHOD FOR NON-REAL-TIME IPTV SYSTEM - An authentication apparatus for a non-real-time IPTV system decrypts a first encrypted value included in a contents request message received from a device using a preset session key, and then verifies the validity of the contents request message. If the verification results of the contents request message are valid, the authentication apparatus encrypts a variation between timestamps of the authentication apparatus and the device using the session key, and then generates a second encrypted value. After verification information by which the device is capable of verifying the authentication apparatus has been generated using the second encrypted value, the authentication apparatus sends verification information, together with contents corresponding to the contents request message, to the device. | 06-21-2012 |
| 20120163594 | SECURITY LABEL GENERATION METHOD AND APPARATUS FOR SCALABLE CONTENT DISTRIBUTION - A security label generation apparatus for scalable content distribution, includes a scalable content transmitter for receiving service level requirements of a user and network bandwidth information over a network and generating security labels and encrypted scalable units. Further, the security label generation apparatus includes a scalable content receiver for receiving the encrypted scalable units and the security labels from the scalable content transmitter and for decrypting, decoding, playing, modifying, storing or redistributing the encrypted scalable units based on the security labels. Furthermore, the security label generation apparatus includes scalable content storage for searching for scalable content and metadata corresponding to a request of the scalable content transmitter. | 06-28-2012 |
| 20120163595 | METHOD AND SYSTEM FOR PROVIDING LAYERED ACCESS CONTROL FOR SCALABLE MEDIA - An encryption method for providing layered access control for scalable media includes encrypting the scalable media using different encryption keys for respective layers of the scalable media to create a protected content; providing the protected content to a first user terminal; selectively inserting part or all of the encryption keys into a key area of a right object based on the grade of the first user terminal to generate a first right object; and providing the first right object to the first user terminal. | 06-28-2012 |
