Abstract: An apparatus and method in a broadband wireless communication system are provided. The apparatus includes a Base Station (BS) which includes a manager for increasing a set point associated with a Mobile Station (MS) if an error is detected in a burst received from the MS, a detector for incrementing a counter associated with the MS if a difference, between a maximum Transmission (Tx) power of the MS and a Tx power used by the MS when transmitting the burst in which the error was detected, is less than a difference threshold, and a determining unit for providing control such that a number of slots allocated to the MS decreases if the counter associated with the MS is greater than a counter threshold.

Abstract: Apparatus and method for guaranteeing a Quality of Service (QoS) traffic rate in a mobile communication system are provided. The scheduling method for guaranteeing a QOS traffic rate in a mobile communication system includes calculating a total sum of traffic rates based on a channel change and a total sum of sustained traffic rates; calculating a weighted traffic rate using the traffic rate based on the channel change and the sustained traffic rate when the sustained traffic rate does not meet the QoS traffic rate; and determining a service priority using the weighted traffic rate. Therefore, the minimum reserved traffic rate and the maximum sustained traffic rate can be assured.

Abstract: An LCD corrects deviations in pixel kickback voltages caused by delays in gate driving signals. The LCD includes a timing controller generating first and second output enable signals, first and second level shifters respectively generating first and second gate clock pulses and inverted clock pulses, and first and second gate drivers respectively generating first and second gate driving signals. A precharge time of the first gate driving signals is controlled by the pulse width of the first output enable signal and a precharge time of the second gate driving signals is controlled by the pulse width of the second output enable signal.

Abstract: A meandered slit antenna is provided. The meandered slit antenna includes: a printed circuit board; an RF module mounted on the printed circuit board to generate a predetermined electric signal; a microstrip feed line connected with the RF module to transmit the predetermined electric signal; and a slot part for radiating an electromagnetic wave induced by the electric signal that is transmitted through the microstrip feed line, the slot part being formed in a meandered shape.

Abstract: Disclosed is a scheduling method in a communication system including a plurality of mobile stations (MSs) and a base station (BS) for providing a communication service to the MSs. The scheduling method includes determining candidate transmission formats of the MSs according to channel status information fed back from the MSs and levels of transmission power of the MSs; and calculating priorities of the determined candidated transmission formats, and determining a transmission format having the highest priority among the candidated transmission formats, as a transmission format for each of the MSs.

Abstract: Disclosed is a method for controlling interference signals by a base station in a wireless mobile communication system, the method including classifying a plurality of mobile stations into first and second mobile station groups including the mobile stations having good channel conditions and the mobile stations having poor channel conditions, respectively; and setting first and second thresholds for controlling interferences of the mobile stations belonging to the first mobile station group, adjusting downward an Modulation and Coding Scheme (MCS) level for the mobile stations having Rise over Thermal (RoT) values higher than the first thresholds, and adjusting downward the maximum allowable MCS level for the mobile stations having RoT values lower than the second threshold.

Abstract: A foldable wireless headset is introduced comprising an elongated bar-shape main body, a hinged earphone attached at the proximal end of the main body, and an earphone position guidance for maintaining the earphone stationary at the selected position with respect to the main body either one of an extending position, retracting position and intermediate position. The wireless headset enhances operational stability, saves manufacturing costs, is easily carried, and is convenient to use. Also, the wireless headset can be automatically turned on and off in response to the extraction and retraction of the earphone.

Abstract: Provided is a wireless mobile communication system in which a mobile station reports a headroom value indicating the magnitude of currently used transmission power and additionally usable transmission power. An uplink scheduling method of a Base Transceiver Station (BTS) includes normalizing the headroom value according to a pre-set reference transmission format; determining a mean data rate of the mobile station; and determining a priority of the mobile station considering the normalized headroom value and the mean data rate.

Abstract: A Bluetooth wireless headset is invented comprising an earphone having a speaker, a telescopic part, to which the earphone is attached, and a body including a built-in Bluetooth chip. The body is bar-shaped and has a space for receiving the telescopic part. The telescopic part is movable through the space between the earphone and the body. The earphone moves inward to a stowed position in response to a single push and moves outward to an extended position in response to a second push, so as to be conveniently used and stored.

Abstract: An uplink scheduling system and method in a wireless broadband internet communication system includes calculating priorities of mobile stations (MSs) taking into account headroom size indicating transmission power additionally available for each of the MSs; and determining a transmission format of an MS selected to be preferentially allocated a slot as a result of the priority calculation, taking into account headroom size reported by the selected MS and a margin determined depending on a variation in channel state between the selected MS and a base station (BS).

Abstract: A method and device for controlling a selection of the menu displayed on a screen of a TV or PC using a pointing device. The method includes the steps of apportioning the screen for a plurality of menu fields each to include a specified area surrounding a respective menu item, and enabling the menu item included in one of the menu fields indicated by the pointer of the pointing device to be selected.