Abstract:
An apparatus and method for controlling a transmit power of a sounding signal in a wireless communication system are provided. The method includes estimating a downlink Carrier to Interference and Noise Ratio (CINR) using at least one signal received from a Base Station (BS), determining a transmit power level for a sounding signal using a target CINR for the sounding signal, wherein the target CINR is determined based on the downlink CINR and multi-target CINR information, and transmitting the sounding signal according to the transmit power level.
Abstract:
Provided is an apparatus and method for enhancing a demodulation performance of a receiver in a Broadband Wireless Access (BWA) system. A receiving apparatus in a broadband wireless communication system includes an estimator, a first calculator, and a second calculator. The estimator estimates a desired signal. The first calculator calculates a correlation matrix of a signal obtained by eliminating the estimated desired signal from a Received (RX) signal. The second calculator performs an interference elimination using the correlation matrix.
Abstract:
An apparatus and method for combining images of a mobile terminal that receives broadcast image signals. A capture module is used for capturing and storing a specific scene of a broadcast image; a first processor is used for selecting a first image of images stored in the terminal, converting the first image into a translucent image, scaling down the first image, or extracting an object image from the first image; and a second processor is used for selecting a second image of the images stored in the terminal and overlapping the scaled-down image or the object image onto the second image.
Abstract:
An apparatus and a method for determining an optimum integer perturbation vector of a low complexity in a multiple antenna system include a transmitter that transmits data using an optimum integer perturbation vector of a low complexity in a multiple antenna system includes a module pre-processor, a shift pre-processor, and a precoder. The modulo pre-processor adds an integer perturbation vector to a transmission signal vector. The shift pre-processor phase-shifts a pseudo inverse matrix of a channel matrix using a phase angle. The precoder precodes a transmission signal vector perturbed by the integer perturbation vector using the phase-shifted pseudo inverse matrix of the channel matrix.
Abstract:
A self-magnetizing motor incorporates a control circuit that starts the motor, controls a magnetizing unit, and then operates the motor. The control circuit can include relay, such as a bi-directional conductive power semiconductor device, and one or more PTC (Positive Temperature Coefficient) switches. This control circuit eliminates the need for a separate controller and the implementation costs can be reduced.
Abstract:
Provided is an apparatus and method for enhancing a demodulation performance of a receiver in a Broadband Wireless Access (BWA) system. A receiving apparatus in a broadband wireless communication system includes an estimator, a first calculator, and a second calculator. The estimator estimates a desired signal. The first calculator calculates a correlation matrix of a signal obtained by eliminating the estimated desired signal from a Received (RX) signal. The second calculator performs an interference elimination using the correlation matrix.
Abstract:
Provided are a self magnetizing motor and a method for winding coils on a stator thereof, wherein two exciter poles are positioned at an inner circumferential surface of the stator to face each other, and an exciter magnetizable portion is disposed at an outer circumferential surface of a rotor to thus be selectively magnetized by the exciter poles, whereby the self magnetizing motor can be operated by an induced electromotive force generated by a main coil, a sub coil and a conductive bar of a rotor from its initial driving to a speed prior to a synchronous speed, and operated by a magnetomotive force generated by the exciter poles and the exciter magnetizable portion at the synchronous speed, thereby improving an efficiency of the motor, a power factor, and a synchronization characteristic.