Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Ha, Suwon
Chang Woo Ha, Suwon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090322247 | Dimming buck type LED driving apparatus - A dimming buck type light emitting diode (LED) driving apparatus includes a main switch controlling a driving current flowing into an LED; a current detector detecting a driving current flowing into the LED; a power level determination unit determining a level of the driving power; a dimming capacitor for dimming control; a dimming control unit controlling charging and discharging of the dimming capacitor according to a power level determination signal and an enable signal; a reset circuit unit generating a reset signal according to a detection voltage from the current detector and a voltage of the dimming capacitor; a pulse generation unit generating a pulse signal; and a latch set by the pulse signal of the pulse generation unit and reset by the reset signal of the reset circuit unit to generate a switching signal, and turning on and off the main switch using the switching signal. | 12-31-2009 |
Dong-Jin Ha, Suwon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090009943 | PLASMA DISPLAY DEVICE - A plasma display device including a plasma display module having a plasma display panel and a chassis frame coupled to each other; a stand facing a supporting surface to maintain the plasma display module in an erect state; a bracket having a structure for coupling the stand and being on a central vertical axis of the chassis frame; and a reinforced material for reinforcing strength of the chassis frame, the reinforced material extending diagonally from the bracket toward a vertex of the chassis frame and coupled to the chassis frame and the bracket. | 01-08-2009 |
Hae Soo Ha, Suwon KR
| Patent application number | Description | Published |
|---|---|---|
| 20110204387 | SEMICONDUCTOR LIGHT EMITTING DEVICE HAVING MULTI-CELL ARRAY, LIGHT EMITTING MODULE, AND ILLUMINATION APPARATUS - A semiconductor light emitting device includes a substrate, a plurality of light emitting cells, a connection part, and a concavo-convex part. The light emitting cells are arrayed on the top surface of the substrate. Each of the light emitting cells has a first-conductivity-type semiconductor layer, an active layer, and a second-conductivity-type semiconductor layer that are sequentially stacked on the top surface of the substrate. The connection part is formed to connect the light emitting cells in series, parallel or series-parallel. The concavo-convex part is formed in at least one of the bottom surface of the substrate and the top surface of an isolation region between the light emitting cells. | 08-25-2011 |
Job Ha, Suwon KR
| Patent application number | Description | Published |
|---|---|---|
| 20080283989 | Wafer level package and wafer level packaging method - Provided are a wafer level package and a wafer level packaging method, which are capable of performing an attaching process at a low temperature and preventing contamination of internal devices. In the wafer level package, a device substrate includes a device region, where a device is formed, and internal pads on the top surface. The internal pads are electrically connected to the device. A cap substrate includes a getter corresponding to the device on the bottom surface. A plurality of sealing/attaching members are provided between the device substrate and the cap substrate to attach the device substrate and the cap substrate and seal the device region and the getter. The sealing/attaching members are formed of polymer. A plurality of vias penetrate the cap substrate and are connected to the internal pads. The getter provided in the sealed space defined by the sealing/attaching members can prevent the devices of the device region from being contaminated by moisture or foreign particles generated during the fabrication process, and the sealing/attaching process can be performed at a lower temperature compared with a typical sealing/attaching process using a metal. | 11-20-2008 |
| 20080290479 | Wafer level device package with sealing line having electroconductive pattern and method of packaging the same - Provided are wafer level package with a sealing line that seals a device and includes electroconductive patterns as an electrical connection structure for the device, and a method of packaging the same. In the wafer level package, a device substrate includes a device region, where a device is mounted, on the top surface. A sealing line includes a plurality of non-electroconductive patterns and a plurality of electroconductive patterns, and seals the device region. A cap substrate includes a plurality of vias respectively connected to the electroconductive patterns and is attached to the device substrate by the sealing line. Therefore, a simplified wafer level package structure that accomplishes electric connection through electroconductive patterns of a sealing line can be formed without providing an electrode pad for electric connection with a device. | 11-27-2008 |
Joo Young Ha, Suwon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100097492 | APPARATUS AND METHOD FOR CONTROLLING AUTO EXPOSURE - There is provided an apparatus and method for controlling auto exposure (AE) that is used in digital imaging devices. The apparatus which controls the luminance of an image being outputted from an image sensor by controlling exposure time and analog gain of the image sensor includes: a luminance operation unit operating and outputting a mean luminance of the image outputted from the image sensor; a shutter index determination unit comparing a predetermined target luminance with the mean luminance of the outputted image and determining a shutter index in different manners according to the magnitude of the difference between the target luminance and the mean luminance of the outputted image; and an exposure time/analog gain determination unit generating exposure time and analog gain corresponding to the shutter index determined in the shutter index determination unit and applying the generated exposure time and analog gain to the image sensor. Therefore, the apparatus may be useful to stably reproduce an image with an adequate luminance even when there is a rapid change in brightness of a subject for photography. | 04-22-2010 |
| 20100134650 | METHOD FOR CONTROLLING AUTO-EXPOSURE - An auto-exposure control method includes: creating an exposure table and an analog gain table including an exposure time and an analog gain of an image sensor set according to an index, respectively; calculating an average luminance value of an image frame obtained by the image sensor; checking whether or not the average luminance value is within a pre-set range including a prescribed final target value; if the average luminance value is not within the pre-set range, determining a shift step from indexes which have been applied to a current image frame according to the difference between the average luminance value and the final target value in order to determine indexes of the exposure table and the analog gain table to be applied to a next image frame; and repeatedly performing of reading an exposure time and an analog gain corresponding to the indexes shifted by the shift step determined from the indexes applied to the current image frame, from the exposure table and the analog gain table, applying the same to the image sensor, obtaining a next image frame, and calculating an average luminance value. | 06-03-2010 |
| 20100194991 | Apparatus and method for auto white balance control considering the effect of single tone image - An apparatus for auto white balance includes a histogram generation unit writing respective histograms of Cb values and Cr values with regard to pixels included in an input image frame, a single-tone determination unit comparing respective maximum values of the histograms of Cb values and Cr values with a first threshold value, and determining the input image frame as a single-tone image if at least one of the maximum values is higher than the first threshold value, and an auto white balance gain computation unit computing and an auto white balance gain by using color information of an input image frame and outputting the computed auto white balance gain, wherein if the input image frame is determined to be a single-tone image, the auto white balance gain computation unit outputs an auto white balance gain computed with respect to a previous input image frame. | 08-05-2010 |
| 20120032924 | TOUCH SCREEN APPARATUS - A touch screen apparatus includes a mirror part arranged on a side of a quadrilateral touch area, retroreflectors arranged on remaining three sides of the touch area, first and second light transmitting and receiving parts, each being disposed on each of two edges formed by one of the retroreflectors and emitting light to the touch area and detecting reflected light out of the emitted light by the mirror part and the retroreflectors, an angle extracting part calculating a plurality of light emitting angles for a location from which no reflected light is received, by at least one of the first and second light transmitting and receiving parts, and a coordinate generating part calculating a coordinate pair of a location in which light paths corresponding to the plurality of light emitting angles calculated by the angle extracting part intersect with each other. | 02-09-2012 |
| 20120033884 | APPARATUS AND METHOD FOR ESTIMATING EDGE AREAS OF DIGITAL IMAGE - There are provided an apparatus and a method for estimating edge areas of pixels in a digital image to thereby prevent an edge sharpening algorithm from being applied to non-edge area of the digital image. Therefore, the apparatus can accurately determine whether each pixel is in an edge area or in a non-edge area, by generating a binary mask obtained by using a luminance difference average between each pixel and each of neighboring pixels in the digital image. Moreover, the determination of an edge-area or a non-edge area may be applied to various digital images, by adjusting a level of edge-area determination. | 02-09-2012 |
| 20120033885 | APPARATUS FOR IMPROVING SHARPNESS OF IMAGE - There is provided an apparatus for improving the sharpness of an image, which may prevent occurrence of distortion of an image in an edge enhancement process of the image by applying an active weight in accordance with a two-dimensional (2D) high pass filtering value of the image. The apparatus may include: a 2D high pass filter outputting a high frequency element value for the luminance values of pixels of an input image; a weight generating unit generating a weight changed depending on a magnitude of the high frequency element value; a weight applying unit applying the weight to the high frequency element value; and an edge enhancement image generating unit adding, to the luminance values of the pixels of the input image, the high frequency element value to which the weight is applied to thereby output an image of which an edge is enhanced. | 02-09-2012 |
Kwang Jin Ha, Suwon KR
| Patent application number | Description | Published |
|---|---|---|
| 20110063066 | SPACE TRANSFORMER FOR PROBE CARD AND METHOD OF REPAIRING SPACE TRANSFORMER - A space transformer for a probe card includes: a multilayered circuit board having first and second faces which face each other and a plurality of side faces connecting the first and second faces; a plurality of channels including a first pad formed on the first face and receiving an electrical signal applied from the exterior, a second pad formed on the second face, to which a probe is connected, and a through wiring penetrating the multilayered circuit board and connecting the first and second pads; and side wirings formed on the side faces and connecting first and second pads of a damaged channel among a plurality of channels. When a portion of channels transferring an electrical signal to probes is damaged, the space transformer can repair the damaged channel by means of the side wirings. | 03-17-2011 |
Mun Su Ha, Suwon KR
| Patent application number | Description | Published |
|---|---|---|
| 20110157768 | MULTILAYER CERAMIC CAPACITOR AND METHOD OF MANUFACTURING THE SAME - A multilayer ceramic capacitor and a method of manufacturing the same are provided. The multilayer ceramic capacitor includes a capacitive part, a passivation layer, and first and second outer electrodes. In the capacitive part, a plurality of dielectric layers and a plurality of first and second inner electrodes are alternately laminated, and ends of the first and second inner electrodes are alternately and respectively exposed in a direction of lamination of the dielectric layers. The passivation layer is provided at either or both of the top and bottom surfaces of the capacitive part. The first and second outer electrodes are electrically connected to the first and second inner electrodes exposed in a direction of lamination of the dielectric layers. One or more inner electrodes disposed at both ends in a direction of lamination among the plurality of inner electrodes include oxide represented by Ni—Mg—O. | 06-30-2011 |
| 20110171589 | SINTERING FURNACE FOR CERAMIC PRODUCT AND SINTERING METHOD USING THE SAME - There is provided a sintering furnace for a ceramic product and a sintering method using the same. A sintering furnace for a ceramic product according to an aspect of the invention may include: a furnace body having an insulating material provided therein; at least one setter arranged in the furnace body and having a ceramic molded product loaded on an upper side thereof; a heater supplying heat to the ceramic molded product; and a gas supply device disposed under the setter or around the heater so that a uniform temperature gradient is maintained inside the furnace body. | 07-14-2011 |
Sang Hoon Ha, Suwon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100156539 | POWER AMPLIFIER SYSTEM WITH POWER CONTROL FUNCTION - A power amplifier system with power control function provides accurate and efficient power control by controlling a bias voltage and a bias current of the power amplifier at the same time. A power amplifier system with power control function according to an aspect of the invention may include: a power amplifier receiving a bias voltage and a bias current from a power voltage source and having a gain controlled according to the magnitude of the bias voltage and the bias current; a voltage detection controller detecting the magnitude of the bias voltage being supplied to the power amplifier and comparing the magnitude of the bias voltage with a predetermined reference voltage to control the magnitude of the bias voltage; and a current detection controller detecting voltage having a magnitude equivalent to the magnitude of the bias current being supplied to the power amplifier and comparing the magnitude of the voltage equivalent to the magnitude of the bias current with the reference voltage to control the magnitude of the bias current. | 06-24-2010 |
| 20110140682 | VOLTAGE REGULATOR SUITABLE FOR CMOS CIRCUIT - There is provided a voltage regulator suitable for a CMOS circuit. A voltage regulator suitable for a CMOS circuit according to an aspect of the invention may include: a voltage setting unit setting a voltage across both terminals of a load; a voltage amplification unit setting an input voltage; and a voltage control unit controlling a voltage to be applied to the second connection node according to an output voltage of the voltage amplification unit, wherein the voltage across both terminals of the load is maintained to be constant regardless of variations in a power voltage. | 06-16-2011 |
| 20110193545 | POWER CONTROL SYSTEM AND POWER AMPLIFICATION SYSTEM USING THE SAME - There is provided a power control system. A power control system may include: a power regulator having a plurality of power PMOS transistors connected to a power source in parallel with each other; a current sensing unit connected to the power source and sensing currents flowing through a plurality of target PMOS transistors located at predetermined positions; a current mirror unit connected to a first regulated voltage terminal and generating a plurality of currents equal to the currents sensed by the current sensing unit; a comparator unit totaling the plurality of currents generated by the current mirror unit to convert the totaled currents into a voltage, and generating a voltage difference between the voltage and a predetermined reference voltage; and a current bias circuit unit controlling a bias current according to the voltage difference from the comparator unit. | 08-11-2011 |
Seung Woo Ha, Suwon KR
| Patent application number | Description | Published |
|---|---|---|
| 20120113790 | Motor and recording disk drive device having the same - There is provided a motor including: a rotating member coupled to a shaft and rotating in connection with the shaft; a stationary member having the shaft inserted therein and supporting the shaft; a wall part protruding from a surface of the rotating member and allowing oil to be sealed between the rotating member and the stationary member; and a pumping groove formed in at least one of the wall part and an outer surface of the stationary member corresponding to the wall part and pumping the oil between the shaft and the stationary member. | 05-10-2012 |