Abstract:
In a method for providing content-related information based on a digital watermark and fingerprint, the method includes: receiving a request for content-related information from a client terminal; using a watermark and a fingerprint of content to retrieve the requested content-related information from a database; and transmitting the retrieved content-related information to the client terminal.
Abstract:
Provided is a node control apparatus communicating an external Internet Protocol (IP) network and managing a plurality of mobile nodes included in a local network. The node control apparatus manages information relating to the plurality of mobile nodes, each equipped with one or more wireless interfaces, configures one or more groups by classifying the plurality of mobile nodes according to the type(s) of the wireless interface(s) of each of the plurality of mobile nodes, selects a representative node for each of the groups, and allows the member nodes of each of the groups to communicate with the external IP network via their representative node. Therefore, it is possible to minimize power consumption by selectively using a wireless interface for use in connecting to the representative node of each of the groups.