Korean Broadcasting System

Electronics and Telecommunications Research Institute

Munhwa Broadcasting Corporation

Seoul Broadcasting System Co., Ltd.

Korea Educational Broadcasting System

Keunsik Lee

Byung Sun Kim

Jin-Woo Hong

Won-Sik Cheong

Jooyoung Lee

Jeho Nam

Sung-Hwan Park

Hyon-Gon Choo

Sang-Jin Kim

Sangwoo Ahn

Moon-Kyun Oh

Sang-Kwon Shin

Sung-Jun Ahn

Sang-jin Hahm

Hee-Young Jun

Chang-Seob Park

In-Joon Cho

Byung-Sun Kim

Sang-Gyou Lee

Jooho Song

Provided are an apparatus and method for controlling program conversion according to program protection information. The method for controlling conversion of a broadcasting program includes: demultiplexing a broadcasting program into broadcasting program data and program protection information; encrypting the broadcasting program data based on distribution condition of the program protection information when recordation of the broadcasting program data is requested; and recording the encrypted broadcasting program data.

Apparatus and method for controlling conversion of broadcasting program based on program protection information

A hierarchical broadcasting device and method are disclosed. In the hierarchical broadcasting method, a broadcast transmitting device may transmit lower layer broadcast data for an existing broadcast to a broadcast receiving device via a first communication network, and may transmit upper layer broadcast data for an improved broadcast to the broadcast receiving device via a second communication network. In this instance, the broadcast receiving device combines the lower layer broadcast data and the upper layer broadcast data in order to display the improved broadcast.

Device and method for hierarchical broadcasting

Growing community of inventors

Seoul, South Korea

Keunsik Lee