Patent application number | Description | Published |
20100030007 | METHOD FOR THE REMOVAL OF ACETYLENES FROM OLEFINS USING IONIC LIQUID-BASED SOLUTION - The present invention relates to a process for removing acetylenes from olefins by using an ionic liquid-based solution, and particularly to a process for removing a small amount of acetylenes contained in olefins by using an ionic liquid-based solution where copper halide (CuX, X=halogen atom) is dissolved. In an ionic liquid-based solution used in the present invention, copper halide (CuX) is stabilized by ionic liquid, thus preventing monovalent copper ion (Cu | 02-04-2010 |
20110092758 | Method of Purifying Olefins Using Pyrrolidinium-Based or Piperidinium-Based Ionic Liquids Comprising Copper (I) Halide - The present invention relates to a method of purifying olefin, the method comprising removing a small amount of acetylenic compounds contained in olefin by using pyrrolidinium-based or piperidinium-based ionic liquid mixtures comprising copper (I) halide. According to the method of the present invention, copper (I) halide is stabilized by pyrrolidinium-based or piperidinium-based ionic liquids, suppressing the oxidation of Cu(I) into Cu(II), whereby the capacity of removing acetylenic compounds can be maintained for a long time and the selective removal rate of acetylenic compounds to olefin can be significantly improved. In addition, since the ionic liquid mixtures comprising copper (I) halide used in the method of the present invention can be applied to both absorption and extraction processes, it can effectively remove acetylenic compounds from olefin in a more simple and economical way compared to the existing adsorption and membrane separation processes. | 04-21-2011 |
20110299590 | ERROR RESILIENT CODING METHOD USING ADAPTIVE ADDITIONAL IMAGE INFORMATION - An error resilient coding method using adaptive additional image information is provided comprising determining a priority order of header data, adaptively configuring additional image information according to the priority order, and coding the additional image information and adding the coded additional image information to original image information. | 12-08-2011 |
20120083642 | IONIC LIQUIDS, THE METHOD FOR PREPARING THE SAME AND METHOD FOR REMOVING ACETYLENES FROM OLEFIN MIXTURES USING THE IONIC LIQUIDS - There are provided an ionic liquid having ether group(s) in which a copper(I) compound is included, a method for preparing the same, and a method for removing traces amounts of acetylene-based hydrocarbon compounds included in olefin by absorption or extraction using the same. When the disclosed solution is used, oxidation of Cu(I) to Cu(II) is prevented since CuX is stabilized by the ionic liquid. Thus, selective removal efficiency of acetylenic compounds is improved greatly while the removal performance is retained for a long period of time. Further, since the solution according to the present disclosure is applicable as an extractant as well as an absorbent, the associated operation is simple and apparatus cost can be decreased. | 04-05-2012 |
20140296523 | Ionic Liquids, The Method For Preparing The Same And Method For Removing Acetylenes From Olefin Mixtures Using The Ionic Liquids - There are provided an ionic liquid having ether group(s) in which a copper(I) compound is included, a method for preparing the same, and a method for removing traces amounts of acetylene-based hydrocarbon compounds included in olefin by absorption or extraction using the same. When the disclosed solution is used, oxidation of Cu(I) to Cu(II) is prevented since CuX is stabilized by the ionic liquid. Thus, selective removal efficiency of acetylenic compounds is improved greatly while the removal performance is retained for a long period of time. Further, since the solution according to the present disclosure is applicable as an extractant as well as an absorbent, the associated operation is simple and apparatus cost can be decreased. | 10-02-2014 |
Patent application number | Description | Published |
20090297754 | Metal mosaic tile - Disclosed herein is a metal mosaic tile used as the interior finishing material on the wall of a building. The tile includes a metallic board and a metallic cover. Convex parts are provided on the front of the metallic board at regular intervals and concave parts are provided on the back of the metallic board at regular intervals. The metallic cover includes a bent side plate, a top plate and an opening for accommodating at least one of the convex parts of the metallic board, and the upper surface of each convex part adheres to the top plate. The tile has high fire resistance, effectively prevents condensation from occurring, mitigates vibration or noise, has high joining strength and high attaching strength against an object to which the tile is attached, and permits the mass production of metal mosaic tile at lower cost. | 12-03-2009 |
20120088049 | DECORATIVE STAINLESS STEEL ROLLED SHEET WITH EMBOSSED PATTERN AND METHOD OF MANUFACTURING THE SAME - Disclosed is a decorative stainless steel rolled sheet having an embossed pattern, suitable for use as a surface finish or an interior surface finish of products, wherein a thin stainless steel sheet subjected to surface treatment including nanoceramic coating or PVD ionic coating resulting in various colors and a release sheet alone or with a nonwoven fabric layer bonded thereto by means of a hot melt adhesive layer are embossed together and bonded to each other with the embossed pattern, thus exhibiting superior bonding strength, heat resistance, fire resistance, scratch resistance, shape stability, flexibility and wrinkling resistance, thereby satisfying physical chemical properties required of a decorative sheet, and having an aesthetic appearance, constructability, and economic efficiency. A method of manufacturing such a decorative stainless steel rolled sheet is also provided, in which the rolled sheet can be mass produced at low cost and uniform quality using a continuous process. | 04-12-2012 |
20130276965 | Decorative stainless steel rolled sheet with embossed patterns and method of manufacturing the same - A decorative stainless steel rolled sheet has an embossed pattern, suitable for use as a surface finish or an interior surface finish of products, wherein a thin stainless steel sheet subjected to surface treatment including nanoceramic coating or PVD ionic coating resulting in various colors and a release sheet alone or with a nonwoven fabric layer bonded thereto by means of a hot melt adhesive layer are embossed together and bonded to each other with the embossed pattern, thus exhibiting superior bonding strength, heat resistance, fire resistance, scratch resistance, shape stability, flexibility and wrinkling resistance. In the method of manufacturing such a decorative stainless steel rolled sheet, the rolled sheet can be mass produced at uniform quality using a continuous process. | 10-24-2013 |
Patent application number | Description | Published |
20150110045 | COMMUNICATION DEVICE AND METHOD OF ALLOCATING PARTIAL BAND TO AVOID INTERFERENCE IN PARTIAL BAND - Provided is a communication device and a method of allocating a partial band to avoid interference in the partial band, wherein the method includes extracting at least one partial band in which interference occurs from a plurality of partial bands constituting an operating channel of a user terminal, determining an available partial band aside from the extracted partial band, and allocating the determined partial band to the user terminal. | 04-23-2015 |
20150139031 | METHOD FOR DISCOVERING NEIGHBOR NODE IN WIRELESS LOCAL AREA NETWORK - Disclosed is a discovery method of neighbor node in a wireless local area network (LAN). The discovery method includes performing a scanning procedure, performing an authentication procedure with a first terminal detected through the scanning procedure, performing an association procedure with the first terminal in which the authentication procedure has been performed, acquiring, from the first terminal, a scanning result of a scanning procedure having been performed in the first terminal, and generating a first AP list based on a scanning result of a scanning procedure having been performed in the first AP and the scanning result of the scanning procedure having been performed in the first terminal Therefore, interference problems between neighbor access points (APs) may be solve. | 05-21-2015 |
20150139127 | METHOD OF ALIGNING INTERFERENCE IN WIRELESS LOCAL AREA NETWORK - There is provided a method of aligning interference in a wireless local area network. A method of receiving a frame includes receiving a first frame from a first access point associated with a terminal, comparing a signal level of the first frame with a preset data rate, performing a pre-procedure for interference alignment when the signal level of the first frame is less than the preset data rate, receiving a second frame from the first access point, and aligning interference of the second frame based on information obtained through the pre-procedure. According to the present invention, it is possible to control interference in an overlapping band. | 05-21-2015 |
20150139201 | METHOD FOR TRANSMITTING AND RECEIVING FRAME IN WIRELESS LOCAL AREA NETWORK SYSTEM AND APPARATUS FOR THE SAME - Disclosed are a method for transmitting and receiving a frame in a wireless local area network (WLAN) system and an apparatus for the same. A method for generating interference/non-interference station lists includes receiving a first frame from a second station, acquiring a receiver address of the first frame from the first frame, and setting, based on whether to receive a second frame that is a response to the first frame from a third station indicated by the receiver address within a preset time from a time when the first frame has been received, the third station as an interference station or a non-interference station. Therefore, the performance of a communication system may be improved. | 05-21-2015 |
20150181456 | FRAME TRANSMISSION METHOD AND APPARATUS FOR CONTROLLING ONE-WAY DELAY - Provided is a frame transmission method and apparatus for controlling a one-way delay, the apparatus determining channel access delay between a reaching time at which at pre previous transmission frame reaches a head of a transmission queue and a transmission time at which the previous transmission frame it actually transmitted, and transmitting a current frame in a transmission mode determined by estimating a probability related to the transmission mode based on the channel access delay. | 06-25-2015 |
20150181561 | FRAME TRANSMISSION METHOD PERFORMED IN ACCESS POINT, FRAME RECEPTION METHOD PERFORMED IN TERMINAL, AND ACCESS POINT - Provided are a frame transmission method performed in an access point (AP), a frame reception method performed in a terminal, and an AP. The frame transmission method performed in an AP includes acquiring a channel for transmitting a first data unit of a first terminal, when a data unit to be transmitted to at least one terminal other than the first terminal is in the AP, generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including the first data unit and the data unit to be transmitted to the at least one terminal, and transmitting the PPDU to the first terminal and the at least one terminal. Accordingly, it is possible to improve the performance of a wireless local area network (WLAN). | 06-25-2015 |
20150245359 | METHOD AND APPARATUS OF SELECTING TRANSMISSION RATE IN WIRELESS TRANSMISSION SYSTEM - A method and apparatus of selecting a transmission rate in a wireless transmission system are provided. The method of selecting a transmission rate by a transmission rate selecting apparatus may comprise assigning a weight to each of criteria for selecting a transmission rate per service class, calculating a score for each transmission rate per service class using statistics information collected for a plurality of transmission rates based on the weight-assigned criteria, and selecting a transmission rate for a service class based on the calculated score. | 08-27-2015 |
20150341847 | METHOD FOR AVOIDING INTERFERENCE IN WIRELESS LOCAL AREA NETWORK SYSTEM AND APPARATUS FOR PERFORMING THE SAME - Disclosed are a method for avoiding interference in a wireless local area network system and an apparatus for performing the same. The method for avoiding interference by an access point in a wireless local area network system, includes receiving channel scan results from a station associated with the access point; setting connection with an adjacent access point based on the channel scan results; determining an access point to be associated with the station through negotiation with the adjacent access point; and transmitting a reassociation request message to request reassociation with the adjacent access point to the station when the negotiation with the adjacent access point succeeds. | 11-26-2015 |
20150373717 | FRAME TRANSMISSION SYSTEM AND METHOD OF INTERFERENCE ALIGNMENT AND CONTROLLING IN MULTI-CELL RANDOM ACCESS NETWORK - Provided is a frame transmission method of interference alignment (IA) and controlling, the method including calculating a channel matrix of a basic service set (BSS) by measuring channel information between an access point and a user terminal, performing singular value decomposition (SVD) based on the calculated channel matrix, selecting a beamforming vector in consideration of an interference amount associated with another access point based on the SVD performed by the channel matrix, and calculating a leakage interference (LIF) value based on the selected beamforming vector. | 12-24-2015 |
Patent application number | Description | Published |
20100104099 | IMAGE FORMING APPARATUS AND SECURITY SETTING METHOD THEREOF - An image forming apparatus and a security setting method thereof, the method including: inputting an encryption key of a wireless network connection of the image forming apparatus; displaying a selection screen including one or more functions which the image forming apparatus provides; and selecting at least one of the displayed functions with which to share the encryption key as a password. | 04-29-2010 |
20110122434 | IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING WIRELESS NETWORK CONNECTION IN THE APPARATUS - An image forming apparatus in which connection of an external device and a wireless network is controlled, the image forming apparatus including: a wireless network interface unit to connect the image forming apparatus to a first wireless network or a second wireless network; a user interface unit in which setting a connection configuration to connect the image forming apparatus to the second wireless network according to a request to connect to the second wireless network is performed while the image forming apparatus is connected to the first wireless network; a determining unit to determine whether connection of the second wireless network is terminated after connection of the first wireless network is terminated and the image forming apparatus is connected to the second wireless network according to the set connection configuration; and a controller, as a result of the determining, if connection of the second wireless network is terminated, to control so that the image forming apparatus is connected to a different wireless network from the second wireless network according to the set connection configuration. | 05-26-2011 |
20120044522 | IMAGE FORMING APPARATUS AND METHOD FOR SETTING WIRELESS LAN THEREOF - A method and apparatus for setting up a wireless LAN. The method includes receiving a packet, which informs a user that a WPS (Wi-Fi Protected Setup) button of an access point is operated, from the access point; activating a button provided in an image forming apparatus as a WPS button; selecting a button activated as the WPS button; and if the button activated as the WPS button is selected, establishing a wireless network with the access point. | 02-23-2012 |
20130057898 | IMAGE FORMING APPARATUS SUPPORTING PEER-TO-PEER CONNECTION AND METHOD OF MANAGING SECURITY BASED ON SIGNAL INTENSITY THEREOF - A method of managing security of an image forming apparatus that supports a P2P connection based on a signal intensity includes: measuring an intensity of a signal transmitted from an external wireless device by the image forming apparatus; and controlling an access of the wireless device by the image forming apparatus based on the measured signal intensity. | 03-07-2013 |
20130088749 | METHOD AND APPARATUS TO CONTROL LINK SPEED OF AN IMAGE FORMING APPARATUS - A method of controlling a link speed in an image forming apparatus to reduce power consumption of the image forming apparatus by changing the link speed of the image forming apparatus, the method including establishing a link between the image forming apparatus and an external device in a normal mode of the image forming apparatus, determining whether a network environment of the image forming apparatus, which is reconfigured by changing a speed of the established link, satisfies at least one predetermined condition, and disabling a function of changing the speed of the established link in a sleep mode of the image forming apparatus, based on a result of the determining. | 04-11-2013 |
20130128311 | IMAGE FORMING APPARATUS SUPPORTING PEER-TO-PEER CONNECTION AND METHOD OF EXECUTING APPLICATION PROGRAM THEREOF THROUGH INTERNET PROTOCOL ADDRESS LINKAGE - An application program may be executed through an Internet protocol (IP) address linkage in an image forming apparatus supporting a peer-to-peer connection. The application program may be executed by performing a method which includes connecting the image forming apparatus to a wireless device through a wireless local area network, driving a soft access point (AP) module of the image forming apparatus so that the image forming apparatus functions as an AP, driving a dynamic host configuration protocol server of the image forming apparatus to allocate a dynamic IP address to the connected wireless device, and linking the dynamic IP address allocated to the wireless device with a static IP address that is preset with respect to the wireless device. | 05-23-2013 |
20130148149 | IMAGE FORMING APPARATUS SUPPORTING WI-FI DIRECT AND METHOD OF ACTIVATING WI-FI DIRECT - A multi-function printer (MFP) supporting Wi-Fi Direct includes a print engine to perform a print operation, a first wireless interface to connect the MFP to an access point (AP) of an infrastructured network, a second wireless interface to Wi-Fi Direct connect the MFP to an external wireless terminal, a soft AP to allow the MFP to perform as an AP when the MFP is Wi-Fi Direct connected, a dynamic host configuration protocol (DHCP) server unit to allocate an internet protocol (IP) address to the wireless device that is Wi-Fi Direct connected to the MFP, a Wi-Fi Direct connection manager to manage the Wi-Fi Direct connection, and an automatic group owner (AGO) manager activate Wi-Fi direct so as to drive the soft AP and operate the MFP as a group owner (GO) when the MFP receives a Wi-Fi Direct activation request. | 06-13-2013 |
20130148161 | IMAGE FORMING APPARATUS SUPPORTING PEER-TO-PEER CONNECTION AND METHOD OF MANAGING CHANNEL THEREOF - Provided is a multi-function printer (MFP) supporting Wi-Fi Direct. The MFP includes a print engine to perform a printing operation, a first wireless interface to connect the MFP to an access point (AP) of an infrastructured network, a second wireless interface to connect the MFP to an external wireless terminal in a Wi-Fi Direct, a soft AP to allow the MFP to perform as an AP when the MFP is Wi-Fi Direct connected, and a dynamic host configuration protocol (DHCP) server unit allocating an internet protocol (IP) address to the wireless device that is Wi-Fi Direct connected to the MFP, where the MFP is simultaneously connected to an AP of the infrastructured network and an external wireless terminal via the first wireless interface and the second wireless interface by using one channel. | 06-13-2013 |
20130148162 | IMAGE FORMING APPARATUS SUPPORTING PEER TO PEER CONNECTION AND METHOD OF PERFORMING IMAGE FORMING OPERATION THEREOF - A method of performing an image forming operation in an image forming apparatus supporting peer to peer (P2P) connection includes P2P connecting the image forming apparatus to an external wireless device while the image forming apparatus is wirelessly connected to an access point (AP) of an infrastructured network, receiving a discovery packet from the wireless device via a P2P interface, transmitting to the wireless device a response packet including an Internet protocol (IP) address of the P2P interface, receiving from the wireless device an image forming operation performing request having the IP address of the P2P interface as a destination, and performing the requested image forming operation. | 06-13-2013 |
20140168687 | IMAGE FORMING APPARATUS SUPPORTING NEAR FIELD COMMUNICATION (NFC) FUNCTION AND METHOD OF PERFORMING AUTHENTICATION OF NFC DEVICE THEREOF - An image forming apparatus supporting a near field communication (NFC) function and a method of performing authentication of an NFC device in the image forming apparatus is provided. The method includes receiving identification information by tagging an NFC device and determining whether the NFC device is authenticated or not, by using the received identification information. | 06-19-2014 |
20140185088 | IMAGE FORMING APPARATUS SUPPORTING NEAR FIELD COMMUNICATION (NFC) FUNCTION AND METHOD OF SETTING AN IMAGE JOB USING NFC DEVICE - An image forming apparatus supporting a near field communication (NFC) function and a method of performing setting an image job by using an NFC device. The method includes tagging an NFC device to receive setting information stored in the NFC device and performing an image job based on the received setting information. | 07-03-2014 |
20140368882 | IMAGE FORMING APPARATUS SUPPORTING PEER TO PEER CONNECTION AND METHOD OF PERFORMING IMAGE FORMING OPERATION THEREOF - A method of performing an image forming operation in an image forming apparatus supporting peer to peer (P2P) connection includes P2P connecting the image forming apparatus to an external wireless device while the image forming apparatus is wirelessly connected to an access point (AP) of an infrastructured network, receiving a discovery packet from the wireless device via a P2P interface, transmitting to the wireless device a response packet including an Internet protocol (IP) address of the P2P interface, receiving from the wireless device an image forming operation performing request having the IP address of the P2P interface as a destination, and performing the requested image forming operation. | 12-18-2014 |
20150126115 | METHOD OF REGISTERING USE OF MOBILE TERMINAL TO IMAGE FORMING APPARATUS, THE IMAGE FORMING APPARATUS USING THE METHOD, METHOD OF REQUESTING REGISTRATION OF USE OF THE MOBILE TERMINAL, AND THE MOBILE TERMINAL USING THE METHOD - A method of registering use of a mobile terminal that supports a near field communication (NFC) function, to an image forming apparatus, the image forming apparatus using the method, a method of requesting registration of the use of the mobile terminal supporting the NFC function, and the mobile terminal using the method, which enable registration of use of the mobile terminal to the image forming apparatus without a manager when the mobile terminal performs initial NFC with the image forming apparatus by NFC tagging. | 05-07-2015 |
20150205550 | IMAGE FORMING APPARATUS SUPPORTING FUNCTION OF NEAR FIELD COMMUNICATION AND METHOD OF SETTING NFC OPERATION MODE THEREOF - A near field communication (NFC) operating mode of an image forming apparatus may be set by determining a type of a job to be performed in the image forming apparatus via NFC tagging of a mobile device, determining a first NFC operating mode corresponding to the determined type of the job from among a plurality of NFC operating modes supported by an NFC module, setting the determined first NFC operating mode as an operating state of the NFC module, and performing the job by tagging the mobile device via NFC by using the set first NFC operating mode. | 07-23-2015 |
20150220290 | IMAGE FORMING APPARATUS SUPPORTING WI-FI DIRECT AND METHOD OF ACTIVATING WI-FI DIRECT - An image forming apparatus supporting peer to peer (P2P) connection includes a print engine to perform a print operation; a first wireless interface to connect the image forming apparatus to an access point (AP) of an infrastructured network; a second wireless interface to connect the image forming apparatus to an external mobile device by P2P; a soft AP module to allow the image forming apparatus to perform as an AP when the image forming apparatus is P2P connected; a dynamic host configuration protocol (DHCP) server unit to allocate an internet protocol (IP) address to the mobile device that is P2P connected to the image forming apparatus; a soft AP activating unit to activate the soft AP module; and a control unit. If a discovery packet is received from the mobile device via P2P interface, the control unit is operable to control the image forming apparatus to process the discovery packet. | 08-06-2015 |
Patent application number | Description | Published |
20080265847 | SATURATION PREVENTING POWER FACTOR IMPROVING METHOD AND APPARATUS - Provided are a method and apparatus for improving the power factor of an input power. The apparatus includes an input unit receiving the input power, a power factor correction unit correcting the power factor of the input power applied to the input unit, and a saturation prevention unit controlling the power factor correction unit such that the corrected power does not exceed a set power limit. | 10-30-2008 |
20110096242 | DISPLAY APPARATUS AND POWER SUPPLYING METHOD THEREOF - A display apparatus and a power supplying method are provided. The display apparatus includes a signal receiver which receives a video signal; a signal processor which processes the video signal; a display unit which displays an image based on a video signal processed by the signal processor; and a power supply which converts an alternating current (AC) voltage into a direct current (DC) voltage and supplies an operation voltage to the display unit, the power supply including: a power factor correction (PFC) unit which adjusts the DC voltage and corrects a power factor of the power supply; a detector which detects a plurality of voltages in the power supply and outputs a common detection signal indicating whether at least one of the plurality of voltages is abnormal; and a controller which receives the common detection signal, and controls the PFC unit based on the common detection signal. | 04-28-2011 |
20110134155 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - A display device and a driving method are provided. The display device includes: a display panel which displays an image; at least one light emitting diode (LED) which emits light to the display panel; a driver which supplies an operating voltage to the LED and drives the LED; a feedback unit which detects a level of a voltage drop of the LED and outputs a detection signal corresponding to the detected level of the voltage drop; and a first controller which controls a level of the operating voltage supplied to the LED based on the operating voltage supplied to the LED and the detection signal output by the feedback unit. | 06-09-2011 |
20110163602 | METHOD AND APPARATUS FOR PROVIDING STANDBY POWER FOR VISUAL DISPLAY DEVICE - Provided are an apparatus and method thereof for providing standby power to a visual display, the apparatus including: a light collection unit which is operable to receive light and output a charging current; a battery which is operable to receive the charging current and providing the standby power to the visual display; and a controller which determines whether the battery has a voltage below a predetermined value, wherein if the voltage is below the predetermined value, the controller controls the battery to receive the charging current from the light collection unit, and wherein if the voltage is not below the predetermined value, the controller controls the battery to provide the standby power to the visual display. | 07-07-2011 |
20120044230 | DISPLAY APPARATUS, POWER SUPPLY APPARATUS AND POWER SUPPLY METHOD THEREOF - A display apparatus, a power supply apparatus and a power supply method thereof are provided. The display apparatus includes: a signal processor which processes an image signal; a display unit which displays thereon an image corresponding to the processed image signal; and a power supply unit which receives an input of AC power and supplies operating power to the display unit. The power supply unit includes a discharging circuit unit which discharges a remaining voltage of the power supply unit if the input of the AC power is suspended, and does not discharge the voltage if the AC power is input. Accordingly, a remaining voltage from a power supply unit is effectively removed if an input of AC power is suspended, and power consumption does not occur if the AC power is input. | 02-23-2012 |
20120056707 | TRANSFORMER FOR A POWER SUPPLY CONVERTER - A transformer for an LLC resonant converter having a reduced size and reduced material costs is disclosed. The transformer includes a pair of cores and a bobbin provided with a through hole formed therethrough. Each core includes a first leg and a second leg such that the first legs of the cores are opposite from and are connected to each other within the through hole. The second legs of the cores are opposite each other and are connected to each other at the outside of the bobbin. The bobbin includes a first winding unit on which a primary coil is wound and a second winding unit on which a secondary coil is wound. | 03-08-2012 |
20130106818 | APPARATUS FOR SUPPLYING MULTI-OUTPUT POWER AND DISPLAY APPARATUS USING THE SAME | 05-02-2013 |
20130169612 | POWER SUPPLY AND DISPLAY APPARATUS HAVING THE SAME - A power supply includes: a first switch arranged between an input power supplier and a load; a driving power supplier to receive input power through the first switch and to supply the input power to the load when a current mode of the load is a normal mode; and a power-saving power supplier connected to a power line branched from between the input power supplier and the first switch, the power-saving power supplier generating standby power when the current mode is a standby mode, and including a second switch connected to the power line, a charger to charge power transmitted through the second switch and to output the charged power as the standby power, a voltage detector to detect the voltage of the charged power, and a first controller to receive driving power from the charger and to control operation of the second switch according to the detected voltage. | 07-04-2013 |
20130187899 | GLASSES APPARATUS AND POWER SUPPLY APPARATUS - Glasses apparatus interlocking with a 3D display device is provided. The glasses apparatus includes a shutter glasses unit, a synchronous signal receiving unit receiving a synchronous signal from the 3D display device, a shutter glasses which drives unit driving the shutter glasses unit, a DC/DC converter unit which converts converting a DC voltage provided from a battery, and a control unit which controls the DC/DC converter unit to apply the converted DC voltage to the shutter glasses driving unit through supplying of a PWM signal to the DC/DC converter unit and controlling the shutter glasses driving unit, which is driven by the applied DC voltage, to turn on/off the shutter glasses unit according to the synchronous signal. | 07-25-2013 |
20140354391 | NOISE FILTER AND ELECTRONIC DEVICE WITH INTEGRATED COMMON MODE AND NORMAL MODE NOISE FILTERS - A noise filter and an electronic device including the same are disclosed. The noise filter is configured to suppress noise generated in a power line or a ground line of a power circuit unit provided in an electronic device. The electronic device including: at least one coil connected to the power line and the ground line; and a core around which the coil is wound, a common core portion configured to suppress common mode noise generated at the ground line and a normal core portion configured to suppress normal mode noise generated at the power line are formed as a single body. Thus, the common mode noise filter and the normal mode noise filter are integrated with each other to thereby improve productivity and reduce production costs. | 12-04-2014 |
20140368741 | POWER CIRCUIT PART, POWER CONTROL METHOD THEREOF AND DISPLAY APPARATUS HAVING THE SAME - A power circuit part, a power control method and a display apparatus having the same control an output DC voltage supplied as operating power to elements such as a display to be variably output at different levels according to a voltage level of input AC power. The power circuit part includes a rectifier configured to rectify a current of an input alternating current (AC) power into a direct current (DC); and a power factor corrector configured to output a DC voltage output set at a DC voltage level corresponding to an AC voltage level of the input AC power, and supplies the DC voltage as operating power to the electronic apparatus, wherein the DC voltage level is selected from a plurality of target DC voltage levels each corresponding to at least one of a plurality of AC voltage level ranges. | 12-18-2014 |
20140368742 | POWER SUPPLY, POWER CONTROL METHOD FOR CONTROLLING A STANDBY MODE, AND DISPLAY APPARATUS HAVING THE SAME - A power supply, a power control method and a display apparatus having the same, for controlling a standby mode, are provided. The power supply of an electronic apparatus includes: a rectifier configured to rectify a current of alternating current (AC) power input as input power, into a direct current (DC); a power factor correction (PFC) circuit configured to correct a power factor of a DC voltage converted by the rectifier; a switching circuit configured to convert the DC voltage output by the PFC circuit into a predetermined operating voltage and a standby voltage and supply the operating voltage and the standby voltage to the electronic apparatus; and an output controller configured to control the PFC circuit and the switching circuit to convert the DC voltage into the predetermined operating voltage and standby voltage by the switching circuit and supply the operating voltage and the standby voltage to the electronic apparatus. | 12-18-2014 |
20140369083 | RESONANT CONVERTER, POWER SUPPLY AND POWER CONTROLLING METHOD THEREOF - A resonant converter, a power supply and a power controlling method thereof are provided. The power supply includes a resonant converter which includes a square wave generator configured to alternately turn on and off first and second switches according to a frequency to generate a square wave, a resonant wave generator configured to generate a resonant wave corresponding to the square wave and a rectifier configured to output a voltage corresponding to the resonant wave; and a controller configured to control a frequency modulation of the resonant converter, wherein the controller includes a variable switching circuit configured to increase the frequency of the resonant converter in response to the resonant converter entering a capacitive mode. | 12-18-2014 |
20150130861 | DRIVING APPARATUS, DISPLAY APPARATUS, LIGHT SOURCE DRIVING APPARATUS AND DRIVING METHOD THEREOF - A display apparatus including: a display; a driver including an amplifier configured to detect a current of the display and to generate a constant current control signal, and a transistor configured to adjust the current supplied to the display in accordance an output voltage of the amplifier; and a controller configured to monitor the current of the display and a dropout voltage of the transistor, and control the amplifier so that a pulse width modulation (PWM) duty ratio is decreased in response to the dropout voltage being equal to or higher than a reference voltage. | 05-14-2015 |
20150131331 | APPARATUS AND METHOD FOR SUPPLYING POWER - Disclosed is an apparatus for supplying power to a device. The apparatus includes a transformer configured to output a predetermined voltage to a device varying in load; a switch configured to switch on and off the voltage output from the transformer in accordance with pulse width modulation (PWM) signals; a PWM signal supplier configured to supply the PWM signal to the switch; a feedback circuit which detects the output from the transformer and applies a control signal to the PWM signal supplier; and an output voltage controller which detects a load current of the device, and adjusts the control signal of the feedback circuit by adjusting the output detected by the feedback circuit in accordance with the detected load current. | 05-14-2015 |
20150131332 | ELECTRONIC APPARATUS AND POWER CONTROLLING METHOD THEREOF - Disclosed are an electronic apparatus and a power controlling method thereof, the electronic apparatus including a system portion configured to operate with a received voltage, and a power supply including a pulse width modulation (PWM) generator to generate a PWM signal, a converter to transfer voltage from a primary side to a secondary side in accordance with an output voltage of the PWM generator, and an output portion to supply voltage at the secondary side as standby voltage to the system portion, the PWM generator receives feedback on the standby voltage at the secondary side of the converter, the PWM signal is turned on/off in accordance with levels of the standby voltage at the secondary side, and voltage being supplied to components, except, when the PWM signal is turned off, voltage at the secondary side is only supplied to a component that monitors the feedback of the standby voltage. | 05-14-2015 |
20150138442 | POWER SUPPLY APPARATUS AND DISPLAY APPARATUS USING THE SAME - A power supply apparatus and a display apparatus are provided. The power supply apparatus including: a rectifier configured to receive alternating current (AC) power to output a rectified current; a first converter configured to perform a switching operation with respect to the rectified current to output a first output voltage; and a controller configured to control the first converter in order to perform the switching operation so that the first output voltage reaches a first target value in a first period of the input AC current, and not to perform the switching operation in a second period of the input AC power. | 05-21-2015 |
20150214137 | SEMICONDUCTOR DEVICE - A semiconductor device is provided. The semiconductor device may include a frame portion on which at least one semiconductor chip is arranged; a plurality of leads electrically connected to the semiconductor chip; and a mold portion formed on the frame portion to surround a part of the frame portion on which the semiconductor chip and the plurality of leads are arranged, wherein a gap between closest portions of the respective leads is at least 2.9 mm. | 07-30-2015 |
20150253743 | CONTROL CIRCUIT INCLUDING LOAD SWITCH, ELECTRONIC APPARATUS INCLUDING THE LOAD SWITCH, AND CONTROL METHOD THEREOF - A control circuit is provided. The control circuit includes a load switch, and a controller configured to transfer a turn-on signal which is increased step by step to the load switch, and perform a soft start operation which turns on the load switch. In response to the load switch being turned on, the control circuit restricts an inrush current flowing in the load switch. | 09-10-2015 |
20150270031 | POWER CABLE, IMAGING APPARATUS AND ELECTRONIC DEVICE INCLUDING THE POWER CABLE - A power cable, and an imaging apparatus and an electronic device including the power cable are provided. Power and grounding of the imaging apparatus and the electronic device may be controlled even while the power cable is plugged into a power outlet. The power cable includes a power input including a first input terminal, a second input terminal, and a first ground terminal; a power output including a first output terminal, a second output terminal, and a second ground terminal connected to the first input terminal, the second input terminal, and the first ground terminal, respectively; a first switch that may disconnect the first input terminal from the first output terminal; and a second switch that may disconnect the first ground terminal from the second ground terminal. | 09-24-2015 |
20150271893 | BACKLIGHT UNIT, DISPLAY APPARATUS INCLUDING THE BACKLIGHT UNIT AND OPERATING METHOD THEREOF - A backlight unit, the backlight unit including a light-emitting diode (LED) module; a switching element connected to the LED module; and a controller configured to supply a driving voltage to the LED module, control a switching operation of the switching element, provide a constant current to the LED module, sense an operational error in the switching element, and control the driving voltage of the LED module in response to the sensed operational error. | 09-24-2015 |
20160005376 | DISPLAY APPARATUS, POWER SUPPLY AND POWER SUPPLY METHOD THEREOF - A display apparatus, a power supply and a power supply method are disclosed. A power supply for a display apparatus includes a switching driver configured to perform a switching operation and output an operation voltage; a first charger/discharger configured to set timing of the switching operation; and a controller configured to control the switching driver to disable the switching operation until a voltage previously charged in the first charger/discharger is discharged up to a first voltage, when the display apparatus is in a power saving mode. | 01-07-2016 |
20160028315 | APPARATUS AND METHOD FOR SUPPLYING POWER - An apparatus and method for supplying power to an electronic device are provided. The apparatus includes a power converter, a main converter, and a sub converter. The power converts includes a rectifier configured to convert alternating current (AC) power into direct current (DC) power, and a smoothing condenser connected to an output terminal of the rectifier. The main converter is connected with an output terminal of the power converter and configured to supply power to a first component of the electronic device. The sub converter is connected with the output terminal of the power converter, and configured to supply power to components other than the first component, and to stop supplying the power in response to a momentary power interruption or a voltage dip occurring in the AC power. | 01-28-2016 |
20160028317 | ELECTRONIC APPARATUS, POWER SUPPLY AND POWER CONTROL METHOD THEREOF - A power supply configured to include a switch which performs a switching operation in accordance with a preset period in a standby mode, a transformer which supplies voltage from a primary side to a secondary side in response to the switching operation of the switch, and a constant-voltage controller which controls voltage supplied to the system by regulating the voltage at the secondary side of the transformer, the constant-voltage controller including a blocking diode which shuts off current flowing from an output of the power supply to the constant-voltage controller in an off-section of the switch. Thus, the power consumption is decreased in the off-section, thereby having an effect on reducing the standby power. | 01-28-2016 |
Patent application number | Description | Published |
20080248787 | Method for connecting to network server, terminal using the same, and method for storing information using broadcast - A broadcasting mobile terminal communication method and the broadcasting mobile terminal are disclosed. The method includes displaying a list of broadcast files stored on the terminal, in which at least one of the broadcast files is associated with broadcast related data stored on the terminal, and the broadcasting related data allows a user to obtain additional information about the at least one broadcast file. The method also includes selecting a broadcast file that is associated with broadcast related data, and connecting to an entity that provides the additional information about the at least one broadcast file. | 10-09-2008 |
20080261579 | MOBILE COMMUNICATION TERMINAL AND METHOD OF CONTROLLING VOLUME THEREOF - A mobile communication terminal and method of controlling a volume thereof are disclosed, by which the volume of the mobile communication terminal can be controlled in case of entering a specific mode while a manner mode is set. The present invention includes entering a specific mode for outputting an audio signal while a manner mode is set, selecting a presence or non-presence of an output of the audio signal, and terminating the specific mode, wherein the manner mode is maintained in case of terminating the specific mode. | 10-23-2008 |
20080317510 | TONER CARTRIDGE LOCKING APPARATUS, IMAGE FORMING APPARATUS HAVING THE SAME, TONER CARTRIDGE, AND MOUNTING AND DISMOUNTING METHOD FOR A TONER CARTRIDGE - The present general inventive concept relates to a toner cartridge locking apparatus, which includes a rotation handle rotatably disposed at a first end of a toner tank, and having a locking blade formed at an outer circumferential surface thereof, and a hooking portion disposed at a developing unit to which the toner tank is mounted, wherein when the rotation handle is rotated in a predetermined angle, the locking blade of the rotation handle is inserted into the hooking portion. | 12-25-2008 |
20110153940 | METHOD AND APPARATUS FOR COMMUNICATING DATA BETWEEN PROCESSORS IN MOBILE TERMINAL - A data communication method between processors in a portable terminal and an apparatus thereof are provided. The method includes storing data to be transmitted from a first processor to a second processor in a transmission buffer, determining a size of a free space in a shared memory, sequentially transmitting the data stored in the transmission buffer to the shared memory in units of the size of the free space to the shared memory, and reading out the data transmitted to the shared memory and storing the read data in a reception buffer by a second processor. | 06-23-2011 |
20110221204 | NACELLE COOLING SYSTEM FOR WIND TURBINE - Provided is a nacelle cooling system of a wind turbine. The disclosed nacelle cooling system of a wind turbine comprises cooling blocks which are arranged in order to respectively surround one or more heating devices installed inside a nacelle, a passage pipe line which is connected to the cooling blocks for coolant to flow, a primary heat exchanger which is connected to the passage pipe line and arranged on the outer lateral surface of the nacelle, and a secondary heat exchanger which is capable of absorbing heat generated inside the nacelle and discharging the heat. The nacelles of the primary and secondary heat exchangers are sealed from the outside. Therefore, when the nacelle of the wind turbine is operated in a coastal environment, the present invention can prevent performance of turbine facilities from lowering caused by erosion because the nacelle is completely sealed from external salt. | 09-15-2011 |