Abstract: An efficient near video on demand (NVOD) service for various client environments is provided. The NVOD service method for transmitting video data including moving pictures to a plurality of clients in a network includes identifying a relative network bandwidth “m” of a client with respect to a video playout bandwidth, dividing the video data into data segments having different sizes according to the relative network bandwidth “m” and transmitting the data segments to the client through a plurality of channels.

Abstract: An efficient near video on demand (NVOD) service for various client environments is provided. The NVOD service method for transmitting video data including moving pictures to a plurality of clients in a network includes identifying a relative network bandwidth “m” of a client with respect to a video playout bandwidth, dividing the video data into data segments having different sizes according to the relative network bandwidth “m” and transmitting the data segments to the client through a plurality of channels.

Abstract: An apparatus and a method for separating a digital broadcasting signal from data transmitted using an IP network, transmits an IP packet at wire-speed by performing a comparison of an IP address in a hardware scheme without a special memory when separating Internet data and digital broadcasting data (MPEG-TS) in an IP network-based digital broadcasting signal process unit.

Abstract: An apparatus for controlling a digital transport stream on a digital settop box has independent properties in network construction between a broadcasting HE equipment or VOD server and the settop box, by controlling network interfaces and streams for both an ATM network and an IP network on one xDSL settop box. The apparatus can smoothly cope with network construction by providing services in an ATM mode in an environment requiring high quality of service, and in an IP mode in an environment requiring a low network building cost. When the broadcasting is connected to the ATM network and the VOD is connected to the IP network, the apparatus can provide services without incorporating the networks. In addition, as compared with the ATM mode, the IP mode processes decapsulation and IP routing of an MPEG transport stream packet in a software type, and thus does not require special hardware. That is, both the ATM mode and the IP mode can be controlled in the same hardware construction as the ATM mode.

Abstract: A method for servicing digital broadcasting, capable of defining a control message necessary for servicing digital broadcasting of a SD (Standard) level and a HD (High Definition) level through, a network of, for example, a x Digital Subscriber Line, by directly requesting, at a client, a digital broadcasting server for a session connection, and establishing a session by receiving a confirmation from the digital broadcasting server. Also, a channel change can be requested by directly requesting, at the client, the digital broadcasting server for a channel change, and changing a channel by receiving a confirmation from the digital broadcasting server. Other direct client-server requests and confirmations include a message for checking a status of the client and a session termination.