Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Joo Hwan
Joo Hwan Lee, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20120127813 | DEVICE AND METHOD FOR STORING ERROR INFORMATION OF MEMORY - A device for storing error information of a memory device includes a plurality of parent memories and a plurality of child memories. Each of the parent memories stores a row address and a column address of one defective cell. Each of the child memories stores a column address of a defective cell, having a row address identical to a row address stored in the corresponding parent memory, or a row address of a defective cell, having a column address identical to a column address stored in the corresponding parent memory. Herein, each of the parent memories stores information about information about whether a row repair must be performed to repair a defective cell stored in the parent memory and information about whether a column repair must be performed to repair a defective cell stored in the parent memory. | 05-24-2012 |
| 20120131396 | DEVICE AND METHOD FOR REPAIR ANALYSIS - A device for repair analysis includes a selection unit and an analysis unit. The selection unit is configured to select a part of the row addresses of a plurality of spare pivot fault cells and a part of the column addresses of the spare pivot fault cells in response to a control code. The analysis unit is configured to generate an analysis signal indicating whether row addresses of a plurality of non-spare pivot fault cells are included in selected row addresses and column addresses of the non-spare pivot fault cells are included in selected column addresses. | 05-24-2012 |
Joo Hwan Noii, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090097884 | DEVELOPER CARTRIDGE, DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developer cartridge constructed in a structure in which an overload is not applied to stirring units to stir a developer even when the developer is lump includes a housing having a developer storage chamber, a first stirring unit rotatably mounted in the housing, and a second stirring unit rotatably mounted in the housing such that the second stirring unit is rotatable with time delay after a rotation of the first stirring unit. The second stirring unit includes a rotary shaft, and the developer cartridge further includes a rotary member coupled to one end of the rotary shaft and a power transmission member to transmit a rotary force to the rotary member after rotation thereof by a predetermined angle. | 04-16-2009 |
Joo Hwan Oh, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090019880 | ICE MAKER AND CONTROL METHOD OF SAME - An ice maker and a controlling method thereof are provided. The system and method may prevent the overflow or splashing of water or thin ice out of an ice tray during the supply of water or when the ice maker is shaken by an external force. The ice maker may include an ice tray, and an ice tray cover that covers an open portion of the ice tray. The cover may include an opening through which water may be supplied to the ice tray, and through which ice may be discharged from the ice tray. The cover may move together with the tray, or may move separately from the tray, to facilitate these supply and discharge processes. | 01-22-2009 |
Joo Hwan Park, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20080198125 | CIRCUIT BOARD AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A circuit board includes; a reference common voltage generating circuit receiving an input voltage from an input node and outputting a reference common voltage to an output node, wherein the reference common voltage generating circuit includes a voltage distribution unit including a first resistor connected between the input node and the output node and a second resistor connected between the output node and a ground, and a sink current generating unit outputting a sink current to the output node, wherein the sink current is adjusted according to a resistance of a setting resistor, and a coupling line coupling the setting resistor and the reference common voltage generating circuit. | 08-21-2008 |
| 20090237340 | LIQUID CRYSTAL DISPLAY MODULE AND DISPLAY SYSTEM INCLUDING THE SAME - A liquid crystal display (LCD) module and a display system including the LCD module are provided. The LCD module includes a common-voltage adjustment unit which is enabled by interfacing with an external device and thus adjusts a common voltage; a signal control unit which outputs a first reverse signal that reverses the polarity of a voltage at intervals of at least two frames; and a data driving unit which reverses the polarity of an image data voltage with respect to the common voltage at intervals of at least two frames in response to the first reverse signal. | 09-24-2009 |
| 20100013781 | TOUCH KEY MODULE - A touch key module of an electronic device is provided. The touch key module includes a Printed Circuit Board (PCB) on which a capacitive touch sensor chip is located and a conductor, located on a surface of the PCB, for detecting contact of the capacitive touch sensor chip. | 01-21-2010 |
| 20100113112 | ANTENNA DEVICE FOR PORTABLE WIRELESS TERMINAL - An antenna device for a portable wireless terminal is provided. The antenna device includes a main antenna for mobile communication for transmitting and receiving signal in a first frequency band, a Transmit (Tx) sub-antenna for transmitting signals in a second frequency band, a Receive (Rx) sub-antenna for receiving signals in a third frequency band, and a controller for selectively using one of the Tx sub-antenna and the Rx sub-antenna if the second frequency band overlaps with the third frequency band, and for providing control such that the Tx sub-antenna and the Rx sub-antenna are simultaneously used if the second frequency band does not overlap with the third frequency band. Accordingly, without increasing the volume of the portable wireless terminal, an antenna space can be ensured and radiation performance can be improved. | 05-06-2010 |
| 20100220079 | LIQUID CRYSTAL DISPLAY - A liquid crystal display includes a gate driver including stages, and a clock generator which receives a clock generation control signal, generates a clock signal and a clock bar signal based on one or more of the clock generation control signal, a gate-on voltage and a gate-off voltage, and outputs the clock signal and the clock bar signal to the gate driver. The clock generator includes an overcurrent protector unit which intercepts at least one of the clock signal and the clock bar signal when a voltage level of at least one of the gate-on voltage and the gate-off voltage is greater than a reference level. | 09-02-2010 |
| 20110053636 | VOICE CALL PROCESSING METHOD AND APPARATUS FOR MOBILE TERMINAL - A voice call processing method and apparatus for a mobile terminal are provided for improving voice communication quality by switching between matching circuits that are optimized for respective audio output modes of the mobile terminal. The mobile terminal includes at least two matching circuits designated for individual audio output modes, a mode tracking unit for detecting a change from a first audio output mode to a second audio output mode, a control unit for identifying the second audio output mode and the matching circuit designated for the second audio output mode and for outputting a control signal for switching to the matching circuit designated for the second audio output mode, and a switch for switching the signal path between the at least two matching circuits based on the control signal output by the control unit. | 03-03-2011 |
Joo-Hwan Cho, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20090033396 | SETUP/HOLD TIME CONTROL CIRCUIT - A setup/hold time control circuit includes a reference signal output unit that sets any one of multiple ports as a reference port and buffers a signal input through the reference port to output as a reference signal. The setup/hold time control circuit also includes a plurality of comparative signal output units that set the remaining ports as comparative ports. The comparative signal output unit synchronizes signals that are input from the comparative ports with the reference signal and outputs the signals as internal signals. The setup/hold time control circuit improves high speed operation of a semiconductor memory device by improving upon the setup/hold time difference between multiple ports. | 02-05-2009 |
| 20100008177 | SEMICONDUCTOR MEMORY DEVICE - A semiconductor memory device includes a clock input unit configured to receive a first clock and a second clock from the external. The memory device further includes a frequency conversion unit configured to convert a frequency of the second clock so that the frequency of the second clock becomes identical to a frequency of the first clock, a phase comparison unit configured to compare a phase of the first clock with that of a clock outputted from the frequency conversion unit, and output a comparison signal corresponding to the comparison result, a logic level change unit configured to change a logic level of a training information signal when a logic level of the comparison signal is fixed for a given time after being changed, and a signal transfer unit configured to transfer the training information signal to the external. | 01-14-2010 |
Joo-Hwan Kim, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20120100233 | COMPOSITIONS FOR TREATMENT AND PREVENTION OF DIABETIC COMPLICATIONS USING OSTEOMELES SCHWERINAE - The present invention relates to a treatment agent for diabetic complications, and a method for the treatment of diabetic complications using the same. The present invention confirmed that | 04-26-2012 |
Joo-Hwan Park, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20110187730 | METHOD OF DRIVING DISPLAY PANEL AND DISPLAY APPARATUS FOR PERFORMING THE SAME - A display apparatus includes a display panel, a plurality of gate lines driving circuit parts, a plurality of data lines driving circuit parts and a timing control part. The display panel includes a plurality of gate lines and a plurality of data lines. The gate lines driving circuit parts output gate signals to the gate lines. The data lines driving circuit parts output data signals to the data lines. The timing control part applies a dummy gate signal to at least one dummy gate line, controls a latch sequence of image data and an output sequence of the gate lines driving circuit parts in a reverse sequence, in response to an inverted-mounting mode selection signal for displaying an inverted mount image to the display panel. Because signal lines can be shortened, heat generated by the display apparatus may be decreased and image quality of the display apparatus may be improved. | 08-04-2011 |