Abstract: The present invention relates to a system for storing and managing a comment on content in a social community, and enabling another user to retrieve content or a comment. In particular, the present invention may generate image comments for target content from users of a social community, and summarize the generated imaged comments.

Abstract: Provided are an apparatus and method for generating a multiple output sequence. The apparatus includes an update unit configured to update a first shift register having k stages by inputting a value to the first shift register at every clock, a transfer unit configured to simultaneously transfer, at every clock, output values output from the first shift register to k stages of a second shift register respectively and output values output from k stages of the second shift register to k stages of a third shift register having the k stages respectively, and a multiple output generator configured to generate a multiple output sequence by outputting values of the k stages of the third shift register at every clock.

Abstract: A mobile station receives a MIMO feedback mode bitmap and information on a MIMO feedback period. The mobile station estimates channel information corresponding to at least one MIMO feedback mode indicated by the MIMO feedback mode bitmap. The mobile station generates a MIMO feedback including the MIMO feedback mode bitmap and the channel information corresponding to the at least one MIMO feedback mode indicated by the MIMO feedback mode bitmap. The mobile station transmits the MIMO feedback at the advent of the MIMO feedback period.

Abstract: The present invention relates to a method of constructing a resource allocation map in a mobile communication system. In a method of constructing a map in a hierarchial pattern method in a case where a localized resource block (localized RB) and a distributed resource block (distributed RB) need to be simultaneously allocated in regards to a radio resource allocated in a previous frame or reserved with a fixed allocation, a radio resource that is reserved or not used and a radio resource that is newly allocated in a map of a current frame are classified and represented. Then, in regards to a radio resource that is allocated in a current frame, a localized RB and a distributed RB are classified and represented. As for the localized RB, allocation information is represented in an index pattern method, and as for the distributed RB, resource allocation information is represented in a toggle pattern method.

Abstract: The present invention relates to a femtocell search method for a handover from a macrocell to a femtocell. The present invention relates to a method for a terminal that accesses a macrocell to search a femtocell in an environment where a plurality of femtocells are overlapped in one macrocell. The terminal searches a femtocell by using a dummy preamble in order to minimize the size of neighbor cell lists broadcasted from the macrocell to the terminal. Therefore, according to the present invention, an MAC overhead can be minimized by eliminating neighbor femtocell lists in a mobile neighbor advertisement (MOB_NBR_ADV) message broadcasted from the macrocell, and the terminal can search a femtocell with a minimum scanning load by checking only a femtocell dummy preamble in a dedicated symbol of the macrocell.

Abstract: Disclosed is an apparatus for transmitting feedback information to a base station. The feedback information transmitting apparatus receives channel allocation information, generates a plurality of payloads regarding feedback information, and multiplexes the plurality of payloads in terms of a plurality of classes so as to generate a plurality of multiplexed payloads. Subsequently, the plurality of multiplexed payloads are code multiplexed so as to generate a code division multiplexing symbol, and a channel code is applied to the code division multiplexing symbol. Then, the code division multiplexing signal applied with the channel code is transmitted to a base station through a wireless resource. Accordingly, a feedback channel that is adaptive to a channel condition is configured, such that a wireless resource for a feedback channel can be efficiently used.

Abstract: A terminal location measuring device includes a database for storing registration information of a plurality of access points (AP's) forming a first infrastructure system for wireless LAN-based indoor location determination. The terminal location measuring device sets a search range of a database by using location information of the terminal acquired through a second infrastructure system that is different from the first infrastructure system, an identifier of at least one of a plurality of AP's, and a signal measurement value. The terminal location measuring device extracts registration information of an AP having the same identifier as at least one AP within the search range of the database, and measures a location of the terminal by using registration information of the AP.

Abstract: An apparatus and method for determining a characteristic of a motion picture.

Abstract: An apparatus for time synchronization of an orthogonal frequency division multiplexing (OFDM) system oversamples a received signal using a master clock having a frequency at least four times higher than a minimum sampling frequency in a transmission apparatus, sets one of a plurality of oversampled signals to an on-time signal, and shifts each of the remaining oversampled signals by a predetermined time on the basis of the on-time signal. The apparatus for time synchronization calculates a correlation value by correlating each of the shifted signals and the on-time signal with a previously known signal, detects a maximum energy value among the calculated correlation values, and detects a start point of a frame by comparing the maximum energy value with a predetermined threshold value.

Abstract: Disclosed is an apparatus for receiving data in a communication system, including a receiving unit configured to receive data through a multi-channel in a MIMO (multi-input multi-output) scheme; a calculating unit configured to calculate a receiving power distribution value in each antenna of a multi-antenna and in each channel of the multi-channel, correspondingly to the MIMO scheme, and to generate a receiving synchronization signal using the receiving power distribution value; and a synchronization unit configured to synchronize frames for the data receiving of the receiving unit using the receiving synchronization signal.

Abstract: Disclosed are an apparatus and a method for supporting access for a multi user to perform communication through a multi node by efficiently using a multi channel in a communication system of a multi user environment having the multi node, in which bands usable by STAs that intend to access an access point are searched in a multi channel; a transmission band for packet transmission is determined in the searched usable bands; and access to the access point is supported through the determined transmission band, and the transmission band is determined by performing ad-hoc through an ad-hoc media access control (MAC) protocol in the searched usable bands.

Abstract: The system for providing user-customized content includes, a personal information database server in which user profile information and content usage history information are stored, a content server which receives user identification information and user context information from a ubiquitous sensor network, receives the user profile information and the content usage history information from the personal information database server, and searches for customized content corresponding to a user based on the received information, and a content browsing server which processes the customized content received from the content server into a form that can be displayed on a user terminal and provides the processed customized content to the user terminal.

Abstract: Disclosed is a bias circuit which includes a bias voltage generating part configured to generate a bias voltage using a reference current and a variable current; a reference current source part configured to provide the reference current to the bias voltage generating part; and a current adjusting part configured to provide the variable current to the bias voltage generating part and to adjust the amount of the variable current according to voltage levels of at least two input signals. The bias circuit prevents an increase in power consumption and improves a slew rate at the same time.

Abstract: An interference cancellation method include detecting macro terminals which experience interference between a first signal output from a macro base-station and a second signal delivered from a femto terminal that is greater than a reference value; determining the number of channels of the femto base-station by subtracting the number of the detected macro terminals from the number of antennas of the femto base-station; generating a transmission beamforming weight vector using channel information of a signal interfered by the first signal and the second signal and channel information of the first signal; and providing a service, using the transmission beamforming weight vector, to as many femto terminals as the number obtained by subtracting the number of the detected macro terminals, which experience the interference greater than the reference value, from the number of the antennas of the femto base-station.

Abstract: The mobile web map service system includes a map server configured to provide map data to a terminal in response to a request from the terminal, a multimedia point of interest (mPOI) content provision server configured to provide multimedia information based on a geographic location represented by the map data in response to the request from the terminal, and a terminal configured to request and receive the map data and the multimedia information based on the geographic location represented by the map data, and output the received map data and multimedia information to a user. To overcome limitations of a conventional mobile web map service, a service can be configured using a service application programming interface (API) including hypertext markup language 5 (HTML5)-based geo-location, map-control, offline browsing, and mPOI functions.

Abstract: A system includes a server including a map data storage device storing original tile map data, grayscale image tile map data, and a plurality of multi-resolution color image tile map data having a resolution lower than that of the grayscale image tile map data, and a multi-resolution tile map data generation and transmission device generating the grayscale image tile map data and the multi-resolution color image tile map data and storing the generated data in the map data storage device, and a client including a multi-resolution tile map data reception and fusion device generating color tile map data by fusing the received grayscale image tile map data and color image tile map data and providing the color tile map data to a user, in which the resolution of the color image tile map data transmitted from the server is variably controlled according to the network environment.

Abstract: Provided are a method of packetizing encoded symbols and an apparatus using the same. The method includes an encoded symbol and target packet selection step of deciding a first source symbol and selecting an unpacketized first encoded symbol and a target packet into which the unpacketized first encoded symbol is inserted if there is the unpacketized first encoded symbol of at least one first encoded symbol, which is an encoded symbol of the first source symbol generated using an AND-OR tree structure, and a packetization step of generating a second source symbol based on at least one unpacketized first encoded symbol by use of the AND-OR tree structure, generating at least one second encoded symbol based on the second source symbol by use of the AND-OR tree structure, and packetizing at least one of second encoded symbols into the target packet along with the first encoded symbol.

Abstract: A method for controlling a greenhouse, which can adaptively control a greenhouse depending on the kind of crop growing in greenhouse provided. System for controlling a greenhouse may comprise a greenhouse environment control information distribution device and a greenhouse control device.

Abstract: An automatic stamping apparatus includes a conveyor for conveying a stamping object, a stamper for stamping a pattern and two-dimensional bar code information on the stamping object, a reader for reading the pattern and the two-dimensional bar code information, and an information processor for determining a pattern and two-dimensional bar code information to be stamped on the stamping object, controlling the stamper based on the determined pattern and two-dimensional bar code information, receiving the stamped pattern and two-dimensional bar code information of the stamping object read by the reader, comparing the received stamped pattern and two-dimensional bar code information with a pattern and two-dimensional bar code information to be stamped on the stamping object, thus verifying the accuracy of the stamping.

Abstract: Provided are a shared mesh protection switching apparatus and method. The shared mesh protection switching apparatus includes a plurality of linear protection switching processors allocated to the linear protection domains respectively and configured to provide a switching report signal in response to fault occurrence in the corresponding linear protection domains or a linear protection switching operation, and perform a function of limiting use of the shared section in response to a provided lock signal, and a mesh protection switching processor configured to select at least one linear protection domain to be limited in use of the network resources of the shared section according to a predetermined reference when the switching report signal is provided and provide the lock signal to a linear protection switching processor corresponding to the at least one selected linear protection domain.