Janghwan
Janghwan Cho, Seoul KR
Patent application number | Description | Published |
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20120019462 | IMAGE DISPLAY APPARATUS AND METHOD OF OPERATING THE SAME - There are provided an image display apparatus having a display unit capable of sensing a touch made by a pointing device, and a method for operating the same. The method includes outputting a synchronous signal through the entire region of the display unit, transmitting a first scanning signal and a second scanning signal respectively scanning the display unit in a first direction and a second direction to the pointing device; and acquiring touch position information regarding a touch made by the pointing device by using touch time information regarding time points when the pointing device receives the first scanning signal and the second scanning signal after sensing the synchronous signal. Accordingly, an error in touch recognition caused by the delay of a synchronous signal can be minimized. | 01-26-2012 |
20130264960 | LIGHT EMITTING DIODE DRIVING APPARATUS - A light emitting diode (LED) driving apparatus is disclosed. The LED driving apparatus includes a rectifier for rectifying an alternating current (AC) voltage to supply a ripple voltage, a light emitting unit partitioned into two or more groups, each of the groups including a plurality of LEDs, and a driving controller for selectively driving one or more of the groups of the light emitting unit depending on a level of the ripple voltage, the driving controller driving at least one of the groups of the light emitting unit using current discharged from a capacitor connected with the at least one group when the ripple voltage is lower than an operating voltage of the light emitting unit. | 10-10-2013 |
Janghwan Jeon, Seoul KR
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20150341717 | GLASS-TYPE TERMINAL AND METHOD OF CONTROLLING THE SAME - A glasses-type terminal including a main body configured to be worn as glasses on a user's head; a first microphone configured to detect a vibration signal through a skull portion of the user in which a voice being input propagates through the skull portion of the user; a second microphone configured to detect a voice signal in which the voice being input propagates over the air; a memory configured to store a pre-registered vibration signal and a pre-registered voice signal corresponding to a pre-registered voice; and a controller configured to switch a locked state to an unlocked state when the vibration signal detected through the first microphone is matched to the pre-registered vibration signal and the voice signal detected through the second microphone is matched to the pre-registered voice signal. | 11-26-2015 |
Janghwan Kim, Suwon-Si KR
Patent application number | Description | Published |
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20100146333 | Auxiliary power supply and user device including the same - A user device is provided. The device includes a main power supply, and an auxiliary power supply. The main power supply provides a main power. The auxiliary power supply cuts off the main power according to a power level of the main power supply and provides an auxiliary power upon Sudden Power-Off (SPO). | 06-10-2010 |
20150026516 | AUXILIARY POWER SUPPLY AND USER DEVICE INCLUDING THE SAME - A user device is provided. The device includes a main power supply, and an auxiliary power supply. The main power supply provides a main power. The auxiliary power supply cuts off the main power according to a power level of the main power supply and provides an auxiliary power upon Sudden Power-Off (SPO). | 01-22-2015 |
Janghwan Kim, Jeonmin-Dong KR
Patent application number | Description | Published |
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20130280809 | REPROGRAMMING OF CELLS TO A NEW FATE - Methods and compositions for transdifferentiation of an animal cell from (i) a first pluripotent cell fate to a second nonpluripotent cell fate or (ii) from a non-pluripotent mesodermal, endodermal, or ectodermal cell fate to a different non-pluripotent mesodermal, endodermal, or ectodermal cell fate. | 10-24-2013 |