Abstract: Provided is a method and apparatus for controlling an event of a cable modem and reporting a status of the cable modem, the method including: determining whether to periodically allocate a transmission bandwidth of a CM-STATUS message with respect to an event occurrence of the cable modem; setting an event control encoding that includes information regarding whether to periodically allocate the transmission bandwidth; and generating a MAC Domain Descriptor (MDD) message containing the event control encoding to transmit the generated MDD message.

Abstract: There is provided a movement detection method of a mobile node in a DSMIP6 environment. The movement detection method includes performing neighbor unreachability detection in a network to which a mobile node moves, confirming network movement detection and simultaneously performing IPv4 address allocation when the neighbor unreachability detection fails, performing router discovery at the same time as the IPv4 address allocation, recognizing the movement detection into the IPv4 network when the IPv4 address allocation succeeds, and recognizing the movement detection into the IPv6 network when the router discovery and the IPv6 router discovery succeed. Therefore, the movement detection method can be useful to continuously perform operations as defined in a DSMIP6 specification so as to confirm whether the network to which the mobile node moves is an IPv6 network or an IPv4 network and detect movement to the confirmed network, and to perform a binding update in time.

Abstract: Provided are a method and a system for managing a file metadata, which are independent of a address change of a data server and movements of a disk by using a location of disk where data exists actually as a location information of a file data. The method for managing the file metadata includes determining whether the request of the metadata is valid, verifying information of a disk storing a file data corresponding to the metadata and a data server address in which the file data exists, and transmitting the verified address of the data server to the client. According to the method and the system for managing the file metadata, data services can be continuously provided without modifications of a file metadata even if the data server address is changed.

Abstract: A method of processing an open asynchronous application service event and an open web service gateway implementing the method are provided. The open web service gateway includes: a plurality of SCFs (service capability features) operatively connected to an application service through a web service interface, receives an event registration request from the application service, and notifies an event occurring in a network to the application service; and an event broker registering the registration-requested based on a predetermined policy in correspondence with the SCFs, when the registration-requested event received from the application service is an asynchronous event, and notifies an occurrence of the event in the network to the SCFs according to a registered priority of the event.

Abstract: The invention provides a PCB type dual band patch antenna and a wireless communication module incorporating the antenna. The antenna includes a substrate. A ground pattern is formed on the substrate. A radiating patch is formed on the substrate to be spaced apart from the ground pattern at a predetermined distance. The radiating patch includes an input arm and a main radiator which are divided by a slot with ‘L’ and inverse ‘L’ shapes combined. The main radiator has an open terminal opposing the input arm across the slot. Also, a feeding part is connected to the input arm of the radiating patch to apply an electrical signal to the radiating patch. Further, wireless devices are integrally mounted on the PCB substrate used for the antenna, thereby achieving a high efficiency and wide-bandwidth dual band patch antenna and a minimal-sized and low-cost wireless communication module.

Abstract: Provided is an apparatus and method for detecting a packet of a zero-padded OFDM signal, which are capable of determining if a packet exists in a reception (RX) signal by comparing a cross-correlation value of an OFDM signal delayed by a predetermined sample time, e.g., a zero-padded sample time, with a power value of the RX signal, thereby increasing a packet detection probability and preventing a false alarm. The packet detecting apparatus includes: a cross-correlation calculator for calculating a cross-correlation value of a reception signal received from the outside and delaying the calculated cross-correlation value by a predetermined sample time; a power calculator for calculating a power value of the reception signal; and a packet detector for determining if a packet exists in the reception signal by comparing the delayed cross-correlation value with the calculated power value, and detecting the corresponding packet.

Abstract: The present invention relates to an apparatus for reconstructing a control message, an apparatus for restoring a control message, a method of reconstructing a control message, and a method of restoring a control message. To this end, an exemplary embodiment of the present invention provides an apparatus for reconstructing a control message, the apparatus including an index parameter generating section that classifies a plurality of first parameters in a control message according to a predetermined criterion to generate group information and generates one or more index parameters corresponding to the group information, and a control message reconstructing section that reconstructs the control message on the basis of the group information and the index parameters. According to the present invention, the size of a control message to be transmitted and received between a base station and a terminal can be reduced, thereby providing more additional services to the terminal through a limited radio resource.

Abstract: A wireless resource allocation apparatus and method which maintain quality of service (QoS) in a wireless communication network are provided. The wireless resource allocation method includes calculating the number of medium access slots (MAS) to be allocated to at least one of a plurality of divided zones of at least one superframe, designating a reference location for MAS allocation to divided zones out of the plurality of divided zones of the superframe based on the calculated number of medium access slots, and allocating the medium access slots to the divided zones based on the designated reference location. Accordingly, more uniform service intervals can be supported, and thus efficient MAS resource allocation can be performed to satisfy media access control (MAC) based QoS requirements.

Abstract: Provided are an apparatus for estimating a phase error and a phase error correcting system using the phase error estimating apparatus. The apparatus includes: a probability value estimating unit for estimating a negative log probability value for each transmission symbol by transforming a soft output information transferred from the outside to a log A posterior probability ratio (LAPPR) value; an APP value calculating unit for calculating a posterior probability (APP) value by applying a negative exponential function to the transmission symbol; an average value deciding unit for deciding an average value for each transmission symbol using the probability information entirely, partially, or selectively according to a probability information type; and a symbol phase estimating unit for estimating a phase of a symbol based on the decided average value.

Abstract: Provided are a smart card controlling apparatus for controlling a smart card which includes a multi-sensor, and a method thereof. The smart card controlling apparatus may include an interface unit that is connected to a USB terminal of the smart card which includes a multi-sensor and recognizing the smart card, and a communication module to control communication between the recognized smart card and a card reader based on short-range wireless communication.

Abstract: A virtual local area network (LAN) control system for controlling at least one virtual LAN through a network accessed by a plurality of terminals includes a terminal, a virtual LAN switch, and a virtual LAN controller. The terminal has a proper identifier address to access the network, or receives a proper identifier address through an external device connected to the virtual LAN switch. The virtual LAN switch sets and provides at least one virtual LAN through the network. When the terminal accesses the virtual LAN controller to request to change the configuration of the virtual LAN, the virtual LAN controller assigns authority to change the virtual LAN to the terminal so as to change from the virtual LAN to which the terminal belongs to another virtual LAN.

Abstract: The present invention relates generally to a voice-based mobile search apparatus and method, and, more particularly, to a voice-based mobile search apparatus and method, which can present optimized search results suitable for a mobile status while allowing a user to conveniently use a search service in a mobile environment. The voice-based mobile search apparatus according to the present invention includes a voice recognition unit for recognizing a user's voice transferred through a mobile terminal and then receiving a query. A status information collection unit collects status information of the mobile terminal and profile information of the user. An answer search unit searches a knowledge base based on the query, and extracts short answers matching the query. An answer provision unit processes the short answers in conformity with the status information of the mobile terminal and the profile information of the user, and provides the processed short answers.

Abstract: A user interface device includes a frame replacement unit configured to replace a frame of an input image signal by a pattern frame at a frame time; a projector module configured to project an image of the image signal with the pattern frame onto a target; an image acquisition unit configured to capture a pattern image of the pattern frame from the image projected onto the target; and an image recognition unit configured to recognize a user interaction by using the captured pattern image.

Abstract: Provided are a method for transmitting data related to a stereoscopic image and a method for playing back a stereoscopic image. The stereoscopic image data transmitting method includes generating stereoscopic image data related to a stereoscopic still image in a predetermined file format (200), and transmitting the generated data. The file format (200) includes a media information unit (220) including the stereoscopic still image (222), control information (212) for controlling playing back the stereoscopic still image, and image composition information (214) indicating a type of composing a stereoscopic image using the stereoscopic still image.

Abstract: A system and method of controlling transmission of adaptive media over handover performed between heterogeneous networks are disclosed. When a mobile terminal moves, it detects the necessity of handover between the heterogeneous networks, determines a target network to which it may perform handover, and transmits handover information to an adaptive media server that controls a transmission rate of adaptive media to previously inform about the handover. Then, the adaptive media adjusts a transmission rate of the adaptive media by using the received handover information, and when the mobile terminal performs handover to the target network, it can receive the adaptive media from the adaptive media server. Accordingly, when the mobile terminal using a real time multimedia service in a wireline/wireless environment in which various accessing techniques are integrated performs handover between heterogeneous networks, a change in quality of experience (QoE) sensed by subscribers due to the handover can be reduced.

Abstract: An apparatus of transmitting a long training field includes: a station number determination unit configured to determine at least one station to be transmitted using transmission data or channel status information; a transmission stream allocation unit configured to determine the number of transmission streams for each of the least one station determined by the station number determination unit; a long training field number calculation unit configured to calculate the number of long training fields required for each of the at least one station determined by the transmission stream allocation unit and determines the least common multiple of the number of calculated long training fields of each station; and a long training field allocation unit configured to allocate the long training fields for each station to subcarriers allocated to each station to correspond to the least common multiple of the determined long training fields.

Abstract: Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP).

Abstract: A mail receipt method based on voice recognition, includes receiving input voice data required for an mail receipt; and recognizing information about the mail receipt from the received input voice data. Further, the mail receipt method based on the voice recognition includes storing the recognized information about the mail receipt to complete the mail receipt.

Abstract: A method and apparatus for allocating upstream channel resources in a hybrid fiber coaxial (HFC) network are provided. A cable modem termination system (CMTS) previously provides cable modems (CMs) with a plurality of burst profiles through an extended interval usage code (IUC) of an upstream channel descriptor (UCD) message, and allocates resources to CMs by using an optimized burst profile according to an upstream channel status, thereby increasing transmission efficiency of an upstream channel.

Abstract: A method of stacking a flexible substrate is provided. The method includes the steps of: preparing a carrier substrate; stacking an adhesive layer on the carrier substrate; and stacking a flexible substrate having at least one image display device on the adhesive layer using a laminating or pressing method. Thus, the flexible substrate is easily fabricated without modification of conventional mass-production equipment for fabricating a display, and thereby a lightweight, thin, and compact flexible display can be realized.