Patent application number | Description | Published |
20090117867 | SCALABLE BANDWIDTH SYSTEM AND METHOD OF CONTROLLING TUNABLE FILTER - The present invention relates to a scalable bandwidth system and a method of controlling a tunable filter. In the present invention, the scalable bandwidth system inputs, as a control signal of a tunable filter, a voltage corresponding to a section in which the capacitance according to an applied voltage is not practically changed for characteristics of varactor diodes, and inputs each control bit of the control signal to each varactor diode of the tunable filter to adjust the capacitance of each of the varactor diodes, and consequently adjusts the capacitance of the tunable filter by adding the capacitance of the varactor diodes. | 05-07-2009 |
20100118744 | WIRELESS TRANSCEIVER SYSTEM FOR SUPPORTING DUAL MODE - The present invention relates to a wireless transceiver system for supporting a dual mode, and more particularly to a wireless transceiver system for supporting a dual mode that simultaneously supports the Frequency Division Duplex (FDD) method and the Time Division Duplex (TDD) method in a certain frequency band. The present system supports the FDD system conducting transmission and reception simultaneously by using different frequency bands for transmission and reception as well as the TDD system temporally alternating transmission and reception by using the common frequency band among an upper frequency band and a lower frequency band used in the FDD system as well as another frequency band adjacent thereto, thereby selectively supporting both of the two communication systems in a wireless transceiver system. Therefore, efficient use of various wireless communication standards and the limited frequency resource is provided, and on this basis, an efficient application of all wireless transceiver systems adopting the TDD system and the FDD system as well as the mobile communication base station and the terminal is provided. | 05-13-2010 |
20100227208 | ELECTROCHEMICAL CELL HAVING QUASI-BIPOLAR STRUCTURE - Provided is an electrochemical cell having a quasi-bipolar structure, particularly, a case of the electrochemical cell in which an electrode assembly is accommodated. A reliable electrolyte isolation barrier wall is disposed between the case and the electrode assembly, and an electric connection part constructed using the case is provided for the electrochemical cell for voltage equalization. | 09-09-2010 |
20100227209 | ELECTROCHEMICAL CELL HAVING QUASI-BIPOLAR STRUCTURE - An electrolyte injection hole is formed in a current collector extension part between negative and positive active material layers of a quasi-bipolar electrode, and another electrolyte injection hole corresponding to the electrolyte injection hole of the quasi-bipolar electrode is formed in a sidewall of a hollow core around which the electrode is wound, so as to easily inject a predetermined amount of electrolyte into each unit cell of an electrode assembly through an electrolyte injection port and the core. Therefore, simple, reliable, and easy-to-manufacture electrochemical cell can be provided. | 09-09-2010 |
20100273035 | STACKING TYPE ELECTROCHEMICAL CELL HAVING QUASI-BIPOLAR STRUCTURE - Provided is a stacking type quasi-bipolar electrochemical cell having a reliable, easy-to-manufacture, and simple structure. The electrochemical cell includes: an electrode including a current collector, and positive and negative active material layers disposed at both sides of the current collector and spaced apart from each other with a current collector extension part being located therebetween, wherein a polarity of the electrode is used as an opposite polarity in a neighboring cell; an electrode assembly formed by stacking a plurality of electrodes including the electrode; and an electric connection part connecting some of the electrodes of the electrode assembly which are included in the same series, the electric connection part connecting the some electrodes in parallel. | 10-28-2010 |
20110133999 | APPARATUS AND METHOD FOR MEASURING RADIATED POWER OF TERMINAL - An apparatus for measuring radiated power of a terminal includes: an enclosure including a pair of couplers configured to couple an electromagnetic field radiated from the terminal or a substitution antenna and a measurement jig configured to rotate the terminal or the substitution antenna, the terminal or the substitution antenna being supposed to be arranged between the pair of couplers, with reference to at least one of X, Y, and Z axes; a driver installed outside the enclosure to drive the measurement jig; a signal generator configured to generate a feed signal transferred to the substitution antenna when the substitution antenna is arranged on the measurement jig; a feed signal transmitter configured to transfer the feed signal generated by the signal generator to the substitution antenna; and a spectrum analyzer configured to measure power of a radiated signal radiated from the terminal or the substitution antenna. | 06-09-2011 |
20110134000 | APPARATUS AND METHOD FOR DETECTING RADIATED POWER - A radiated power detection apparatus including a reception antenna and a probe in a Fresnel zone determines a measurement parameter of a wireless communication device and coincides central points of an antenna that is included in the wireless communication device, the reception antenna, and the probe. Next, the radiated power detection apparatus measures the magnitude of an electric field corresponding to at least one measurement point while transferring the reception antenna and the probe according to a measurement parameter, calculates the magnitude of a maximum electric field in a far-field using the magnitude of an electric field, and thus detects radiated power of the wireless communication device based on the magnitude of a maximum electric field. | 06-09-2011 |
20110150317 | SYSTEM AND METHOD FOR AUTOMATICALLY MEASURING ANTENNA CHARACTERISTICS - An apparatus for automatically measuring characteristics of an antenna recognizes an object of the antenna based on an antenna image received from an external image capturing device, and extracts a parameter by using the recognized object of the antenna. The apparatus then authentically controls the position and direction of the image capturing device and an antenna characteristic measurement instrument by using the extracted parameter to thus automatically measure the characteristics of the antenna. | 06-23-2011 |
20110204722 | VOLTAGE EQUALIZATION CIRCUIT FOR ELECTRIC ENERGY STORAGE DEVICE - The present invention is aimed at providing a simple and inexpensive device for equalizing voltage between electric energy storage cells such as batteries or capacitors connected in serial in an electric energy storage device. The invention provides a voltage equalization device that enables voltage equalization between the electric energy storage cells by transferring the electric energy of a high voltage electric energy storage cells to a low voltage electric energy storage cell through at least one voltage equalization cell. The voltage equalization circuit according to the invention comprises: a serial string of plural electric energy storage cells connected in a serial; at least one string of voltage equalization cells which includes at least one voltage equalization cell; plural 1 | 08-25-2011 |
20110229753 | HIGH OUTPUT ELECTRICAL ENERGY STORAGE DEVICE - The present invention relates to an electric energy storage device such as a capacitor, a secondary battery, or the like, and more particularly, to an electric energy storage device capable of improving high output characteristics by using a voltage terminal. The electric energy storage device according to an exemplary embodiment of the present invention includes a positive electrode and a negative electrode storing electric energy and a positive current terminal and a negative current terminal connected to the positive electrode and the negative electrode to apply current; and a positive voltage terminal and a negative voltage terminal connected to the positive electrode and the negative electrode to detect voltage across the positive electrode and the negative electrode, wherein the charging or discharging operation is controlled by using the detected voltage across the positive electrode and the negative electrode as control voltage. | 09-22-2011 |
20120019075 | WIRELESS ENERGY TRANSFER APPARATUS AND METHOD FOR MANUFACTURING THE SAME - A wireless power transfer apparatus includes: a transmitting coil into which a current having a predetermined frequency is introduced; a receiving coil configured to supply a current induced by electromagnetic induction to a load; and a transmission-side resonant coil and a reception-side resonant coil positioned between the transmitting coil and the receiving coil, configured to provide the current flowing in the transmitting coil to the receiving coil through electromagnetic induction, and spaced a predetermined distance from each other. Each of the resonant coils has a spiral structure. | 01-26-2012 |
20120021261 | ELECTROCHEMICAL CELL WITH A GAS PERMEABLE MEMBRANE - The present invention provides a means for minimizing and improving the reliability and safety of the electrochemical cells such as batteries, capacitors, or the like. The present invention involves forming one or more holes in an electrochemical cell such that the holes are connected to the outside, and attaching a gas permeable membrane around the hole such that the bonded surface of the gas permeable membrane is surface-treated in order to improve bonding properties. Thus, gas generated by the electrochemical cell is discharged to the outside to prevent the internal pressure of the electrochemical cell from rising, thereby reducing the weight and volume of the electrochemical cell and improving the reliability and safety thereof. | 01-26-2012 |
20120089882 | PACKET COMBINING DEVICE AND METHOD FOR COMMUNICATION SYSTEM USING HYBRID AUTOMATIC REPEAT REQUEST - A packet combining device for a communication system using hybrid automatic repeat request (HARQ) includes: a HARQ buffer; a combiner configured to combine data which is previously received and stored in the HARQ buffer with newly-received data; and a channel decoder configured to attempt channel decoding by using the combined received data provided from the combiner and provide one or more of log likelihood ratios (LLRs) computed for a systematic bit and a parity bit of the combined received data to the combiner such that the one or more LLRs are combined with the data used for channel decoding. | 04-12-2012 |
20120098349 | WIRELESS POWER TRANSFER DEVICE - Provided is a wireless power transfer device. The wireless power transfer device includes: a base substrate including a base coil; transmission substrates spaced from the base substrate and including transmission coils; and a contact plug penetrating the base substrate and the transmission substrates to connect one ends of the transmission coils; wherein the transmission coils have the greater turn number than the base coil and transmitting/receiving a power signal through a magnetic resonance method. | 04-26-2012 |
20120133214 | DIRECT FEEDING APPARATUS FOR IMPEDANCE MATCHING OF WIRELESS POWER TRANSMISSION DEVICE, AND TRANSMITTER AND RECEIVER USING THE SAME - A direct feeding apparatus for impedance matching of a wireless power transmission device includes a helical type resonator, and a feeding unit configured to directly feed power to a region having a relatively small current value as compared to a center of a conductive line of the resonator. | 05-31-2012 |
20120142290 | APPARATUS AND METHOD FOR DETECTING EFFECTIVE RADIATED POWER - Provided is an apparatus and method for measuring effective radiated power. The apparatus includes a reference signal power measuring unit configured to measure power of a reference signal from a wireless signal transmitted from a wireless device, and an effective radiated power calculating unit configured to calculate effective radiated power according to an allocation ratio of a reference signal in an entire signal domain using the measured reference signal power from the reference signal power measuring unit. | 06-07-2012 |
20120157021 | APPARATUS AND METHOD FOR WIRELESSLY TRANSMITTING AND RECEIVING ENERGY AND DATA - Disclosed is an apparatus for wirelessly transmitting and receiving energy and data including: a signal generator generating a first frequency signal for power transmission; a first matching circuit matching input/output impedance upon receiving the first frequency signal generated by the signal generator; an oscillator outputting a second frequency signal, a carrier frequency, by using the first frequency signal, generated by the signal generator, as a reference frequency; a mixer modulating a data signal output from a communication module by using the second frequency signal; a second matching circuit matching input/output impedance upon receiving a modulated signal by using the second frequency signal; a resonator resonating an output signal from the first matching circuit to a reception side apparatus; and a radiator radiating an output signal from the second matching circuit to the reception side apparatus. | 06-21-2012 |
20120161540 | APPARATUS FOR TRANSMITTING/RECEIVING ENERGY IN ENERGY SYSTEM - Disclosed is an energy transmitting apparatus in an energy system, including: a transmit feeding cable configured to be applied with AC power; a transmit inductor in which AC current for an AP power supply flows; a transmit metal electrode configured to transmit the AC power to a receive metal electrode by the AC current flowing the transmit inductor; and a transmit grounding bar configured to control at least one of a position, a length, and a diameter thereof to control a resonance frequency generated by the transmit inductor. | 06-28-2012 |
20120161542 | METHOD AND SYSTEM FOR REDUCING RADIATION FIELD IN WIRELESS TRANSMISSION SYSTEM - A system for reducing a radiation field in a wireless power transmission system includes a signal generation unit, a power amplification unit, a signal detection unit, a standing wave ratio (SWR) calculation unit and a control unit. The signal generation unit receives power and generates a signal for wireless power transmission. The power amplification unit amplifies the wireless signal generated by the signal generation unit. The signal detection unit detects a radiation signal generated by the magnetic resonator with respect to output power of the power amplification unit. The SWR calculation unit calculates an SWR using the detected radiation signal. The control unit selects a frequency having a lowest SWR based on the SWR calculated by the SWR calculation unit, and controls the signal generation unit to generate the signal for the wireless power transmission using the selected frequency. | 06-28-2012 |
20120162031 | METHOD FOR PREDICTING PHASE PATTERN USING MAGNITUDE PATTERN IN NEAR-FIELD OR FRESNEL FIELD - Disclosed is a method for predicting a phase pattern using a magnitude pattern in near-field or Fresnel field formed by antenna radiation, including: determining a first parameter group including a first actual distance between a source antenna and a probe and the magnitude pattern at the first distance; assuming a second parameter group including a second distance that is an effective distance between the source antenna and the probe, a current magnitude distribution of the source antenna and a current phase distribution of the source antenna, based on the first parameter group; calculating the magnitude pattern at the first distance based on the second parameter group; and determining the phase pattern at the first distance when the magnitude pattern at the calculated first distance matches with the magnitude pattern at the first distance included in the first parameter group by the comparison therebetween. | 06-28-2012 |
20130088331 | APPARATUS AND METHOD FOR RECOGNIZING LOCATION OF OBJECT IN LOCATION RECOGNITION SYSTEM - Disclosed are an apparatus and a method for recognizing a location of an object using radio frequency Identification (RFID). The method for recognizing a location of an object includes: activating tags located around radio frequency identification (RFID) tags by transmitting power to the RFID tags in a magnetic resonance type; transmitting a call signal for identifying a mobile tag attached to an object; receiving a tag identifier of the mobile tag corresponding to the call signal; receiving location information from fixed tags around the mobile tag; and recognizing the location of the mobile tag using the location information. | 04-11-2013 |
20130221757 | WIRELESS POWER TRANSMISSION APPARATUS - A wireless power transmission apparatus includes: a transmission resonator installed in one side wall within a specific space and configured to comprise a transmission feeding loop for transmitting impedance matching and power and receive and transmit the impedance matching and power using the transmission feeding loop. Further, the wireless power transmission apparatus includes a relay resonator installed in another side wall within the specific space and configured to have a resonant frequency identical with that of the transmission resonator and store energy in the specific space by generating mutual resonance through a resonance characteristic with the transmission resonator; and one or more reception resonators installed within the specific space and configured to have a resonant frequency identical with that of the transmission resonator and receive the energy stored in the specific space. | 08-29-2013 |
20130229064 | APPARATUS FOR HARVESTING LEAKAGE ENERGY - Disclosed is an apparatus for harvesting leakage energy. The apparatus for harvesting leakage energy includes: an energy harvesting unit configured to harvest energy leaked while energy radiated from a transmitting unit of an energy transmitting apparatus is transmitted to a receiving unit of an energy receiving apparatus; and a harvesting circuit module configured to supply energy harvested by the energy harvesting unit to a load. In accordance with the embodiment of the present invention, energy efficiency of overall system can be increased by harvesting the leakage energy without affecting performance of a wireless power transmission system. | 09-05-2013 |
20130257174 | APPARATUS AND METHOD FOR WIRELESSLY TRANSMITTING AND RECEIVING ENERGY AND DATA - A method for wirelessly receiving energy and data, including: a resonation operation of resonating a first frequency power signal transmitted from a transmission apparatus; a reception operation of receiving a second frequency data signal transmitted from the transmission apparatus; a first matching operation of matching input/output impedance upon receiving the first frequency power signal; a rectification operation of rectifying impedance-matched power signal from the first matching operation into a DC current; a second matching operation of matching input/output impedance upon receiving the second frequency data signal; an oscillation operation of outputting a second frequency signal by using the first frequency signal output from the resonation operation, as a reference frequency; and a frequency mixing operation of mixing the impedance-matched data signal from the second matching operation with the signal output from the oscillation operation to restore a baseband data signal. | 10-03-2013 |
20130285462 | APPARATUS AND METHOD FOR TRANSMITTING WIRELESS ENERGY IN ENERGY TRANSMISSION SYSTEM - An apparatus for transmitting wireless energy in an energy transmission system includes a transmission resonator block configured to have a plurality of transmission resonators arranged therein, a transmission signal generation block configured to generate an energy signal, a switch block connected to the plurality of transmission resonators and configured to switch the energy signal to the plurality of transmission resonators in response to a switching control signal, and a control block configured to generate the switching control signal for switching the energy signal to a transmission resonator including a transmission region where a receiver is placed when detecting the receiver placed in the transmission regions of the plurality of transmission resonators. | 10-31-2013 |
20130320760 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING WIRELESS ENERGY IN ENERGY TRANSMISSION SYSTEM - Disclosed are an apparatus and a method for transmitting/receiving wireless energy in an energy transmission system. The apparatus includes: a transmitting controller configured to generate a wireless energy signal; a transmitting resonance body port configured to transmit the wireless energy signal; and a transmitting resonance body configured to transmit the wireless energy signal transmitted through the transmitting resonance body port to receiving apparatuses, wherein the transmitting controller transmits impedance control signals for controlling impedance of each of the receiving resonance body ports of the plurality of receiving apparatuses. | 12-05-2013 |
20140125433 | RESONANTOR STRUCTURE FOR WIRELESS POWER TRANSFER SYSTEM - A resonator structure for a wireless power transfer system Includes resonators, which are to transfer wireless power, and a dielectric substance, which includes at least one exposure region formed on the dielectric substance to fix the resonators in a covered shape and to selectively expose parts of the resonators. | 05-08-2014 |
20140152247 | BATTERY CHARGING METHOD AND SYSTEM USING WIRELESS POWER TRANSMISSION - Provided is a battery charging method using wireless power transmission, the method including: receiving a first message associated with a battery charge start from a reception apparatus; discovering an optimal frequency band for a transmit power signal to be transmitted to the reception apparatus based on the first message; receiving, from the reception apparatus, a second message that includes an extra power value and a charge power value, and is associated with a charge state of the reception apparatus; and adaptively controlling transmit power so that the extra power value is maintained to be constant in proportion to a relationship between the charge power value and a first parameter, based on the second message. | 06-05-2014 |
20140172658 | VOLUME-RATE FOOD-WASTE DISPOSAL APPARATUS AND CHARGING APPARATUS FOR USE WITH THE SAME - A volume-rate food-waste disposal apparatus recognizes a user who discharges food-waste into the food-waste disposal apparatus to produce source information and weights the food-waste to produce weight information. The food-waste disposal apparatus receives an electrical power in a wireless manner and dries the food-waste using magnetic waves. The food-waste disposal apparatus transmits the source information and the source information to a charging server so that an on-line food-waste disposal fee per source is billed on a basis of a prefixed food-waste disposal fee per weight. | 06-19-2014 |
20140191728 | HIGH OUTPUT ELECTRICAL ENERGY STORAGE DEVICE - The present invention relates to an electric energy storage device such as a capacitor, a secondary battery, or the like, and more particularly, to an electric energy storage device capable of improving high output characteristics by using a voltage terminal The electric energy storage device according to an exemplary embodiment of the present invention includes a positive electrode and a negative electrode storing electric energy and a positive current terminal and a negative current terminal connected to the positive electrode and the negative electrode to apply current; and a positive voltage terminal and a negative voltage terminal connected to the positive electrode and the negative electrode to detect voltage across the positive electrode and the negative electrode, wherein the charging or discharging operation is controlled by using the detected voltage across the positive electrode and the negative electrode as control voltage. | 07-10-2014 |
20140203655 | APPARATUS FOR TRANSMITTING MAGNETIC RESONANCE WIRELESS POWER USING HIGHER ORDER MODE RESONANCE, RECEIVING TERMINAL, AND METHOD FOR TRANSMITTING AND RECEIVING WIRELESS POWER USING THE SAME - A method includes matching a basic mode frequency signal and a higher order mode frequency signal to a multi-band frequency signal with respect to a signal in the form of the square wave, transferring the matched basic mode frequency signal and higher order mode frequency signal simultaneously to a multi-resonance reception resonator, converting output impedance of the basic mode frequency and the higher order mode frequency which are received through the reception resonator into a conjugate value of input impedance of the basic mode frequency and the higher order mode frequency of a receiver, and converting the converted multi-band frequency signal into an electric power that is required in a load and transferring the electric power to the load. | 07-24-2014 |
20140258814 | METHOD OF TRANSFERRING EXTRINSIC INFORMATION OF TURBO DECODER AND APPARATUS USING THE SAME - Disclosed herein is a method and apparatus for transferring extrinsic information of a turbo decoder. In the method of transferring the extrinsic information of the turbo decoder according to the present invention, Log-Likelihood Ratio (LLR) values for input bits of the turbo decoder are calculated. The LLR values are transferred as extrinsic information values. | 09-11-2014 |
20140361629 | ANTENNA FOR HARVESTING RF ENERGY - An antenna for harvesting RF energy includes a radiator; and a ground plane onto which the radiator is supported. Further, the antenna includes a vertical ground plane that is formed on the ground plane in a direction parallel to the radiator at a location spaced by a predetermined distance from the radiator. | 12-11-2014 |