Lg Electronics Inc.

Electronics and Telecommunications Research Institute

Seoul National University

Han Moon

Jin Woo Hong

Seung Kwon Beack

Kyeong Ok Kang

In Seon Jang

Min Soo Hahn

Koeng Mo Sung

Jeong Ii Seo

User certificate method for data broadcasting including the steps of inputting a code recollection starting key on a remote control device during a user watches a data broadcasting, extracting a program title from an Electronic Program Guide table received from a broadcasting station, inputting a successive sequence of keys for user certification, inputting a code recollection end key on the remote control device for finishing the inputting of the sequence of keys, inputting a user code according to a screen displayed after inputting the code recollection key, and storing a record having the user code, the program title and the input key sequence in the code certificate table, whereby permitting easier watching of a data broadcasting program that requires a used certificate.

User certificate system and method for data broadcasting

Provided is a method and apparatus for encoding/decoding a multi-channel audio signal. The apparatus for encoding a multi-channel audio signal includes a frame converter for converting the multi-channel audio signal into a framed audio signal; means for downmixing the framed audio signal; means for encoding the downmixed audio signal; a source location information estimator for estimating source location information from the framed multi-channel audio signal; means for quantizing the estimated source location information; and means for multiplexing the encoded audio signal and the quantized source location information, to generate an encoded multi-channel audio signal.

Method and apparatus for encoding and decoding multi-channel audio signal using virtual source location information

Disclosed is a data broadcasting guidance system and method which guides a user and enhances the availability of the data broadcasting. The data broadcasting guidance system includes means for extracting guidance information while a data broadcasting is displayed; means for requesting a guidance on the data broadcasting; and means for notifying the extracted guidance information in response to the request from the requesting means. Accordingly, the guidance information to navigate the data broadcasting is supplied and the remote controller is controlled more exactly and faster so that the user's attention is drawn to the data broadcasting and the broadcast gets popular.

Bi-directional remote controller and data broadcasting guidance system and method using the same

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Seoul, South Korea

Han Moon