Abstract: A user terminal and a method for providing a service for estimating a location based on a change in a state of the user terminal, are provided. The method includes sensing a change in a state of a terminal while an application that provides the service of estimating the location is being executed, and extracting one or more resources affected by the change from a plurality of resources to be used to provide the service. The method further includes filtering data corresponding to the one or more affected resources, and providing data to the application based on the filtering.

Abstract: A method of estimating a location of a terminal includes measuring a magnetic field value at a location of the terminal, estimating the location of the terminal using the measured magnetic field value, and transmitting the measured magnetic field value and information associated with the estimated location to a server. A method of modifying a magnetic field map includes receiving, from a terminal, a magnetic field value estimated at a location of the terminal, and information associated with a location of the terminal estimated based on the magnetic field value, and modifying a magnetic field map using the measured magnetic field value and the information associated with the estimated location.

Abstract: Provided are a method and an apparatus for creating a magnetic field map that extracts magnetic field information of a building from floor plan information of the building. The magnetic field map of the building may be generated based on the floor plan information and the magnetic field information.

Abstract: A wireless receiver is provided that includes a multi-step gain-control low-noise amplifier (LNA) stage and a mixer stage. The LNA stage is operable to amplify at least one input signal to generate at least one LNA output. The mixer stage is directly coupled to the LNA stage (without an intervening external bandpass filter) and is operable to down-convert the LNA output to generate a mixer output.

Abstract: Disclosed is a separation device of an ejector motor for a portable missile, capable of being separated from a missile without any additional separation devices after ejecting the missile. An ejection rocket motor and a separation device are integrally formed. Ejection is performed by a thrust generated while the ejection rocket motor is combusted, and separation is performed by cutting off shearing bolts with using a force generated from a separation cylinder when the combustion of the ejection rocket motor has been completed. This operation and configuration may minimize a weight and a space occupied by a general ejection and separation device in a missile system.

Abstract: An apparatus and a method for efficiently synchronizing data between Instant Messaging (IM) clients in a communication system. A method for requesting to synchronize data of a terminal which uses an IM service includes when data synchronization with another terminal is requested during IM communication with the other terminal, generating Synchronization Markup Language (SyncML) request data to request to synchronize a corresponding data, inserting the generated SyncML request data to an IM message, and sending the IM message to the other terminal.

Abstract: Disclosed is an assembled helical turbine system, which can strengthen weakenings of a housing assembly, and simultaneously can be easily assembled/disassembled. The assembled helical turbine system comprises the housing assembly including a plurality of bearing spiders for rotatably supporting a rotating shaft of a helical turbine, and a plurality of side posts for connecting and fixing the respective bearing spiders to each other, the side posts being fixed in such a manner as to radially protrude by a predetermined length from peripheral surfaces of the bearing spiders; filling members for filling and reinforcing spaces between the peripheral surfaces of the bearing spiders and outlines of protruding portions of the side posts; and a housing supporter for supporting the housing assembly in such a manner that the housing assembly can be inserted into and withdrawn from the housing supporter, the housing supporter having catch grooves that are recessed in a shape corresponding to stoppers.

Abstract: Disclosed is an assembled helical turbine system, which can prevent its assembly/disassembly from being hindered by a rotational force generated during the assembly/disassembly process. The assembled helical turbine system includes a helical turbine formed with a plurality of blades in such a manner as to continuously generate a rotational force under unidirectional or multidirectional fluid flow; a housing assembly for rotatably supporting the helical turbine while surrounding the helical turbine; stoppers formed on a peripheral surface of the housing assembly in such a manner as to protrude to a predetermined height from the peripheral surface; and a housing supporter for supporting the housing assembly in such a manner that the housing assembly can be inserted into and withdrawn from the housing supporter, the housing supporter having catch grooves that are recessed in a shape corresponding to the stoppers so as to fix the stoppers.

Abstract: Disclosed is a separation device of an ejector motor for a portable missile, capable of being separated from a missile without any additional separation devices after ejecting the missile. An ejection rocket motor and a separation device are integrally formed. Ejection is performed by a thrust generated while the ejection rocket motor is combusted, and separation is performed by cutting off shearing bolts with using a force generated from a separation cylinder when the combustion of the ejection rocket motor has been completed. This operation and configuration may minimize a weight and a space occupied by a general ejection and separation device in a missile system.

Abstract: Disclosed herein are a system and a method of enabling betting during a race and a storage medium storing a program for executing the method. The method includes the steps of (a) before the start of a race, allowing bets to be made based on indicated odds; and (b) after the start of the race, varying the odds depending on racing results for one or more predetermined sections and then allowing bets to be made based on the varied odds.

Abstract: A data synchronizing method between a server and a client is provided. The server and the client manage database changed after a previous synchronization of data shared by them. The database includes a sync anchor field for each data item. When a sync session is initiated upon request of the client, a last anchor is detected from the database stored in the client and a last anchor from the database stored in the server. The last anchor of the client is compared with the last anchor of the server. A client change log and a server change log are generated according to a comparison result based on a database change that occurred after the last anchor of client or server when the last anchor of the client is identical to the last anchor of the server. The databases are updated according to the client change log and the server change log.

Abstract: An apparatus and method for interference cancellation in wireless mobile stations operating concurrently in two or more wireless modes.

Abstract: The present disclosure relates generally to tunable impedance matching networks and methods for the use of such networks. In one example, a method includes identifying state information about a mobile device, accessing a memory to identify a configuration of an impedance matching network based on the state information, and applying the values from the configuration to the impedance matching network.

Abstract: A user interface apparatus and method using pattern recognition in a handy terminal with a touch screen. The apparatus and method includes receiving a specific pattern drawn on the touch screen by a user and a specific command written in a region defined by the specific pattern, and performing a function associated with a combination of the specific pattern and command when the received specific pattern and command are a valid pattern and command.

Abstract: An architecture for a receiver component in a wireless communications system is disclosed—one that supports both zero intermediate frequency (ZIF) and near-zero intermediate frequency (NZIF) operation. The architecture provides a down-conversion segment, and a local oscillator segment operatively associated with the down-conversion segment. An analog-to-digital conversion (ADC) segment is adapted to receive signals from the down-conversion segment and introduce the signals into a digital intermediate frequency (DIF) construct. The DIF construct performs a DC offset compensation or DC residue filtering on NZIF-based signals, and droop or mismatch compensation. Image removal is performed on NZIF-based signals, and DC offset compensation is performed on ZIF-based signals. Compensated signals are amplified to some nominal or desired level, and interpolation filtering of the amplified signals is performed prior to transmission thereof.

Abstract: A method for performing handover between multiple modes for a mobile station is provided. The method includes operating the mobile station in a first mode. A handover from the first mode to a second mode is performed using a single wireless receiver. The mobile station operates in the second mode after performing the handover.

Abstract: An architecture for a receiver component in a wireless communications system is disclosed—one that supports both zero intermediate frequency (ZIF) and near-zero intermediate frequency (NZIF) operation. The architecture provides a down-conversion segment, and a local oscillator segment operatively associated with the down-conversion segment. An analog-to-digital conversion (ADC) segment is adapted to receive signals from the down-conversion segment and introduce the signals into a digital intermediate frequency (DIF) construct. The DIF construct performs a DC offset compensation or DC residue filtering on NZIF-based signals, and droop or mismatch compensation. Image removal is performed on NZIF-based signals, and DC offset compensation is performed on ZIF-based signals. Compensated signals are amplified to some nominal or desired level, and interpolation filtering of the amplified signals is performed prior to transmission thereof.

Abstract: A receiver system design and architecture that implements a 3-step gain LNA and an analog VGA for a WCDMA handsets and local area base stations, providing a wireless device eliminating the use of external bandpass filter between low-noise amplifier and first mixer.

Abstract: A reconfigurable wireless transceiver and method of use are disclosed. As one example, a reconfigurable wireless transceiver is disclosed, which includes a transmitter unit, a plurality of receiver units, and a processing unit coupled to the plurality of receiver units. A first receiver unit of the plurality of receiver units receives a first signal at a first frequency, and determines a strength level of the first signal. A second receiver unit of the plurality of receiver units searches for a second signal at a second frequency, detects the second signal at the second frequency, and determines a strength level of the detected second signal. The processing unit determines if the strength level of the detected second signal is greater than a predetermined value, and enables the second receiver unit to receive a third signal at substantially the second frequency, if the strength level of the detected second signal is greater than the predetermined value.

Abstract: A multimode/multiband mobile station and a method for operating the same are provided. A transmission module transmits multimode/multiband signals through transmitters. A reception module receives radio signals for different services of the same frequency band among multimode/multiband signals through receivers for the same frequency band, and receives radio signals of different frequency bands among the multimode/multiband signals through receivers for the different frequency bands. As compared with the conventional mobile station, the multimode/multiband mobile station can reduce the number of receivers by making use of one receiver to receive radio signals for different services of the same frequency band. The multimode/multiband mobile station can use a duplexer of the conventional frequency division duplex (FDD) technique (e.g., wideband code division multiple access (WCDMA)) in a time division duplex (TDD) technique (e.g.