Electronic and Telecommunications Research Institute Patent applications |
Patent application number | Title | Published |
20140379345 | METHOD AND APPARATUS FOR DETECTING SPEECH ENDPOINT USING WEIGHTED FINITE STATE TRANSDUCER - Disclosed are an apparatus and a method for detecting a speech endpoint using a WFST. The apparatus in accordance with an embodiment of the present invention includes: a speech decision portion configured to receive frame units of feature vector converted from a speech signal and to analyze and classify the received feature vector into a speech class or a noise class; a frame level WFST configured to receive the speech class and the noise class and to convert the speech class and the noise class to a WFST format; a speech level WFST configured to detect a speech endpoint by analyzing a relationship between the speech class and noise class and a preset state; a WFST combination portion configured to combine the frame level WFST with the speech level WFST; and an optimization portion configured to optimize the combined WFST having the frame level WFST and the speech level WFST combined therein to have a minimum route. | 12-25-2014 |
20130153757 | WAVEGUIDE PHOTOMIXER - Provided is a waveguide photomixer in which an absorption layer is selectively etched to reduce a junction area. The waveguide photomixer includes a buffer layer disposed on a substrate, a first clad layer disposed on the buffer layer and formed to have smaller width than that of a top surface of the buffer layer, an absorption layer disposed on the first clad layer and formed to have smaller width than that of a top surface of the first clad layer, a second clad layer disposed on the absorption layer and formed to have greater width than that of a top surface of the absorption layer, a contact layer disposed on the second clad layer, a first electrode unit disposed on the buffer layer where the first clad layer is not disposed, and a second electrode unit disposed on the contact layer. | 06-20-2013 |
20130003689 | METHOD AND APPARATUS FOR ALLOCATING RESERVATION RESOURCE FOR RELAY IN WIRELESS COMMUNICATION SYSTEM USING MEDIA ACCESS CONTROL BASED ON RESERVATION - Provided is a communication method of a coordinator in a wireless networks system that uses a reservation-based media access control (MAC). The communication method includes receiving, from a source device, a frame that requests a reservation resource for a relay device, to enable a frame that the source device transmits to a destination device to be relayed via the relay device, and allocating the reservation resource for the relay device, in response to the request. | 01-03-2013 |
20120159015 | DIRECT MEMORY ACCESS CONTROLLER AND OPERATING METHOD THEREOF - Disclosed is an operating method of a direct memory access (DMA) controller having first and second DMA channels. The operating method includes iteratively performing a DMA transfer operation of the first DMA channel based upon loop information and transfer information of the first DMA channel; iteratively performing a DMA transfer operation of the second DMA channel based upon loop information and transfer information of the second DMA channel; reconfiguring the transfer and loop information of the first and second DMA channels; and again performing the iteratively performing a DMA transfer operation of the first DMA channel and the iteratively performing a DMA transfer operation of the first DMA channel based upon the reconfigured transfer and loop information of the first and second DMA channels. | 06-21-2012 |
20120125768 | DISSOLVED OXYGEN MEASUREMENT SYSTEM - Provided is a dissolved oxygen measurement system. The dissolved oxygen measurement system includes a hydrogen storage device storing hydrogen, a first hydrogen fuel cell in which the hydrogen stored in the hydrogen storage device and water supplied from the outside in real time react with each other to generate first electricity energy, a water storage tank storing the water supplied from the outside, a second hydrogen fuel cell in which the water supplied from the water storage tank and the hydrogen stored in the hydrogen storage device react with each other to generate second electricity energy, and a control unit analyzing a difference between the first electricity energy and the second electricity energy. | 05-24-2012 |
20120086599 | SYSTEM AND METHOD FOR INDOOR LOCATION TRACKING USING PSEUDO GPS SIGNAL TRANMSITTER - To track the location of a terminal in an indoor space by using a pseudo GPS signal transmitter, a GPS signal sent from an artificial satellite is received, and a clock signal of the artificial satellite is extracted from the received GPS signal to perform synchronization with the artificial satellite. Once synchronization with the artificial satellite is performed, a pseudo GPS signal is generated, and the transmission time of the pseudo GPS signal is controlled. The GPS signal is sent to the terminal located in the indoor space by a plurality of transmitting antennas based on the controlled transmission time, thereby enabling the terminal located in the indoor space to track its location. | 04-12-2012 |
20120072938 | SYSTEM AND METHOD FOR PROVIDING A SERVICE OR CONTENT BASED ON EMOTIONAL INFORMATION - Provided are an apparatus and method for providing a service or content based on emotional information. A service receiving apparatus extracts and analyzes emotional information of a received service or content to use the corresponding service or content according to an environment that is set. | 03-22-2012 |
20120039233 | APPARATUS SUPPORTING AN MBMS SERVICE - Provided is a method and apparatus that may control a configuration and operation of a network including a base station to support a multicast and broadcast multimedia service in a cellular system and may control an operation of a terminal and the like, and thus, may effectively provide a multimedia service in the cellular system. | 02-16-2012 |
20110142082 | FIBER LASER - Provided is a fiber laser generating Terahertz wave. The fiber laser comprises: a light source generating a laser beam as a pump light; first and second resonators first and second resonators first and second resonators resonating the laser beam into first and second wavelengths; and a coupler separating and supplying the laser beam generated in the light source to the first and second resonators and again feeding back the laser beam having the first and second wavelengths resonated respectively in the first and second resonators to the light source. | 06-16-2011 |
20110138002 | INTERACTIVITY TEST APPARATUS AND METHOD FOR BLOCKING IP APPLICATION SPAM - Disclosed is an interactive test apparatus and method to block an IP application spam. The interactive test apparatus may include a test determining unit to determine whether to perform an interactive test to block an IP application spam, a test level determining unit to determine a level of the interactive test to be performed to a service transmitting unit with respect to an IP application for which the interactive test determining unit determines to perform the interactive test, and testing unit to perform the interactive test at the level corresponding to the IP application based on the level determined by the test level determining unit. | 06-09-2011 |
20110135827 | METHOD OF FABRICATING CARBON NANOTUBES UNIFORMLY COATED WITH TITANIUM DIOXIDE - Provided is CNTs on which TiO | 06-09-2011 |
20110096775 | SYSTEM AND METHOD FOR MULTIPLEXING AND STREAMING CONTENTS - Provided is a system and method for effectively multiplexing and streaming contents. The system may include a plurality of video packetized elementary stream (PES) packetizers to transform, to a video PES packet, elementary stream (ES) data encoded in a video encoder, a plurality of audio PES packetizers to transform, to an audio PES packet, ES data encoded in an audio encoder, a sync information generator to generate sync information for synchronizing each of decoded streams in a process of decoding a transport stream (TS) signal, and the TS packetizer to generate a plurality of program streams using the audio PES packet, the video PES packet, and the sync information, to generate program specific information (PSI) for a configuration of the plurality of program streams, and to insert the PSI between the plurality of program streams in a predetermined period to generate the TS signal. | 04-28-2011 |
20110065430 | METHOD AND APPARATUS FOR PAGING DELEGATION IN HETEROGENEOUS NETWORKS - A method for paging delegation in a gateway of a first network among heterogeneous networks is provided. The gateway of the first network receives a first request message that requests paging delegation of the first network from the terminal, and transmits a second request message that requests paging delegation of the first network to a paging controller of the second network. The gateway receives a first response message including a result value for the paging delegation request from the paging controller, sets paging delegation registration information of the terminal based on the first response message, and transmits a second response message. | 03-17-2011 |
20110058810 | OPTICAL NETWORK UNIT (ONU) AND METHOD OF OPERATING THE ONU - Provided is an Optical Network Unit (ONU) and a method of operating the ONU. The ONU may include: a measurement unit to measure a downstream optical signal strength of downstream data received from an Optical Line Termination (OLT) via an optical splitter; a determination unit to determine an upstream optical signal strength based on the measured downstream optical signal strength; and a communication unit to transmit, to the OLT via the optical splitter, upstream data generated based on the determined upstream optical signal strength. | 03-10-2011 |
20110034195 | RANGING METHOD AND DEVICE - A base station generates a ranging bitmap for indicating whether a ranging code is received through a corresponding ranging channel for each ranging channel, and transmits it to terminals. The terminals check whether the ranging code is successfully transmitted through the ranging bitmap provided by the base station and ranging code identity information included in a ranging response message. | 02-10-2011 |
20100324915 | ENCODING AND DECODING APPARATUSES FOR HIGH QUALITY MULTI-CHANNEL AUDIO CODEC - Provided is an encoding apparatus for a High Quality Multi-channel Audio Codec (HQMAC) and a decoding apparatus for the HQMAC. The encoding/decoding apparatuses for the HQMAC may perform a High Quality Multi-channel Audio Codec-Channel Based (HQMAC-CB) encoding or an HQMAC-CB decoding in accordance with characteristics of inputted audio signals to provide compatibility with a lower channel. | 12-23-2010 |
20100208832 | FRAME STRUCTURE FOR FAST WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR FAST WIRELESS COMMUNICATION USING THE FRAME - A method of configuring a frame for fast wireless communication and an apparatus for fast wireless communication are provided. The apparatus for fast wireless communication includes: a frame configuration unit configuring a frame including transmission data; a demultiplexing unit demultiplexing the transmission data included in the frame into N number of parallel streams (N: positive number greater than 2); N number of coding and modulation units connected in parallel to perform error correction coding and orthogonal frequency division multiplexing (OFDM) with respect to each of the N number of parallel streams; and a multiplexing unit multiplexing outputs of the N number of coding and modulation units into serial streams. | 08-19-2010 |
20100187552 | HYBRID WHITE ORGANIC LIGHT EMITTTNG DEVICE AND METHOD OF MANUFACTURING THE SAME - Provided are a hybrid white organic light emitting diode (OLED) and a method of fabricating the same. A HOMO level difference between a fluorescent emission layer and an electron transport layer in an organic emission layer (OLED) becomes higher than that between the other layers or a LUMO level difference between a fluorescent emission layer and a hole transport layer is higher than that between the other layers, so that a recombination region is restricted to a part of an emission layer to obtain high-efficiency fluorescent light emission. In addition, triplet excitons that are not used in a fluorescent emission layer are transferred to an auxiliary emission layer formed to be spaced apart from a recombination region by a predetermined distance to emit light in a different color from the fluorescent emission layer, so that both singlet and triplet excitons formed in the OLED are used to obtain high-efficiency white light emission. | 07-29-2010 |
20100161686 | METADATA STRUCTURE FOR STORING AND PLAYING STEREOSCOPIC DATA, AND METHOD FOR STORING STEREOSCOPIC CONTENT FILE USING THIS METADATA - Provided is a method for storing stereoscopic contents. The method includes storing stereoscopic video media information related to fragment information of the stereoscopic contents as metadata information required for reproducing the stereoscopic contents, and storing elementary streams of the stereoscopic contents. | 06-24-2010 |
20100157057 | APPARATUS AND METHOD FOR DETECTING PERSON - Provided is a person detecting apparatus and method in an intelligent mobile robot. The person detecting apparatus includes a camera, an observation system status input unit, an encoding unit, a decoding unit, and a person detection unit. The camera is mounted on a robot to output image information. The observation system status input unit determines whether the robot or the camera is in motion. The encoding unit receives the image information to output a bit stream including mode information. The decoding unit decodes the bit stream, extracts a block mode value of each macro block, and stores the same in a two-dimensional array. The person detection unit outputs detection information about a moving person using the determination information provided from the observation system status input unit and the block-mode two-dimensional array provided from the decoding unit. | 06-24-2010 |
20100146276 | METHOD OF RECOVERING AND MANAGING SECURITY-RELATED INFORMATION FOR DOWNLOADABLE CONDITIONAL ACCESS SYSTEM - A method of managing security-related information in a Downloadable Conditional Access System (DCAS) is provided. The method of managing security-related information in the DCAS, the method including: receiving a request for storage of identification information and security-related information from a target server, the security-related information being required to be securely maintained; transmitting a recovery key to the target server in preparation for a loss of the security-related information in the target server; receiving a request for recovery of the security-related information from the target server, when the security-related information is lost; encrypting the security-related information of the target server using the recovery key; and transmitting the encrypted security-related information to the target server. | 06-10-2010 |
20100096713 | MEMS PACKAGE AND PACKAGING METHOD THEREOF - Provided are a Micro Electro-Mechanical System (MEMS) package and a method of packaging the MEMS package. The MEMS package includes: a MEMS device including MEMS structures formed on a substrate, first pad electrodes driving the MEMS structures, first sealing parts formed at an edge of the substrate, and connectors formed on the first pad electrodes and the first sealing parts; and a MEMS driving electronic device including second pad electrodes and second sealing parts respectively corresponding to the first pad electrodes and the first sealing parts to be sealed with and bonded to the MEMS device through the connectors to form an air gap having a predetermined width. | 04-22-2010 |
20100060714 | DMB RECEIVING PORTABLE TERMINAL FOR HUMAN BODY COMMUNICATION, DMB TRANSMITTING METHOD THEREOF, AND HMD APPARATUS AND METHOD FOR DMB RECEPTION USING HUMAN BODY COMMUNICATION - Provided are a DMB receiving portable apparatus for human body communication, a DMB transmitting method thereof, and an HMD apparatus and method for DMB reception using human body communication. The digital multimedia broadcasting (DMB) receiving portable apparatus for human body communication includes: a DMB receiver adapted to perform DMB Rx signal processing on a DMB signal to convert the DMB signal into an audio/video signal, and transmit to a transmission electrode an intermediate frequency (IF) band broadcast signal or a transmission stream (TS) generated in the DMB Rx signal processing; and the transmission electrode adapted to apply the IF band broadcast signal or the TS to the human body as a DMB signal for human body communication. | 03-11-2010 |
20090252249 | DETECTING METHOD OF MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM - A detecting method of a multiple-input multiple-output system includes the steps of: a) canceling interference between transmit signals by assigning weight values to signals received through a plurality of antennas, and determining K optimal antenna signals through channel gain estimation; b) calculating L transmit signal estimation values by quantizing the optimal antenna signals according to a predefined constellation size of L; c) calculating L residual antenna signals, in which interference of the transmit signal estimation values is removed from the received signals using the L Tx signal estimation values; d) calculating L residual transmit signal estimation values by quantizing the L residual antenna signals according to the predefined constellation size; and e) creating K×L estimated transmit signal candidate groups by repeating the calculation of the L residual transmit signal estimation values for each of the K optimal antenna signals, and detecting transmit signals from the estimated transmit signal candidate groups. | 10-08-2009 |
20090184307 | PHASE CHANGE MEMORY DEVICE AND METHOD OF FABRICATING THE SAME - A phase change memory device and a method of fabricating the same are provided. A phase change material layer of the phase change memory device is formed of germanium (Ge)-antimony (Sb)-Tellurium (Te)-based Ge | 07-23-2009 |
20090157624 | SYSTEM AND METHOD FOR INDEXING HIGH-DIMENSIONAL DATA IN CLUSTER SYSTEM - Provided are a system and a method for indexing high-dimensional data in parallel in a cluster environment. The system for indexing high-dimensional data in parallel in a cluster environment includes a Spill-tree creation means for creating a Spill-tree using an sampled N-dimensional feature vector, a feature vector division storage means for distributedly storing the N-dimensional feature vector in a terminal node of the Spill-tree, and a local signature creation means for creating and managing a local signature for the N-dimensional feature vector dispersed into each node of the Spill-tree. | 06-18-2009 |
20090140626 | VACUUM CHANNEL TRANSISTOR AND MANUFACTURING METHOD THEREOF - Disclosed are a vacuum channel transistor including a planar cathode layer formed of a material having a low work function or a planar cathode layer including a heat resistant layer formed of a material having a low work function, and a manufacturing method of the same. In the vacuum channel transistor, electrons can be emitted even when a low voltage is applied to a gate layer, a voltage of an anode layer has a small influence on electron emission of a cathode layer, and instability of emission current is obviated. Accordingly, high efficiency and a long lifespan can be achieved, and thus operational stability is secured. | 06-04-2009 |
20090135826 | APPARATUS AND METHOD OF CLASSIFYING PACKETS - The present invention relates to an apparatus and method of classifying packets that can support a quality of service (QoS) in a network system. An apparatus for classifying packets according to an exemplary embodiment of the present invention includes, a first unit that analyzes input data packets, extracts pluralities of specific fields from the data packets using an analyzed result, and outputs the pluralities of specific fields; pluralities of second units that compare data of a first portion of the pluralities of extracted specific fields with data in a table, determine whether items that satisfy a predetermined condition exist in the table, and output hit signals and pointers indicating positions of the items that satisfy the predetermined condition when the items that satisfy the predetermined condition exist in the table; and a third unit that compares data of a second portion of the pluralities of extracted specific fields and key data including the pointers input from the pluralities of second units and rule data in a is rule table and outputs classes corresponding to the items when the key data and the rule data are matched. | 05-28-2009 |