Korea Electronics Technology Institute

Jong Sul Lee

Seok Pil Lee

Kyoung Ro Yoon

Tae Bum Lim

The present invention relates to a method for asynchronous multimedia content retrieval, which can be applied to TV-Anytime standard or MPEG standard. In summary, an asynchronous multimedia retrieval method is provided as including: a client establishing the first session as requesting to the server; transmitting to the server the retrieval inquiry message for contents that the server needs; terminating the first session after the retrieval inquiry; establishing the second session and requesting to the server the result for the retrieval inquiry at a certain point in time that the previously set time has passed; and receiving the retrieval result from the server and terminating the second session.

Method for asynchronous multimedia retrieval

The present invention provides a method of providing a user information-based search using a get_Data operation in TV-ANYTIME service. In the user information-based search provision method of the present invention, a user information (PersonalInformation) element is added as an element of the get_Data operation. A request message of the get_Data operation is received. User information is extracted from the user information (PersonalInformation) element in response to reception of the request message. A user information-based search is conducted using the extracted user information. Results of the user information-based search are transmitted using a response message of the get_Data operation. Accordingly, the present invention is advantageous in that a client provides user information to a service provider using a get_Data operation, and the service provider can search for contents suitable for each user in consideration of the user information.

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Yongin-si, South Korea

Jong Sul Lee