Patent application number | Description | Published |
20120136543 | APPARATUS FOR PARKING CONTROL OF AUTOMATIC TRANSMISSION VEHICLE AND METHOD THEREOF - An apparatus for parking control of an automatic transmission vehicle may include a speed detector that provides a controller with a vehicle speed, a shift lever detector that provides the controller with a position of a shift lever, the controller that analyses the vehicle speed and the position of the shift lever, and supplies a predetermined hydraulic pressure to brake elements and clutch elements in order to create drag on a parking gear shaft in conversion into a parking mode, and an actuator that supplies the hydraulic pressure to the clutch elements and the brake elements or discharges the hydraulic pressure from the clutch elements and the brake elements according to the control of the controller. | 05-31-2012 |
20120292154 | APPARATUS FOR REDUCING TRANSMISSION SHOCK IN AUTOMATIC TRANSMISSION - An apparatus for reducing transmission shock of an automatic transmission may include a piston operated by a control pressure, a clutch performing a clutching operation by an operation of the piston, and a cushion spring arranged between the piston and the clutch which varies by stages in stiffness of the spring with an operating position of the piston. The cushion spring may be formed with one or more sets of a plurality of curved-surface springs bent in an operating direction of the clutch and connected with each other, each set of the plurality of curved-surface springs having a different bending height. | 11-22-2012 |
20130037001 | CONTROL METHOD OF DIESEL VEHICLE - An idle throttle valve control method of a diesel vehicle, may include a first step of determining whether an idle entry condition of the vehicle may be satisfied, a second step of controlling a throttle valve based on an air amount map and controlling an exhaust gas recirculation (EGR) valve based on an EGR map, when the first step may be satisfied, a third step of determining whether an idle release condition may be satisfied during the second step, and a fourth step of determining whether an EGR return condition may be satisfied, when the idle release condition may be satisfied in the third step. | 02-14-2013 |
20130150213 | CONTROL METHOD FOR SHIFTING IN MANUAL TRANSMISSION VEHICLE - A control method for shifting in a manual transmission vehicle may include sensing tip-out while the vehicle travels; operating a tip-out torque filter when the tip-out is sensed; determining whether a switch of a clutch of the vehicle is turned on; stopping fuel injection by stopping the tip-out torque filter when the switch of the clutch is turned on, and reducing rotation speed of an engine by controlling a throttle flap of the vehicle. | 06-13-2013 |
20130151090 | VEHICLE SPEED CONTROL SYSTEM AND CONTROL METHOD FOR THE SAME - A vehicle speed control system and method controls vehicle speed when a constant speed travel system for a vehicle operates. The system includes a detector that detects travel speed of the vehicle, a throttle valve opening/closing unit that opens/closes a throttle valve in the vehicle, a brake control unit that controls the operation of a brake in the vehicle, a transmission control unit that changes shift stages of a transmission in the vehicle, and a control unit that extracts the difference between a travel speed and a desired speed and controls the throttle valve opening/closing unit, the brake control unit, and the transmission control unit to gradually operate in accordance with the extracted speed difference value, when the travel speed received from the speed detector is larger than the desired speed set in the constant speed travel system. | 06-13-2013 |
20130151099 | METHOD FOR CONTROLLING A DAMPER CLUTCH - A method for controlling a damper clutch may include determining whether the damper clutch is in a slip or lock-up state in a driving state of a vehicle, determining whether a condition of the vehicle is within a predetermined resonant range, determining whether a torque of the vehicle is within a predetermined resonant torque range, detecting a subharmonic vibration when the damper clutch is in the slip or lock-up state, the condition of the vehicle is within the predetermined resonant range, and the torque of the vehicle is within the predetermined resonant torque range, and controlling the damper clutch to slip or be open when the subharmonic vibration is larger than a predetermined value. | 06-13-2013 |
20130151108 | METHOD FOR CONTROLLING TORQUE OF ENGINE - A method for controlling an engine torque, may include determining an engagement degree of a clutch in a transmission while a vehicle travels, determining whether a state of the vehicle corresponds to a resonance region where abnormal vibration may be generated by a rigidity change according to the engagement degree, determining whether torque in the vehicle corresponds to a resonance torque region where abnormal vibration may be generated by a rigidity change according to the engagement degree, checking a sub-harmonic value when the engagement degree may be a predetermined degree or more and the vehicle may be in the resonance region and the resonance torque region, and controlling the engine torque to avoid a rigidity change torque when the checked sub-harmonic value may be over a first predetermined value. | 06-13-2013 |
Patent application number | Description | Published |
20150016019 | MULTILAYER CERAMIC ELECTRONIC COMPONENT TO BE EMBEDDED IN BOARD - A multilayer ceramic electronic component to be embedded in a board may include: a ceramic body in which a plurality of dielectric layers are stacked; a plurality of first and second internal electrodes alternately exposed through both end surfaces of the ceramic body, respectively, with at least one of the dielectric layers interposed therebetween; and first and second external electrodes disposed on the end surfaces of the ceramic body and electrically connected to the first and second internal electrodes, respectively. Each of the first and second external electrodes includes a first external electrode layer containing a glass component and disposed on the end surface of the ceramic body and a second external electrode layer being glass-free and covering the first external electrode layer. | 01-15-2015 |
20150041199 | MULTILAYER CERAMIC ELECTRONIC COMPONENT TO BE EMBEDDED IN BOARD AND PRINTED CIRCUIT BOARD HAVING MULTILAYER CERAMIC ELECTRONIC COMPONENT EMBEDDED THEREIN - A multilayer ceramic electronic component to be embedded in a board includes: a ceramic body including dielectric layers; first and second internal electrodes formed in the ceramic body; and first-polarity external electrodes connected to the first internal electrodes, and second-polarity external electrodes connected to the second internal electrodes, wherein the number of the first-polarity external electrodes and the number of the second-polarity external electrodes may be two or more, the first-polarity and second-polarity external electrodes may include first-polarity and second-polarity base electrodes and first-polarity and second-polarity terminal electrodes formed on the first-polarity and second-polarity base electrodes, respectively, when L denotes a length of the ceramic body and W denotes a width thereof, W/L≧0.6 may be satisfied, and a width BW of each of the first-polarity and second-polarity external electrodes formed on the first and second main surfaces of the ceramic body may satisfy 150 μm≦BW≦350 μm. | 02-12-2015 |
20150098202 | EMBEDDED MULTILAYER CERAMIC ELECTRONIC COMPONENT AND PRINTED CIRCUIT BOARD HAVING THE SAME - A multilayer ceramic electronic component embedded in a board may include: a ceramic body including dielectric layers; a plurality of first and second internal electrodes alternately exposed through both end surfaces of the ceramic body; and first and second external electrodes formed on both end portions of the ceramic body, respectively. The first external electrode may include a first base electrode and a first terminal electrode, the second external electrode may include a second base electrode and a second terminal electrode, 400 nm≦Ra≦600 nm may be satisfied when a surface roughness in a region of 50 μm×50 μm in the first and second terminal electrodes is defined as Ra, and 130 nm≦Ra′≦400 nm may be satisfied when a surface roughness in a region of 10 μm×10 μm in the first and second terminal electrodes is defined as Ra′. | 04-09-2015 |
20150124371 | MULTILAYER CERAMIC CAPACITOR - A multilayer ceramic capacitor may have low equivalent series inductance (ESL), in which via electrodes are opposed to each other diagonally and be off-centered from positions corresponding to center points of external electrodes, so that a distance between the via electrodes is significantly reduced and a current path is reduced. | 05-07-2015 |
20150223340 | MULTILAYER CERAMIC ELECTRONIC COMPONENT TO BE EMBEDDED IN BOARD, MANUFACTURING METHOD THEREOF, AND PRINTED CIRCUIT BOARD HAVING MULTILAYER CERAMIC ELECTRONIC COMPONENT - In a multilayer ceramic electronic component to be embedded in a board, a thickness of a ceramic body in an overall chip may be increased by not allowing an increase in a thickness of an external electrode to occur, while forming a band surface of the external electrode having a predetermined length or greater for connecting the external electrode to an external wiring through a via hole, thereby improving chip strength and preventing the occurrence of damage such as breakage, or the like, a manufacturing method thereof, and a printed circuit board having the multilayer ceramic electronic component. | 08-06-2015 |
Patent application number | Description | Published |
20140220743 | POWER MODULE PACKAGE AND METHOD FOR MANUFACTURING THE SAME - Disclosed herein is a power module package including an external connection terminal, a substrate in which a fastening unit allowing one end of the external connection terminal to be insertedly fastened thereinto is formed to penetrate in a thickness direction thereof, and a semiconductor chip mounted on one surface of the substrate. | 08-07-2014 |
20150214126 | POWER SEMICONDUCTOR MODULE - Disclosed herein is a power semiconductor module. The power semiconductor module includes: a printed circuit board (PCB); first and second heat spreaders mounted on the PCB and having one surface arranged with terminal slots; power devices mounted on the first heat spreader and connected to one another in parallel and electrically connected to the second heat spreader; and first and second terminals provided with protrusion inserted into the terminal slots and provided with connection terminals for connecting external terminals. Therefore, it is possible to improve heat radiating properties of the power semiconductor module and improve a reliability problem such as solder crack or delamination in connection with terminal connection. | 07-30-2015 |
20150214140 | LEADLESS PACKAGE TYPE POWER SEMICONDUCTOR MODULE - There is provided a leadless package type power semiconductor module. According to an exemplary embodiment of the present disclosure, the leadless package type power semiconductor module includes: connection terminals of a surface mounting type (SMT) formed at edges at which respective sides of four surfaces meet each other; a first mounting area connected to the connection terminals through a bridge to be disposed at a central portion thereof and mounted with power devices or control ICs electrically connected to the power devices to control the power devices; and second mounting areas formed between the connection terminals and mounted with the power devices or the control ICs, wherein the first mounting area is disposed at a different height from the second mounting area through the bridge to generate a phase difference from the second mounting area. Therefore, it is possible to implement a high-integration, high-performance, and small power semiconductor module by applying a three-dimensional structure deviating from a one-dimensional flat structure. | 07-30-2015 |
20150214199 | POWER MODULE PACKAGE AND METHOD OF MANUFACTURING THE SAME - Disclosed herein are a power module package and a method of manufacturing the same. According to a preferred embodiment of the present invention, the power module package includes: a lead frame on which a power device and a control IC electrically connected to the power device and controlling the power device are mounted; and a thermal sheet bonded to one surface of the lead frame, wherein the thermal sheet includes first and second resin layers which include a thermal conductive inorganic filler and are added with a mixture of phenyl glycidyl ether (PGE) and alkyl glycidyl ether (Alkyl (C12 to C14) glycidyl ether), and a thermal spreader of a metal material disposed at a bonded interface which is formed between the first and second resin layers. Therefore, it is possible to easily improve a thermal property of the power module package by a thermal spreading effect due to the thermal spreader. | 07-30-2015 |
20150270201 | SEMICONDUCTOR MODULE PACKAGE AND METHOD OF MANUFACTURING THE SAME - There is provided a semiconductor module package including: a base substrate formed by mounting one or more first semiconductor devices thereon; a lead frame formed to have an end portion of one side connected to the base substrate and an end portion of the other side protruded to the outside; a supporting frame formed on a top surface of the first semiconductor device and having a first adjusting member formed to protrude to a lower portion thereof; and a mold part sealing the base substrate, the lead frame, and a portion of the supporting frame, wherein one or more of the first semiconductor devices are formed to have different steps from each other. | 09-24-2015 |
20150270207 | SEMICONDUCTOR MODULE PACKAGE AND METHOD OF MANUFACTURING THE SAME - There is provided a semiconductor module package including: a base substrate formed by mounting one or more first semiconductor devices thereon; a lead frame formed on a top surface of the first semiconductor device and having an inlet formed to inject a solder paste; and spaces inserted between the first semiconductor device and the lead frame to form a separation space, wherein the solder paste is filled in the separation space. | 09-24-2015 |
20150270217 | POWER MODULE PACKAGE - There is provided a power module package. The power module package includes: a base substrate provided with a pattern; a heat spreader formed by being stacked on an upper surface of the base substrate; and at least one first semiconductor device mounted on an upper surface of the heat spreader, wherein an outer circumferential surface of the heat spreader is provided with a coil. | 09-24-2015 |
20150349230 | HEAT RADIATION SHEET FOR BOARD, MANUFACTURING METHOD THEREOF, AND HEAT RADIATION BOARD - A heat radiation sheet for a board including: composite fillers including metal particles and ceramic particles disposed on surfaces of the metal particles; and a base resin, and a manufacturing method of a heat radiation sheet for a board may include: preparing metal particles and ceramic particles; disposing the ceramic particles on surfaces of the metal particles by mixing the metal particles and the ceramic particles with each other; forming oxidized layers on exposed surfaces of the metal particles; and forming a prepreg by mixing composite fillers including the metal particles and the ceramic particles and a base resin with each other. | 12-03-2015 |
Patent application number | Description | Published |
20140351306 | METHOD OF GENERATING CORRELATION FUNCTION, METHOD OF TRACKING SIGNAL AND SIGNAL TRACKING SYSTEM - A method of generating a correlation function, a method of tracking a signal, and a signal tracking apparatus are provided. The method of generating a correlation function involves receiving a CBOC(6,1,1/11) signal, interpreting a subcarrier pulse period of the CBOC(6,1,1/11) signal as a subcarrier pulse period of BOC | 11-27-2014 |
20150029961 | METHOD OF SELECTING TRANSMISSION PARAMETER AND DYNAMIC SPECTRUM ALLOCATION APPARATUS - A method of selecting a transmission parameter and a spectrum allocation apparatus are provided. The method of selecting a transmission parameter involves collecting frequency band information comprising a frequency bandwidth and communication environment information comprising a power density of noise, constituting a plurality of single-objective fitness functions comprising a bandwidth fitness function based on data transmission using two frequency bands, using the frequency band information and the communication environment information, constituting a multi-objective fitness function obtained by assigning a weight value to each of the plurality of single-objective fitness functions, and selecting the transmission parameter by applying a genetic algorithm to the multi-objective fitness function. | 01-29-2015 |
20150030108 | FREQUENCY OFFSET ESTIMATION METHOD IN OFDM SYSTEM AND OFDM RECEIVER USING THE SAME - A method of estimating a frequency offset based on a training symbol in a receiver of an orthogonal frequency division multiplexing (OFDM) system, includes receiving a first training symbol having a periodicity and a predetermined second training symbol, and calculating a correlation value for the first training symbol based on a coherence phase bandwidth (CPB). The method further includes determining a position of a peak value from the correlation value for an integer multiple frequency offset candidate based on a threshold value, and calculating a correlation value for the second training symbol based on the CPB. The method further includes estimating a position corresponding to a maximum value of the correlation value for the second training symbol as the frequency offset based on the position of the peak value. | 01-29-2015 |
20150031309 | METHOD OF SPECTRUM SENSING AND APPARATUS USING THE SAME - A method of spectrum sensing and an apparatus for spectrum sensing are provided. A method of spectrum sensing involves partitioning, by a processor, a spectrum sensing section into a plurality of sub-periods each having a same size, performing energy detection in each of the plurality of sub-periods, and determining whether a primary user's signal is present in the spectrum sensing section based on presence of a primary user's signal in each of the plurality of sub-periods and a test statistic in each of the plurality of sub-periods. | 01-29-2015 |
20150346346 | METHOD OF SELECTING SATELLITE FOR POSITIONING IN GLOBAL NAVIGATION SATELLITE SYSTEM, SATELLITE SIGNAL RECEIVER, AND METHOD OF CREATING DOP INDEX - There is provided a method of selecting a satellite for positioning in a global navigation satellite system, which includes: receiving satellite signals from satellites that a receiver can receive; calculating DOP where pseudorange weight is applied for each of satellite signal combinations including at least four or more of the satellite signals by the receiver; and selecting a satellite signal combination having the smaller DOP than a standard in the satellite signal combinations by the receiver. | 12-03-2015 |
20150349946 | METHOD OF CREATING AltBOC CORRELATION FUNCTION, METHOD OF TRACKING AltBOC SIGNAL, AND SYSTEM FOR TRACKING AltBOC SIGNAL CROSS-REFERENCE TO RELATED APPLICATIONS - There is provided a method of creating an AltBOC correlation function that includes: receiving an AltBOC signal by a receiver; analyzing a subcarrier of the AltBOC signal into eight partial subcarriers having the same period by the receiver; creating partial correlation functions by correlating each of the eight partial subcarriers with the AltBOC signal by the receiver; and creating a resultant correlation function by combining the partial correlation functions by the receiver. | 12-03-2015 |
Patent application number | Description | Published |
20150109947 | SPECTRUM SENSING APPARATUS AND METHOD FOR COOPERATIVE COGNITIVE RADIO NETWORK IN NON-GAUSSIAN NOISE ENVIRONMENT, AND FUSION CENTER APPARATUS AND COOPERATIVE COGNITIVE RADIO SYSTEM USING THE SAME - Disclosed herein are a spectrum sensing apparatus and method for a cognitive radio (CCR) network in a non-Gaussian noise environment and an FC apparatus and CCR system using the same. The cooperative cognitive radio (CCR) system includes M cognitive radios (CRs), and a fusion center (FC). Each of the M CRs samples a baseband signal obtained by down-converting a radio signal detected in the corresponding frequency spectrum, and generates spectrum sensing information (SSI) indicating that a PU signal has been detected based on the results of the sampling. The FC determines a joint threshold λ | 04-23-2015 |
20150117499 | METHOD OF GENERATING BINARY OFFSET CARRIER CORRELATION FUNCTION BASED ON PARTIAL CORRELATION FUNCTIONS, APPARATUS FOR TRACKING BINARY OFFSET CARRIER SIGNAL, AND SPREAD SPECTRUM SIGNAL RECEIVER SYSTEM USING THE SAME - A method of generating a BOC correlation function based on partial correlation functions, an apparatus for tracking a BOC signal, and a spread spectrum signal receiver system using the same are disclosed herein. The apparatus includes a frequency offset compensation unit, a local code generation unit, a mixer, a delay lock loop (DLL), a phase lock loop (PLL), and a data extraction unit. The frequency offset compensation unit outputs a compensated received signal with respect to a received signal. The local code generation unit generates a delay-compensated local code based on a code delay value. The mixer mixes the delay-compensated local code with the frequency offset-compensated received signal. The DLL repeatedly tracks and calculates a code delay value. The PLL repeatedly calculates a carrier frequency compensation value. The data extraction unit extracts spreading data from a mixture of the delay-compensated local code and the compensated received signal. | 04-30-2015 |
20150124919 | METHOD OF GENERATING UNAMBIGUOUS CORRELATION FUNCTION FOR TMBOC (6,1,4/33)SIGNAL BASED ON PARTIAL CORRELATION FUNCTIONS, APPARATUS FOR TRACKING TMBOC SIGNAL, AND SATELLITE NAVIGATION SIGNAL RECEIVER SYSTEM USING THE SAME - A method of generating an unambiguous correlation function for a TMBOC(6,1,4/33) signal, an apparatus for tracking a TMBOC signal, and a satellite navigation signal receiver system using the same are disclosed herein. The method of generating a correlation function for a TMBOC(6,1,4/33) signal includes generating a delayed signal delayed based on a phase delay with respect to the signal pulse train of a TMBOC(6,1,4/33)-modulated received signal; generating BOC(1,1) partial correlation functions and BOC(6,1) partial correlation functions by performing an auto-correlation operation on the received signal and the delayed signal with respect to the total time; generating a BOC(1,1) sub-correlation function; obtaining a first intermediate correlation function, obtaining second to eleventh intermediate correlation functions, and generating the BOC(6,1) sub-correlation function by summing all the first to eleventh intermediate correlation functions; and generating a main correlation function by combining the BOC(1,1) and BOC(6,1) sub-correlation functions. | 05-07-2015 |
20150138016 | METHOD FOR GENERATING UNAMBIGUOUS CORRELATION FUNCTION FOR CBOC (6,1,1/11) SIGNAL BASED ON PARTIAL CORRELATION FUNCTIONS, APPARATUS FOR TRACKING CBOC SIGNALS AND SATELLITE NAVIGATION SIGNAL RECEIVER SYSTEM - A method of generating a correlation function for a CBOC(6,1,1/11) signal according to the present invention includes generating a delayed signal delayed based on a phase delay, with respect to a signal pulse train of a CBOC(6,1,1/11)-modulated received signal, generating first to twelfth partial correlation functions by performing an autocorrelation operation of the received signal and the delayed signal with respect to a total time, generating a basic intermediate correlation function by performing an elimination operation on sixth and seventh partial correlation functions, acquiring first to fifth and eighth to twelfth additional intermediate correlation functions by performing an elimination operation on each of partial correlation functions, excluding the sixth and seventh partial correlation functions from the first to twelfth partial correlation functions, and a basic intermediate correlation function, and acquiring the main correlation function by simply summing the basic intermediate correlation function and the first to fifth and eighth to twelfth additional intermediate correlation functions. | 05-21-2015 |
20150139282 | METHOD FOR GENERATING BINARY OFFSET CARRIER CORRELATION FUNCTION BASED ON LOCAL SIGNALS, APPARATUS FOR TRACKING BINARY OFFSET CARRIER SIGNAL, AND SPREAD SPECTRUM SIGNAL RECEIVER SYSTEM - A method of generating a correlation function used to track a code phase delay value for a local code, in a spread spectrum signal receiver system, to be correlated with a received cosine or sine BOC-modulated signal, in which plurality of pulses successively occur in a single period of a spreading code chip is presented. The Method may include generating a local signal pair having a phase delay value based on a first and second local signal pair defined by first and last pulses of a signal pulse train, received during a single period of a sub-carrier of the received signal, and a given main peak shape parameter, generating a sub-correlation function pair by performing correlation operations of the received signal and the local signal pair with respect to a total time and generating a main correlation function having only a main peak by performing an elimination operation of the sub-correlation function pair. | 05-21-2015 |
20150155908 | METHOD FOR GENERATING UNAMBIGUOUS CORRELATION FUNCTION FOR CBOC(6,1,1/11) SIGNAL BASED ON MULTI STAGE COMPOSITION OF PARTIAL CORRELATION FUNCTIONS, APPARATUS FOR TRACKING CBOC SIGNALS AND SATELLITE NAVIGATION SIGNAL RECEIVER SYSTEM - A method of generating a correlation function for a CBOC(6,1,1/11) signal includes generating a first correlation function by performing a first elimination operation on a first and twelfth partial correlation function pair of 12 partial correlation functions, generating a fourth correlation function by performing a first elimination operation between second and third correlation functions that are generated by performing a second elimination operation between two difference functions between sixth and seventh partial correlation functions and the first correlation function, and generating a main correlation function by summing resulting waveforms that are generated by performing a first elimination operation between each of the 12 partial correlation functions and the fourth correlation function or by performing a first elimination operation between each of the remaining 8 partial correlation functions, excluding first, sixth, seventh and twelfth partial correlation functions from the 12 partial correlation functions, and the fourth correlation function. The first elimination operation satisfies algebraic relations in which |A|+|B|−|A−B|=0 if real numbers A and B satisfy AB≦0 and |A|+|B|−|A−B|>0 if real numbers A and B satisfy AB>0. The second elimination operation performs |A+B|−|A| with respect to real numbers A and B. | 06-04-2015 |
20150222415 | METHOD FOR GENERATING UNAMBIGUOUS CORRELATION FUNCTION FOR TMBOC(6,1,4/33) SIGNAL BASED ON EQUALLY SPLIT PARTIAL CORRELATION FUNCTIONS, APPARATUS FOR TRACKING TMBOC SIGNALS AND SATELLITE NAVIGATION SIGNAL RECEIVER SYSTEM - A method of generating the correlation function of a TMBOC(6,1,4/33) signal according to the present invention includes generating a signal delayed based on a phase delay 2 with respect to a signal pulse train of a TMBOC(6,1,4/33)-modulated received signal, generating 12 partial correlation functions by performing the autocorrelation operation of the received signal and the delayed signal with respect to a total time T(OT) , generating a sub-correlation function by performing an elimination operation of sixth and seventh partial correlation functions, and generating a main correlation function by summing results obtained by performing elimination operations between the remaining 10 partial correlation functions, excluding the sixth and seventh early partial correlation functions from the 12 partial correlation functions, and the sub-correlation function. The elimination operation is an operation satisfying algebraic relations in which |A|+|B|−|A−B|=0 when real numbers A and B are AB≦0 and |A|+|B|−|A−B|>0 when the real numbers A and B are AB>0 . | 08-06-2015 |
Patent application number | Description | Published |
20110170344 | SEMICONDUCTOR DEVICE INCLUDING SUB WORD LINE DRIVER - A semiconductor device includes a sub word line driver. A first sub word line and a second sub word line transmit an operation signal to a memory cell. A main word line optionally sends the operation signal to the first sub word line and the second sub word line. A switching transistor is disposed between the first sub word line and the second sub word line. A gate of the switching transistor is connected the main word line. | 07-14-2011 |
20110198700 | SEMICONDUCTOR DEVICES WITH PERIPHERAL REGION INSERTION PATTERNS AND METHODS OF FABRICATING THE SAME - A semiconductor device includes a substrate including a memory cell region and a peripheral region and a field pattern including an insulating region disposed on a nitride liner in a trench in the substrate adjacent an active region. The field pattern and the active region extend in parallel through the cell and peripheral regions. The device also includes a transistor in the peripheral region including a source/drain region in the active region. The device further includes an insertion pattern including an elongate conductive region disposed in the substrate and extending along a boundary between the field pattern and the active region in the peripheral region. Fabrication methods are also described. | 08-18-2011 |
20110241099 | SEMICONDUCTOR DEVICE INCLUDING TRANSISTOR AND FUSE CIRCUIT AND SEMICONDUCTOR MODULE INCLUDING THE SAME - A semiconductor device is disclosed. The semiconductor device includes a semiconductor substrate, a first node impurity region, a second node impurity region, a third node impurity region, and an insulating layer. The first through third node impurity regions are disposed in the semiconductor substrate. Each of the first through third node impurity regions has a longitudinal length, a transverse length and a thickness respectively corresponding to first through third directions, which are perpendicular with respect to each other. The first node impurity region is parallel to the second and third node impurity regions, which are disposed in the substantially same line. The insulating layer is located between the first through third node impurity regions in the semiconductor substrate. | 10-06-2011 |
20120001271 | GATE ELECTRODE AND GATE CONTACT PLUG LAYOUTS FOR INTEGRATED CIRCUIT FIELD EFFECT TRANSISTORS - A four transistor layout can include an isolation region that defines an active region, the active region extending along first and second different directions. A common source region of the four transistors extends from a center of the active region along both the first and second directions to define four quadrants of the active region that are outside the common source region. Four drain regions are provided, a respective one of which is in a respective one of the four quadrants and spaced apart from the common source region. Finally, four gate electrodes are provided, a respective one of which is in a respective one of the four quadrants between the common source region and a respective one of the four drain regions. A respective gate electrode includes a vertex and first and second extending portions, the first extending portions extending from the vertex along the first direction and the second extending portions extending from the vertex along the second direction. | 01-05-2012 |
20130279275 | SEMICONDUCTOR DEVICE - A semiconductor memory device includes a bit line connected to a memory cell; an input/output line configured to input a data signal to the memory cell during a writing operation and to output a data signal stored in the memory cell during a reading operation; and a column select transistor including a first source/drain connected to the bit line and a second source/drain connected to the input/output line, wherein a resistance of the first source/drain is smaller than a resistance of the second source/drain. | 10-24-2013 |
20140353768 | GATE ELECTRODE AND GATE CONTACT PLUG LAYOUTS FOR INTEGRATED CIRCUIT FIELD EFFECT TRANSISTORS - A four transistor layout can include an isolation region that defines an active region, the active region extending along first and second different directions. A common source region of the four transistors extends from a center of the active region along both the first and second directions to define four quadrants of the active region that are outside the common source region. Four drain regions are provided, a respective one of which is in a respective one of the four quadrants and spaced apart from the common source region. Finally, four gate electrodes are provided, a respective one of which is in a respective one of the four quadrants between the common source region and a respective one of the four drain regions. A respective gate electrode includes a vertex and first and second extending portions, the first extending portions extending from the vertex along the first direction and the second extending portions extending from the vertex along the second direction. | 12-04-2014 |
Patent application number | Description | Published |
20080199744 | Hydrogen generating apparatus, fuel cell power generation system, method of controlling hydrogen generating quantity and recorded medium recorded program performing the same - The present invention discloses a hydrogen generating apparatus that is capable of controlling the amount of hydrogen generation. The hydrogen generating apparatus in accordance with an embodiment of the present invention has an electrolyzer, which is filled with an aqueous electrolyte solution containing hydrogen ions, a first electrode, which is accommodated in the electrolyzer, is submerged in the aqueous electrolyte solution, and generates electrons, a second electrode, which is accommodated in the electrolyzer, is submerged in the aqueous electrolyte solution, and receives the electrons to generate hydrogen, a switch, which is located between the first electrode and the second electrode, a flow rate meter, which measures an amount of hydrogen generation in the second electrode, and a switch controller, which receives a set value, compares the amount of hydrogen generation measured by the flow rate meter with the set value, and controls an on/off status of the switch. The amount of hydrogen generation can be controlled by use of on/off time and/or on/of frequency of the switch. | 08-21-2008 |
20080213642 | Hydrogen generating apparatus and fuel cell power generation system controlling amount of hydrogen generation - Hydrogen generating apparatus that is capable of controlling the amount of hydrogen generation. The hydrogen generating apparatus has an electrolyzer, a first electrode, a second electrode, a switch, which is located between the first electrode and the second electrode, a flow rate meter, which measures an amount of hydrogen generation in the second electrode, and a switch controller, which receives a set value, compares the amount of hydrogen generation measured by the flow rate meter with the set value, and controls an on/off status of the switch. The amount of hydrogen generation can be controlled by use of on/off time and/or on/of frequency of the switch. | 09-04-2008 |
20110104579 | Fuel cell power generation system, method of controlling hydrogen generating quantity and recorded medium recorded program performing the same - A fuel cell power generation system including: a hydrogen generating apparatus, controlling an amount of hydrogen generation by controlling an on/off status of a switch connected between electrodes; and a fuel cell, being supplied with hydrogen generated by the hydrogen generating apparatus and producing a direct current by converting chemical energy of the hydrogen to electrical energy. The hydrogen generating apparatus used in the system preferably includes an electrolyzer, filled with an aqueous electrolyte solution containing hydrogen ions; a first electrode, accommodated in the electrolyzer, submerged in the aqueous electrolyte solution, and generating electrons; a second electrode, accommodated in the electrolyzer, submerged in the aqueous electrolyte solution, receiving the electrons to generate hydrogen; a switch, located between the first electrode and the second electrode; a meter, measuring an amount of hydrogen generation or an output of a fuel cell; and a switch controller, receiving a set value, comparing the amount of hydrogen generation or the output of the fuel cell measured by the meter with the set value, and controlling an on/off status of the switch. | 05-05-2011 |
Patent application number | Description | Published |
20140063617 | LENS MODULE - A lens module is disclosed. A lens module in accordance with an embodiment of the present invention includes a first lens, a second lens, a third lens, and a fourth lens that are arranged successively in the direction from an object side to an imaging surface, wherein the first lens has a positive refractive index, the second lens a negative refractive index, the third lens a positive refractive index, and the fourth lens a negative refractive index, wherein the third lens includes a first sub-lens, a second sub-lens, and a third sub-lens that have a positive refractive index, wherein the fourth lens includes a center portion surrounding an optical axis and a peripheral portion surrounding the center portion, wherein the center portion on the imaging surface side is formed in a concave shape and the peripheral portion on the imaging surface side is formed in a convex shape. | 03-06-2014 |
20140368929 | OPTICAL SYSTEM FOR CAMERA - Disclosed herein is an optical system for a camera. The optical system for a camera includes: a first lens having positive refractive power and a meniscus shape concave toward an image; a second lens having negative refractive power and a shape concave toward the image; a third lens having the positive refractive power and a shape convex toward an object; a fourth lens having the positive refractive power and a shape convex toward the image; and a fifth lens having the negative refractive power, a shape convex toward the object and concave to the image, and one or more inflection point provided on an image surface. | 12-18-2014 |
20150131167 | LENS MODULE - A lens module may include a first lens having positive refractive power, a second lens having positive refractive power, a third lens having refractive power, a fourth lens having positive refractive power, a fifth lens having negative refractive power, and a sixth lens having negative refractive power and having one or more inflection points formed on an image-side surface thereof. An overall focal length of the lens module f and a focal length of the first lens f1 may satisfy the following Conditional Expression: | 05-14-2015 |
20150131172 | LENS MODULE - A lens module may include a first lens having positive refractive power, a second lens having positive refractive power, a third lens having refractive power, a fourth lens having positive refractive power, a fifth lens having negative refractive power, and a sixth lens having negative refractive power and having one or more inflection points formed on an image-side surface thereof. An overall focal length of the lens module f and a focal length of the first lens f1 may satisfy the following Conditional Expression: | 05-14-2015 |
20150277083 | LENS MODULE - A lens module may include a first lens having positive refractive power; a second lens having positive refractive power; a third lens having negative refractive power; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having negative refractive power; and a seventh lens having refractive power and one or more inflection points formed in locations thereof not crossing an optical axis, wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are disposed in a sequential order from the first lens to the seventh lens. | 10-01-2015 |
20150309288 | OPTICAL SYSTEM FOR CAMERA - Disclosed herein is an optical system for a camera. The optical system for a camera includes: a first lens having positive refractive power and a meniscus shape concave toward an image; a second lens having negative refractive power and a shape concave toward the image; a third lens having the positive refractive power and a shape convex toward an object; a fourth lens having the positive refractive power and a shape convex toward the image; and a fifth lens having the negative refractive power, a shape convex toward the object and concave to the image, and one or more inflection point provided on an image surface. | 10-29-2015 |
20160085058 | LENS MODULE - A lens module may include a first lens having positive refractive power; a second lens having positive refractive power; a third lens having negative refractive power; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having negative refractive power; and a seventh lens having refractive power and one or more inflection points formed in locations thereof not crossing an optical axis, wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are disposed in a sequential order from the first lens to the seventh lens. | 03-24-2016 |
Patent application number | Description | Published |
20080218440 | Plasma Display Panel Driving Method and Plasma Display Device - A PDP driving method. A falling ramp voltage is applied to a scan electrode so as to reset a state of wall charges of a discharge cell during a reset period. In this instance, a sustain electrode is maintained at a high voltage during an initial period for applying the falling ramp voltage, and the voltage at the sustain electrode is reduced to a normal voltage at a latter part of the period for applying the falling ramp voltage. Accordingly, the voltage applied to an address electrode is reduced in an address period since an erased amount of the wall charges of the address electrode is reduced during the reset period. | 09-11-2008 |
20090073151 | Plasma Display Panel Driving Method and Plasma Display - In a plasma display panel driving method, a final voltage of a falling ramp voltage is reduced to a voltage for firing a discharge at all the discharge cells in a reset period. A difference between a voltage at an address electrode of a discharge cell to be selected and a voltage applied to a scan electrode is established to be greater than a maximum discharge firing voltage in an address period. A voltage greater than a sustain voltage is applied to the scan electrode so as to convert positive wall charges which can be formed on the scan electrode of a discharge cell which is not selected in the address period into negative wall charges. | 03-19-2009 |
20100085334 | PLASMA DISPLAY DEVICE - A plasma display device includes a plasma display panel, a chassis base and circuit board assemblies mounted on the chassis base. The plasma display panel includes: a front substrate, a rear substrate, and a plurality of electrodes between the front and rear substrates; and an electrode pattern formed on the rear substrate and separate from the plurality of electrodes. The chassis base is adjacent the rear substrate. The electrode pattern is configured for transmitting power and signals utilized to drive the plurality of electrodes from at least one of the plurality of circuit board assemblies. | 04-08-2010 |
20100171684 | PLASMA DISPLAY DEVICE - A plasma display device wherein a circuit pattern is formed on a substrate of one end of an address electrode of a plasma display panel, the circuit pattern is connected with a logic board assembly by a tape carrier package, and the tape carrier package is stably held. The plasma display device includes a plasma display panel having a pair of substrates. A chassis base is used to support the plasma display panel. A printed circuit board assembly is mounted on the chassis base. Circuit patterns that include terminals are formed on the substrate formed with address electrodes and signal lines applying power and control signals. A first tape carrier package having a first end connected to the terminals and a second end forming a free end and that mounts a drive IC between the first end and the second end. A second tape carrier package connects the signal line with the printed circuit board assembly. A cover plate that covers the first tape carrier package and the second tape carrier package. | 07-08-2010 |
Patent application number | Description | Published |
20100123158 | Light emitting device and method of manufacturing the same - Provided is a light emitting diode (LED) manufactured by using a wafer bonding method and a method of manufacturing a LED by using a wafer bonding method. The wafer bonding method may include interposing a stress relaxation layer formed of a metal between a semiconductor layer and a bonding substrate. When the stress relaxation layer is used, stress between the bonding substrate and a growth substrate may be offset due to the flexibility of metal, and accordingly, bending or warpage of the bonding substrate may be reduced or prevented. | 05-20-2010 |
20100124798 | Method of manufacturing light emitting device - Provided is a method of manufacturing a light emitting device from a large-area bonding wafer by using a wafer bonding method using. The method may include forming a plurality of semiconductor layers, each having an active region for emitting light, on a plurality of growth substrates. The method may also include arranging the plurality of growth substrates on which the semiconductor layers are formed on one bonding substrate and simultaneously processing each of the semiconductor layers formed on each of the growth substrates through subsequent processes. The bonding wafer may be formed of a material that reduces or prevents bending or warping due to a difference of thermal expansion coefficients between a wafer material, such as sapphire, and a bonding wafer. According to the above method, because a plurality of wafers may be processed by one process, mass production of LEDs may be possible which may reduce manufacturing costs. | 05-20-2010 |
20110127489 | Light emitting device and method of manufacturing the same - Example embodiments relate to a light emitting device and a method of fabricating the light emitting device. The light emitting device may include an n-type clad layer including a plurality of nitride semiconductor layers, at least one interlayer disposed between the plurality of nitride semiconductor layers, a via hole in which a first electrode is formed, a p-type clad layer, and an active layer between the n-type clad layer and the p-type clad layer. | 06-02-2011 |
20110272712 | Vertical light-emitting devices having patterned emitting unit and methods of manufacturing the same - Example embodiments are directed to a light-emitting device including a patterned emitting unit and a method of manufacturing the light-emitting device. The light-emitting device includes a first electrode on a top of a semiconductor layer, and a second electrode on a bottom of the semiconductor layer, wherein the semiconductor layer is a pattern array formed of a plurality of stacks. A space between the plurality of stacks is filled with an insulating layer, and the first electrode is on the insulating layer. | 11-10-2011 |
20110291120 | Light Emitting Devices Using Connection Structures And Methods Of Manufacturing The Same - Example embodiments of the present invention relate to a light emitting device having a connection structure and a method of manufacturing the light emitting device. The method of manufacturing may include forming a light emitting region and electrode layers on a substrate in which a plurality of cell regions and a bridge for partially connecting the cell regions are disposed, thereby providing a light emitting device that controls stress with relative ease and integrates electrical connections between the cell regions. | 12-01-2011 |
20110300654 | Method of manufacturing semiconductor light emitting device - Provided is a method of manufacturing semiconductor light emitting devices including: forming light emitting structures by sequentially depositing a first material layer, an active layer and a second material layer; forming the roughness pattern on a region of the bottom of a substrate except at least a cleaving region for forming cleaving planes; and forming n-electrodes. | 12-08-2011 |
20120007143 | SUBSTRATE STRUCTURE AND METHOD OF MANUFACTURING THE SAME - A substrate structure and method of manufacturing the same are disclosed. The substrate structure may includes a substrate on which a plurality of protrusions are formed on one surface thereof and a plurality of buffer layers formed according to a predetermined pattern and formed spaced apart from each other on the plurality of protrusions. | 01-12-2012 |
20120018734 | Light-emitting devices and methods of manufacturing the same - Example embodiments are directed to light-emitting devices (LEDs) and methods of manufacturing the same. The LED includes a first semiconductor layer; a second semiconductor layer; an active layer formed between the first and second semiconductor layers; and an emission pattern layer including a plurality of layers on the first semiconductor layer, the emission pattern including an emission pattern for externally emitting light generated from the active layer. | 01-26-2012 |
20120153261 | Semiconductor Device And Method Of Manufacturing The Same - Example embodiments relate to a semiconductor device and a method of manufacturing the semiconductor device. The semiconductor device may include a pre-seeding layer and a nucleation layer. The pre-seeding layer may include a first material for pre-seeding and a second material for masking so as to reduce tensile stress. | 06-21-2012 |
20120175662 | VERTICAL LIGHT EMITTING DEVICE - According to an example embodiment, a vertical light emitting device (LED) includes a semiconductor layer including an active layer configured to emitting light, a first electrode on a first side of the semiconductor layer, and a second electrode on a second side of the semiconductor layer opposite to the first electrode. At least one of the first and second electrodes includes a metal electrode pattern and a transparent electrode pattern. The transparent electrode pattern is in a region between segment electrodes of the metal electrode pattern. The transparent electrode pattern is electrically connected to the metal electrode pattern. | 07-12-2012 |
20130069074 | POWER DEVICE AND METHOD OF MANUFACTURING THE SAME - According to an example embodiment, a power device includes a substrate, a nitride-containing stack on the substrate, and an electric field dispersion unit. Source, drain, and gate electrodes are on the nitride-containing stack. The nitride-containing stack includes a first region that is configured to generate a larger electric field than that of a second region of the nitride-containing stack. The electric field dispersion unit may be between the substrate and the first region of the nitride-containing stack. | 03-21-2013 |
20130139966 | JIG FOR USE IN ETCHING AND CHEMICAL LIFT-OFF APPARATUS INCLUDING THE SAME - A jig for use in etching supports an etching target while an etching process is performed and surrounds a remaining region of the etching target except for a portion of the etching target, so as to expose the portion of the etching target. Accordingly, a stable support of the etching target during the etching process may be provided, and thus an etching of an undesired region may be prevented, and a stable production yield may be accomplished. | 06-06-2013 |
20130140567 | SILICON SUBSTRATE, EPITAXIAL STRUCTURE INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE SILICON SUBSTRATE - Crack formation and propagation in a silicon substrate may be reduced by forming a crack reducing portion. The silicon substrate includes a silicon main portion and a silicon edge portion formed around the silicon main portion. The crack reducing portion is formed on the silicon edge portion of the silicon substrate such that the directions of crystal faces in the crack reducing portion are randomly oriented. | 06-06-2013 |
20140014990 | LIGHT-EMITTING DEVICE PACKAGES AND METHODS OF MANUFACTURING THE SAME - Lights-emitting device (LED) packages, and methods of manufacturing the same, include at least one light-emitting structure. The at least one light-emitting structure includes a first compound semiconductor layer, an active layer, and a second compound semiconductor layer that are sequentially stacked, at least one first metal layer connected to the first compound semiconductor layer, a second metal layer connected to the second compound semiconductor layer, a substrate having a conductive bonding layer on a first surface of the substrate, and a bonding metal layer configured for eutectic bonding between the at least one first metal layer and the conductive bonding layer. | 01-16-2014 |
20140057381 | VERTICAL LIGHT-EMITTING DEVICES HAVING PATTERNED EMITTING UNIT AND METHODS OF MANUFACTURING THE SAME - Example embodiments are directed to a light-emitting device including a patterned emitting unit and a method of manufacturing the light-emitting device. The light-emitting device includes a first electrode on a top of a semiconductor layer, and a second electrode on a bottom of the semiconductor layer, wherein the semiconductor layer is a pattern array formed of a plurality of stacks. A space between the plurality of stacks is filled with an insulating layer, and the first electrode is on the insulating layer. | 02-27-2014 |
20140113437 | SUBSTRATE STRUCTURE AND METHOD OF MANUFACTURING THE SAME - A substrate structure and method of manufacturing the same are disclosed. The substrate structure may includes a substrate on which a plurality of protrusions are formed on one surface thereof and a plurality of buffer layers formed according to a predetermined pattern and formed spaced apart from each other on the plurality of protrusions. | 04-24-2014 |
20140124818 | LIGHT EMITTING DEVICE AND METHOD OF FABRICATING THE SAME - A light emitting device (LED) includes a stress control layer having a compressive stress on a substrate, a bonding layer on the stress control layer, a semiconductor layer on the bonding layer and including an active region for emitting light on the bonding layer, a first electrode on a lower surface of the substrate, and a second electrode on the semiconductor layer. The compressive stress of the stress control layer is between about 1 and about 20 GPa. | 05-08-2014 |
20150093848 | SEMICONDUCTOR LIGHT EMITTING DEVICES HAVING AN UNEVEN EMISSION PATTERN LAYER AND METHODS OF MANUFACTURING THE SAME - Example embodiments are directed to light-emitting devices (LEDs) and methods of manufacturing the same. The LED includes a first semiconductor layer; a second semiconductor layer; an active layer formed between the first and second semiconductor layers; and an emission pattern layer including a plurality of layers on the first semiconductor layer, the emission pattern including an emission pattern for externally emitting light generated from the active layer. | 04-02-2015 |
20150111369 | SEMICONDUCTOR BUFFER STRUCTURE, SEMICONDUCTOR DEVICE INCLUDING THE SEMICONDUCTOR BUFFER STRUCTURE, AND METHOD OF MANUFACTURING THE SEMICONDUCTOR DEVICE USING THE SEMICONDUCTOR BUFFER STRUCTURE - A semiconductor buffer structure includes a silicon substrate, a nucleation layer formed on the silicon substrate, and a buffer layer formed on the nucleation layer. The buffer layer includes a first layer formed of a nitride semiconductor material having a uniform composition rate, a second layer formed of the same material as the nucleation layer on the first layer, and a third layer formed of the same material with the same composition ratio as the first layer on the second layer. | 04-23-2015 |
Patent application number | Description | Published |
20130101666 | LIPOSOME INCLUDING ELASTIN-LIKE POLYPEPTIDE CONJUGATED TO MOIETY CONTAINING HYDROPHOBIC GROUP, CHEMOSENSITIZER AND ANTICANCER AGENT AND USE THEREOF - A liposome including a lipid bilayer, an elastin-like polypeptide (ELP) conjugated to a hydrophobic moiety; a chemosensitizer; and an anticancer agent, a pharmaceutical composition including the same, and a method of delivering a chemosensitizer and an anticancer agent to a target site of a subject by using the liposome. | 04-25-2013 |
20130102898 | LIPOSOME INCLUDING ELASTIN-LIKE POLYPEPTIDES AND USE THEREOF - A liposome comprising elastin-like polypeptides, a pharmaceutical composition comprising the liposome, and a method of delivering active agents to a target site using the liposome. | 04-25-2013 |
20130102993 | LIPOSOME COMPRISING ELASTIN-LIKE POLYPEPTIDE AND TUMOR CELL TARGETING MATERIAL AND USE THEREOF - A liposome including an elastin-like polypeptide (ELP) and a tumor cell targeting material, a pharmaceutical composition including the liposome, and a method of delivering an active agent to a target site using the liposome. | 04-25-2013 |
20130197359 | SOLID LIPID NANOPARTICLES INCLUDING ELASTIN-LIKE POLYPEPTIDES AND USE THEREOF - Solid lipid nanoparticles (SLNs) including elastin-like polypeptides, compositions comprising the SLNs, and uses thereof are provided. | 08-01-2013 |
20150071950 | C-MET TARGETING COMPOUND-BIOACTIVE MATERIAL CONJUGATE AND USE THEREOF - Disclosed is a conjugate in which a c-Met targeting compound and a bioactive material are chemically conjugated with each other, and methods of use thereof. | 03-12-2015 |
20150335669 | CHEMICALLY MODIFIED TARGETING PROTEIN AND USE THEREOF - Provided is a chemically modified targeting protein, a pharmaceutical composition including the chemically modified targeting protein, a conjugate including the chemically modified targeting protein and a drug, and methods for preparing the same. | 11-26-2015 |
Patent application number | Description | Published |
20090129809 | APPARATUS TO GENERATE HIGH VOLTAGE BY DIGITAL CONTROL AND METHOD THEREOF - An apparatus to generate a high voltage includes a switching part to control a voltage induced in a secondary coil of a power transforming part, by interrupting a current in a primary coil of the power transforming part, a digital controlling part to control the interruption operation of the switching part according to supplied control data. The switching part, the digital interfacing part and the digital controlling part may be embodied in an ASIC chip (application-specific integrated circuit). An optimum control according to an output state of the apparatus is easily achieved, manufacturing time for tuning each parameter is reduced and heat generation in the apparatus is reduced. | 05-21-2009 |
20090317111 | FIXING DEVICE USABLE WITH AN IMAGE FORMING APPARATUS - A fixing device usable with an image forming apparatus having a fixing roller to fix a toner on a recording medium, a heater to heat the fixing roller, and an alternating current (AC) power source to supply an AC electric power to the heater may include a power converting part to convert the AC electric power of the AC power source and to supply the converted power to the heater; a relay including a first relay contact point disposed on a first AC power supply line between the AC power source and the power converting part and a relay coil to open and close the first relay contact point, the relay selectively supplying the AC electric power from the AC power source to the heater and the power converting part; a direct current (DC) power supplier to supply a DC power to the relay coil; and a thermoswitch interposed between the relay coil and the DC power supplier and mounted adjacent to the fixing roller so as to interrupt the DC power from the DC power supplier to the relay coil, when a temperature of the fixing roller exceeds a threshold temperature, causing the relay coil to open the first relay contact point. | 12-24-2009 |
20090317112 | FIXING DEVICE USABLE WITH AN IMAGE FORMING APPARATUS - An image forming apparatus includes a fixing roller to fix a toner on a recording medium; a heater to heat the fixing roller; an alternating current (AC) power source to generate an AC electric power such that the heater heats the fixing roller according to the AC electric power; a unit interposed between the heater and the AC power source to selectively supply the AC electric power from the AC power source to the heater so as to control the heater to heat the fixing roller; a relay including a first relay contact point disposed on a first AC power supply line between the AC power source and the unit and a relay coil to open and close the first relay contact point; the relay selectively supplying the AC electric power from AC power source to the heater and the power control switch; a direct current (DC) power supplier to supply a DC power to the relay coil; and a thermoswitch interposed on a DC power supply line between the DC power supplier and the relay coil to control the supply of the AC electric power from the AC power source to the heater and the unit according to an temperature of the fixing roller. | 12-24-2009 |
20100046257 | Apparatus and method for controlling power converter - A power converter controlling apparatus that can prevent burnout caused by overcurrent and/or overvoltage generated by low power index operation or output short circuit in a high frequency power converter employing a digital controlling method, and a method thereof. The power converter controlling apparatus includes a digital controller which outputs a gate signal for controlling intermittent operation of a predetermined switch based on inputted control data, a detector which generates a detection signal in response to generation of overcurrent and/or overvoltage, and a registration maintenance unit for maintaining a state where the output of the gate signal is shut off, when the detection signal is generated. | 02-25-2010 |
20100247181 | Device for fusing toner on print medium - A device for fusing a predetermined toner image on a paper and which electrically insulates a heating body of a fusing unit from a power supply unit by heating the heating body using an induced current generated by a transformer. The fusing device includes an insulation unit for generating an induced current in response to an alternating current, a heating body heated by the generated induced current, a toner fusing unit which fuses the toner image on the paper using the heat received from the heating body, and a tube-expansion adhesion portion closely adhering the heating body to the toner fusing unit using a predetermined tube-expansion pressure. | 09-30-2010 |
20110013922 | POWER CONTROL METHOD AND APPARATUS TO HEAT A HEATING ROLLER - A power control method and apparatus to heat a heating roller. The power control method includes heating a heating roller provided to fix a toner image of print data in an image forming apparatus, the heating roller having a heating resistor to receive roller power, the power control method includes gradually increasing a maximum level of a source power supplied from an external source up to a specific maximum supply level, and supplying the maximum source power to the heating resistor as the roller power while gradually increasing the maximum level of the source power up to a specific maximum supply level, measuring a surface temperature of the heating roller, and further supplying the source power of which maximum level is equal to the maximum supply level to the heating resistor as the roller power until the measured surface temperature reaches a specific fixing target temperature, and fixing the toner image onto a fed printing medium. Supplying the source power is performed right after the image forming apparatus is turned on, or right after the image forming apparatus is switched from a standby mode to a print mode. | 01-20-2011 |
20110091233 | APPARATUS AND METHOD OF CONTROLLING POWER SUPPLY TO HEATING ROLLER AND PHASE CONTROL CIRCUIT CORRESPONDING TO THE APPARATUS AND METHOD - A method and an apparatus to control power supplied to a heating roller and a phase control circuit corresponding to the method or the apparatus. The phase control circuit may include an examination unit to compare levels of a sine wave having a predetermined first period and a switching signal to increase and decrease repeatedly according to a predetermined second period, and a phase control signal generation unit to generate a phase control signal having a non-zero in intervals of time sections including a time when levels of the switching signal and the sine wave which is in a decreasing section are equal to each other during a time period when the level of the sine wave is zero, and a time when levels of the switching signal and the sine wave which is in an increasing section are equal to each other during a time period when the level of the sine wave is zero. | 04-21-2011 |
20110255894 | FIXING DEVICE USABLE WITH AN IMAGE FORMING APPARATUS - An image forming apparatus includes a fixing roller to fix a toner on a recording medium; a heater to heat the fixing roller; an alternating current (AC) power source to generate an AC electric power such that the heater heats the fixing roller according to the AC electric power; a unit interposed between the heater and the AC power source to selectively supply the AC electric power from the AC power source to the heater so as to control the heater to heat the fixing roller; a relay including a first relay contact point disposed on a first AC power supply line between the AC power source and the unit and a relay coil to open and close the first relay contact point; the relay selectively supplying the AC electric power from AC power source to the heater and the power control switch; a direct current (DC) power supplier to supply a DC power to the relay coil; and a thermoswitch interposed on a DC power supply line between the DC power supplier and the relay coil to control the supply of the AC electric power from the AC power source to the heater and the unit according to an temperature of the fixing roller. | 10-20-2011 |
20110262169 | POWER CONTROL METHOD AND APPARATUS TO HEAT A HEATING ROLLER - A power control method and apparatus to heat a heating roller includes heating a heating roller provided to fix a toner image of print data in an image forming apparatus, the heating roller having a heating resistor to receive roller power. The power control method includes gradually increasing a maximum level of a source power supplied from an external source up to a specific maximum supply level, and supplying the maximum source power to the heating resistor as the roller power while gradually increasing the maximum level of the source power up to a specific maximum supply level, measuring a surface temperature of the heating roller, and supplying the source power of which maximum level is equal to the maximum supply level to the heating resistor as the roller power until the measured surface temperature reaches a specific fixing target temperature, and fixing the toner image onto a printing medium. | 10-27-2011 |
20120207503 | POWER CONTROL METHOD AND APPARATUS TO HEAT A HEATING ROLLER - A power control method and apparatus to heat a heating roller includes heating a heating roller provided to fix a toner image of print data in an image forming apparatus, the heating roller having a heating resistor to receive roller power. The power control method includes gradually increasing a maximum level of a source power supplied from an external source up to a specific maximum supply level, and supplying the maximum source power to the heating resistor as the roller power while gradually increasing the maximum level of the source power up to a specific maximum supply level, measuring a surface temperature of the heating roller, and supplying the source power of which maximum level is equal to the maximum supply level to the heating resistor as the roller power until the measured surface temperature reaches a specific fixing target temperature, and fixing the toner image onto a printing medium. | 08-16-2012 |
20130156456 | APPARATUS AND METHOD OF CONTROLLING POWER SUPPLY TO HEATING ROLLER AND PHASE CONTROL CIRCUIT CORRESPONDING TO THE APPARATUS AND METHOD - A method and an apparatus to control power supplied to a heating roller and a phase control circuit corresponding to the method or the apparatus. The phase control circuit may include an examination unit to compare levels of a sine wave having a predetermined first period and a switching signal to increase and decrease repeatedly according to a predetermined second period, and a phase control signal generation unit to generate a phase control signal having a non-zero in intervals of time sections including a time when levels of the switching signal and the sine wave which is in a decreasing section are equal to each other during a time period when the level of the sine wave is zero, and a time when levels of the switching signal and the sine wave which is in an increasing section are equal to each other during a time period when the level of the sine wave is zero. | 06-20-2013 |
20130330098 | POWER CONTROL METHOD AND APPARATUS TO HEAT A HEATING ROLLER - A power control method and apparatus to heat a heating roller includes heating a heating roller provided to fix a toner image of print data in an image forming apparatus, the heating roller having a heating resistor to receive roller power. The power control method includes gradually increasing a maximum level of a source power supplied from an external source up to a specific maximum supply level, and supplying the maximum source power to the heating resistor as the roller power while gradually increasing the maximum level of the source power up to a specific maximum supply level, measuring a surface temperature of the heating roller, and supplying the source power of which maximum level is equal to the maximum supply level to the heating resistor as the roller power until the measured surface temperature reaches a specific fixing target temperature, and fixing the toner image onto a printing medium. | 12-12-2013 |
20140047495 | METHOD OF MANAGING THE STANDBY MODE OF A BROADCAST RECEIVING DEVICE BY EXTERNAL SIGNALING - A method for managing a broadcast receiving apparatus standby mode according to external signaling is provided. The method includes: generating a power management descriptor that a broadcast receiving apparatus refers to in order to perform a standby mode; and transmitting the generated power management descriptor to the broadcast receiving apparatus. Accordingly, since the broadcast receiving apparatus manages the standby mode more effectively, standby power consumed in the standby mode is further reduced and thus power saving effect can be achieved. | 02-13-2014 |
20140105624 | FIXING DEVICE USABLE WITH AN IMAGE FORMING APPARATUS - An image forming apparatus includes a fixing roller to fix a toner on a recording medium; a heater to heat the fixing roller; an alternating current (AC) power source to generate an AC electric power such that the heater heats the fixing roller according to the AC electric power; a unit interposed between the heater and the AC power source to selectively supply the AC electric power from the AC power source to the heater so as to control the heater to heat the fixing roller; a relay including a first relay contact point disposed on a first AC power supply line between the AC power source and the unit and a relay coil to open and close the first relay contact point; the relay selectively supplying the AC electric power from AC power source to the heater and the power control switch; a direct current (DC) power supplier to supply a DC power to the relay coil; and a thermoswitch interposed on a DC power supply line between the DC power supplier and the relay coil to control the supply of the AC electric power from the AC power source to the heater and the unit according to an temperature of the fixing roller. | 04-17-2014 |
20140286654 | FIXING DEVICE USABLE WITH AN IMAGE FORMING APPARATUS - An image forming apparatus includes a fixing roller to fix a toner on a recording medium; a heater to heat the fixing roller; an alternating current (AC) power source to generate an AC electric power such that the heater heats the fixing roller according to the AC electric power; a unit interposed between the heater and the AC power source to selectively supply the AC electric power from the AC power source to the heater so as to control the heater to heat the fixing roller; a relay including a first relay contact point disposed on a first AC power supply line between the AC power source and the unit and a relay coil to open and close the first relay contact point; the relay selectively supplying the AC electric power from AC power source to the heater and the power control switch; a direct current (DC) power supplier to supply a DC power to the relay coil; and a thermoswitch interposed on a DC power supply line between the DC power supplier and the relay coil to control the supply of the AC electric power from the AC power source to the heater and the unit according to an temperature of the fixing roller. | 09-25-2014 |