Abstract: A method, medium, and system for reserving resources in a mobile network. A mobile node reports a start of a handover to a present access router if the handover of the mobile node occurs, and the previous access router transmits specified session information to a candidate access router that has a possibility handling the mobile node's handover. A candidate crossover router, which performs a resource reservation work on a new path and a resource release on the previous path, is searched, and a localized resource reservation is established by exchanging a specified resource reservation message before the handover is completed if the candidate crossover router is determined. Accordingly, duplication of resources can be prevented, and a prompt resource reservation can be achieved during the handover.

Abstract: The present invention relates to the information protection of digital content transferred by streaming and download service through wire or wireless Internet network. The information protection system in this invention suggests a drastic prevention method of copyrights infringement such as illegal copy and unauthorized distribution of digital content, by using of the encryption, decryption, distribution, and authentication technologies. This invention suggests the control technology of general viewer program, not the specific viewer program for information protection, using a network filter driver for streaming and file system filter driver for download service. The main function of network and file system filter driver is the filtering operation such as a hooking, changing, decrypting, and restoring of message and data packet, and transferring to the viewer program.

Abstract: In an edge router controlling traffic flows using a buffer in a network handling both real-time traffic and data application traffic, a buffer management-based transmission includes receiving a packet from the network and deciding whether the received packet is a choke packet. If the received packet is not the choke packet, then the received packet is classified into a predetermined traffic class. The buffer is divided logically, and a buffer area of the logically divided buffer is assigned to the traffic class into which the received packet is classified. Control of transmission of the received packet includes either dropping the received packet or storing the received packet in the buffer area assigned to the classified traffic class. Accordingly, the present invention can continuously guarantee appropriate bandwidth required for real-time traffic and, at the same time, prevent a situation in which no bandwidth is assigned to data application traffic.

Abstract: An asynchronous transfer mode LAN switching hub device using IEEE P1355 system and its control method.