Abstract: A method and apparatus for protecting against copying high definition (HD) contents transmitted in a wireless HD (WiHD) network by using a WiHD source or sink device, the method including: determining a type of copy protection of contents transmitted in the WiHD network; calculating accumulatively a number of media access control (MAC) sub-packets as a input counter information, wherein the MAC sub packets constitute a MAC payload including the contents; packetizing the type of copy protection and the input counter information into a MAC packet; and transmitting the MAC packet to a WiHD sink device.

Abstract: Provided is a packet processing apparatus and method for audio/video (AV) data transmission, in which a simple protocol optimized for AV data transmission is used. Information distinguishing a data packet from a control packet may be included in a data link layer packet header, so that a data packet and a control packet may be distinguished from each other and thereby may be processed according to different procedures.

Abstract: In a home network to which a client device and a plurality of server devices are connected, using a web browser in a client device and determining whether the plurality of devices are devices which support protocols required by the client device, respectively. Accessing the plurality of devices and obtaining and receiving a corresponding Internet protocol address through a process for receiving a predetermined Internet protocol address for each of the accessed devices is a device which supports the desired protocols. Receiving an address determined by the client device for each of the accessed devices which does not support the desired protocols. Creating a device page for displaying the plurality of devices, by arranging the addresses on the web browser.

Abstract: Provided are a method and apparatus for generating a data frame. The method includes generating subframes from at least one media access control (MAC) service data unit (MSDU); generating a retransmission policy field for recording a policy related to a retransmission request, against an error occurring while the subframes are being transmitted, with regard to each of the subframes; and generating the data frame by using the subframes and the retransmission policy field which is generated with regard to each of the subframes.

Abstract: In a multi-media system for transferring and receiving a transport stream (MPEG2-TS) between a receiver and a recording/reproducing device using the IEEE 1394 interface, a program number command of a selected program is transferred from the receiver to the recording/reproducing device during a recording/playback mode, and the recording and playback are controlled by only one input device for the receiver. Therefore, other devices of the multi-media system can be controlled without extra hardware added to the receiver. Further, an on-screen graphic (OSG) is provided by the receiver, resulting in a consistent OSG.

Abstract: In a multi-media system for transferring and receiving a transport stream (MPEG2-TS) between a receiver and a recording/reproducing device using the IEEE 1394 interface, a program number command of a selected program is transferred from the receiver to the recording/reproducing device during a recording/playback mode, and the recording and playback are controlled by only one input device for the receiver. Therefore, other devices of the multi-media system can be controlled without extra hardware added to the receiver. Further, an on-screen graphic (OSG) is provided by the receiver, resulting in a consistent OSG.

Abstract: In a home network to which a client device and a plurality of server devices are connected, using a web browser in a client device and determining whether the plurality of devices are devices which support protocols required by the client device, respectively. Accessing the plurality of devices and obtaining and receiving a corresponding Internet protocol address through a process for receiving a predetermined Internet protocol address for each of the accessed devices is a device which supports the desired protocols. Receiving an address determined by the client device for each of the accessed devices which does not support the desired protocols. Creating a device page for displaying the plurality of devices, by arranging the addresses on the web browser.

Abstract: In a home network to which a client device and a plurality of server devices are connected, using a web browser in a client device and determining whether the plurality of devices are devices which support protocols required by the client device, respectively. Accessing the plurality of devices and obtaining and receiving a corresponding Internet protocol address through a process for receiving a predetermined Internet protocol address for each of the accessed devices is a device which supports the desired protocols. Receiving an address determined by the client device for each of the accessed devices which does not support the desired protocols. Creating a device page for displaying the plurality of devices, by arranging the addresses on the web browser.

Abstract: An apparatus and method for generating distributed traffic in nodes coupled to a bus, wherein one node reads information on other nodes and generates traffic, includes a bus interface unit and a control unit receiving signals. The signals are transmitted from the nodes via the bus interface unit, to detect a bus reset and determine the number N of nodes coupled to the bus and a node ID number K of a node having the control unit. The information on the nodes is read in a predetermined order, starting from a reference node with node ID number K+M, wherein M is an integer larger than 1?K and smaller than N?K. The apparatus controls the order of generation of read transactions in each node for reading information from the other nodes coupled to a bus. The traffic load applied to each node is distributed to reduce an initial bus stabilization time.

Abstract: A method of determining whether devices support a Multicast Channel Allocation Protocol (MCAP), and a multicast communication method using the same. The method includes an MCAP device broadcasting an MCAP advertise message to a plurality of devices on a network, the MCAP device, which broadcasts the MCAP advertise message, broadcasting an Internet Group Management Protocol (IGMP) query message to the plurality of devices on the network, and the MCAP device, which broadcasts the MCAP advertise message, determining whether each of the plurality of devices on the network supports the MCAP using channel numbers through which a plurality of IGMP report messages was transmitted from the plurality of devices on the network. By doing so, calculation loads caused by unnecessarily using broadcast channels, even when all devices included in a multicast group on the IEEE1394 network support the MCAP, can be prevented.

Abstract: A method for managing the connection of a plurality of devices connected by a digital is provided.

Abstract: An apparatus and method for generating distributed traffic in nodes coupled to a bus, wherein one node reads information on other nodes and generates traffic, includes a bus interface unit and a control unit receiving signals. The signals are transmitted from the nodes via the bus interface unit, to detect a bus reset and determine the number N of nodes coupled to the bus and a node ID number K of a node having the control unit. The information on the nodes is read in a predetermined order, starting from a reference node with node ID number K+M, wherein M is an integer larger than 1−K and smaller than N−K. The apparatus controls the order of generation of read transactions in each node for reading information from the other nodes coupled to a bus. The traffic load applied to each node is distributed to reduce an initial bus stabilization time.

Abstract: An apparatus for transmitting information via a network, and a method therefor. The information transmission apparatus includes a first device having a transport format converter for receiving user interface data in put via a user interface, the user interface for commanding and controlling the first device, and for converting information into a transport format for transmission, a second device having a display unit, the display unit for displaying the user interface or commanding and controlling the first device, and a physical layer for linkig the first and second devices for communications. The IEEE 1394 interface is adopted as the physical layer, so that the second device can control the operation of a digital versatile disc (DVD) player as the first device, and interfacing between devices using the MPEG-2 transport stream becomes easier.

Abstract: A multi-media system for transferring a single program transport stream and a method therefor are provided. A receiver is for receiving a transport stream. For the receiver to control recording and reproduction performed by a recording/reproducing device, the receiver selects one program to constitute a single program transport stream and transfers the single program transport stream to the recording/reproducing device. Here, a program number is transferred, by correcting program association table (PAT) information of the transport stream. Accordingly, the recording/reproducing device can recognize the program number within the single program transport stream to be recorded. Therefore, the receiver can perform remote control of the recording/reproducing device without the extra transfer of the program number. Also, the receiver provides an on-screen graphic (OSG) to the recording/reproducing device, resulting in an OSG of consistent appearance.

Abstract: A multi-media system for transferring a single program transport stream and a method therefor are provided. A receiver is for receiving a transport stream. For the receiver to control recording and reproduction performed by a recording/reproducing device, the receiver selects one program to constitute a single program transport stream and transfers the single program transport stream to the recording/reproducing device. Here, a program number is transferred, by correcting program association table (PAT) information of the transport stream. Accordingly, the recording/reproducing device can recognize the program number within the single program transport stream to be recorded. Therefore, the receiver can perform remote control of the recording/reproducing device without the extra transfer of the program number. Also, the receiver provides an on-screen graphic (OSG) to the recording/reproducing device, resulting in an OSG of consistent appearance.