Abstract: An RLP (Radio Link Protocol) frame receiving method transmits an RLP frame entirely and quickly in consideration of a radio environment in a mobile communication system. The method discriminates an error frame from the received RLP frame, measures a degree of loss of the received RLP frame and compares the measured degree of loss with a reference value when the error frame is detected. XID parameters (Exchange Identification Parameters) set during an initial stage of reception are varied on the basis of a comparison result and retransmission is then requested of the RLP frame corresponding to the error frame on the basis of the varied XID parameters.

Abstract: Embodiments of the present invention relate to a circuit that varies the delay time of a clock signal in response to a frequency of the clock signal. The circuit may include a sensor and a delay circuit. The sensor may output a determination of the frequency of the clock signal. The delay time of the delay circuit may be responsive to the determination of a frequency of the clock signal. Accordingly, when the frequency of a clock signal varies, a delay of that clock signal can be varied to accommodate for the change in frequency.

Abstract: An active matrix electroluminescence display device and a method for fabricating the same, whereby damage caused by UV light rays during the fabrication process can be prevented, are disclosed. The active matrix electroluminescence display device includes a plurality of transistors formed on a substrate having an emissive area and a non-emissive area defined thereon, an insulating layer formed on the substrate and the thin film transistors, a metallic protective layer formed on the insulating layer of the non-emissive area, a first electrode formed on the insulating layer of the emissive area, an electroluminous layer formed on the first electrode, and a second electrode formed on the electroluminous layer.

Abstract: A method of driving a plasma display panel that is adaptive for improving a picture quality. In the method, first and second sustain pulses having a different width during the sustain period are alternately applied to the first and second row electrodes.

Abstract: A plasma display panel may be provided having metal and auxiliary metal electrodes formed such that brightness and efficiency are improved. A plasma display panel may include transparent ITO electrodes and metal electrodes. The transparent ITO electrodes are spaced in parallel to each other at a predetermined distance within a discharge cell. The metal electrodes are formed on the transparent ITO electrodes and in parallel to the transparent ITO electrodes. Central portions of the metal electrodes are closer to a central portion of the discharge cell than central portions of the transparent ITO electrodes.

Abstract: A hinge assembly, a portable computer having the same and methods thereof can include a latching function. The hinge assembly includes a latching projection and latching groove coupled, respectively, to a main unit and a display unit of a portable computer. The latching projection and latching groove can slidingly engage with each other to hold the portable computer in a prescribed position (e.g., closed) unless a force greater than a prescribed force is applied. The hinge assembly includes a first mounting bracket; a first cam moving integrally with the first mounting bracket; a second mounting bracket fixed to a portion that can rotate relatively to the portion to which the first mounting bracket is fixed; and a second cam coupled to the second mounting bracket that rotates relatively with respect to the first cam while being in contact with and rubbed against the first cam. Thus, it is not necessary to separately provide a latch device for engagement between the display and the main body.

Abstract: A method of controlling a handover is disclosed that uses both a soft handover and a hard handover in an uplink synchronous transmission scheme to synchronize the reception timing between mobile stations in an area of a base station. The uplink synchronous timing of a mobile station established with respect to a first base station can be adjusted to the uplink synchronous timing of a second base station, after re-setting a radio link with the adjusted uplink synchronous information.

Abstract: Embodiments of the invention provide an information input system for a terminal and a multifunctional button assembly for use in the information input system and methods for operating the same. The multifunctional button assembly can include a lever control button, a rotary button and a switch that can be mounted on a substrate. The multifunctional button assembly of the invention can provide advantages in that since the number of functions provided by the multifunctional button assembly is relatively increased, more functions can be concurrently employed, and a terminal employing the multifunctional button assembly can be manufactured to be light, thin, short and compact.

Abstract: A cooling system for a portable computer can include a frame having a heat-source connecting unit in its one side and having a fan housing unit in its other side. A dissipating unit on one side of the fan housing unit performs heat exchange and a dissipating fan forms an air stream that can pass through the dissipating unit. A plate-shaped cooling unit coupled to one side of the frame can deliver heat from the heat-source connecting unit to the dissipating unit. The cooling unit can include a micro cooling unit that performs heat exchange using a cooling cycle through phase change or a plate-heat pipe filled with liquid. According to embodiments of the present invention, a thickness of the cooling system can be reduced and cooling capability efficiency can be increased.

Abstract: A method or apparatus can reduce or prevent unauthorized data access by securing data stored on a hard disk of a computer system. The method can include requesting a user to enter a password if the computer system is powered on under the condition that a password for security of the hard disk of the computer system is previously stored and data previously written on the hard disk is converted into a specific format for security and stored on the hard disk of the computer system, determining whether the password entered by the user corresponds to the previously stored password, storing the determined result, and selectively reading and outputting the format-converted data stored on the hard disk upon the user requests according to the determined result. The requested data can be output to a monitor. User write operation requests can operate according to the determined result.

Abstract: There is disclosed a conduit inspection apparatus of a type adapted to be located within and transported along a conduit such as a duct, and a method of inspecting a conduit. In one embodiment, the conduit inspection apparatus (10) comprises a body (18) adapted for location within a conduit such as a duct (14), a centralization assembly (16) for centralizing the body (18) within the duct (14), a transportation assembly (20) for transporting the body (18) along the duct (14), and a data coupling (24) for data communication between the body (18) and a control station (22). In a preferred embodiment, the apparatus (10) includes a fluid applicator (78a) for supplying a fluid to a surface of the duct (14), the fluid applicator (78a) including a rotary member in the form of an atomiser (166) for imparting a force on the fluid to direct the fluid towards a surface of the duct (14).

Abstract: A color quantization method based on an HMMD color space and a multimedia searching method using the same in extracting color features for searching multimedia, to enable searching of multimedia data which has been quantized on different levels. A quantization method is optimized to be proper for various quantization levels so as to increase search performance in an HMMD color space. And the interoperability between color features quantized into different quantization levels is provided so as to search multimedia generated from different application programs and in which a quantization rule is defined so as to maintain high search performance. Preferably, the present invention provides a color quantization method for various levels, thereby enabling to achieve high search performance on maintaining interoperability. The present invention provides a multimedia search method enabling to measure the similarity between features quantized into different levels.

Abstract: A DTV receiver test stream generator which prevents discontinuity phenomenon of a video and an audio, a method for generating the DTV receiver test stream, and a recording medium where the DTV test stream having no discontinuity phenomenon is recorded. To this end, a test stream for a function test or a performance valuation of the DTV receiver is generated and a reproduction time is equalized on the basis of the least common multiple of a video frame time, an audio frame time, and a TS packet time when the test stream is repeatedly reproduced. According to this, when used at a DTV production field where a test pattern is used or at a broadcasting system which repeatedly transmits the DTV stream of a limited length such as a stationary image, a reliability of the DTV receiver test can be ensured.

Abstract: A controlling apparatus of a mobile communication terminal using electrostatic detection includes an electrostatic detector for sensing an instantaneous voltage generated at higher than a reference level and applying it to a controller in order to recognize occurrence of a malfunction due to static electricity. Static electricity generated while a mobile terminal is in use is sensed by the controller to remove a no-sensing phenomenon of the display unit. Thus, a reliability of the mobile terminal can be enhanced and the user's convenience can be increased.

Abstract: Disclosed is a hinge structure for a flat visual display device. The hinge structure comprises: a fixed plate and pivotal plates respectively fastened to the flat visual display device and a supporting portion for straightening the flat visual display device; rotation shafts with first ends placed in the side of the fixed plate and second ends placed in the side of the pivotal plates, the first or second ends being fixed to allow relative rotational movement between the fixed and pivotal plates; braking members provided around the rotation shafts for applying braking force; and braking housings provided around the braking members and with first fixed ends opposite to the fixed ends of the rotation shaft for applying braking force to faces contacting with the braking members.

Abstract: A mount apparatus for an image displaying device is provided. The apparatus includes: a set engaging unit engaged to a rear surface of the image displaying device; a fixing unit fixed to a fixed surface; an upper connecting unit engaged with an upper portion of the set engaging unit to vertically rotate with respect to the upper portion of the set engaging unit, and slidably engaged to the fixing unit, thereby vertically rotating with respect to the upper portion of the set engaging unit depending on an up and down control of the image displaying device while varying an interval between the upper portion of the set engaging unit and the fixing unit; and a lower connecting unit for connecting a lower portion of the set engaging unit with the fixing unit and engaged with the lower portion of the set engaging unit to vertically rotate with respect to the lower portion of the set engaging unit.

Abstract: A method and apparatus of driving a plasma display panel for making a stable operation at both a low temperature and a high temperature is disclosed. In the apparatus, a temperature sensor senses a temperature of the plasma display panel. A set-down controller differently controls a voltage for causing a set-down discharge depending upon a temperature of the plasma display panel.

Abstract: Disclosed are an apparatus and method for testing performance of a mobile station having a global positioning system (GPS) mounted therein. The method provides for virtually changing parameters requited for a registration at a base station so that the mobile station excludes the registration and directly enters a test state with an idle mode, and testing the performance of the mobile station in the idle mode test state. Accordingly, no re-boot is necessary to register with the base station upon completion of the test.

Abstract: Disclosed are a mobile communication terminal provided with a hands-free function and a controlling method thereof comprising the steps of: setting a hands-free function of a mobile communication terminal; certifying whether an originating call command or a calling request message are received; searching information of a calling party inputted by a user's voice or an arbitrary originating party's information from a mounted telephone directory; and guiding the searched calling party's information by voice and then connecting a calling. According to this, the user can originate or receive a calling by using a voice recognition function and the hands-free function of the terminal without his hands' using even while driving.

Abstract: Packet call processing involving packet-based data transfers in a mobile communications system can handle a packet call if the mobile station has the ability to accommodate the packet call even when packet call collision occurs. Upon detecting a packet call collision between a first received packet call and a second received packet call, the mobile station determines whether a Network Service Access Point Identifier (NSAPI) is available and can be allocated to handle the second received packet call. Thus, an increased number of packet calls that can be processed simultaneously by the network and/or the mobile station so that Internet-based applications, as well as other high-speed data applications can be handled more effectively and efficiently. Such packet call collision detection and NSAPI allocation techniques are applicable to various wireless and/or mobile communications environments, such as GMS, GPRS, UTMS, etc. involving data packet transmissions whereby packet call collisions may occur.