Patent application number | Description | Published |
20110074344 | WIRELESS CHARGER USING INDUCTIVE COUPLING - A wireless charger of an inductive coupling type for charging a portable device provided with a rechargeable built-in battery having a second coil, includes a housing provided with a touch pad on one surface; a first coil retained within the housing; and a driving means for horizontally moving the first coil in a plane parallel to the one surface on which the touch pad is installed, wherein when the portable device is placed on the touch pad, the touch pad senses the position of the portable device to activate the driving means and displaces the first coil to a position facing the second coil. | 03-31-2011 |
20130119780 | WIRELESS POWER RECEIVER AND CONTROL METHOD OF SAME - A wireless power receiver is provided that includes a communication unit for receiving wireless power and a communication signal from a wireless power supplier; a controller for determining whether the wireless power is received from the wireless power supplier; a loader for storing the wireless power; and a switching unit for, when the wireless power is received, dividing the wireless power and the communication signal by a predetermined ratio and transferring the divided power to the controller and the loader based on the predetermined ratio. | 05-16-2013 |
20130169223 | ELECTRONIC DEVICE FOR REDUCING INTERFERENCE BETWEEN A CHARGING COIL AND AN ANTENNA - An electronic device is provided. The electronic device includes a main body including a battery pack and a battery cover; a non-contact near field communication antenna included in the battery pack; and a wireless charging coil portion included in the battery cover and disposed around an outer periphery of the antenna, such that the wireless coil portion does not overlap with the non-contact near field communication antenna. | 07-04-2013 |
20130264997 | WIRELESS CHARGING APPARATUS AND METHOD - A wireless charging method and apparatus are provided. A non-contact wireless local communication unit performs non-contact wireless local communication for wireless charging authentication through a non-contact wireless local communication antenna. A wireless power receiver receives supply power from a wireless power transmitter by using a resonator resonating on a resonance frequency equal to that of the wireless power transmitter after the wireless charging authentication. A charging controller performs wireless charging by using the supply power received by the wireless power receiver. One or more switches switch between a connection between the non-contact wireless local communication antenna and the non-contact wireless local communication unit, and a connection between the wireless power receiver and the charging controller. | 10-10-2013 |
20130293027 | RESONANCE TERMINAL DEVICE FOR RESONANT WIRELESS POWER RECEPTION SYSTEM - A shunt capacitor is connected to a wireless charging resonator to prevent harmonics emitted from a power amplifier from radiating to the outside, and at least one circuit having a high impedance relative to a Near Field Wireless Communication (NFC) frequency band is formed at a front side or a rear side of the shunt capacitor for solving the problems of radiating noise components due to wireless charging and of lowering an NFC signal and a power transmission intensity due to a concurrent interference between a wireless charging resonator and an NFC antenna. | 11-07-2013 |
20140159654 | METHOD AND APPARATUS FOR PROTECTING WIRELESS POWER RECEIVER FROM EXCESSIVE CHARGING TEMPERATURE - An apparatus and a method for protecting a wireless power receiver from excessive temperature caused by charging are provided. The wireless power receiver includes a power receiver for receiving wireless power in an Alternate Current (AC) form from a wireless power transmitter; a regulator for regulating the wireless power; a power management unit for controlling charging by providing the regulated wireless power to a battery; a temperature measurement unit for measuring a temperature of a point in the wireless power receiver during reception of the wireless power; and a controller configured to provide a control signal for the wireless power receiver to be charged with a regulated charging power if a temperature measured by the temperature measurement unit exceeds a preset temperature. | 06-12-2014 |
20140159673 | WIRELESS CHARGING APPARATUS AND METHOD - A wireless charging method includes receiving information on a required amount of power from a second wireless power receiver while supplying power to one or more first wireless power receivers; calculating required power for all wireless power receivers including the one or more first wireless power receivers and the second wireless power receiver; and when a maximum amount of providable power is not larger than the required amount of power for all wireless power receivers, transmitting insufficient power amount information to each of the wireless power receivers. | 06-12-2014 |
Patent application number | Description | Published |
20100156749 | ANTENNA DEVICE AND METHOD OF MANUFACTURING THE SAME - A signal transmitting/receiving antenna device for Radio Frequency Identification (RFID) which executes contactless data communication, and a method of manufacturing the same. The antenna device includes an antenna module including a dielectric film substrate, an antenna pattern which is a conductive pattern printed on the top and bottom sides of the dielectric film substrate, the top and bottom antenna pattern parts being Connected to each other through one or more via holes extending through the dielectric film substrate, and top and bottom passivation layers formed on the dielectric film substrate to cover the top and bottom antenna pattern parts; and a radio wave absorbent printed on one of the top and bottom passivation layers of the antenna module. | 06-24-2010 |
20100259453 | INTERNAL ANTENNA AND PORTABLE COMMUNICATION TERMINAL USING THE SAME - An internal antenna is provided that includes a first antenna having a first antenna pattern formed on a first dielectric layer, and a second antenna having a second antenna pattern formed on a second dielectric layer. The second dielectric layer has a higher dielectric constant than the first dielectric layer. The first and second antenna patterns are electrically connected to each other. | 10-14-2010 |
20110062914 | SYSTEM AND METHOD FOR EFFICIENT WIRELESS CHARGING OF A MOBILE TERMINAL - Disclosed is a method and apparatus for efficient wireless charging of a mobile terminal. The method includes detecting the mobile terminal by a charging apparatus, receiving a unique identifier of the mobile terminal from the mobile terminal and determining if the mobile terminal is a rechargeable device, when the mobile terminal is a rechargeable device, applying a direct voltage to a first coil of the charging apparatus and arranging the charging apparatus and the mobile terminal, and terminating an application of the direct voltage and then applying an alternating voltage, to supply charging power required for the mobile terminal. | 03-17-2011 |
20110115433 | WIRELESS CHARGER FOR CHARGING CONTROL AND CHARGING CONTROL METHOD THEREFOR - A coil structure and a charging control method in a wireless charger having a primary coil are provided to supply an induced electromotive force suitable for a charging target having a secondary coil. Concentric coils having different radii are arranged in a wireless charger, and a coil suitable for the location of a charging target placed on the wireless charger is selected. An input power corresponding to the selected coil is determined, and the determined power is applied to the selected coil. Then the same charging efficiency can be provided irrespective of a location of a charging target placed on the wireless charger. | 05-19-2011 |
20110198938 | WIRELESS POWER TRANSMISSION AND RECEPTION APPARATUS HAVING RESONANCE FREQUENCY STABILIZATION CIRCUIT AND METHOD THEREOF - A wireless power transmission apparatus and method for wirelessly transmitting power to a wireless power reception apparatus electromagnetically coupled to the wireless power reception apparatus and supplying power for loads of the wireless power reception apparatus is provided. The apparatus includes a power generator for generating power having a fixed oscillation frequency; a power transmission resonator, which has a resonance frequency identical to the oscillation frequency, for wirelessly transmitting the power generated by the power generator to the wireless power reception apparatus; and a power transmission resonance frequency controller for controlling the resonance frequency of the power transmission resonator in response to a change of the resonance frequency of the power transmission resonator. | 08-18-2011 |
Patent application number | Description | Published |
20090220230 | Passive Optical Network Based On Reflective Semiconductor Optical Amplifier - Provided is a passive optical network (PON) based on a reflective semiconductor optical amplifier (RSOA). In the PON, seed-light-injection RSOAs are used in an optical line terminal (OLT) to achieve the color-less management of the wavelengths of OLT optic sources, and wavelength reuse RSOAs are used to achieve the color-less management of the wavelengths of ONTs. Therefore, problems related to ONT wavelength management can be eliminated by the wavelength reuse RSOAs, and problems related to OLT wavelength management can be eliminated by the seed-light-injection RSOAs. | 09-03-2009 |
20100014545 | ATHERMAL EXTERNAL CAVITY LASER - Provided is an athermal external cavity laser (ECL), whose output optical power and output wavelength can be kept regular irrespective of temperature changes without using additional temperature controlling components. The ECL comprises: a semiconductor amplifier; an optical fiber comprising a core in which a Bragg grating is formed and a cladding surrounding the core; and a thermosetting polymer that fixes the optical fiber to a ferrule and has a negative thermooptical coefficient, wherein the thickness of the cladding surrounding the core in which the Bragg grating is formed is smaller than the portion of the cladding surrounding the portion of the core where the Bragg grating is not formed, and the thermosetting polymer the negative thermooptical coefficient surrounds the cladding. The ECL does not need additional temperature controlling components and thus can be manufactured compact and at low cost, and thus can be used as a light source of a dense wavelength division multiplexing (DWDM) system in designing economical WDM passive optical networks (PON). | 01-21-2010 |
20100209108 | REFLECTIVE SEMICONDUCTOR OPTICAL AMPLIFIER (RSOA), RSOA MODULE HAVING THE SAME, AND PASSIVE OPTICAL NETWORK USING THE SAME - A Reflective Semiconductor Optical Amplifier (RSOA) for compensating for light loss in an optical link, an RSOA module for improving polarization dependency using the RSOA, and a Passive Optical Network (PON) for increasing economical efficiency and practical use of a bandwidth using the RSOA are provided. The PON includes a central office comprising a plurality of optic sources transmitting a downstream signal and a plurality of first receivers receiving an upstream signal; at least one optical network terminal (ONT) including a second receiver receiving the downstream signal and an RSOA which receives the downstream signal, remodulates the downstream signal into the upstream signal, and transmits the upstream signal in loopback mode; and a remote node interfacing the central office with the ONT. The upstream signal and the downstream signal are transmitted between the remote node and the ONT via a single optical fiber. The remote node includes an optical power splitter at its port connected to the ONT. | 08-19-2010 |
20100214651 | REFLECTIVE SEMICONDUCTOR OPTICAL AMPLIFIER (RSOA), RSOA MODULE HAVING THE SAME, AND PASSIVE OPTICAL NETWORK USING THE SAME - A Reflective Semiconductor Optical Amplifier (RSOA) for compensating for light loss in an optical link, an RSOA module for improving polarization dependency using the RSOA, and a Passive Optical Network (PON) for increasing economical efficiency and practical use of a bandwidth using the RSOA are provided. The PON includes a central office comprising a plurality of optic sources transmitting a downstream signal and a plurality of first receivers receiving an upstream signal; at least one optical network terminal (ONT) including a second receiver receiving the downstream signal and an RSOA which receives the downstream signal, remodulates the downstream signal into the upstream signal, and transmits the upstream signal in loopback mode; and a remote node interfacing the central office with the ONT. The upstream signal and the downstream signal are transmitted between the remote node and the ONT via a single optical fiber. The remote node includes an optical power splitter at its port connected to the ONT. | 08-26-2010 |
20110026923 | APPARATUS AND METHOD FOR OLT AND ONU FOR WAVELENGTH AGNOSTIC WAVELENGTH-DIVISION MULTIPLEXED PASSIVE OPTICAL NETWORKS - In a Wavelength-Division-Multiplexed Passive Optical Network (WDM-PON) utilizing a conventional downstream optical signal reusing method, there is an inventory problem that different optical transmitter types need to be provided for the operation, management, replacement, etc. of a system. A WDM-PON system according to the present invention, includes: a seed light (SL) unit generating a seed light whose wavelength intervals and center wavelengths are adjusted using at least one seed light source; an optical line terminal (OLT) receiving the wavelength-multiplexed seed light from the seed light unit, transmitting a downstream optical signal to a subscriber of the WDM-PON, and receiving a upstream optical signal from the subscriber; and an optical network unit (ONU) receiving the downstream optical signal from the OLT, flattening and modulating the downstream optical signal with upstream data so that the downstream optical signal is reused for carrying upstream data. It is possible to improve the quality and reliability of downstream transmission by sufficiently increasing an extinction ratio, and improve the quality and reliability of upstream transmission by sufficiently flattening an input downstream optical signal in a semiconductor optical amplifier. | 02-03-2011 |
Patent application number | Description | Published |
20080245184 | Preparation method of metal nano particle using micro mixer - Disclosed is a method for preparing metal nanoparticles, the method comprising the steps of: providing a solution of metal salt and a solution of a strong reducing agent with a standard reduction potential of −0.23V or lower; and mixing the solutions by using a micro mixer without supplying additional heat energy from the exterior, while carrying out reduction of the metal. Metal nanoparticles obtained by the above method, and a micro mixer for preparing the metal nanoparticles are also disclosed. The method for preparing metal nanoparticles via the reduction of metal ions in a solution uses a strong reducing agent and a micro mixer. Therefore, it is possible to obtain metal nanoparticles having a particle size of 20 nm or more and a uniform shape and dimension without supplying additional heat energy from the exterior. Additionally, the method is amenable to a continuous process, and thus ensures cost-efficiency and stable product quality required for mass production. | 10-09-2008 |
20100108366 | PREPARATION METHOD FOR AN ELECTROCONDUCTIVE PATTERNED COPPER LAYER AND A PATTERNED COPPER LAYER FORMED BY THE METHOD - A method for preparing an electroconductive patterned copper layer, comprising mixing copper-based particles with a reducing agent, and then adding a solvent thereto to prepare a reducing agent-containing copper-based particle dispersion solution; printing on or filling in the reducing agent-containing copper-based particle dispersion solution a substrate in a predetermined shape to form a reducing agent-containing copper-based particle patterned layer; and firing the reducing agent-containing copper-based particle patterned layer in the air, which allows forming a patterned copper layer with excellent electric conductivity even in the air, thereby being industrially very useful. | 05-06-2010 |
20100116089 | PREPARATION METHOD OF COPPER PARTICLE COMPOSITION - A preparation method of a copper particle composition includes dissolving a copper carboxyl compound, or a carboxyl group-containing compound and a copper salt, in a solvent to prepare a copper(II) precursor solution; putting a weak reducing agent with a standard reduction potential of −0.2 to −0.05V to the prepared copper(II) precursor solution to assemble a plurality of Cu | 05-13-2010 |
20100119828 | SPHERICAL ASSEMBLY PARTICLE COMPOSITION OF CUPROUS OXIDE AND PREPARATION METHOD THEREOF | 05-13-2010 |
20100129566 | PREPARATION METHOD OF ELECTROCONDUCTIVE COPPER PATTERNING LAYER BY LASER IRRADIATION - A preparation method of an electroconductive copper patterning layer includes (Step 1) preparing a dispersion solution of copper-based particles selected from the group consisting of copper particles, copper oxide particles, and their mixtures; (Step 2) forming a copper-based particle patterning layer by printing or filling the dispersion solution of copper-based particles to a substrate into a predetermined shape; and (Step 3) irradiating laser to the copper-based particle patterning layer to burn and interconnect the copper-based particles contained in the copper-based particle patterning layer. This preparation method burns a copper-based particle patterning layer with a strong energy within a short time by using laser. Thus, it is possible to obtain a copper patterning layer that is hardly oxidized even in the atmosphere, so a copper patterning layer with excellent electric conductivity is formed. | 05-27-2010 |
Patent application number | Description | Published |
20120094590 | VENTILATION SYSTEM - The present invention relates to a ventilation system. According to a ventilation system of an embodiment of the present invention, it is possible to supply constant air flow to each floor or home, regardless of changes in environment outside a building, by connecting a ventilator to a center duct that sucks external air and supplies it to each floor or home, or sucks internal air of each floor of home and discharges it to the outside the building. | 04-19-2012 |
20120308833 | ADHESIVE COMPOSITION FOR GLASS BONDING, GLASS ASSEMBLY AND DISPLAY USING THE SAME - Disclosed are an adhesive composition for glass bonding, a glass assembly and a display using the adhesive composition. The adhesive composition includes a urethane-acryl copolymer, a monomer mixture of an acrylic monomer having no hydroxyl group and a monomer having a hydroxyl group, an isocyanate cross-linking agent, and a photo-polymerization initiator. The adhesive composition has advantages of: favorable scattering prevention of broken glass pieces, excellent heat-resistant durability enabling prevention of damage to an image display apparatus caused by temperature change, no adverse effect upon transmittance of the image display apparatus, hence ensuring desired visibility. | 12-06-2012 |
Patent application number | Description | Published |
20120293010 | METHOD AND APPARATUS FOR CONTROLLING WIRELESS POWER TRANSMISSION - A wireless power transmission controlling apparatus and method are provided. The apparatus includes a power amplifier that receives a source power, amplifies the received source power, and outputs a wireless power transmission signal from the amplified received source power, a band pass filter that filters the wireless power transmission signal, and passes a harmonic wave corresponding to a communication frequency band, and a communication unit that transmits a wireless power transmission control signal using the harmonic wave corresponding to the communication frequency band. | 11-22-2012 |
20130015813 | WIRELESS POWER RECEIVERAANM KIM; Joon-IlAACI SeoulAACO KRAAGP KIM; Joon-Il Seoul KRAANM Park; Sung-BumAACI Suwon-siAACO KRAAGP Park; Sung-Bum Suwon-si KRAANM Park; Se-HoAACI Suwon-siAACO KRAAGP Park; Se-Ho Suwon-si KRAANM Lee; Young-MinAACI Yongin-siAACO KRAAGP Lee; Young-Min Yongin-si KRAANM Lee; Woo-RamAACI Hwaseong-siAACO KRAAGP Lee; Woo-Ram Hwaseong-si KR - A wireless power receiver is provided for wirelessly receiving driving power from a wireless power transmitter. The wireless power receiver includes a power reception unit for wirelessly receiving the driving power from the wireless power transmitter. The wireless power receiver also includes a rectifier for rectifying the driving power output from the power reception unit into an Alternating Current (AC) power type. The wireless power receiver additionally includes a load unit for storing the rectified driving power output from the rectifier. The wireless power receiver further includes a controller for detecting an amount of the rectified driving power stored in the load unit to control output from the rectifier to the load unit. The wireless power receiver also includes an impedance adjuster for adjusting an impedance in the power reception unit according to the amount of the rectified driving power stored in the load unit. | 01-17-2013 |
20130057079 | APPARATUS AND METHOD OF CONTROLLING WIRELESS POWER TRANSMISSION - An apparatus for controlling wireless power transmission includes a near-field wireless communication antenna for receiving wireless power transmission control signals from a power transmitting device at a communication frequency, a near-field wireless communication Integrated Circuit (IC) for delivering wireless power transmission control messages based on the wireless power transmission control signals received through the near-field wireless communication antenna to a power IC, a Wireless Power Transmission (WPT) coil for resonating at a frequency band corresponding to a resonant frequency of the power transmitting device, to receive power supplied from the power transmitting device, and the power IC for controlling output of a constant voltage, using the supply power received by the WPT coil, based on the wireless power transmission control messages from the near-field wireless communication IC. | 03-07-2013 |
Patent application number | Description | Published |
20140365118 | Direction List - A mobile device that displays a list of traveling maneuvers or driving directions according to a route from a start location to a destination location is provided. The displayed list of driving directions includes a series of graphical items that each corresponds to a maneuver in the route. The displayed list of driving directions is updated dynamically according to the current position of the mobile device. Each maneuver actually taken or traveled causes the mobile device to display the item that corresponds to the taken maneuver differently. After a number of maneuvers have been taken, the graphical items that correspond to the taken maneuvers are removed from display and new maneuvers are brought into view. | 12-11-2014 |
20140365934 | Mapping Application with Interactive Dynamic Scale and Smart Zoom - Some embodiments provide a mapping application that includes a novel dynamic scale that can be used to perform different zoom operations. In some embodiments, the scale also serves as a distance measurement indicator for a corresponding zoom level. The application continuously adjusts several different attributes of the scale, including the scale size, the number of segments on the scale and the representative distance of a segment on the scale. In some embodiments, the mapping application provides a smart zoom feature that guides a user during a zoom to a location. In particular, the smart zoom detects that a location of a zoom is near a pin on the map, and if so, zooms to the pin on the map. Otherwise, if the location is near a cloud of pins, the application zooms to the cloud of pins. Otherwise the zoom is directed towards the user's selected location. | 12-11-2014 |
20140365944 | Location-Based Application Recommendations - A method to share map information between an electronic device and other nearby devices using peer-to-peer communication is provided. The method receives identification of different map items such as a route, points of interest, search results, a current map view and sends to a selected nearby device. The method provides different options to select the map items to share. The particular map information to share in some embodiments depends on what is currently displayed and/or selected on the map. When there are several items that can be shared and there is not a clear indication for what the user intends to share, an action list is shown to allow the user to select the information to share. Once a map item to share is selected, the method displays a share list to display a list of nearby devices. The method sends the shared information to selected devices. | 12-11-2014 |