Abstract: A method and system for configuring a media access control header to reduce a header overhead is provided. The method includes establishing a connection between a transmitter and a receiver. The method also includes determining a size of a length field in the MAC header of a MAC protocol data unit (PDU) of the connection based on one or more parameters. The method further includes transmitting the MAC PDU to the receiver. The system includes a transmitter to determine a size of a length field of the media access control (MAC) header based on one or more parameters and to transmit a MAC protocol data unit (PDU) having the MAC header to a receiver. The system also includes the receiver to receive the MAC PDU and to determine the size of the length field in the MAC header based on a connection identifier in the MAC header.

Abstract: Disclosed is an apparatus for photographing an image using a digital camera capable of providing a preview image, including: an image sensor for capturing an image of a subject; a first image signal processor for processing at least one captured image as a sequent image in order to display the captured image as a preview image on a display window and detecting a face area from the captured image; a buffer for storing the image including at least one detected face area; a capture button for capturing a still image during outputting the sequent image as the preview image on the display window; a second image signal processor for processing the captured still image using the capture button; a controller for controlling to store the captured still image and information related on the face area detected from the first image signal processor prior to the input of the capture button; and a memory for storing the processed still image together with the information related on the detected face area.

Abstract: A method and apparatus for quickly and easily requesting content over a mobile device via a telephone network without requiring user entry of a number of pieces of information or having to forward through to certain request screens and/or browse for content. The method includes verifying a mobile device based on an incoming telephone call to a particular destination telephone number; retrieving by a content server the specific content associated with the particular destination telephone number in which contact has been initiated by the mobile device; and providing the specific content to the mobile device requesting the content. Specific content includes but is not limited to broadcast data, satellite transmitted data, and cable network data provided during a telephone call, so that a mobile device can receive everything from television shows to news broadcasts and educational shows, etc. so long it is within range of a telephone network.

Abstract: Disclosed is a method for photographing a panoramic image. The method includes comparing an current image input with a previous image to obtain a motion information of a corresponding photographing apparatus, when photographing respective images forming the panoramic image, recognizing a degree of movement of the corresponding photographing apparatus at least based on the obtained motion information, and photographing corresponding image by a manual input or automatically when the recognized degree of movement is satisfied with a pre-set movement distance reference.

Abstract: An apparatus and method for decreasing the number of bearer connections by transmitting a data packet in order to determine a network connection status at a time of bearer connection necessarily performed by a portable terminal together with a location registration message. Reduced battery consumption in the portable terminal is achieved because of the reduced number of bearer connections. The apparatus includes a transmission time determination unit for reconfiguring a data packet transmission time to a time of bearer connection necessarily performed by the portable terminal when a data packet is transmitted to determine the network connection status, and a controller for providing control to transmit the data packet is transmitted while connecting the bearer at the reconfigured data packet transmission time, wherein the reconfigured data packet transmission time may be advanced or delayed of the initial transmission time.

Abstract: A method and apparatus for estimating the contour of a user object in a moving picture during video communications so that a personal background image is not provided during video communications. Information about center coordinates as well as a size of a face of the user object is extracted from a moving picture frame. Edges are extracted from the moving picture frame, and a boundary of a head of the user object is estimated using a semicircle. The boundaries of left and right shoulders and left and right arms of the user object are estimated using second-order function graphs that overlap a largest portion of the edges. An entire contour of the user object is estimated according to the boundaries of the head, the left and right shoulders, and the left and right arms of the user object.

Abstract: An apparatus and method for determining a maximum segment size (MSS) in a mobile communication system. When the portable terminal accesses a multimedia service server through a data call, the method includes confirming whether or not a maximum segment size (MSS) of the server is stored; if the MSS is stored, the server is accessed using the MSS; and if the MSS is not stored, determining the MSS of the server through a ping procedure.

Abstract: A method for transmitting/receiving data in an orthogonal frequency division multiple access-time division duplex (OFDMA-TDD) scheme. A first uplink signal and a first downlink signal of a specific band are periodically transmitted/received within a time-divided section. A second uplink signal and a second downlink signal are periodically transmitted/received, and the second signal is of a band other than the specific band, within the time-divided section, wherein, during a time section in which the first downlink signal is transmitted, the second uplink signal is received.

Abstract: An optical module having a second connector unit mounted on the bottom of a first connector unit to reduce the size of the radiation member and the optical module. The optical module includes a first connector unit, a radiation member provided on a first side of the first connector unit to support the first connector unit and radiate heat, a second connector provided on the first connector unit to electrically connect the first connector unit to a PCB, and a fastening member provided on surfaces of the first and second connector units, which face each other, to fasten the first and second connectors to each other. The optical module is advantageous reduces the size of the radiation member and renders a more compact optical module.

Abstract: A method and apparatus are provided for allocating code resources to ACK/NACK channel indexes, when UEs need ACK/NACK transmission in a wireless communication system in which a predetermined number of orthogonal cover Walsh codes is selected from among available orthogonal cover Walsh codes, at least one subset is formed, having the selected orthogonal cover Walsh codes arranged in an ascending order of cross interference, subsets are selected for use in first and second slots of a subframe, and the orthogonal cover Walsh codes of the subset selected for each slot and ZC sequence cyclic shift values are allocated to the ACK/NACK channel indexes.

Abstract: Disclosed is a method for controlling bit rates in consideration of wireless channel environment by an apparatus that transmits and receives moving picture encoding data via a wireless network. The apparatus for transmitting/receiving data through a wireless communication network connected to the apparatus including a channel state analyzing unit for analyzing a wireless channel environment, an encoding controller for generating control information containing information about a quantization parameter, skip or non-skip of frames indication, frame type indication, and use or non-use of an Error Resilient Tool (ERT) indication, in consideration of an analyzation result received from the channel state analyzing unit, a moving picture encoding unit for encoding incoming moving picture data, based on the control information received from the encoding controller; and a data transmitting/receiving unit for transferring the encoded moving picture data through the wireless channel to an exterior.

Abstract: Disclosed is a contact terminal closing device for a portable storage device. The disclosed contact terminal closing device includes: a contact terminal received in a housing; a guide frame; a push sliding knob coupled to the guide frame in such a manner that depending on whether the push sliding knob is manually pushed or not, the push sliding knob locks the contact terminal or releases the contact terminal from the locked state, the push sliding knob being moved in the longitudinal direction of the guide frame to manually retract the contact terminal into the housing or to manually extract the contact terminal from the housing; and one or more shielding members provided on the guide frame to be cooperatively moved depending on the movement of the push sliding knob, the shielding members being adapted to completely shield the contact terminal from the outside.

Abstract: A method for managing data between a plurality of electronic devices in a Near Field Communication (NFC) network in which a first electronic device initially establishes a communication link with at least one of the plurality of electronic devices. The desktop configuration information is then exchanged with at least another electronic device. Thereafter, desktop data of the first electronic device can be shared with the at least one of the plurality of electronic devices.

Abstract: A transmitting apparatus and a transmitting method for improving a channel deviation in a mobile communication terminal are provided. The transmitting apparatus includes a power amplifier for amplifying a transmitting signal by a predetermined level and outputting an amplified transmitting signal, a controller for outputting a signal to control a variable capacitor according to a channel of the transmitting signal and a phase transition unit for varying each capacitance value according to a control of the controller and transiting a phase of a signal outputted from the power amplifier.

Abstract: An S.O.S. cover opening and shutting apparatus for a portable terminal allows a user to activate an S.O.S. service by slidingly moving an S.O.S. cover of the portable terminal. The S.O.S. cover opening and shutting apparatus includes an S.O.S. cover for opening and shutting a part of the portable terminal by sliding movement, a rear case in which the S.O.S. cover is arranged against/in, and a bracket fixedly coupled to the S.O.S. cover to permit movement of the S.O.S. cover only in a predetermined section.

Abstract: A mobile terminal including an input device using a piezoelectric sensor and a method of operating the mobile terminal are provided. The mobile terminal includes: a body; and a piezoelectric sensor unit including a first piezoelectric sensor positioned at a first side surface of the body and to which at least one function key for performing a first specific function corresponding to a user function of the mobile terminal is set and a second piezoelectric sensor positioned at a second side surface of the body and to which at least one function key for performing a second specific function different to the first specific function is set.

Abstract: A method for photographing a panoramic picture, and for identifying motion of a photographing apparatus to automatically photograph respective images of a panoramic picture.

Abstract: Disclosed is a method for photographing a panoramic image including the steps of recognizing movement of a corresponding photographing apparatus by comparing a current real-time input image with a previous image through a motion estimation mechanism with exposure compensation, determining a time to photograph each next picture by determining whether movement in a photography direction reaches a preset threshold value, and photographing each next picture by manual or automatic operation at the determined time.

Abstract: An apparatus and method for adaptively changing a constant power level of a system in compliance with a current system specification can improve safety issues such as overheating, due to excess charging capacity. After purchase/after market add-ons to the system made by a customer can change the load such that the present invention adaptively changes the constant power level supplied to match the after initial purchase add-ons. The method includes acquiring system specification information, searching for a constant power level corresponding to the acquired system specification information, and changing a constant power level according to the searched constant power level.

Abstract: A portable device suitable for various multimedia environments includes: a main body; a folder; and a hinge unit mounted on the main body and rotatably connecting the folder to the main body. The hinge unit is slidable on the main body together with the folder. The mode-switching of the portable being provided according to the sliding position of the hinge unit.