Abstract: A multimedia broadcasting system having a multiple-node structure includes nodes. Each node is coupled to at least one of the nodes, and the nodes include server nodes and multimedia-playing terminal nodes. Each server node is coupled to at least one of the server nodes and provides at least one multimedia content. Each multimedia-playing terminal node receives multimedia content transmitted by a server node of the server nodes and plays the multimedia content. A first server node of the server nodes is coupled to a second server node of the server nodes, and the first server node transmits, via the second server node, a first multimedia content to at least one multimedia-playing terminal node controlled by the second server node. Each multimedia-playing terminal node is a multimedia play terminal including at least one display device or audio playing device.

Abstract: A multimedia broadcasting system having a multiple-node structure includes nodes. Each node is coupled to at least one of the nodes, and the nodes include server nodes and multimedia-playing terminal nodes. Each server node is coupled to at least one of the server nodes and provides at least one multimedia content. Each multimedia-playing terminal node receives multimedia content transmitted by a server node of the server nodes and plays the multimedia content. A first server node of the server nodes is coupled to a second server node of the server nodes, and the first server node transmits, via the second server node, a first multimedia content to at least one multimedia-playing terminal node controlled by the second server node. Each multimedia-playing terminal node is a multimedia play terminal including at least one display device or audio playing device.

Abstract: Application protection systems and methods. The system comprises a security platform device comprising a storage unit and a processing unit. The storage unit comprises a root security key and an application security key. The security platform device receives a unique key from an application. The processing unit encrypts the unique key using the root security key, and determines whether the encrypted unique key conforms to the application security key. If so, the application is allowed to execute.

Abstract: Application protection systems and methods. The system comprises a security platform device comprising a storage unit and a processing unit. The storage unit comprises a root security key and an application security key. The security platform device receives a unique key from an application. The processing unit encrypts the unique key using the root security key, and determines whether the encrypted unique key conforms to the application security key. If so, the application is allowed to execute.