Samsung Electronics Co., Ltd.

University-Industry Cooperation Group of Kyung Hee University

Korean Broadcasting System

Hee-jean Kim

Jae-jun Lee

Dae-jong Lee

Hong-seok Park

Yong-seok Jang

Yu-sung Joo

Kyu-Heon Kim

Gwang-Hoon Park

Weon-il Jin

Doug-Young Suh

Tae-sung Park

Do-young Joung

Jang-Won Lee

Yong-tae Kim

Ga-hyun Ryu

Maeng-hee Sung

Bae-eun Jung

Nam-guk Kim

Jin-mo Kang

Moon-seok Jang

Jung-han Kim

Gil-yoon Kim

Sang-jin Hahm

Byung-sun Kim

Keun-sik Lee

Method and apparatus for processing multimedia data received via different networks by synchronizing time stamps of video frames of multimedia data received via the different networks using time codes in the multimedia data.

Receiving apparatus and receiving method thereof

Provided are method and apparatus for transmitting and receiving a multimedia streaming service via a network. The method of providing a multimedia streaming service includes: dividing encoded data of a video including at least one of a two-dimensional (2D) video and a three-dimensional (3D) video into fragments; determining at least one of 3D signaling information for each fragment and relationship information to be used when the video refers to other videos; and continuously transmitting the fragments including the property information regarding the fragments and encoded video data.

Method for providing fragment-based multimedia streaming service and device for same, and method for receiving fragment-based multimedia streaming service and device for same

A method and apparatus for reproducing a multimedia content are provided. The apparatus includes: a receiver which is configured to receive, through different paths, a first signal including a left-side image and a first synchronization information item, and a second signal including a right-side image and a second synchronization information item; and a signal processor which is configured to synchronize and reproduce the left-side image and the right-side image using the first synchronization information item and the second synchronization information item.

Transmitter and receiver for transmitting and receiving multimedia content, and reproduction method therefor

A transmitting device which transmits a plurality of streams is provided. The transmitting device comprises: a first multimedia data consisting of multimedia contents; a first synchronization information for synchronization of a second multimedia data consisting of multimedia contents; a first transmitting data including a first signaling data for the first multimedia data and a second signaling data for the second multimedia data, a data generating unit generating a second transmitting data including a second synchronization information for synchronization of the second multimedia data and the first multimedia data, a first transmitting unit transmitting the first transmitting data supplied from the data generating unit to a receiving device through a broadcasting network, and a second transmitting unit transmitting the second transmitting data supplied from the data generating unit to the receiving device through an IP network.

Transmitting device, receiving device, and transceiving method thereof

A user key allocation method for broadcast encryption is provided. The user key allocation method includes generating a plurality of subsets by dividing one group including a plurality of nodes to sub-groups and allocating key sets with respect to the subsets, respectively. The nodes included in the subset may be odd nodes and even nodes of the nodes of the group. The nodes are arranged so that privileged nodes are consecutive or there is only one privileged node. Accordingly, it is possible to reduce the data size transmitted from the server to the nodes by constituting one or more subsets from the nodes consecutively arranged and providing key sets with respect to the subsets.

User key allocation method for broadcast encryption

Growing community of inventors

Yongin-si, South Korea

Hee-jean Kim