Patent application number | Description | Published |
20090135947 | METHOD OF SELECTING CANDIDATE VECTOR AND METHOD OF DETECTING TRANSMISSION SYMBOL - The present invention relates to a method of detecting a candidate vector and a method of detecting a transmission symbol using the same. According to an embodiment of the present invention, in a multiple input multiple output (MIMO) system using spatial multiplexing (SM), a receiver selects candidate vectors corresponding to a layer located at a last row among a plurality of rearranged layers, and sequentially ranks constellation dots of a next layer for each of the selected candidate vectors. Then, a plurality of arbitrary constellation dots are selected from the ranked constellation dots, accumulated costs of the arbitrary constellation dots are calculated, and a candidate vector is selected in correspondence with a constellation dot having a minimal accumulated cost. Then, a new arbitrary constellation dot is selected in place of the constellation dot selected as the candidate vector, an accumulated cost of the selected arbitrary constellation dot is compared with accumulated costs of the other arbitrary constellation dots, and another candidate vector is selected. | 05-28-2009 |
20090147887 | METHOD OF CALCULATING SOFT VALUE AND METHOD OF DETECTING TRANSMISSION SIGNAL - The present invention relates to a method of calculating a soft value and a method of detecting a transmission signal. The present invention estimates a channel on the basis of a received signal and rearranges a plurality of data streams. Further, a plurality of substitute vectors are selected from the rearranged data streams and a metric corresponding to each of the substitute vector is calculated. Further, a threshold value is calculated from a metric calculated for each of the substitute vectors and a soft value of each bit of a transmission signal is calculated from the metric and threshold value corresponding to each of the substitute vectors. | 06-11-2009 |
20100142654 | METHOD AND APPARATUS FOR SIGNAL DETECTION BASED ON MMSE IN MIMO COMMUNICATION SYSTEM - In a multi-input multi-output communication system receiving signals transmitted through a plurality of transmission antennas by using a plurality of reception antennas, a matrix determining a position of a symbol to be detected from a received signal is calculated at a first symbol detection step, and from the subsequent step, a matrix at the current step is acquired through a simple relationship from the matrix calculated at the previous step to determine a position of a symbol to be detected. | 06-10-2010 |
Patent application number | Description | Published |
20120207963 | VACUUM INSULATION PANEL - Disclosed are a vacuum insulation panel, a method for manufacturing the same and an insulation box having the same. By cutting the core material correspondingly to shape and thickness of the absorbent without cut of the core material and pressing the absorbent securing part to form the groove for placing the absorbent therein, the vacuum insulation panel prevents partial deterioration of heat transmission caused by the cutoff of the core material or deterioration of the smoothness caused by placing the absorbent above the core material or between the core materials. Particularly, it is possible to prevent the phenomenon that the periphery is pressed together, which is shown in a conventional press process, to thereby improve the smoothness by cutting the core material in shape and depth corresponding to the shape and thickness of the absorbent prior to the press of the absorbent securing part. Therefore, it is possible to provide an energy saving insulation box by reducing generation of wrinkle or poor sealing of the surface material of the vacuum insulation panel to thereby increase insulation efficiency of the vacuum insulation panel for a long time. | 08-16-2012 |
20120231204 | GROOVED TYPE VACUUM THERMAL INSULATION MATERIAL AND A PRODUCTION METHOD FOR THE SAME - The present invention relates to a groove-type vacuum insulation material and a method of manufacturing the same. The groove-type vacuum insulation material includes core materials each having a block shape, at least one lateral wall of which has an inclined surface; a groove-type insulation board, in which the core materials are arranged on a plane of the board to be separated from each other, with the inclined surfaces thereof facing each other; an outer skin material formed in a film pouch shape and surrounding the entirety of upper and lower sides of the groove-type insulation board, the outer skin material being brought into close contact with the groove-type insulation board by vacuum-sealing, and exhibiting bending characteristics in a space between the core materials. The present invention also relates to a method of manufacturing the same. | 09-13-2012 |
20130142983 | COMPOSITE CORE MATERIAL FOR VACUUM INSULATION PANEL, PREPARATION METHOD THEREOF, AND VACUUM INSULATION PANEL USING THE SAME - The present invention relates to a composite core material for a vacuum insulation panel which exhibits excellent initial insulation and long-term durability, a method of manufacturing the same, and a vacuum insulation panel using the same. The vacuum insulation panel includes a composite core material formed of glass fiber wool and a glass fiber board, and an outer skin material having a layered structure comprising a surface protective layer, a metal barrier layer, and a bonding layer from the outside to vacuum-package the core material. | 06-06-2013 |
20130192335 | VACUUM THERMAL-INSULATION MATERIAL, AND A DEVICE AND METHOD FOR ASSESSING THE DEGREE OF VACUUM IN THE VACUUM INSULATION MATERIAL BY USING THE FREQUENCY RESPONSE METHOD - Disclosed herein is a vacuum insulation material, which includes a barrier film and a core, wherein a rigid body thinner than a reference thickness or a getter harder than a reference hardness is formed between the barrier film and the core, or the rigid body thinner than the reference thickness is formed on the getter formed between the barrier film and the core to ensure surface flatness and surface hardness of the vacuum insulation material. | 08-01-2013 |
20130314720 | APPARATUS FOR MEASURING THE DEGREE OF VACUUM OF A MULTISTAGE VACUUM HEAT-INSULATING MEMBER, AND MEASUREMENT METHOD USING SAME - An apparatus for measuring the degree of vacuum of a multistage vacuum heat-insulating member and to a measurement method using the same includes a chamber in which a plurality of vacuum heat-insulating members are accommodated and which forms a sealed space; a shelf arranged within the chamber so as to support the plurality of vacuum heat-insulating members in a plurality of layers; a displacement sensor for sensing the displacement of each outer shell of the vacuum heat-insulating members stacked on the shelf; and a vacuum unit connected to the chamber so as to regulate the pressure of the internal space of the chamber. | 11-28-2013 |
20140178626 | VACUUM THERMAL INSULATION MATERIAL EQUIPPED WITH A GETTER MATERIAL FOR WATER-FRACTION AND GAS ADSORPTION, AND PRODUCTION METHOD THEREFOR - The vacuum thermal insulation material of the present invention comprises: a core material part which is hermetically sealed under reduced pressure; a getter part which is provided on one side in the middle of the core part; and an outer skin material part which surrounds the core material part and is hermetically sealed. In the getter part, a getter material, comprising a mixture of a hygroscopic material and a gas-adsorbing material, is packed in the form of a nonwoven fabric. In the vacuum thermal insulation material of the present invention, the hygroscopic material is any one of calcium oxide, calcium chloride, zeolite, silica gel, alumina and activated carbon, while the gas-adsorbing material is an oxygen-adsorbing material comprising a Fe based compound; and the hygroscopic material and the gas-adsorbing material are mixed in a ratio of between 20:1 and 200:1. | 06-26-2014 |
20140322477 | HIGH TEMPERATURE VACUUM INSULATION PANEL - The present invention relates to a vacuum insulation panel comprising a core material, and a shell material, and more specifically, to a high temperature vacuum insulation panel usable in a high temperature range. The present invention provides a high temperature vacuum insulation panel including: an inorganic core material comprising glass fiber; and a shell material for sealing the inorganic core material in which the shell material comprises a composite film including a thermal deposition layer adhered to the surface of the inorganic core material, a protective layer for absorbing and dispersing external impact, and a barrier layer for blocking the permeation of gas or moisture between the thermal deposition layer and the protective layer. | 10-30-2014 |
Patent application number | Description | Published |
20100019860 | Switchable Combiner/Divider With Multiple Inputs/Outputs - A switchable combiner/divider with multiple inputs/outputs is provided. The switchable combiner/divider with multiple inputs/outputs includes multiple input ports for receiving multiple incoming signals, multiple output ports, a switching part for alternately connecting the multiple input ports to output ports as a circulating configuration, and a controller for providing switching control signals to the switching part. | 01-28-2010 |
20100074217 | Method and Apparatus for Managing Sector of Base Station in Mobile Telecommunication Systems - Disclosed is a method for operating sectors of a base station in a mobile telecommunication system. For this, the method includes the steps of: outputting, at a prescribed time period equal to T1, data, including alpha sector data, beta sector data, and gamma sector data, which is to be transmitted to a mobile station, in sequence and by sectors; dividing a frequency in a scheme of time division at a time period which equals either tα, tβ or tγ and which corresponds to the data length by the sector of data which is output in the outputting data, and carrying out a frequency assignment in sequence and by the sector. Accordingly, only relevant data is transmitted to a sector assigned the frequency, and a traffic variation of each sector can be met. | 03-25-2010 |
20110176462 | BASE STATION ANTENNA IN A MOBILE COMMUNICATION SYSTEM - A Base Station (BS) antenna in a mobile communication system is provided, in which a reflective plate has a frontal surface onto which radiation elements are attached, and at least one protector is attached onto the reflective plate, surrounding at least part of the reflective plate. | 07-21-2011 |
Patent application number | Description | Published |
20090231815 | ENCLOSURE DEVICE OF WIRELESS COMMUNICATION APPARATUS - An enclosure device of a wireless communication apparatus, which has a tubular structure with increased heat dissipation not unknown heretofore. A section of the enclosure device has a polygonal or circular shape, such as a substantially cylindrical structure, and the enclosure, which has a plurality of radiation fins arranged on an outer surface of the enclosure in a vertical direction, is formed integrally with the radiation fins by using a compression method. Various communication devices of the wire communication apparatus are mounted on the interior of the enclosure. The structure is preferably formed by the radiation fins and exhibits an increased radiation effect than that of a structure where radiation fins are arranged side by side on a flat plane. | 09-17-2009 |
20140082250 | EMBEDDED MULTIMEDIA CARD (eMMC), HOST FOR CONTROLLING eMMC, AND METHOD OPERATION FOR eMMC SYSTEM - An eMMC includes flash memory including an extended card specific data (CSD) register (“EXT_CSD register”), and an eMMC controller that controls operation of the flash memory. The eMMC controller is receives a clock from a host via a clock line, receives a SEND_EXT_CSD command from the host via a command line, and provides the host with eMMC information stored in the EXT_CSD register via a data bus in response to the SEND_EXT_CSD command, the eMMC information including maximum operating frequency information for the eMMC. | 03-20-2014 |
20140082397 | EMBEDDED MULTIMEDIA CARD USING UNIDIRECTIONAL DATA STROBE SIGNAL, HOST FOR CONTROLLING THE SAME, AND RELATED METHODS OF OPERATION - An embedded multimedia card (eMMC) comprises a clock channel configured to receive a clock signal from a host, a command channel configured to receive a command from the host, a plurality of data channels configured to transmit data to the host, a data strobe channel configured to transmit a data strobe signal synchronized with the data to the host, and a data strobe control unit configured to selectively enable or generate the data strobe signal according to a protocol control signal. | 03-20-2014 |
20140082398 | EMBEDDED MULTIMEDIA CARD (eMMC), HOST CONTROLLING eMMC, AND METHOD OPERATING eMMC SYSTEM - An embedded multimedia card (eMMC) is provided. The eMMC includes a clock channel receiving a clock output from a host, data channels receiving data signals from the host, and a command channel receiving a SWITCH command including delay offset values from the host so as to adjust a delay of at least one of the data signals, which are received, in response to the delay offset values. | 03-20-2014 |
20140082402 | EMBEDDED MULTIMEDIA CARD (eMMC), HOST FOR CONTROLLING eMMC METHOD OPERATING eMMC SYSTEM - An embedded multimedia card (eMMC) includes a clock channel receiving a clock from a host, a complementary clock channel receiving a complementary clock from the host, a command/response channel exchanging commands/responses with the host, a plurality of data channels exchanging data between the host and the eMMC, a return clock channel sending a return clock to the host synchronously with data, a complementary return clock channel sending a complementary return clock to the host, and a reference voltage channel that either receives a reference voltage from the host or communicates a reference voltage to the host. | 03-20-2014 |
20140082404 | EMBEDDED MULTIMEDIA CARD (eMMC), eMMC SYSTEM, AND METHODS OF OPERATION - An embedded multimedia card (eMMC) communicating with a host includes; a latch circuit that receives and latches a data signal according to either a first edge or a second edge of a clock to thereby generate a latched data signal, and a start bit detector that detects in the latched data signal a start bit and provides a valid data signal from a portion of the latched data signal following the start bit. | 03-20-2014 |
20140082405 | EMBEDDED MULTIMEDIA CARD (eMMC), HOST CONTROLLING eMMC, AND METHOD OPERATING eMMC SYSTEM - An embedded multimedia card (eMMC) includes a clock channel that receives a clock signal from a host, a command channel that receives a command from the host, a plurality of data channels that transmit data to the host, and a return clock channel that transmits a return clock synchronized with the data to the host. | 03-20-2014 |
Patent application number | Description | Published |
20110115295 | ENERGY MANAGEMENT SYSTEM AND GRID-CONNECTED ENERGY STORAGE SYSTEM INCLUDING THE ENERGY MANAGEMENT SYSTEM - An energy management system includes: a first interface configured to receive a first power from a power generation system; a second interface configured to couple to the power generation system, a power grid, and a storage device, and to receive at least one of the first power from the power generation system, a second power from the power grid, or a third power from the storage device, and to supply a fourth power to at least one of the power grid or a load; and a third interface configured to receive the third power from the storage device, and to supply a fifth power to the storage device for storage. | 05-19-2011 |
20150070024 | BATTERY PACK, APPARATUS INCLUDING BATTERY PACK, AND METHOD OF MANAGING BATTERY PACK - A battery pack including a battery coupled to a load and a charging device, and comprising at least one battery cell, and a battery management unit for controlling charging of the battery from the charging device and discharging of the battery to the load, wherein the battery management unit includes a measuring unit for generating cell voltage data and current data by measuring a cell voltage and a current of the at least one battery cell, a capacity estimating unit for generating current capacity data based on the cell voltage data and the current data, an internal resistance estimating unit for generating current internal resistance data based on the cell voltage data and the current data, and a state of health (SOH) estimating unit for estimating an SOH of the at least one battery cell based on the current capacity data and the current internal resistance data. | 03-12-2015 |
Patent application number | Description | Published |
20080218504 | POWER SUPPLY AND DRIVER FOR PLASMA DISPLAY PANEL - A plasma display panel having a power supply unit connected to a scan driver without a bootstrap circuit. The driver includes a power supply unit supplying a first output voltage of a first level and has a pair of output terminals, a scan driving unit comprising a first driving switch controlling the connection of one of output terminals of the power supply unit to the electrodes of the plasma display panel and a second driving switch controlling the application of a second output voltage of a second level to the electrodes of the plasma display panel, and a third driving switch that controls the connection of a power input terminal of the second output voltage of the second level to the electrodes of the plasma display panel by being connected between the power input terminal of the second output voltage of the second level and the second driving switch. | 09-11-2008 |
20080238329 | Plasma display device and driving method thereof - A plasma display device and driving method thereof are disclosed. In the plasma display device, a wall charge state of each cell is initialized after forming a wall voltage between respective sustain electrodes by gradually decreasing a voltage of the sustain electrodes. In addition, in a sustain period, a high level sustain discharge pulse having a positive voltage and a low level sustain discharge pulse having a negative voltage are applied to the sustain electrode while maintaining a voltage of a scan electrode at a ground voltage. In this way, a maximum voltage applied to a scan electrode driver that applies the driving waveform to the scan electrode is decreased. In addition, a sustain discharge pulse is applied only to the sustain electrode, which is a common electrode, and therefore the driving waveform between each cell can be prevented from being distorted in the sustain period. | 10-02-2008 |
20090033232 | PLASMA DISPLAY AND VOLTAGE GENERATOR THEREOF - A plasma display device including a plasma display panel (PDP), a temperature detector for detecting temperature of the PDP, a driver for applying a driving voltage to a scan electrode, and a controller for generating a control signal to control the driver according to the temperature. The driver includes a transistor and first and second resistors. The transistor is coupled between a first power source and the scan electrode. The first power source supplies a scan voltage to the scan electrode. At least one of the first resistor and the second resistor is a variable resistor having a resistance that varies according to the control signal of the controller. A low discharge due to high temperature can be reduced or prevented, and the number of power sources of the plasma display device can be reduced. | 02-05-2009 |
20090296353 | PLASMA DISPLAY DEVICE - A display device includes a display panel for displaying an image, a chassis base for supporting the display panel and a heat dissipating plate at one side of the chassis base. The display device further includes a printed circuit board between the heat dissipating plate and the chassis base attached to the heat dissipating plate and electrically connected to the display panel, and a switch electrically connected to the printed circuit board to generate a signal for controlling the display panel, the switch being attached to the heat dissipating plate. | 12-03-2009 |
20100149144 | PLASMA DISPLAY AND DRIVING APPARATUS THEREOF - A plasma display is disclosed. In one aspect, the display includes a scan driving board that applies a sustain pulse to a scan electrode during a sustain period and a sustain driving board that applies a sustain pulse to a sustain electrode during the sustain period. The scan driving board and the sustain driving board are connected by a harness. Ground wires are disposed at both sides of the harness and main path wires are disposed between the ground wires. | 06-17-2010 |
20100328300 | PLASMA DISPLAY PANEL DRIVING DEVICE - A switching control circuit for a scan driving unit or a sustain driving unit of a plasma display panel driving device is disclosed. The switching control circuit includes a level shift circuit configured to generate a level-shifted signal by level shifting a control signal to a level referenced to a negative reference voltage, where the control signal was referenced to a ground voltage. The switching control circuit also includes a driver IC configured to amplify the level-shifted signal, and a switching circuit configured to perform a switching operation corresponding to the output signal. | 12-30-2010 |