Munhwa Broadcasting Corporation

Electronics and Telecommunications Research Institute

Korean Broadcasting System

Seoul Broadcasting System Co., Ltd.

Korea Educational Broadcasting System

Hee-Young Jun

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

Dae-Jin Kim

Keunsik Lee

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

Disclosed is an MPEG data frame and a transmitting and receiving system using the MPEG data frame for enhancing receiving performance of receiver which moves or is stationary. The digital TV broadcasting data frame according to the preferred embodiment of the present invention comprises a data frame which includes at least one data field which has 313 data segments. The first data segment of the data field is a data field sync signal which includes a training data sequence used for synchronization at the receiver, and the other 312 data segments each include a 188-byte transport packet and 20-byte error correction data. Therefore, when null packets are input to the 8 VSB transmitter, 2-level training sync signals are used as training data for an equalizer at the receiver so as to increase receiving performance of a receiver that moves or is stationary.

MPEG data frame and transmit and receive system using same

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Seoul, South Korea

Hee-Young Jun