Abstract: A method for transmitting video data to the users via a network in a transcoder of an image processing system including a storage media having a predetermined amount of storage area is disclosed. The method includes the steps of storing in the storage media, the video data provided based on the corresponding services, monitoring a traffic condition of the network to determine if transcoding is necessary; transmitting the stored video data to the corresponding users, respectively, via the network, when the transcoding is not necessary; and transcoding the stored video data to transmit the video data to the corresponding users, respectively, when the transcoding is necessary. The video data provided is based on the corresponding services includes image information having the highest quality of service from a content provider.

Abstract: A mobile device positioning system and a method of operating the same are provided that can reduce the power consumption of the mobile device. The position-information transmitting apparatus of the mobile device includes a data-receiving module receiving positioning data from a mobile device, a moving-speed calculation module calculating a moving speed of the mobile device according to the received data, and generating transmission time interval information to transmit the data for positioning according to the calculated moving speed, a data-transmitting module transmitting the generated transmission time interval information and the position information of the mobile device to the mobile device, and a load-adjustment module determining a load according to the mobile device having requested the position information, and adjusting the generated transmission time interval information according to the determined load.

Abstract: A method of displaying an image for a self-luminescence display includes determining loads by channels of an input image frame, estimating a display brightness of the input image frame using a relationship between the loads predetermined by channels and a change of the display brightness, correcting a luminance value of the image frame to correspond to the estimated brightness, and displaying the luminance-corrected image frame.

Abstract: A method and apparatus for displaying a battery residual quantity of a portable terminal having a self-luminescence display are provided. The brightness of an image frame is determined by analyzing a histogram of the image frame output through the self-luminescence display. A power consumption of the self-luminescence display is determined based on the brightness of the image frame output through the self-luminescence display. A battery voltage and a battery voltage variance value are determined. The battery residual quantity is displayed in accordance with the power consumption of the self-luminescence display and the battery voltage variance value.

Abstract: A method of providing initial pictures to a digital TV is provided. The method includes recognizing a set-top box, which is connected to the network and is activated, when a digital TV is turned on, issuing a request for transmitting broadcast signals for displaying initial pictures on the screen of the digital TV to the set-top box, and decoding the broadcast signals received from the set-top box and displaying the decoded broadcast signals.

Abstract: A retransmission apparatus using an IP multicasting method for a DMB service including a plurality (n) of radio frequency (RF) receivers, each for receiving a DMB RF signal of a corresponding channel, a plurality (n) of DMB decoders, each for outputting a transport stream (TS) by decoding the DMB RF signal received from a corresponding RF receiver, a plurality (n) of slicers, each for processing the TS input from a corresponding DMB decoder; a plurality (n) of network interfacers, each for IP packetizing the TS sliced by a corresponding slicer; a network switch for receiving the IP packets from the plurality (n) of network interfacers, transferring the received IP packets to a multicasting processing unit, and receiving multicasting data from the multicasting processing unit, and the multicasting processing unit for receiving the IP packets from the network switch, creating a single piece of multicasting data by assigning multicasting addresses to the received IP packets, and outputting the created multicasti

Abstract: A method for providing a graphical user interface (GUI) in which a pointer is controlled to move to a specific location if the pointer approaches an area at which a GUI element, capable of being selected by the pointer, is displayed on the GUI.

Abstract: A display apparatus and a driving method thereof, which are able to conveniently and efficiently provide a social networking service and a broadcasting service between users. The display apparatus may display a web page, receive a broadcasting signal, and display an image of the broadcasting signal. By transmitting at least one of the web page and the image to another user, the display apparatus conveniently provides the social networking service and the broadcasting service to the users.

Abstract: A widget providing method and an apparatus for displaying the widget are provided. According to the present method of generating a hyperlink widget, a widget is generated upon selection of links included in a web page. The generated widget is displayed on the specific portion of a screen. Through the generated widget, a user may check brief information regarding the hyperlinked web page, select widgets including contents that the user wants, and load and display the hyperlinked web pages corresponding to the selected widgets, without the user having to return to the apparatus page and select another hyperlink.

Abstract: Disclosed are a system and method for providing digital multimedia broadcasting confinement service. The system includes: a relay center side system, which is adopted to the relay center, according to the relay center side packet identification description (PID) key, for modifying the PID of transport stream and generating the distorted program specific information (PSI); and a terminal side system, which is adopted to the DMB terminal, according to the terminal side PID key, for recovering the distorted PSI of the transport stream received from the relay center and decoding it. The method includes the steps of: identifying whether the actual PID of the TS is consistent when the TS is demultiplexed by audio/video PID acquired through the program map table (PMT) analysis of the TS; generating a preset alarm signal; modifying the PID of the audio/video data in the PMT according to the terminal side PID; and demultiplexing the TS according to the modified PID value.

Abstract: A method of displaying a portrait on a display is provided. The method includes determining whether a photographed image is a character-photographed image according to photographing information of the photographed image; executing face detection from the photographed image if it is determined that the photographed image is a character-photographed image; setting a character area in the photographed image according to a result of the face detection; and magnifying and displaying the character area on the display.

Abstract: Disclosed is a method for extracting a region-of-interest of a user in a multimedia mobile terminal. The method includes: setting a search region in an input picture input to the multimedia mobile terminal on a screen picture-to-screen picture basis, and extracting a group of boundary of a region-of-interest based on a brightness difference between the set search region and an environment around the set search region; determining boundary coordinates of the region-of-interest through learning during a predetermined frame among the extracted group of boundary coordinate candidates; and enlarging the region-of-interest having the determined boundary coordinates, and displaying the enlarged region-of-interest. As a result, a region the user is most interested in or pays more attention to than other regions on a screen is automatically extracted.

Abstract: An apparatus for adjusting an output bit rate of a TS packet includes: a TS processing unit for processing the TS packet; an output buffer for buffering and outputting TS packets processed by the TS processing unit; and a bit rate adjustment unit for separating a counting value of packet output time into an integral part and a decimal part by a preset reference cipher according to ticks, generating TS packet output signals for outputting one TS packet stored in the output buffer if a value obtained by performing first counting according to the ticks reaches a value of the integral part, resetting a first count value, and decreasing the first count value by one if a carry occurs in a value obtained by performing second counting for achieving an increment by the value of the stored decimal part whenever the TS packet output signals are generated.

Abstract: Disclosed is a selective frame error concealment method for a moving picture frame, the method including the steps of determining if an erroneous frame corresponds to one among a predetermined number of frames received after an I frame when the erroneous frame is received during reception of moving picture frames, determining if the number of consecutive erroneous frames is greater than a threshold value when the erroneous frame does not correspond to one among the predetermined number of frames received after the I frame, using an error concealment technique when the number of consecutive erroneous frames is equal to or less than the threshold value; and displaying a frame, which has been received without error before the erroneous frame, until receiving a new I frame, either when the erroneous frame corresponds to one among the predetermined number of frames received after the I frame, or when the number of consecutive erroneous frames is greater than the threshold value.

Abstract: Disclosed is a device for filtering out a null packet in a data stream for example an MPEG-2 TS (Transport Stream) to avoid bandwidth waste when it is transmitted to a backbone network. The device includes a plurality of receiving interfaces, a filter unit, and a controller. The receiving interfaces receive parallel data, such as DVB-ASI (Digital Video Broadcasting-Asynchronous Serial Interface) inputs as channel-by-channel MPEG-2 data. The filter unit counts the respective numbers of data packets and non-data packets of the data input from the receiving interfaces and filters a null packet in the data. A network transmission unit transmits the filtered data to a backbone network. The controller calculates a bit rate based on both of the count numbers received from the filter unit.

Abstract: An asynchronous transport stream receiver of a digital broadcasting receiving system connected to MPEG-2 (Moving Picture Experts Group-2) equipment, such as a VOD (Video On Demand) server is disclosed. The inventive receiver includes an FIFO section for storing MPEG-2 data generated from DVB-ASI (Digital Video Broadcasting Asynchronous Serial Interface) signals, an oscillator for generating clock signals for producing the MPEG-2 data from the DVB-ASI signals, and a read controller for reading and outputting the MPEG-2 data stored at the FIFO section in synchronization with clock signals of the oscillator. Accordingly, the MPEG-2 data can be processed and outputted regardless of the SD or HD leveled compression condition (bit rate) of the MPEG-2 data transmitted according to the DVB-ASI standard.

Abstract: An optical transmission network is disclosed that classifies digital broadcast channel data according to virtual channel connection (VCC) before transmission. In the optical transmission network, an optical signal receiver converts an optical signal from an optical line terminal (OLT) into an ATM cell that is classified according to the VCC. A VCC-based ATM cell classifier detects header information and a payload part from the classified ATM cell of each VCC. PID analyzers receive a payload part of an ATM cell corresponding to one VCC from the VCC-based ATM cell classifier, extract PID of each broadcast channel from digital broadcast channel data included in the payload part, and output specific broadcast channel data in the broadcast channel data included in the payload part. A switch receives broadcast channel data output from the PID analyzers and switches the received broadcast channel data to a broadcast channel desired by each subscriber.

Abstract: Disclosed is a method for interpolating chroma signals while minimizing the calculation overhead. To this end, multiplication requiring a large operation is removed when obtaining a fractional-pel value through chroma interpolation, and a simple linear interpolation method is used in order to reduce the number of operations including addition, subtraction, etc. In this way, it is possible to considerably reduce the operation amount for an ME and an MC which normally consume more than about 30% of H.264 system processing power.

Abstract: A method and apparatus for error concealment in decoding of a moving picture. The method includes the steps of determining an erroneous macro block in a present frame when the moving picture is decoded, finding a first macro block having a highest similarity to the erroneous macro block and a second macro block having a next highest similarity to the erroneous block in a previous frame by comparing adjacent pixels of respective blocks in the previous frame with adjacent pixels of the erroneous block in the present frame; and replacing the erroneous block by using an average between the found macro blocks having the highest similarity and the second highest similarity to thereby conceal the erroneous macro block. The apparatus includes a parser, an entropy decoder, an inverse quantizer, an inverse converter, and a concealment unit that uses motion compensation from a previous frame to correct a macro block in a current frame.

Abstract: An apparatus for reception of a mobile broadcast is disclosed. The apparatus includes a mobile broadcast reception unit for receiving a broadcast signal transmitted through a mobile broadcasting network, demodulating the broadcast signal into a baseband signal, and outputting the baseband signal; and a wireless Internet broadcast reception unit for receiving a broadcast signal transmitted through a wireless Internet network, demodulating the broadcast signal into a baseband signal, and outputting the baseband signal, and the apparatus also includes a post-processing unit for checking reception sensibilities of the mobile broadcast reception unit and the wireless Internet broadcast reception unit, selecting and decoding one signal of output signals of the mobile broadcast reception unit and the wireless Internet broadcast reception unit according to a result of the checking, and outputting the selected and decoded signal.