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: 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: A digital broadcasting receiver having a location registration and notification function is disclosed. The receiver includes a receiving unit for receiving data including identification information of a gap filler; an input unit for inputting a location registration request signal; a sub-controller for detecting gap filler identification information (GFID) from the digital broadcasting data; a main controller for creating location identification information corresponding to the GFID in response to the location registration request signal; and a location information storage unit for storing the GFID and the location identification information.

Abstract: Disclosed is a device for managing electronic program guide (EPG) data in a digital broadcasting reception terminal, which includes an EPG parsing unit for separating EPG data from a received digital broadcast signal; an EPG user interface unit for composing a broadcast guide picture for offering digital broadcast program information using specific one of the EPG data; an EPG management unit for extracting predetermined data from the EPG data to generate a database, for reading specific data from the generated database when receiving a request for the data to compose the broadcast guide picture, and for transferring the read data to the EPG user interface unit; and a memory for storing the EPG data and the generated database under the control of the EPG management unit. The device generates a separate database for storing and managing the data necessary to compose a broadcast guide picture among the received EPG data, which enables rapid and effective access to the data.

Abstract: Disclosed is a mobile communication terminal and a method for reproducing digital broadcasting by a mobile communication terminal equipped with a moving picture player, the method including receiving digital broadcasting data, detecting CODEC information necessary for reproduction of the digital broadcasting, while parsing the received digital broadcasting data into video and audio data, setting the detected CODEC information in the moving picture player, and reproducing the video and audio data by the moving picture player in which the CODEC information has been set. The mobile communication terminal can reproduce digital broadcasting without a separate multimedia chip, thereby reducing the power consumption of the terminal.

Abstract: An apparatus and method for composing a data input key array with a plurality of keys are provided.

Abstract: A digital broadcasting reception terminal and a digital broadcasting data processing method using the same can reduce the overhead increase of the operation system as well as the use of resources. The digital broadcasting reception terminal includes a digital broadcasting receiver for receiving digital broadcasting data; a demodulator for demodulating the received digital broadcasting data and outputting a reporting signal when the digital broadcasting data have been demodulated up to a preset capacity, wherein the reporting signal reports demodulation of the digital broadcasting data up to the preset capacity; and a control unit for reading and outputting the demodulated digital broadcasting data when the reporting signal has been output from the demodulator.

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 method and apparatus for searching for a digital broadcasting program. A user inputs search information to search for a predetermined digital broadcasting program. When the search information is input, at least one digital broadcasting program corresponding to the search information and broadcasting program information thereof are detected from a guide data for digital broadcasting programs. A list of the at least one detected digital broadcasting program and the detected broadcasting program information are stored in a memory. When the search is completed, the stored list of the at least one detected digital broadcasting program and the stored detected broadcasting program information are displayed.

Abstract: A method and apparatus for storing digital broadcasting data. Predetermined search information input from a user is received. At least one broadcasting program including the search information is detected from guide data for digital broadcasting programs, and the at least one detected broadcasting program is displayed. Information of at least one broadcasting program selected from among the at least one displayed broadcasting program according to selection information of the user is stored. When a broadcasting start time of the corresponding broadcasting program is reached according to the stored information of the at least one selected broadcasting program, digital broadcasting data of a corresponding broadcasting program is stored. Therefore, the user can easily identify broadcasting programs including the search term among programs to be broadcast for the search period when inputting the search term and the search period, without a need to check a list of broadcasting programs of each channel.

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: 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: 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: A method is provided for interpolating a color image component. A Bayer pattern is extracted from an optical signal obtained by capturing an image of an object. An arithmetic average of values of red (R) or blue (B) components vertically or horizontally neighboring at least one green (G) position of the extracted Bayer pattern is computed, and an R or B component is interpolated into the at least one G position. A horizontal difference value and a vertical difference value are computed between G, B, or R component values of G positions neighboring at least one R or B position after interpolating the R or B component into the at least one G position. A preset threshold value is compared with an absolute value of a resulting value obtained by subtracting the vertical difference value from the horizontal difference value.

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 device and method for compressing image data is disclosed. The device and method comprises a block dividing section for dividing each frame of the image data into a plurality of blocks; a block determining section for determining the types of divided blocks; and a compressing section for performing compression according to the types of divided blocks. The block types include motion blocks, static blocks and refresh blocks that avoid the accumulation of errors between frames.