Patent application number | Description | Published |
20100150273 | DEVICE AND METHOD FOR BINARY PHASE SHIFT KEY DEMODULATOR USING PHASE SHIFTER - Disclosed is a binary phase shift key (BPSK) demodulating device using a phase shifter and a method thereof. The BPSK demodulating device includes an I signal generator to generate an in-phase (I) signal from a received BPSK signal, a Q signal generator to generate a quadrature-phase (Q) signal from the received BPSK signal, using a plurality of phase shifters, an oscillator to generate a first signal to separate a baseband signal, and a determining unit to determine a transmission phase angle based on the I signal and the Q signal. | 06-17-2010 |
20110151815 | SYSTEM AND METHOD FOR IDENTIFYING GAUSSIAN RADIO NOISE - Provided is a system and method of identifying Gaussian radio noise. The Gaussian radio noise identifying system may determine whether measured data of radio noise indicates a Gaussian distribution. The Gaussian radio noise identifying system may determine whether the measured data indicates the Gaussian distribution through a matching test consisting of two operations. The operations may include a matching test between an average estimate value of measured and a ½, and a matching test between a standard deviation estimate value and a result value obtained by dividing an H-range by a predetermined value. Accordingly, it is possible to enhance a determination accuracy. | 06-23-2011 |
20110154126 | METHOD AND SYSTEM FOR ANALYZING ERROR PROBABILITY OF COMMUNICATION SYSTEM USING GAUSSIAN Q FUNCTION - Provided is a method and system for calculating a bivariate Gaussian Q function using a univariate Gaussian Q function to thereby analyze an error probability of a communication system. A method of calculating an error probability of a communication system may include: receiving encoded communication information from another communication system; restoring information desired to be transmitted by another user by decoding the encoded communication system; and calculating the error probability by analyzing the restored information using a bivariate Gaussian Q function, the error probability indicating a probability that the restored information is different from the information desired to be transmitted by the other user. The calculating may include calculating the bivariate Gaussian Q function using a univariate Gaussian Q function. | 06-23-2011 |
20120158381 | METHOD AND APPARATUS FOR VARIANCE ESTIMATION IN AMPLITUDE PROBABILITY DISTRIBUTION MODEL - A variance estimation apparatus for an amplitude probability distribution (APD) model includes: an APD curve calculation unit for calculating an APD curve of an APD model for noise of an electronic device; and a linearity determination unit for determining a linearity of a slope of the APD curve calculated by the APD curve calculation unit. The apparatus further includes a variance processing unit for selectively performing equivalent variance processing or different variance processing based on the linearity determination result obtained from the linearity determination unit. | 06-21-2012 |
20130226516 | MAGNETIC FIELD INTENSITY CONVERSION DEVICE AND METHOD - Disclosed is a magnetic field intensity conversion method in a magnetic field intensity conversion device configured to convert and output magnetic field intensity for each distance from a magnetic field source, and the method includes: receiving a reference distance and a target distance from the magnetic field source through an input unit; primarily comparing the reference distance with a critical value calculated in accordance with the wavelength of an electromagnetic wave, in a control unit; secondarily comparing the target distance with the critical distance, in the control unit; and calculating conversion magnetic field intensity by converting reference magnetic field intensity prescribed for the reference distance into magnetic field intensity at the target distance, on the basis of the comparing results in the primary comparing and the secondary comparing, in the control unit. | 08-29-2013 |
20130265893 | APPARATUS FOR ANALYZING INTERFERENCE OF WIRELESS COMMUNICATION DEVICE, AND SYSTEM AND METHOD FOR ANALYZING INTERFERENCE USING THE SAME - An apparatus for analyzing interference of a wireless communication device includes a frequency detector configured to detect a frequency signal in a low frequency band that is generated in a wireless communication device; and a band-pass filter configured to extract an interference signal reflecting auditory sensitivity at each frequency, in an audible frequency band of the detected frequency signal. Further, the apparatus includes a voltmeter configured to measure a magnitude of the extracted interference signal at each frequency; and an interference determination block configured to determine whether there is an influence of interference of the wireless communication device on an audio device by comparing an interference level of the measured interference signal with a preset interference reference value. | 10-10-2013 |
20140129168 | APPARATUS AND METHOD FOR ANALYZING DISTRIBUTION OF ELECTROMAGNETIC WAVE IN RADIO WAVE SYSTEM - Disclosed are an apparatus and a method for analyzing a distribution of electromagnetic waves using a 4-port transverse electromagnetic (TEM) cell in a radio wave system. The apparatus for analyzing a distribution of electromagnetic waves in a radio wave system includes: an input unit configured to apply a reference electrostatic potential to an inside of a 4-port transverse electromagnetic (TEM) cell in which electronic devices are located; a calculation unit configured to calculate electrostatic potentials inside the 4-port TEM cell using a mode matching scheme; an analysis unit configured to analyze the distribution of electromagnetic waves inside the 4-port TEM cell through the electrostatic potentials inside the 4-port TEM cell; and an output unit configured to output the distribution of electromagnetic waves inside the 4-port TEM cell. | 05-08-2014 |
20140136134 | METHOD AND APPARATUS FOR CALCULATING ELECTROMAGNETIC WAVE FROM ELECTRONIC DEVICE - A method of calculating an electromagnetic wave, includes measuring an electromagnetic wave emitted from an electronic device using an electromagnetic-wave scanner; and receiving the electromagnetic wave as input to detect an electromagnetic wave value in a proximity plane at a prescribed first distance from the electronic device. Further, the method includes calculating an electromagnetic wave at a point by a second distance from the electronic device using the electromagnetic wave value. | 05-15-2014 |
20140148113 | APPARATUS AND METHOD FOR EVALUATING STATISTICAL INTERFERENCE CONCERNING MULTI-SOURCE NOISE ENVIRONMENT OF ELECTROMAGNETIC ZONE - An apparatus and method for evaluating statistical interference concerning a multi-source noise environment of an electromagnetic (EM) zone are disclosed. The apparatus for evaluating statistical interference may include a receiver to receive an EM wave in a preset frequency band, a spectrum analyzer to analyze the received EM wave and to measure interference in the preset frequency band, a frequency selector to select an interest frequency in the frequency band based on a level of the measured interference, an amplitude probability distribution (APD) measurement unit to measure an APD of an interference signal with respect to the interest frequency, and a comparator to compare the measured APD to a preset limit and to draw a probability of the limit or higher of interference occurring. | 05-29-2014 |
20140159706 | TRANSVERSE ELECTROMAGNETIC CELL - A TEM cell includes an untapered region part configured to have a straight-line structure in which a cross-sectional area of an internal space is constantly maintained, tapered region parts coupled between both sides of the untapered region part and a connection part and each configured to have a tapered structure in which the cross-sectional area of the internal space is reduced toward the connection part, wherein a horizontal length of the tapered region part and a horizontal length of the untapered region part are determined in such a way as to reduce an electromagnetic field component in a direction vertical to a cross section of the untapered region part. The EMS evaluation performance of the TEM cell can be improved because an unnecessary electromagnetic field component can be reduced by designing the horizontal length of the untapered region longer than the horizontal length of the tapered region. | 06-12-2014 |
20140314185 | METHOD AND APPARATUS FOR IMPULSIVE NOISE MITIGATION USING ADAPTIVE BLANKER BASED ON BPSK MODULATION SYSTEM - A method for impulsive noise mitigation using an adaptive blanker based on BPSK modulation system includes estimating narrowband Middleton parameters of impulsive noise from signals received for a fixed time period; calculating a threshold using the estimated narrowband Middleton parameters; operating the first blanker to suppress impulsive noise from the signal received at a given point of time through the comparison of the SNR value of the received signal and the threshold. Further, the method includes operating the second blanker to suppress impulsive noise from the received signal through the comparison of the summation of the threshold and the SNR value with an absolute value of the received signal, when the SNR value is above the threshold. | 10-23-2014 |
20150241492 | ANALYZING METHOD OF JUNCTION OF COAXIAL PROBE FOR MEASURING PERMITTIVITY AND ANALYZING APPARATUS THEREOF - Disclosed is an analyzing apparatus of a junction of a coaxial probe for measuring permittivity, including: a first calculation module which calculates a first expression for a field of a first area by using an Eigenfunction expansion method; a second calculation module which calculates a second expression for a field of a second area contacting the first area by using an associated Weber transform integral method; a simultaneous equation calculation module which calculates simultaneous equations by using the first expression and the second expression; and an admittance calculation module which calculates admittance for a junction area including the first area and the second area by using the simultaneous equations. | 08-27-2015 |
20160127099 | METHOD AND APPARATUS FOR GENERATING PILOT PATTERN FOR MIMO ANTENNA - Disclosed are a method for generating a pilot pattern and an apparatus thereof. The method for generating a pilot pattern for MIMO antennas includes: determining a size of a slot that is an interval where a pilot pattern is repeated in a time domain and a frequency domain; determining a pilot inserting position of OFDMA symbols included in a slot determined for a first antenna; and determining a pilot inserting position of OFDMA symbols included in a slot determined for a second antenna, in order to have a sub-carrier different from a sub-carrier of the pilot inserting position of the OFDMA symbols included in the slot determined for the first antenna. | 05-05-2016 |
20160135135 | METHOD AND APPARATUS FOR COMMUNICATION FOR COEXISTING WITH WIRELESS-LAN IN NON-LICENSED BAND - Disclosed is a communication method for coexisting with a non-licensed band communication system of a non-licensed band in a licensed band communication system. The method includes: transmitting a signal by a transmitter in order to operate in a non-licensed band, when the signal is a transmission target signal having frames and a wireless local area network (WLAN) preamble signal is inserted to the front of each frame of the transmission target signal; and extracting the WLAN preamble signal from the signal of the transmitter by a receiver to synchronize with the transmitter. | 05-12-2016 |
Patent application number | Description | Published |
20130142235 | METHOD AND APPARATUS FOR DETECTING ENVELOPE - A method and apparatus for detecting an envelope are provided. The method and apparatus may detect an envelope of a modulating signal based on a low calculation complexity and a simple circuit configuration, by detecting an envelope for a plurality of sampling signals with equal time intervals. | 06-06-2013 |
20130175873 | METHOD AND APPARATUS FOR WIRELESSLY TRANSMITTING ENERGY BASED ON FRAME - An apparatus for wirelessly transmitting energy based on a frame is provided. The apparatus includes a transmitter configured to transmit, to at least one reception device, energy in a frame unit through a mutual resonance between a source resonator and a plurality of target resonators, and a controller configured to determine information included in the frame based on whether energy is transmitted to the at least one reception device, or based on whether data is transmitted to the at least one reception device. | 07-11-2013 |
20130178156 | NEAR FIELD COMMUNICATION (NFC) SECURITY APPARATUS AND METHOD - A method and apparatus for security of communication devices that communicate with each other in a near field are provided. A Near Field Communication (NFC) security apparatus may detect the presence of a neighboring device other than communication devices, based on a change in a near field. In response to detecting the presence of the neighboring device, the NFC security apparatus may control an amount of energy transmitted by the communication devices such that the neighboring device may be prevented from accurately receiving a signal transmitted between the communication devices. | 07-11-2013 |
20130259167 | METHOD AND APPARATUS FOR DETECTING ENVELOPE USING DIFFERENCE BETWEEN SAMPLING SIGNALS - A method and an apparatus for detecting an envelope using a difference between sampling signals are provided. The method includes generating sampling sets based on sampling signals of a modulated signal, and determining a sampling set from the sampling sets. The method further includes determining an envelope component value associated with a sampling signal among sampling signals included in the determined sampling set, based on a difference between the sampling signals included in the determined sampling set, and a difference between sampling signals included in each of the sampling sets other than the determined sampling set. The method further includes detecting an envelope of the modulated signal based on the envelope component value. | 10-03-2013 |
20130270920 | WIRELESS ENERGY RECEIVING APPARATUS AND METHOD, AND WIRELESS ENERGY TRANSMITTING APPARATUS - An apparatus and a method for wirelessly receiving and transmitting energy are provided. A wireless energy receiving apparatus in a terminal configured to wirelessly receive energy through mutual resonance between a resonator of an energy supply apparatus configured to supply the energy and a resonator of the terminal, includes an energy measuring unit configured to measure an amount of energy stored in the terminal. The wireless energy receiving apparatus further includes a control unit configured to change a state of the resonator of the terminal from a non-resonant state to a resonant state when the measured amount of energy is less than or equal to a predetermined threshold. | 10-17-2013 |
20130278072 | WIRELESS ENERGY TRANSMISSION APPARATUS AND METHOD, AND WIRELESS ENERGY RECEPTION APPARATUS - A wireless energy transmission apparatus wirelessly transmits energy through resonance between a source resonator and a target resonator. The apparatus scans an amount of energy stored in the source resonator for a scanning period, calculates a total amount of energy stored in the source resonator and the target resonator during an off-resonant interval between the source resonator and the target resonator based on the amount of energy scanned, and estimates an amount of energy induced in the target resonator based on the amount of energy stored in the source resonator and the total amount of energy calculated. | 10-24-2013 |
20130278318 | SIGNAL PROCESSING APPARATUS AND METHOD - An apparatus and a method for processing a signal, and for estimating a point corresponding to a maximum slope from an envelope of an input signal, are provided. A signal processing apparatus includes an envelope detecting unit configured to detect an envelope of an input signal. The signal processing apparatus further includes a correcting unit configured to correct slopes, each of the slopes being between respective points of the envelope, based on information on a clipping interval of the envelope. The signal processing apparatus further includes an estimating unit configured to estimate a point, of the envelope, in which a corrected slope, among the corrected slopes, includes a maximum value. | 10-24-2013 |
20140011449 | DATA RECEPTION APPARATUS AND METHOD, DATA TRANSMISSION APPARATUS, AND DATA COMMUNICATION SYSTEM - A data reception apparatus configured to discharge, prior to receiving data from an energy receiving apparatus, energy stored in a source resonator during a mutual resonance between the source resonator and a target resonator, and demodulate data received from the energy receiving apparatus based on an amount of energy reflected from the target resonator after the energy stored in the source resonator is discharged. | 01-09-2014 |
20140028107 | APPARATUS AND METHOD FOR WIRELESSLY RECEIVING POWER - A wireless power receiver includes a receiving unit configured to wirelessly receive power through a resonance between a source resonator and a target resonator. The wireless power receiver further includes a control unit configured to connect the target resonator to at least one capacitor to control a range of a voltage output from the target resonator. | 01-30-2014 |
20140117771 | WIRELESS POWER TRANSMISSION APPARATUS AND METHOD - A wireless power transmission apparatus includes a resonator configured to transmit power to another resonator, and a power supply unit configured to supply power to the resonator. The apparatus further includes a switching unit including a transistor configured to be turned on to connect the power supply unit to the resonator, and to be turned off to disconnect the power supply unit from the resonator, based on a control signal, and a diode connected in series to the transistor. | 05-01-2014 |
20140361736 | WIRELESS POWER TRANSMISSION APPARATUS FOR HIGH EFFICIENCY ENERGY CHARGING - A wireless power transmission apparatus for high efficiency energy charging, includes a resonator configured to transmit power, and a power supply unit configured to supply power to the resonator. The apparatus further includes a first switching unit configured to connect the resonator to the power supply unit, and disconnect the resonator from the power supply unit, and a controller configured to control the first switching unit based on an amount of current flowing into the resonator. | 12-11-2014 |
20140368424 | PRESENTATION DEVICE AND METHOD FOR OPERATING THE DEVICE - A presentation device and an method of operating the presentation device may quickly move to a desired area on a map by adjusting a level of an electromyographic (EMG) signal even though a range of a motion of an arm is limited when searching the map using a wearable mobile device. The presentation device includes a first sensor unit configured to contact a measurement target and to obtain an electromyographic (EMG) signal from the measurement target; and a display controller configured to control a field of view (FOV) window for displaying a map area based on the EMG signal. | 12-18-2014 |
20140368474 | DEVICE, METHOD, AND SYSTEM TO RECOGNIZE MOTION USING GRIPPED OBJECT - A device, a method, and a system recognize a motion using a gripped object. The motion recognition device may estimate a state of a wrist of a user according to a writing action using the gripped object and may estimate a joint motion of a body part related to the wrist according to the writing action. The device may then estimate a state of the gripped object according to the state of the wrist and the joint motion. Additionally, the motion recognition device may control an external device by using a control signal generated by continuously tracking the state of the object. | 12-18-2014 |
20150035379 | METHOD AND APPARATUS FOR WIRELESS ENERGY RECEPTION USING HYBRID SYNCHRONIZATION - A wireless energy reception apparatus includes a target resonator configured to receive energy on a frame-by-frame basis from an energy transmission end through a resonance with a source resonator in a symbol duration constituting a criterion for transmitting energy from the energy transmission end to an energy reception end; a load end configured to receive power from the target resonator; a switching unit configured to connect the target resonator to the load end, and disconnect the target resonator from the load end; and a controller configured to control symbol synchronization by detecting a start point of a symbol based on a distance between the source resonator and the target resonator. | 02-05-2015 |
20150036768 | METHOD AND APPARATUS FOR ADAPTIVELY SETTING THRESHOLD FOR SIGNAL DEMODULATION - Provided is a method and apparatus to adaptively set a threshold for signal demodulation. The apparatus and the method include adaptively setting a threshold to demodulate a currently received symbol based on the demodulation value of a previously received symbol based on a comparison value. The comparison value is obtained by comparing a number of previously received symbols having a demodulation value of “0” and a number of currently received symbols having a demodulation value of “1”. | 02-05-2015 |
20150074797 | WEARABLE DEVICE PERFORMING USER AUTHENTICATION USING BIO-SIGNALS AND AUTHENTICATION METHOD OF THE SAME - A wearable device includes a first sensor configured to detect a first biosignal generated in response to a gesture performed by a user, and a second sensor configured to detect a second biosignal of the user. The device further includes a memory configured to store, with respect to at least one user, information of the first biosignal and the second biosignal, and a processor configured to initiate user authentication based on a result of determining whether the detected first biosignal corresponds to the stored information, and authenticate the user by comparing the detected second biosignal to the stored information. | 03-12-2015 |
20150180240 | WIRELESS POWER TRANSMISSION APPARATUS AND ENERGY CHARGING APPARATUS - A wireless power transmission apparatus includes a resonator configured to transmit power through a resonance with another resonator, a switch configured to connect the resonator to a power source, a setting unit configured to set a target amount of current to flow in the resonator, and a control unit configured to control the switch based on the target amount of current. | 06-25-2015 |
20160087760 | METHOD AND APPARATUS FOR STABLE SIGNAL DEMODULATION IN COMMUNICATION SYSTEM - A method and apparatus provide for stable signal demodulation in a communication system. The method and apparatus includes including detecting an erroneous demodulation value based on backward-demodulation of received signals, using a difference between a received signal to be demodulated and a preceding signal of the received signals and correcting the error demodulation value. Alternatively, backward-demodulation is used to confirm received signals. | 03-24-2016 |
20160106371 | COOPERATIVE SENSING METHOD AND TERMINAL FOR PERFORMING COOPERATIVE SENSING - A cooperative sensing method of a terminal, the method including transmitting a request to a cooperative terminal connected with the terminal, to verify a sensing performance capability of the cooperative terminal, receiving, from the cooperative terminal, first capability information generated in response to the request, and selecting, by the terminal, a sensing terminal based on the first capability information and second capability information generated by verifying a sensing performance capability of the terminal. | 04-21-2016 |
20160112775 | WEARABLE SENSOR TO MONITOR BIOSIGNAL AND METHOD TO MONITOR BIOSIGNAL USING WEARABLE DEVICE - A wearable device to monitor a biosignal includes a wearable sensor configured to monitor the biosignal of an individual and an interactor configured to supply a charging power to the wearable sensor in response to a connection to the wearable sensor. | 04-21-2016 |