Lg Electronics Inc.

Soung Hyun Um

Byung Jin Kim

Kang Soo Seo

Sung Wan Park

Jea Yong Yoo

Hyung Sun Kim

Mi Hyun Kim

Jang Hui Cho

Eun Sil Hyun

Byeong Moon Jeon

Seung Wook Park

Ji Ho Park

Dong Seok Kim

Tae Ho Kim

Doe Hyun Yoon

Woo Seong Yoon

Chang Bum Kim

Sung Ryun Cho

Alexandre Limonov

Alexandre Stechkine

Kang-Soo Seo

Byung-Jin Kim

Byung Wook Kim

Limonov Alexandre

Doe Hun Yoon

Ki Man Kim

Kang Soo 606-503 Chowon Hanyang Apt 897-5 Seo

Byung Jin 111-204 Hansol Chungu Apt Kim

Byung Jin 111-204 Kim

Kang Soo 606-503 Chowon Seo

A method and an apparatus for retrieving information for managing video data involving link information associating metadata with the video data. A metadata indicator is used to indicate that metadata exists in a stream with the linking information. Link information also associates the metadata with location information to identify where additional information on the video data, which is described by the metadata, may be found. Using the method or apparatus, a single metadata unit is able to be associated with a plurality of video data units, or a plurality of metadata units are able to be associated with a single video data unit, in order to provide more information on the video data.

Recording medium containing moving picture data and additional information thereof and reproducing method and apparatus of the recording medium

The present invention relates to a recording medium containing moving picture data and additional information thereof and to reproducing method and apparatus of the recording medium. The present recording medium has script files including additional information about moving picture data, e.g., scene descriptive text and introduction of characters, etc. In addition, information linking each script file with a section of moving picture data to be presented with contents of the script file is included in a link data file or is contained in a filename of the script file. In reproduction of the recording medium, a script file linked with presently reproduced moving picture data section is determined and searched for based on the link data file or every filename of the script files, and contents of the found script file are presented together with the presently reproduced moving picture data. Furthermore, previously presented additional information is removed depending on data or filename of the found script file.

A method and an apparatus of decoding a video signal are provided. The present invention includes the steps of parsing first coding information indicating whether a residual data of an image block in the enhanced layer is predicted from a corresponding block in the base layer, from the bitstream of the enhanced layer, and decoding the video signal based on the first coding information. And, the step of parsing includes the step of performing modeling of the first coding information based on second coding information indicating whether prediction information of the corresponding block in the base layer is used to decode the image block in the enhanced layer. Accordingly, the present invention raises efficiency of video signal processing by enabling a decoder to derive information on a prediction mode of a current block in a decoder instead of transferring the information to the decoder.

Method for modeling coding information of a video signal to compress/decompress the information

Method and apparatus for retrieving metadata for managing video data

The recording medium has a data structure for managing reproduction of data recorded on the recording medium. A navigation area stores at least one navigation file, and the navigation file includes at least one navigation command group. At least one navigation command group includes at least one navigation command for managing reproduction of at least video data recorded on the recording medium.

Recording medium having data structure for managing reproduction of at least video data recorded thereon and recording and reproducing methods and apparatuses

A recording medium, method and apparatus for managing data are discussed. According to an embodiment, the present invention provides a method of reproducing main data and additional data. The method includes receiving the additional data associated with the main data, the additional data being divided into a plurality of segment units; and reproducing the additional data in a synchronous manner with the main data using time information if indication information indicates a presence of the time information. The time information indicates a presentation time of the additional data with respect to the main data. The main data and the additional data are reproduced according to management data, the management data including link information for linking the main data and the additional data.

Method for ensuring synchronous presentation of additional data with audio data

A method and apparatus for reproducing video data are discussed. According an embodiment, the apparatus includes a controller configured to receive a request of a path change, the controller configured to control the path change from a current path to the request path among the multiple reproduction paths by identifying path information in an entry point map, the path information associated with an entry point in the video data, and the entry point map having an entry point fine table including fine information of at least one entry point and an entry point coarse table including coarse information of the at least one entry point, the fine information and coarse information identifying a presentation time and an address for the at least one entry point.

Recording medium having data structure for managing recording and reproduction of multiple path data recorded thereon and recording and reproducing methods and apparatus

A method for managing a reference picture with a decoder is disclosed. The method for managing a reference picture includes storing a decoded picture including quality base picture and quality enhanced picture in a buffer, marking the quality base picture and the quality enhanced picture as a reference picture, marking the quality base picture as distinct information, managing the quality base picture and the quality enhanced picture using an adaptive memory management method or a sliding window method.

Method and apparatus for managing a reference picture

A method and an apparatus of decoding a video signal are provided. The present invention includes the steps of parsing first coding information indicating whether a residual data of an image block in the enhanced layer is predicted from a corresponding block in the base layer, from the bitstream of the enhanced layer, and decoding the video signal based on the first coding information. And, the step of parsing includes the step of performing modeling the first coding information based on second coding information indicating whether prediction information of the corresponding block in the base layer is used to decode the image block in the enhanced layer. Accordingly, the present invention raises efficiency of video signal processing by enabling a decoder to derive information on a prediction mode of a current block in a decoder instead of transferring the information to the decoder.

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Kyunggi-do, South Korea

Soung Hyun Um