Abstract: Apparatuses and methods are provided which suppress a surge component occurring at an optical amplifier on an optical path through which an optical burst signal is transmitted. An optical amplifier may experience a surge due to the power variation of the optical burst signal that is fed to the optical amplifier. To suppress such a surge component, a power corresponding to a number of wavelengths of an optical burst signal to be input is calculated. The optical amplifier is instructed to generate an optical signal with a power corresponding to a difference between a set value and the calculated power. The generated optical signal and the optical burst signal to be input are coupled and output according to the instruction. Thus, the optical amplifier can receive the optical signal with the constant power and the surge component at the optical amplifier can be suppressed.

Abstract: An apparatus and method for effectively transmitting a packet data and a control data of path information about the packet data in an optical packet data switching network. The method includes grouping a plurality of wavelengths into at least two wavelength bandwidths, each wavelength bandwidth being composed of neighboring wavelengths, and transmitting the optical packet data and the control data with wavelengths of different wavelength bandwidths respectively. Since the wavelength to transmit the optical packet data and the wavelength to transmit the control data has a difference from each other, a node receiving optical data easily divides the packet data and the control data.

Abstract: A terminal, a display apparatus, and a method of transceiving data are provided. The terminal transmits or receives data corresponding to a specific point to which light is emitted through a communication unit if a data transmission command or a data receiving command is input. Accordingly, the display apparatus and the terminal transceive data by directly communicating with each other.

Abstract: A display apparatus, a scanner, a display system, and a display method using the same are provided. The display apparatus includes a first display, a second display, a hinge unit, and a control unit which displays a scanned image on at least one of the first display and the second display. Therefore, a user can view images scanned by the scanner with greater ease and greater convenience. In addition, the scanner can be mounted in the display apparatus with maximized efficiency of space.

Abstract: An object information providing apparatus and an object awareness apparatus are provided. The object information providing apparatus includes at least one light emitting element and controls a light emitting state of the at least one light emitting element so as to provide information of an object to the object awareness apparatus in the form of light. Accordingly, the object information providing apparatus provides information of a diverse number of different objects and the object awareness apparatus recognizes the information of the different objects such that the object awareness apparatus becomes aware of the identity and the location of the different objects.

Abstract: A 3D interface apparatus which is operated based on motion and an interfacing method using the same are provided. The interface apparatus includes a motion sensor, a controller which determines a wind property, and a wind generation module which generates a wind. Accordingly, a user is allowed to manipulate a GUI more easily, conveniently, and intuitively.

Abstract: An interface apparatus for generating a control command by touch and motion, interface system, and interface method using the same is provided. The interface apparatus includes a touch screen, motion sensor, and control unit for generating a control command. Accordingly, a user can manipulate a GUI more easily and conveniently.

Abstract: A method for providing a user interface, and a Digital Light Processing (DLP) display apparatus using the method. In the DLP display apparatus, a Digital Micro-mirror Device (DMD) reflects light projected on a screen by a light source, and an image sensor detects the light reflected from the DMD, so as to easily provide a user interface for the DLP display apparatus.

Abstract: Disclosed is an optical packet communication system using a wavelength-offset polarization-division multiplexing labeling. An optical signal transmitter which is provided at an ingress node positioned at a sending end in an optical packet switching network, generates and combines packet data and a label, and transmits the combined packet data and label to a core node, wherein the packet data and label have polarization directions perpendicular to each other and maintain a predetermined wavelength interval. A label swapping device detects the label from the combined packet data and label received from the optical signal transmitter, detects next moving position information of the packet data, for generating a new label, substitutes the detected label by the new label, combines the new label with the packet data, and transmits the combined packet data and new label to a next moving position.

Abstract: A network bridge device for controlling IEEE 1394 bus reset includes an interface for receiving information relating to devices belonging to a foreign cluster, from the foreign cluster; and a controller for determining whether to reset a bus of a local cluster by comparing the received information with pre-stored information. Accordingly, the bus reset storming between the clusters can be prevented by selectively executing the bus reset of the cluster.

Abstract: A network bridge apparatus and a communication method using the network bridge apparatus are provided. In the network bridge apparatus, a storage stores first attribute information which is provided by a first device of a first cluster for communication, an external communicator transmits the stored first attribute information to a second cluster and receives second attribute information which is provided by a second device of the second cluster for communication, from the second cluster, and a controller recognizes a service provided by the second device from the received second attribute information, creates a virtual device corresponding to the second device by changing the received second attribute information, and maps the changed second attribute information to the received second attribute information.

Abstract: A communication system for home networking, the home networking communication system including: a plurality of repeaters that are respectively provided in some zones from among a plurality of zones, a splitter that is connected to the plurality of repeaters through a coaxial cable, and a hub that is provided in one zone from among the plurality of zones, is connected to the splitter through the coaxial cable, and relays data communication between the plurality of repeaters. Accordingly, a cost for installation is reproduced and an installation of the communication system is more convenient.

Abstract: A demodulation method using phase detection and an apparatus thereof are provided. The demodulation method includes detecting phase information by sampling a received signal, synchronizing at least one clock signal by using the detected phase information, oversampling the received signal by the synchronized clock signal, and demodulating the received signal by using the oversampled result. With this, the demodulating apparatus can demodulate the modulated signal by using the phase detection, and use a digital filter as a filter for removing a jitter from the demodulated signal, thereby allowing a size thereof to be minimized.

Abstract: A wireless bridging method for a wireless IEEE 1394 network environment includes receiving information about IEEE 1394 devices contained in an external cluster from the external cluster, and if the information on the IEEE 1394 devices contained in the external cluster is received from the external cluster, resetting a bus of a cluster. According to the method, an effective wireless 1394 bridge supporting a conventional 1394 devices having no bridge awareness function can be implemented.

Abstract: Disclosed is a method of establishing a network topology capable of carrying out a relay transmission among sub-networks in a backbone network having the plural sub-networks composed of at least one device. The method includes each of sub-master devices controlling communications in the respective sub-networks transmitting an ID request message to other sub-master devices; transmitting a response message from the other sub-master devices to the sub-master device having transmitted the ID request message; each of the sub-master devices assigning an ID to the sub-master device having no ID among the sub-master devices having transmitted the response message; and forming a network topology in accordance with whether or not the response message has been transmitted, and in accordance with the order of ID assignments, after the ID is assigned to all the sub-master devices in the backbone network. The network topology enables reliable communications among the respective sub-networks.

Abstract: A digital broadcast receiver and broadcast data display method enabling simultaneous display of multi-channel visual images are disclosed. The broadcast data display method includes receiving digital broadcast data on a plurality of channels; simultaneously outputting on a single screen real-time broadcast data of a selected channel and still images of the remaining channels; and periodically updating the still images of the remaining channels. Thereby, up-to-date multi-channel visual images are simultaneously output. Hence, the user can easily perform channel selection and channel switching.

Abstract: An apparatus for downloading a multimedia file including a file converter configured to convert a larger multimedia file into a smaller multimedia file by deleting prescribed medial information based on a media format contained in the larger file. Further, the file converter converts the larger file into the smaller file by deleting multi bit-rate media not corresponding to a selected bit rate or by deleting enhancement layer video.

Abstract: A wireline ultra wideband (UWB) signal transmission device, and a wireline ultra wideband signal transmission method of transmitting an ultra wideband signal over a pipeline carrying a cable television (CATV) broadcasting signal. The pipeline includes a plurality of coaxial cables operatively connected through a plurality of splitters that divide the CATV broadcasting signal at a predetermined rate. A plurality of wireline UWB signal transmission devices respectively connected to the pipeline transmit a wireline single band orthogonal frequency division multiplexing (SB-OFDM) based UWB signal through the pipeline and recover a multimedia signal from the SB-OFDM based signal.

Abstract: A time and wavelength division multiplexed passive optical network where a central office has a downstream transmitter and an upstream receiver. The downstream transmitter multiplexes and transmits downstream optical signals in a time region. The upstream receiver de-multiplexes, in a wavelength region, an upstream optical signal. An optical network unit has a downstream receiver and an upstream transmitter, where the downstream receiver de-multiplexes, in the time region, the downstream optical signals from the central office. The upstream transmitter multiplexes the upstream optical signal in the wavelength region and transmits the signal to the central office. A remote node, having an optical distributor and a wavelength division multiplexer, is connected between the central office and the optical network unit. The optical distributor distributes the downstream optical signals from the central office.

Abstract: Disclosed is a wavelength-division-multiplexed (WDM) passive optical network which comprises an optical network unit (ONU) for receiving and transmitting an optical communication service; a remote node having an amplifier for amplifying wavelength of light as being transmitted from the optical network unit; and a central office for receiving the amplified light. In accordance with the WDM passive optical network described herein, it is possible to enhance the quality of the optical communication service provided by the optical network.