Abstract: A method and system for displaying digital broadcast signals are disclosed. The method displays a broadcast signal, transmitted from a portable terminal having a digital broadcast receiver, on an external device having a decoding unit. When the external device transmits a digital broadcast playback request and selected channel information, the portable terminal controls the digital broadcast receiver to select a broadcast channel according to the selected channel information, demultiplexes a broadcast signal of the selected broadcast channel, and transmits the demodulated broadcast signal. The external device classifies the demodulated broadcast signal as audio, video, and broadcast information, decodes the classified signals and plays them back.

Abstract: An apparatus and method are provided for composing a data input key array with a plurality of keys wherein multiple character groups are assigned to respective ones of the plurality of keys, each of the multiple character groups comprising multiple characters. The multiple characters of each character group are arranged on the corresponding key in the same pattern as the multiple character groups on the data input key array. The data input key array may operate by selecting a particular key assigned with a desired character, and selecting a key disposed to correspond with the position of the desired character on the particular key, thereby displaying the desired character. The data input key array may also be operated by selecting a particular key assigned to a desired character by inputting one of the directional keys, the directional key being disposed to correspond with the position of the particular key.

Abstract: A 3 Dimensional (3D) image processing method and apparatus for a mobile terminal are provided. The method enables the mobile terminal to reconstruct side-by-side 3D images. The method includes, receiving a side-by-side 3D image including vertical lines of pixels, generating a left frame to form a left image and a right frame to form a right image by copying lines of the left half of the side-by-side 3D image to even-numbered lines of the left frame and copying lines of the right half of the side-by-side 3D image to odd-numbered lines of the right frame, completing the left image and the right image by interpolating existing lines of the left frame and the right frame, and generating a 3D image frame by combining the left image and the right image, and displaying the 3D image frame. Hence, the mobile terminal may provide higher quality 3D images to the user.

Abstract: An apparatus and a method for 3-Dimensional (3D) image processing in a communication device are provided. The method includes obtaining an original image for providing a 3D image digital multimedia broadcasting service, setting the original image provided from the controller into a right-side image and generating a left-side image which differs from the right-side image, converting the left-side image and the right-side image into a side-by-side format image by combining the left-side image and the right-side image, dividing each of the combined two images into a plurality of blocks, determining a search region for each of the divided blocks within an image, and estimating a motion vector of each block based on the search region.

Abstract: A digital broadcasting receiver includes a gap filler information storage unit for storing information of locations of gap fillers and information of corresponding gap filler identifiers matched to the locations. The gap fillers are arranged at regular intervals in order to relay digital broadcasting data transmitted from a satellite. A reception unit receives the digital broadcasting data including the information of gap filler identifiers. A sub-controller detects identification information of a current gap filler from the digital broadcasting data. An input unit receives an input of destination information. A main controller detects identification information of a destination gap filler corresponding to the input destination information from the gap filler information storage unit, counts the number of gap fillers located between the destination gap filler and the current gap filler, and generates destination arrival information based on the counted number of gap fillers.

Abstract: A method and apparatus for transceiving additional data using unallocated slots of a header of a frame used in a broadcast system are provided. A data transceiving apparatus includes a data transmitter for encoding, modulating, and transmitting a broadcast frame including a first region containing broadcast data and a second region containing additional data and a data receiver for receiving the broadcast frame, extracting at least any of the broadcast data and the additional data from the broadcast frame, and processing the broadcast data and the additional data independently.

Abstract: A disaster information handling method based on a broadcasting system and a mobile terminal supporting the same is provided. The method includes receiving a broadcast signal, determining whether disaster information is present in the received broadcast signal, when disaster information is determined to be present in the received broadcast signal, extracting geographic data of a disaster area from the disaster information and extracting location data of a transmitting base station from the received broadcast signal, and performing an alert output operation according to the distance between a site indicated by the geographic data and a site indicated by the location data.

Abstract: A digital multimedia broadcasting (DMB) receiver and a method for notifying location information of the receiver is provided. The DMB receiver stores location information of each gap filler matched to a gap filter identification (GFID), and the gap filler relays digital multimedia broadcasting data transmitted from a satellite. The receiver performs receiving digital multimedia broadcasting data from the gap filler, detects the GFID of the gap filler from the received digital multimedia broadcasting data, detects location information of the gap filler by using the GFID and outputs the location information. Therefore, a user in motion may watch DMB without any risk of missing a destination.

Abstract: A method is provided for registering and displaying digital multimedia broadcasting (DMB) channels in a mobile terminal capable of receiving DMB. A selection of DMB mode is detected and electronic program guide (EPG) information is received. The received EPG information is analyzed and the analyzed received EPG information is divided into fixed program channel information and dynamic program channel information. The fixed program channel information is matched with a genre in which a fixed program channel has been registered, and a result of the matching is displayed. The dynamic program channel information is matched with a genre in which a dynamic program channel has been registered and a genre of a program currently being broadcast on the dynamic program channel, and a result of the matching is displayed.

Abstract: A mobile terminal and auto-focusing method for the same are disclosed. The auto-focusing method uses a lens position error compensation and includes: detecting a target object during a photograph mode; determining a lens position at which a focus value gradient related to the detected target object changes sign while moving a lens of the camera module in units of one step size; and performing lens position compensation by moving the lens to the found lens position. As a result, the lens position errors caused by a conventional a voice coil motor are compensated, thereby providing rapid and fine auto-focusing.

Abstract: Disclosed is an apparatus for processing image data in a portable terminal equipped with a camera. In the apparatus the image data photographed by the camera are coded by a predetermined coding scheme in a photographing mode of the camera, header information of a stream of the coded image data is generated and inserted into the stream, identifying information is generated as a watermark and the watermark is inserted into the stream, and the stream comprising the watermark is stored.

Abstract: Apparatus and a method for improving image quality in an image sensor, where a black level of a photographed image is calibrated and luminance of an image signal is expanded within the allowable range of luminance through knee correction for the image signal in which the black level is calibrated. Interpolation for restoring a dead pixel may be achieved before gamma correction for image signal.

Abstract: An optical device for a camera including a lens array for focusing incident optical signals, a window glass positioned in front of the lens array to prevent alien substances from contacting the lens array, and a barrel for retaining the lenses of the lens array, wherein each lens of the lens array is coated with multi-layered thin films to suppress respective reflection waves of incident optical signals having different wavelengths, and of such a thickness that causes the phase of reflection waves reflected through the thin films to be the inverse of the phase of reflection waves reflected at the surface of the lens.

Abstract: A digital broadcast receiver and channel switching method are provided for minimizing channel switching latency by skipping an unnecessary PMT update and PIDs reset processes. A channel switching method for a digital broadcast receiver detects a channel-switching command for switching to a service channel, checks a first version of information of a currently received program mapping table received on the service channel upon detecting the channel-switching command, compares the first version of information with a second version of information of an previously received and stored program mapping table, configures the digital broadcast receiver with a set of packet identifiers (PIDs) associated with the service channel according to a version information comparison result, and performs channel switching to the service channel using the set of PIDs.

Abstract: An apparatus and method for auto-focusing in a mobile terminal having a camera module which can automatically photograph an image in optimum focus when the camera function is used are provided. The apparatus and method comprise detecting the subject by performing a preview mode in a camera mode; detecting and storing a focus value while moving the lens by increasing/decreasing electrical current in stages based on a focus characteristic of the detected subject, determining based on a presently-detected focus value and a previously-stored focus value if a slope has changed, and detecting an optimum focus value from a focus value at which the slope has changed; and performing a tracking mode to track a focus in a predetermined zone which includes the detected focus value at a center of the zone.

Abstract: An advertisement-free program recording method and system is provided for recording a broadcast program excluding advertisement breaks. A program recording method of the present invention includes reserving a duration of time or program to be recorded; receiving broadcast data in the duration; recording the received broadcast data; determining whether advertisement data is detected in the received broadcast data; stopping recording the broadcast data when advertisement data is detected; and restarting recording the broadcast data when no advertisement data is detected.

Abstract: A method and apparatus for transceiving additional data using unallocated slots of a header of a frame used in a broadcast system are provided. A data transceiving apparatus includes a data transmitter for encoding, modulating, and transmitting a broadcast frame including a first region containing broadcast data and a second region containing additional data and a data receiver for receiving the broadcast frame, extracting at least any of the broadcast data and the additional data from the broadcast frame, and processing the broadcast data and the additional data independently.

Abstract: A method for accurately estimating the received signal strength of a broadcast system and a portable device that may receive broadcast signals using the received signal strength estimation method are provided. An electric field state determination method for digital multimedia broadcast includes determining a current electric field on the digital broadcast channel based on at least one of whether generation of a transport stream is detected, a result of a comparison between a current buffering rate of a buffer and a threshold buffering rate, and a variation of a number of RGB frames accumulated in a buffer.

Abstract: The present invention relates to a caption data transmission and reception method in digital broadcasting and to a mobile terminal performing the caption data transmission and reception method. The mobile terminal capable of digital broadcast reception can provide a caption service using Binary Format for Scenes (BIFS) data contained in broadcast data.

Abstract: A mobile terminal and auto-focusing method for the same are disclosed. The auto-focusing method uses a lens position error compensation and includes: detecting a target object during a photograph mode; determining a lens position at which a focus value gradient related to the detected target object changes sign while moving a lens of the camera module in units of one step size; and performing lens position compensation by moving the lens to the found lens position. As a result, the lens position errors caused by a conventional a voice coil motor are compensated, thereby providing rapid and fine auto-focusing.