Electronics and Telecommunications Research Institute

Chunglae Cho

Jin Tae Kim

Kwang Roh Park

Kyeong Deok Moon

Jun Hee Park

Ji Yeon Son

Sung-Soo Kim

Yun Kyung Park

Dong Hee Kim

Yeon Ju Oh

Kyung Shik Lim

Hyoung Su Kim

Kyung Ho Chae

Seung Hyun Yoon

Hong Seok Jeon

Seungjae Shin

a method and an apparatus for managing a cache for storing content by determining popularity of the content based on content requests received during a current time slot for the content; transmitting information about the popularity of the content to a time-to-live (TTL) controller and receiving, from the TTL controller, TTL values for each popularity level determined by the TTL controller based on the information about the popularity; and managing the content based on the TTL values for each popularity level are provided.

Method and apparatus for TTL-based cache management using reinforcement learning

A method and apparatus provides a multi-screen based multi-dimensional game service using a home network and a home server. The method includes determining a resolution of a game screen to be served based on terminal information provided from a user terminal, storing a view on a user location in a multi-dimensional shared game space as a game session, generating an object for the view based on the determined resolution, performing multi-view rendering using multi-dimensional scene data and a user game input, capturing video and audio generated through the multi-view rendering, encoding the captured video and audio, and transmitting encoded video and audio to the user terminal.

Method and apparatus for providing a multi-screen based multi-dimension game service

A system for providing virtual AV service includes a local device middleware (LDM) media server which stores AV contents and a resource cooperation server (RCS) which separates the AV contents from the LDM media server into video contents and audio contents. The video contents and the audio contents are reproduced by an LDM video renderer and an LDM audio renderer, respectively. An LDM control point (LDMCP) controls the LDM media server and the LDM media renderers using the LDM protocol and a virtual device ensembler (VDE) controls the RCS and the LDMCP.

System and method for providing virtual AV service

An apparatus and method for managing and controlling UPnP devices in a home network over an external Internet network. The apparatus comprises a client connected to the external Internet network, and a UPnP proxy server for controlling and managing the UPnP devices in the home network. The client includes a stub for providing the same application program interface (API) as a UPnP API to a user, managing information of the UPnP devices and processing a device control command from the user, and a push client for transferring the device control command processed by the stub to the UPnP proxy server and an event message from the UPnP proxy server to the stub, respectively. The UPnP proxy server includes a bridge for managing the UPnP devices in the home network and controlling a specific one of the UPnP devices in response to the device control command from the client, and an agent for transferring the device control command from the client to the bridge and a result of execution of the device control command and the event message from the bridge to the client, respectively.

Apparatus and method for managing and controlling UPnP devices in home network over external internet network

Growing community of inventors

Daejeon, South Korea

Chunglae Cho