| Patent application number | Description | Published |
|---|
| 20090147759 | METHOD AND APPARATUS FOR SUPPORTING MOBILITY OF NODE USING LAYER 2/LAYER 3 ADDRESSES - Provided is a network-based mobility supporting method for supporting mobility of a node not having a mobility supporting function. The network-based mobility supporting method which is performed by a plurality of agents that connect a plurality of access networks to an Internet protocol core network integrating the plurality of access networks, includes: acquiring address information of a mobile node connected to an access point from the access point; transmitting the address information of the mobile node and layer 3 address information of an agent to a management unit which is located on the Internet protocol core network and manages the plurality of access networks, and registering a location of the mobile node; transmitting the layer 3 address information of the correspondent agent to the mobile node, in order to allow the mobile node to transmit a data packet to the agent; and receiving and transmitting the data packet between the mobile node and a correspondent node in consideration of the address information of the mobile node and information registered in the management unit. Therefore, it is possible to provide high-speed mobility to a mobile node. | 06-11-2009 |
| 20090154368 | METHOD AND APPARATUS FOR MEASURING QoE GUARANTEED REAL-TIME IP-MEDIA VIDEO QUALITY - A method and apparatus for measuring the quality of a video provided in an IP network based media service is provided. The apparatus for measuring Quality of Experience (QoE) guaranteed real-time Internet Protocol (IP)-media video quality, includes: a receiver receiving a transmission video provided through an IP network service platform and an original video corresponding to the transmission video, and extracting frames of the transmission video and the original video; a detector comparing the frames of the transmission video and the original video in real time to obtain a difference between the frames of the transmission video and the original video and detecting a matching segment between the transmission video and the original video; and a measurement unit calculating a QoE parameter using the frames of the transmission video and the original video which correspond to the matching segment. | 06-18-2009 |
| 20090316650 | FAST HANDOVER METHOD USING L2/L3 COMBINATION - Provided is a fast handover method using a layer 2 (L2) and layer 3 (L3) combination. When a mobile node moves from a present region to another region, fast handover of the mobile node is provided using a location update function between handover control agents (HCAs), and data bicasting from an old HCA wherein the mobile node performs handover to a new HCA. | 12-24-2009 |
| 20100135487 | BUNDLE AUTHENTICATION SYSTEM AND METHOD - There is provided a bundle authentication system and method that can perform network access authentication and authentication at a service request in a next generation network utilizing a Bundled Authentication Key (BAK) generated by using an Extended Master Session Key (EMSK) that is an encryption key generated during access authentication. | 06-03-2010 |
| 20100158406 | METHOD FOR RESTORING TRANSPORT ERROR INCLUDED IN IMAGE AND APPARATUS THEREOF - In an image transmission error restoring method and an apparatus using the same, a received image frame is divided into a plurality of blocks and each block is divided through a multi-resolution process. After the multi-resolution process, an error-occurred region is searched and the searched error-occurred region is recovered based on information selected from among global pixel information and local pixel information according to complexity of each block. | 06-24-2010 |
| 20110055176 | MEDIA MEDIATOR SYSTEM AND METHOD FOR MANAGING CONTENTS OF VARIOUS FORMATS - Provided is a system and method that may encode various formats of contents to a single format and thereby manage the contents, and may transform the contents to a format corresponding to a request of a third party or an end user to distribute the content. A media mediator system of managing various formats of contents may include: a service manager to receive a content and metadata of the content from a content provider; a metadata manager to register the content using the metadata, and to store the metadata of the registered content; a database manager to store and manage information associated with the content; and an encoding manager to schedule an encoding sequence of the content, and to sequentially encode the content based on a scheduling result. | 03-03-2011 |
| 20110055352 | SYSTEM AND METHOD FOR BROKERING CONTENT AND METADATA OF CONTENT ON NETWORK - Provided is a method and system of automatically uploading a content and encoding the uploaded content using various formats to provide the encoded content to a third party or an end user. A system for brokering a content and metadata of the content over a network may include: a syndication portal to register a content provider, and to transmit address information for a feed to the content provider; an aggregator to verify whether an added content exists in the feed of the content provider, and to upload the content and the metadata of the content when the added content exists; and a media mediator to register the uploaded content, to encode the content, and to provide the encoded content to an end user. | 03-03-2011 |
| 20110069763 | SCALABLE VIDEO ENCODING/DECODING METHOD AND APPARATUS FOR INCREASING IMAGE QUALITY OF BASE LAYER - Provided are a scalable video encoding/decoding method and apparatus, which may improve an image quality of a base layer while not using an anti-aliasing filter. The scalable video decoding apparatus includes an entropy decoding unit to decode an image received from an encoding apparatus, a de-blocking filter to reduce a block distortion of the decoded image, a motion compensation unit to apply a motion compensation scheme to an image passing through the de-blocking filter, a half-pel filter to apply a half-pel compensation scheme to an image where the motion compensation scheme is applied by the motion compensation unit, and an output unit to output an image where the half-pel compensation scheme is applied by the half-pel filter. | 03-24-2011 |
| 20110072358 | REMOTE CONTROLLER SUPPORTING SYSTEM AND METHOD FOR HANDLING EVENT IN WEB ENVIRONMENT - Provided is a system and method that may perform various operations on a website according to combinations of buttons on a remote controller. A system for supporting a remote controller may include: a profile storage unit to store a plurality of profiles containing functions of the remote controller and information associated with the functions of the remote controller; a receiver to receive an input signal from the remote controller, and to interpret an event of the input signal based on a profile corresponding to the remote controller; and a presentation unit to access a web server, to transform, to a predetermined behavior, at least one event interpreted by the receiver, and to request the web server for an operation corresponding to the behavior. | 03-24-2011 |
| 20110138019 | SYSTEM AND METHOD FOR PROVIDING MULTI-LAYERED CONTENT USING PLURALITY OF SERVERS - Provided is a system and method for providing a multi-layered content that may divide a content encoded using a scalable coding scheme, into a plurality of quality groups having different quality levels, assign corresponding servers to the plurality of quality groups, and transmitting the quality groups, increasing a number of transmission sessions. | 06-09-2011 |
| 20110141289 | METHOD AND SYSTEM FOR ASSESSING QUALITY OF MULTI-LEVEL VIDEO - Provided is a method of assessing an image quality of each of a base layer and an enhanced layer using a different scheme to assess a quality of a multi-level video based on assessment results. A multi-level video quality assessing system includes: a bitstream extractor to separate a multi-level video into a base layer bitstream and an enhanced layer bitstream; a base layer quality assessment module to generate quality assessment result information of a base layer image by assessing an image quality of base layer bitstream; an enhanced layer quality assessment module to generate quality assessment result information of an enhanced layer image by assessing an image quality of enhanced layer bitstream; and a final video quality assessment module to assess a quality of experience (QoE) of multi-level video based on quality assessment result information of each of the base layer image and the enhanced layer image. | 06-16-2011 |
| 20110149775 | SYSTEM AND METHOD FOR INTERWORKING BETWEEN MEDIA QUALITY ASSESSMENT AT TERMINAL DEVICE AND QOS CONTROL IN TRANSPORT NETWORK - Provided is a service quality of experience (QoE) predicting and managing system. The service QoE predicting and managing system may include a media quality measurement system (MQMS) to measure a QoE of media, and a quality of service (QoS)/QoE control system (QCS) to measure QoS parameter information, to predict the QoE based on the measured QoS information, to calculate a QoS parameter adjustment value by comparing and analyzing the QoE measured by the MQMS and the predicted QoE, and to transmit the calculated QoS parameter adjustment value to a service quality control system (SCS). | 06-23-2011 |
| 20110153731 | METHOD OF UPDATING CONTENT INFORMATION ASSOCIATED WITH CONTENT BEING SERVICED IN STREAMING SERVER GROUP - Provided is a method of updating content information associated with a content being serviced in a streaming server group. The content information updating method may include: monitoring whether a new streaming server joins a streaming server group servicing the same category of a content; updating content information associated with the content being serviced in the streaming server group, and transferring the updated content information to a client when the new streaming server joins; and providing a content service via the new streaming server according to a request of the client. | 06-23-2011 |
| 20110153812 | APPARATUS AND METHOD FOR DISTRIBUTING CLOUD COMPUTING RESOURCES USING MOBILE DEVICES - An apparatus for distributing mobile resources in a cloud computing environment includes: a resource register configured to analyze, when a request for mobile resource registration is inputted by a user, the requested resource and confirm if the resource is registerable; a provisioning manager configured to create a MVO, when the mobile resource is a registerable resource, and register the mobile resource; a metadata repository configured to store metadata information regarding the registered mobile resource; and a resource manager configured to control the provisioning manager, when the resource register receives a request for the resource registration, so as to create a MVO, register the resource, and store metadata regarding the registered mobile resource information. | 06-23-2011 |
| 20110154150 | FAST STOCHASTIC DECODE METHOD FOR LOW DENSITY PARITY CHECK CODE - Provided is a fast stochastic decoding method for a low density parity check (LDPC) code. The decoding method may include decoding the LDPC code based on an LDPC decoding scheme, using a message expressed by a log-likelihood ratio (LLR) value. | 06-23-2011 |
| 20110154172 | APPARATUS AND METHOD FOR ASSESSING IMAGE QUALITY IN REAL-TIME - An apparatus and method for assessing image quality in real-time in consideration of both a coding error generated in an image processing process and a packet error generated in an image transmission process are provided. The apparatus for assessing image quality in real-time includes: an image quality measurement unit measuring image degradation generated in processing an image; a packet degradation detection unit detecting a packet error generated in transmitting the image; and final outcome drawing unit finally assessing the quality of the image in consideration of both a degradation degree of the image measured by the image quality measurement unit and the packet error measured by the packet degradation detection unit. | 06-23-2011 |
| 20110154396 | METHOD AND SYSTEM FOR CONTROLLING IPTV SERVICE USING MOBILE TERMINAL - Provided is a method for providing an Internet Protocol television (IPTV) service using a mobile terminal. A mobile terminal of an IPTV service control system may include a viewpoint recognition unit to obtain information about a viewpoint where a user is viewing, a viewpoint processing unit to compute position coordinates corresponding to the viewpoint by comparing a screen displayed on the mobile terminal with the information about the viewpoint, and a set-top control client to display the same screen as a screen of a TV on the to mobile terminal, and to enable the set-top box to display a selection icon on the same position as a position indicated by the position coordinates of the TV. | 06-23-2011 |
| 20110154409 | METHOD AND SYSTEM TO PROVIDE VIDEO ON DEMAND (VoD) SERVICE USING CONTENTS HAVING MULTIPLE BITRATES - Provided is a method and system of providing a Video on Demand (VoD) service using contents of multiple bitrates that may provide a content encoded at a different bitrate according to a bandwidth of each access network and thereby prevent quality degradation occurring due to a limit of a bandwidth. | 06-23-2011 |
