| KOREAN BROADCASTING SYSTEM Patent applications |
| Patent application number | Title | Published |
|---|
| 20120128070 | Video Encoding Method for Encoding Division Block, Video Decoding Method for Decoding Division Block, and Recording Medium for Implementing the Same - Disclosed are a method of encoding a division block in video encoding and a method of decoding a division block in video decoding. An input picture is divided into encoding unit blocks. The coding unit (CU) blocks are divided into sub-CU blocks. The sub-CU blocks are encoded by selectively using at least one of intra prediction encoding and inter prediction encoding. A decoding process is performed through a reverse process of the encoding method. When pixel values of a CU block are encoded in video encoding, the flexibility in selecting an encoding mode is increased and the efficiency of encoding is increased. | 05-24-2012 |
| 20110261254 | APPARATUS AND METHOD FOR CONTROLLING CONVERSION OF BROADCASTING PROGRAM BASED ON PROGRAM PROTECTION INFORMATION - 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. | 10-27-2011 |
| 20100014666 | Method and Apparatus for Protecting Scalable Video Coding Contents - Disclosed are a method and apparatus capable of reducing the computational complexity of encryption and decryption by encrypting only data of scalable video coding contents for each coding layer in terms of temporal, spatial, and SNR scalabilities to provide a service for protected scalable video coding contents, and capable of protecting contents by generating and distributing an encryption key for encryption and decryption depending on a class of a contents consumer. | 01-21-2010 |
| 20090110133 | DISTRIBUTED TRANSLATOR WITH RECEIVED SIGNAL SYNCHRONIZATION AND METHOD THEREOF - A distributed translator and an operation method of the distributed translator are proposed. The distributed translator includes: a demodulator demodulating a received signal to extract a transport stream and synchronization information from the received signal; a modulator generating an output frame based on the synchronization information to modulate the output frame; and a transmitter transmitting the modulated output frame according to a transmission timing. | 04-30-2009 |
| 20080209231 | Contents Encryption Method, System and Method for Providing Contents Through Network Using the Encryption Method - Disclosed are a contents encryption method, and a system and method for providing contents through a network using the contents encryption method. In order to provide contents through the network more securely, at least one piece of contents and corresponding metadata are recursively multi-encrypted at least once, and encrypted data are then provided. In particular, encrypted positions of the contents and corresponding decryption information are expressed as metadata, and the metadata include parameter information on respective encryption tools used for multi-encryption, an order of the applied encryption tools, positions of the encryption tools, and a list of encryption tool substitutes. The metadata are provided when the contents are provided. Therefore, the contents provider and receiver can more safely and systematically manage the metadata including contents decryption information, and multimedia are efficiently protected, managed, and controlled. | 08-28-2008 |
