Abstract: Provided is a method and apparatus for determining timing for initial ranging of user equipment by using ranging of adjacent pieces of user equipment in a multi-hop mobile relay (MMR) system, and more particularly, a method and apparatus for determining timing for initial ranging of user equipment in which a power value and a timing value for periodic ranging of adjacent pieces of user equipment are measured so as to minimize an uplink timing error of a base station. In the MMR system, user equipment transmits an initial ranging code to the base station with irregular timing while not knowing an exact start point of an uplink of the base station.

Abstract: A method for measuring a position includes: allocating a first ranging code and a first ranging region for a mobile station; receiving a second ranging code and allocation information on a second ranging region of the mobile station from a neighboring base station; transmitting the first ranging code and the second ranging code to the mobile station; receiving the first ranging code from the mobile station in the first ranging region; calculating a received timing adjustment value of the first ranging code; receiving a received timing adjustment value of the second ranging code from the neighboring base station; and measuring the position of the mobile station according to the received timing adjustment value of the first ranging code and the received timing adjustment value of the second ranging code. Therefore, the cost and efficiency can be improved by measuring the position of the mobile station by changing the ranging method used in the conventional system.

Abstract: Disclosed are a universal plug and play (UPnP) method and a UPnP apparatus providing remote access service. The method includes receiving external inputs of an identifier of a remote access server (RAS) to generate a credential and a session initiation protocol (SIP) identifier of the RAS, generating a payload of a SIP packet including a credential identifier (ID) generated based on the identifier of the RAS, remote access transport agent (RATA) capability information, and a transport address (TA) set corresponding to candidate IP addresses to access a remote access client (RAC), and transmitting the SIP packet to the RAS.

Abstract: A method and apparatus for coding a chrominance component of an intra-image using spatial predictive coding and a method and apparatus for decoding the coded chrominance component are provided.

Abstract: A method of printing a text with an apparatus using channels is provided. The method includes determining whether print data corresponds to a specified text by determining similarities between channels of print data, and determining a degree of flatness of one of the channels, searching for a boundary area in the print data if the print data is determined to correspond to the specified text, and reducing some of the channels at the boundary area, and compensating for the one of the channels by a density of the reduced channels if the print data is determined to correspond to the specified text.

Abstract: To safeguard data transmission, a first terminal communicates in a first network with the aid of at least one session key and a second terminal communicates in a second network with the aid of at least one session key. The first terminal is connected to the second terminal through a local interface. In the first terminal, at least one first session key is determined and at least one second session key is derived from the first session keys. At least one second session key is transmitted to the second terminal through the local interface by a safety protocol. The second terminal is authenticated to the second network by at least one second session key or by the key derived from the second session key(s) through an authentication protocol.

Abstract: A robot cleaner that is capable of preventing dust collected in a dust tank from flowing backward outside when a situation in which the dust may be discharged outside occurs includes a cleaner body, a dust tank mounted in the cleaner body to collect dust, and a backward-flow preventing device to prevent dust from flowing backward outside through a suction port of the dust tank. The backward-flow preventing device includes a shutter unit to open and close the suction port and a stopper unit to drive the shutter unit.

Abstract: A medium registration apparatus for an image forming apparatus. The registration apparatus includes: a subassembly including a first guide plate that guides a medium along a medium transferring direction, and a side guide disposed adjacent to one side of the first guide plate, in parallel with the medium transferring direction and is a side registration reference; a subassembly moving guide that supports the subassembly, so that the subassembly can move in a direction crossing the medium transferring direction; and a subassembly driver that drives the subassembly. The image forming apparatus includes: the registration apparatus; an image forming part; a reverse roller that reverses a transferring direction of a medium printed on by the image forming part.

Abstract: A method for driving a plasma display panel in which a plurality of first and second electrodes are arranged adjacently each other, a plurality of third electrodes are arranged to cross the first and second electrodes, the plasma display panel having a reset period, an address period, and a sustain discharge period is provided. The method includes in the reset period, applying to the second electrodes a first waveform voltage, whose applied potential increases with time, then applying to the second electrodes a second waveform voltage, whose applied potential decreases with time.

Abstract: A cleaning robot having a carpet detector and a method of detecting a carpet boundary using the same, in which the presence of the carpet on a floor is detected. The cleaning robot having a carpet detector includes a main body, a driver fixed to the main body to move the robot, and the carpet detector detecting a carpet when the robot is driven by the driver. The method of detecting a carpet boundary includes detecting a carpet using respective carpet detectors fixed to both wheels of a robot, obtaining a moving distance of the robot for an interval between times at which the respective carpet detectors detect the carpet, and calculating a boundary direction of the carpet with respect to a moving direction of the robot using the moving distance and the interval between the times at which the respective carpet detectors detect the carpet.

Abstract: Disclosed is a two-pack fluorine coating composition which comprises a combination of: a base component comprising a fluorinated copolymer having a hydroxyl group which can be dissolved in a low-polar weak solvent even at a low temperature and; a curing agent comprising a polyisocyanate compound.

Abstract: A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. A determining unit estimates the accuracy of the predictive vector generated by the prediction error generating unit based on the degrees of non-uniformity of the motion vectors of the plurality of adjacent blocks. A selecting unit selects one of the encoding results obtained by the plurality of variable-length coding units.

Abstract: A method of encoding moving pictures using a plurality of quantization matrices. The method involves selecting one of the plurality of quantization matrices in consideration of an at least one characteristics of an input image; transforming the input image; and quantizing the transformed input image using the selected quantization matrix.

Abstract: An information processing apparatus includes a code converting portion that converts a scan code output from a keyboard into a corresponding key code, a data converting portion that converts the key code into packets, and a changing portion that changes an output destination of the scan code from the code converting portion to the data converting portion, when an application software to operate a server apparatus remotely located is activated in the information processing apparatus, which is in connection with the server apparatus over a network.

Abstract: Disclosed are an imaging method and apparatus. The apparatus may include an image sensor that may include a plurality of pixels, wherein at least one pixel of the plurality of pixels includes a light-detector element and a filter that band-passes a select visible light component to the light-detector element and band-passes a select non-visible light component to the light-detector element. A color value and depth value may be obtained using the same pixel through the image sensor.

Abstract: A data transmission system includes a packet missing state data storage unit that stores packet missing state data including distribution of the numbers of consecutive missed packets in a decoder and distribution of intervals of the packet missing in the decoder; an interleave unit determination processing unit that determines, based on the distribution of the numbers of consecutive missed packets, an interleave unit that represents the number of Forward Error Correction (FEC) blocks, wherein the FEC block is a unit for which an FEC packet is generated; an FEC block determination processing unit that determines, based on the distribution of the intervals of the packet missing, the number of data packets included in the FEC block; and a packet communication processing unit that identifies, based on the determined interleave pattern data, a transmission order of the packets to the decoder.

Abstract: A mobile communications system (100), comprising at least one mobile terminal (200), a plurality of base stations (300a-300e), at least one central entity (400) adapted to manage said plurality of base stations, adapted to perform a handover, wherein: —said mobile terminal (200) is adapted to transmit a handover request message in a pre-defined slot requesting a new point of attachment; —said plurality of base stations (300a-300e) are adapted to receive said handover request message and further adapted to determine which one of said plurality of base stations (300a-300e) is to become said new point of attachment; —a base station (300a) arranged to become said new point of attachment is further adapted to transmit a handover response message to said mobile terminal (200); —said mobile terminal (200) is adapted to receive said handover response message and to change its point of attachment.

Abstract: A robot hand, which minimizes the number of actuators and adjusts the bending angles of joints through torque limiters to flexibly and finely control finger units, and a humanoid robot having the robot hand. The robot hand includes a torque limiter disposed on at least any one joint of a plurality of joints to link another joint of the plurality of joints with the any one joint through a power transmission member.

Abstract: Provided is a paging method in a broadband wireless communication system. In order to provide a paging service to a terminal in a wireless communication system in which a macrocell base station and a femtocell base station coexist, the femtocell base station receives a deregistration request message from the terminal, and checks whether the femtocell base station can provide a paging service to the terminal. When failing to provide a paging service to the terminal, the femtocell base station receives paging service information from a paging controller, includes paging service information in a deregistration confirmation message, and transmits it to the terminal, and the macrocell base station provides a paging service to the terminal.

Abstract: A method, medium, and system compressing and/or reconstructing image data. The data compression method includes compressing current data according to a plurality of modes for compressing current data, determining whether the current data compressed according to the plurality of modes can be represented by a fixed length of bits, selecting a mode from among modes in which the compressed current data can be represented by the fixed length of bits, and outputting the compressed current data according to the selected mode. Accordingly, it is possible to significantly lower the complexity of an image encoder/decoder system, and exactly meet a picture-based Control Bit Rate (CBR) suitable for a Liquid Crystal Display Dynamic Capacitance Compensation (LCD DCC) device/system.