Patent application number | Description | Published |
20090134917 | VOLTAGE DIVIDER HAVING VARIED OUTPUT LEVELS DEPENDING ON FREQUENCY AND PLL INCLUDING THE SAME - A voltage divider for dividing an input voltage includes a fixed resistor, a variable resistor, an input node and an output node. The fixed resistor has a fixed resistance value independent of an operating frequency, and includes at least one resistance device. The variable resistor has a variable resistance value that varies corresponding to a variation of the operating frequency. The input node receives the input voltage, and the output node outputs an output voltage, which includes the input voltage divided based on the fixed resistance value and the variable resistance value. | 05-28-2009 |
20100123498 | Phase locked loop circuit, method of operating phase locked loop circuit and semiconductor memory device including phase locked loop circuit - A phase locked loop circuit includes a delay compensation circuit and a phase change circuit. The delay compensation circuit is adapted to generate a delay clock signal by delaying a phase of a first output clock signal by a second phase, the phase of the first output clock signal having a phase leading a phase of an input clock signal by a first phase, and the second phase corresponding to a delay compensation time greater than a period of the input clock signal and greater than the first phase. The phase change circuit is adapted to change the second phase to the first phase and to generate a feedback clock signal having a phase synchronized with the phase of the input clock signal in response to the first phase, wherein the first phase is a phase corresponding to a remainder time resulting from the delay compensation time being divided by the period of the input clock, and wherein the quotient is an integer. | 05-20-2010 |
20100141311 | Phase-Locked Loop and Bias Generator - A phase-locked loop (PLL) having a bias generator capable of reducing noise is provided. In the PLL, a voltage controlled oscillator is driven using a regulator. The bias generator, which applies a bias voltage to the regulator, is configured to have opposite power noise characteristics to the power noise characteristics of the regulator, such that the occurrence of jitter in the PLL is reduced. | 06-10-2010 |
20100207673 | ASYMMETRIC CHARGE PUMP AND PHASE LOCKED LOOPS HAVING THE SAME - A charge pump includes a current source configured to generate a first current and a switch circuit including an output node and connected to the current source. The switch circuit is configured to be switched to provide one of the first current to the output node or discharge a second current from the output node according to a phase difference between a reference signal and a feedback signal. The switch circuit is further configured to compare a charge supplied to the output node and a charge discharged from the output node and to adjust an inflow time of the first current to the output node or an outflow time of the second current from the output node according to the comparison result. | 08-19-2010 |
20100259310 | DATA TRANSFER CIRCUIT AND METHOD WITH COMPENSATED CLOCK JITTER - A data I/O interface for an integrated circuit device includes a noise detector receiving a power supply voltage, detecting a power supply voltage noise component, and providing a clock delay control signal in response to detected power supply voltage noise component. The data I/O interface also includes a clock delay circuit providing a delayed clock signal in response to the clock delay control signal, and a data transfer circuit powered by the power supply voltage and providing output data synchronously with the delayed clock signal. | 10-14-2010 |
20100271887 | SEMICONDUCTOR MEMORY DEVICE COMPRISING VARIABLE DELAY UNIT - A semiconductor memory device comprises a variable delay unit and a data trainer. The variable delay unit is configured to generate a write data signal by delaying a write data driving signal by different amounts of time depending on whether the semiconductor memory device is in a data training mode or a normal operating mode, and further configured to generate a read data driving signal by delaying a read data signal by different amounts of time in the data training mode and the normal operating mode. The data trainer is configured to be activated in the data training mode, and while activated, receive the write data signal, compare the write data signal with a predetermined write pattern, perform a data training mode operation, and output the read data signal with a predetermined read pattern. | 10-28-2010 |
20110026334 | BIDIRECTIONAL EQUALIZER WITH CMOS INDUCTIVE BIAS CIRCUIT - An integrated circuit (IC) device, system and related method of communicating data are described. The IC device includes; a data port configured to provide output data to a channel and receive input data from the channel, an impedance matching circuit connected to the data port and configured to operate as an output driver circuit when the output data is being transmitted and as an on die termination circuit when the input data is being received, and an active inductive bias circuit connected to the data port in parallel with the impedance matching circuit, and configured to adjust the impedance of the data port to the channel during transmission of the output data as a function of output data frequency and adjust the impedance of the data port to the channel during receipt of the input data as a function of input data frequency. | 02-03-2011 |
20130009685 | DATA TRANSFER CIRCUIT AND METHOD WITH COMPENSATED CLOCK JITTER - A data I/O interface for an integrated circuit device includes a noise detector receiving a power supply voltage, detecting a power supply voltage noise component, and providing a clock delay control signal in response to detected power supply voltage noise component. The data I/O interface also includes a clock delay circuit providing a delayed clock signal in response to the clock delay control signal, and a data transfer circuit powered by the power supply voltage and providing output data synchronously with the delayed clock signal. | 01-10-2013 |
20160005452 | SEMICONDUCTOR MEMORY DEVICE FOR CONTROLLING HAVING DIFFERENT REFRESH OPERATION PERIODS FOR DIFFERENT SETS OF MEMORY CELLS - Provided is a semiconductor memory device for controlling a refresh operation of redundancy memory cells. The semiconductor memory device may include normal memory cells and redundancy memory cells that are used to repair normal memory cell(s) to which a defective cell is connected, and an error-correction code (ECC) memory cell row that stores parity bits for controlling the defective cell. Memory cells on the normal memory cell rows are refreshed during a first refresh cycle. Other memory cells on, such as redundancy memory cell rows, an edge memory cell row that is adjacent to the redundancy memory cell row(s) from among the normal memory cell rows, and/or the ECC memory cell row may be refreshed during a second refresh cycle that is different from the first refresh cycle. | 01-07-2016 |
Patent application number | Description | Published |
20100293216 | Modular multiplier apparatus with reduced critical path of arithmetic operation and method of reducing the critical path of arithmetic operation in arithmetic operation apparatus - Provided are a modular multiplier apparatus in which a value of a long path carry (LPC) is predicted to reduce a critical path of an arithmetic operation of Montgomery modular multiplication, and a method of reducing the critical path of the arithmetic operation. The modular multiplier apparatus for obtaining a quotient and a result of an arithmetic operation of modular multiplication by using a modulus and two arbitrary constants includes: a reduction unit for obtaining a short path carry (SPC) included when a result of a modular arithmetic operation is obtained at a current stage, by using a medium calculation result; a carry predictor for predicting a long path carry (LPC) included when the result of the modular arithmetic operation is obtained at the current stage, by using the medium calculation result; and an accumulator for accumulating the result of the modular arithmetic operation by using the SPC and the LPC, wherein the medium calculation result is obtained by adding a result of a modular arithmetic operation obtained at a previous stage and a partial product of the two constants obtained at the current stage. | 11-18-2010 |
20110231467 | MONTGOMERY MULTIPLIER HAVING EFFICIENT HARDWARE STRUCTURE - A radix-2k Montgomery multiplier including an input coefficient generation unit to receive a multiplier, a multiplicand, a modulus, a sum and a previous sum, to generate and to output a partial product and a multiple modulus by using at least one of the multiplier, the multiplicand, the modulus and the sum, and to divide and to output the received previous sum into units of k bits, an accumulator circuit to receive the partial product, the multiple modulus and k bits of the previous sum from the input coefficient generation unit, and to generate and to output a carry and a sum by summing the partial product, the multiple modulus and the previous sum, and a carry propagation adder (CPA) circuit to generate and to output an ultimate sum by using the carry and the sum. | 09-22-2011 |
20120096062 | MODULAR CALCULATOR, OPERATION METHOD OF THE MODULAR CALCULATOR, AND APPARATUSES HAVING THE SAME - A modular calculator and a method of performing a modular calculation are provided. The modular calculator includes a first register to receive and to store a first integer, a second register to receive and to store a second integer, a calculator connected to an output terminal of the first register and an output terminal of the second register, and a controller to determine an arithmetic operation of the calculator by referring to a sign of the first integer and a sign of the second integer and to control the calculator to perform the determined arithmetic operation on one of an addition and a subtraction of the first integer and the second integer and a modulus value. | 04-19-2012 |
20120197953 | MONTGOMERY INVERSE CALCULATION DEVICE AND METHOD OF CALCULATING MONTGOMERY INVERSE USING THE SAME - A Montgomery inverse calculation device includes a plurality of registers each storing a value of a variable, a modulus register storing a modulus, a multiplier performing multiplication on the modulus. A comparator compares the value of the variable stored in each of the registers with an output value of the multiplier and generates a plurality of control signals. A plurality of shifters shifts bits of a value of a variable stored in a corresponding register among the registers in response to at least one first control signal, and a quotient generation block calculates a quotient of mod 2m with respect to values output from some of the shifters in response to a second control signal. A calculation block calculates an updated value of an output value of each of the shifters using the quotient in response to at least one third control signal. | 08-02-2012 |
20130198253 | METHODS OF CALCULATING NEGATIVE INVERSE OF MODULUS - Provided is a method of calculating a negative inverse of a modulus, wherein the negative inverse, which is an essential element in Montgomery multiplication, is quickly obtained. The method includes setting a modulus, defining P obtained by converting the modulus to a negative number, and defining S obtained by subtracting 1 from P, and calculating a negative inverse of the modulus by using P and S. | 08-01-2013 |
Patent application number | Description | Published |
20080219079 | SEMICONDUCTOR MEMORY DEVICE AND OUTPUT DRIVE CIRCUIT THEREOF - An apparatus for supplying current to a semiconductor memory device. A current supply circuit supplies current to an input/output (I/O) drive circuit responsive to a pattern of data input to the I/O drive circuit. The current supply circuit configured to supply current generated by an external voltage to the I/O drive circuit responsive to a first pattern of data input to the I/O drive circuit, and to prevent the current generated by the external voltage from being supplied to the I/O drive circuit responsive to a second pattern of data input to the I/O drive circuit. | 09-11-2008 |
20090037787 | Apparatus and methods for autonomous testing of random number generators - Apparatus for testing a random number generator includes a random number generating unit that generates and outputs random numbers, and a switching unit that receives the random numbers from the random number generating unit and selectively transmits the random numbers in response to a switching control signal. A test unit performs a basic test on the random numbers to determine whether the transmitted random numbers are within a statistical range, controls the generation of random numbers according to a result of the basic test, and outputs the switching control signal based on whether a test suite is finished. Methods include performing a basic test on generated random numbers to determine whether the random numbers are within a statistical range, controlling the generation of random numbers in response to a result of the basic test and whether the basic test is finished, determining upon completion of the basic test if a test suite is finished, and if the test suite is finished, outputting the random numbers as final random numbers. | 02-05-2009 |
20100138467 | METHODS OF CALCULATING NEGATIVE INVERSE OF MODULUS - Provided is a method of calculating a negative inverse of a modulus, wherein the negative inverse, which is an essential element in Montgomery multiplication, is quickly obtained. The method includes setting a modulus, defining P obtained by converting the modulus to a negative number, and defining S obtained by subtracting 1 from P, and calculating a negative inverse of the modulus by using P and S. | 06-03-2010 |
Patent application number | Description | Published |
20090174620 | Phased array antenna having the highest efficiency at slant angle - The present invention relates to a phased array antenna, which is configured such that a plurality of radiation elements, having high reception efficiency for radio waves incident at a tilt angle, is arranged in a plurality of rows and columns, thus attaining high reception efficiency, and which adjusts radio waves, incident through a radome for protecting the antenna, to a desired tilt angle, thus further increasing radio wave reception efficiency. | 07-09-2009 |
20100117921 | ORGANIC CONNECTING APPARATUS OF RECEIVING SET FOR A CAR - Disclosed herein is an integrated connection apparatus for the receivers of a car. The integrated connection apparatus for the receivers of a car, in which two or more receivers are installed in the car, a number of antennas equal to the number of the receivers are installed, and the receivers and the antennas are electrically connected to each other, includes an antenna filtering unit connected to the plurality of antennas and configured to filter radio wave signals, received through the respective antennas, for respective frequency bands, an integrated cable connected to the filtering unit, and configured to provide a path for collecting signals obtained through filtering and transmitting the signals to a receiver side, and a receiver filtering unit connected to the integrated cable, and configured to classify the signals, transmitted through the integrated cable, into signals suitable for the respective receivers and transmit them. | 05-13-2010 |
Patent application number | Description | Published |
20130056448 | WIRE BONDING SYSTEM FOR SEMICONDUCTOR PACKAGE - A wire bonding system of a semiconductor package comprising a wire feeding device for positioning a wire at a ball formation position, a laser beam generation unit for generating a carbon dioxide laser beam, and a laser beam guiding unit for directing the laser beam at the ball formation position to form a ball at the wire. Accordingly, moldability and producibility of the ball formed on the wire may be improved. Also, electrical properties at a section of the wire are modified so as to minimize a loop height of the wire. | 03-07-2013 |
20130109438 | MOBILE TERMINAL WITH DISPLAY DEVICES AND METHOD OF OPERATING THE SAME | 05-02-2013 |
20130221071 | CAPILLARY EXCHANGE SYSTEM OF SEMICONDUCTOR WIRE BONDING - A capillary exchange system of a semiconductor wire bonding includes a wire bond unit having a chuck that includes a holding portion for holding a capillary for semiconductor wire bonding, a holding release guide unit for mechanically acting on the chuck of the wire bond unit to allow the capillary to be held by the holding portion or released from the holding portion, and a capillary exchange unit for separating the capillary from the chuck of the wire bond unit and installing a new capillary in the chuck in cooperation with the holding release guide unit. | 08-29-2013 |
20140299269 | JIG ASSEMBLY, LAMINATING APPARATUS, AND LAMINATING METHOD USING THE LAMINATING APPARATUS - Provided are laminating apparatus and method. A laminating apparatus includes a jig assembly, which includes the first jig and an elastic member, and a second jig. A laminating method includes placing a first plate on a jig assembly, placing a second plate on a second jig which is placed to face the first jig, bringing the second plate into contact with the adhesive layer by making the jig assembly and the second jig approach each other, and, attaching the first plate and the second plate to each other by making the jig assembly and the second jig approach closer to each other. The jig assembly includes a first jig and an elastic member which comprises a top portion and sloping portions sloping downward from the top portion. An adhesive layer is disposed between the first plate and the second plate. | 10-09-2014 |
20140374014 | RESIN COATING APPARATUS AND A METHOD FOR FORMING A RESIN LAYER USING THE SAME - A resin coating apparatus includes a display panel disposed on a stage. A plurality of nozzles correspond to the display panel. The nozzles have a plurality of outlets configured to discharge a first resin and a second resin to the display panel. The second resin has different viscosity from the first resin. A connecting member holds the plurality of nozzles. A first supply unit is connected to the nozzles, and the first supply unit is configured to supply the first resin. The second supply unit is connected to the nozzles, and the second supply unit is configured to supply the second resin. | 12-25-2014 |
20150017333 | RESIN SPREAD DEVICE AND METHOD OF SPREADING RESIN - A resin spread device includes a substrate, a first member, a resin and a second member. The first member is disposed on the substrate, the first member includes a first region, a second region and a third region, the first region and the third region surround the second region, a plurality of rectangular openings is disposed on the second region and the first member surrounds the openings. The resin is disposed in the openings. The second member is disposed on the first region, and is transported from the first region through the second region to the third region. | 01-15-2015 |
20150279787 | SEMICONDUCTOR PACKAGE AND METHOD OF MANUFACTURING THE SAME - An aligning guide, a semiconductor package comprising an aligning guide, and a method of manufacturing a semiconductor package comprising an aligning guide are provided. The semiconductor package may comprise a circuit board and an aligning guide mounted on the circuit board. The aligning guide may have a plurality of stepped portions. A plurality of semiconductor chips may be stacked on the circuit board and engage with the stepped portions of the aligning guide. According to the disclosed semiconductor package, a large number of semiconductor chips may be stacked with high accuracy and sufficient margin. Therefore, the rate of failure and defects in the chip stacking process may be reduced and the reliability and stability of the semiconductor package may be enhanced. | 10-01-2015 |
Patent application number | Description | Published |
20130002133 | FLEXIBLE DISPLAY PANEL AND DISPLAY APPARATUS INCLUDING THE FLEXIBLE DISPLAY PANEL - A flexible display panel including: a flexible substrate including a first region, second regions that extend from the first region and that have a curved surface, and a third region folded towards the second regions; a first display region in the first region of the flexible substrate; a second display region in the second regions of the flexible substrate; a plurality of non-display regions outside the first display region or the second display regions, wherein at least one of the plurality of non-display regions is in the third region of the flexible substrate; and an encapsulation member for encapsulating the first display region and the second display regions. | 01-03-2013 |
20130002572 | FLEXIBLE DISPLAY PANEL AND DISPLAY APPARATUS INCLUDING THE FLEXIBLE DISPLAY PANEL - A flexible display panel includes a flexible substrate including a first region including a display region and having a curved display surface, and a plurality of non-display regions that is located outside the display region and including a second region located outside the first region and folded in a direction different from a display direction of the first region, and an encapsulation member for encapsulating the display region along the curved display surface. | 01-03-2013 |
20130002583 | FLEXIBLE DISPLAY PANEL AND DISPLAY APPARATUS INCLUDING THE FLEXIBLE DISPLAY PANEL - A flexible display panel including: a flexible panel including a first region including a display region and oriented on a first plane and a second region including a non-display region and oriented on a second plane different from the first plane; and a flexible encapsulation member disposed on the flexible panel so as to encapsulate at least the display region. | 01-03-2013 |
20130127917 | DISPLAY DEVICE - A display device includes a flexible display including a flexible display panel and a flexible touch panel, and a housing configured to enclose the flexible display while allowing the flexible display to move relative to the housing such that a portion of the flexible display is drawn out of the housing and retracted into the housing. The display device further includes a marker configured to contact a location of the flexible touch panel when a portion of the flexible display is drawn out of the housing. The marker is provided such that the contact location changes as the flexible display moves relative to the housing. The display device also includes at least one processor configured to compute the contact location on the flexible display and to adjust the size of an image displayed on the flexible display panel based on the computed contact location. | 05-23-2013 |
20130300677 | FLEXIBLE DISPLAY DEVICE AND METHOD OF SENSING WARPAGE OF THE SAME - A flexible display device includes: a flexible display unit configured to display an image; a flexible touch screen unit disposed over the flexible display unit; an insulating film interposed between the flexible display unit and the flexible touch screen unit, and a spacer formed between the flexible touch screen unit and the insulating film in order to maintain a distance between the flexible touch screen unit and the insulating film. A conductive layer is further formed over the insulating film and configured to touch the flexible touch screen unit when the flexible display device is bent. A degree of warpage of the flexible display device can be measured and thus can be utilized in various warpage events of the flexible display device by using warpage values. | 11-14-2013 |
20130314387 | DISPLAY DEVICE, CALIBRATION METHOD OF DISPLAY DEVICE, AND DISPLAY METHOD OF DISPLAY DEVICE - A display device includes a flexible display panel including a recognition pattern, the recognition pattern having a plurality of sub-patterns with different color concentrations and disposed in a first direction, a housing accommodating the flexible display panel, the flexible display panel being configured to extend out of the housing in the first direction to vary a display area, and a photosensor in the housing, the photosensor corresponding to the recognition pattern and being configured to recognize the recognition pattern and to sense the display area of the flexible display panel. | 11-28-2013 |
20130314762 | DISPLAY DEVICE - A display device includes a flexible display panel with a magnetic pattern, the magnetic pattern including a magnetic substance, a magnetic sensor configured to recognize magnetism of the magnetic pattern and to sense a display area of the flexible display panel in accordance with the magnetic pattern, the display area being variable in a first direction, and a controller connected to the magnetic sensor and to the flexible display panel, the controller being configured to display on the flexible display panel an image corresponding to the display area of the flexible display panel sensed by the magnetic sensor. | 11-28-2013 |
20130342439 | FLEXIBLE DISPLAY APPARATUS - A flexible display apparatus includes a substrate that is flexible and is foldable according to an intention of a user, the substrate including a display area, wherein a size of the substrate is variable according to a folding thereof, a deformation sensing unit that is in an overlapping relationship with the display area and that senses deformation of the substrate, a control unit obtaining information from the deformation sensing unit, and a resolution adjusting unit that is controlled by the control unit and adjusts a resolution of an image displayed on the display area. | 12-26-2013 |
20140002975 | DISPLAY DEVICE, AND METHOD AND APPARATUS FOR MANUFACTURING THE SAME | 01-02-2014 |
20140345792 | DEVICE FOR BONDING WINDOW AND METHOD FOR MANUFACTURING DISPLAY DEVICE USING THE SAME - A window bonding apparatus is provided. The window bonding apparatus includes a resilient display panel supporter supporting a flexible display panel thereon, a holding member supporting and squeezing inwardly opposed ends of the display panel supporter so as to attain a desired degree of curvature, a first jig disposed under the display panel supporter and having a rigid first face with which the bottom face of the display panel supporter comes into contact when pressed from above, and a second jig disposed above the display panel supporter and having a second face to which the window is releaseably attached, the second jig being movable toward the display panel, wherein the second jig is moved to the first jig to attach the window to the display panel in a manner which progressively increases contact area between the window and the display panel. | 11-27-2014 |
20150013900 | SLIT NOZZLE AND METHOD OF MANUFACTURING DISPLAY APPARATUS USING THE SAME - A slit nozzle includes: a first head, a second head facing the first head; and a plurality of cores located between the first head and the second head, wherein the plurality of cores includes: a first core and a third core for coating a coating solution; and a second core located between the first core and the third core so that coating of the coating solution via the first core and the third core is achieved at different instants of time. | 01-15-2015 |
20150321442 | DISPLAY DEVICE, AND METHOD AND APPARATUS FOR MANUFACTURING THE SAME - A display device includes a cover window including a curved portion, and a panel member laminated on the cover window. A method of manufacturing a display device includes mounting a cover window including a curved portion on a first jig including a curved portion, mounting a panel member on a second jig that conforms to a surface of the first jig, and laminating the cover window to the panel member by moving a first one of the first jig or the second jig to a first other one of the first jig or the second jig. An apparatus for manufacturing a display device includes a first jig including a mount surface that is partially curved to conform to a surface of a cover window, a second jig including a surface conforming to the mount surface and configured to contact a panel member, and a driving unit. | 11-12-2015 |