Ok Hwan
Ok Hwan Kim, Seoul KR
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20110136207 | Mutated Nucleotide Sequences of Batroxobin, Mutated Alpha Factor Secretion Signal Sequence and Processes for Preparing Batroxobin Using the Same - The present invention relates to a batroxobin-encoding nucleotide sequence and/or a mutated α-factor secretion signal sequence, and a vector and a transformant using the same. The batroxobin-encoding nucleotide sequence of this invention exhibits an excellent expression efficiency in yeast, particular | 06-09-2011 |
Ok Hwan Kwon, Gumi-Si KR
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20080297445 | FLAT PANEL DISPLAY DEVICE - The plasma display panel device according to the present invention includes a the data driver that includes a data IC applying a driving signal to at least one address electrode and a data driver applying a driving data signal to the data IC to reduce EMI and ensure timing margin according to high rate switching operations of the plural switches included in the data IC, wherein the data driver generates a first synchronization signal if N−1th data is different from Nth data and maintains and applies the first synchronization signal to the data IC if the Nth data is different from N+1th data. | 12-04-2008 |
Ok Hwan Kwon, Seoul KR
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20140292217 | DIMMING SYSTEM OF LAMP USING LIGHT-EMITTING DEVICE - A dimming system of a lamp using a light-emitting device includes: a power source including a power input terminal, a dimmer connected to the power input terminal, and a rectifier circuit; a lighting unit including light-emitting devices from a first light-emitting device to an n | 10-02-2014 |
Ok Hwan Kwon, Yuseong-Gu KR
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20150340945 | SIGNAL CONTROL CIRCUIT AND SWITCHING APPARATUS - A signal control circuit and a switching apparatus are provided. The switching apparatus includes: a switch for controlling a current flowing through an inductive element; a monitoring node connected with the switch; and a signal control circuit, connected with the monitoring node and a reference voltage, for turning on/off the switch, wherein the signal control circuit includes an integrator for generating a comparison voltage by using a monitoring voltage of the monitoring node and the reference voltage, wherein the integrator includes: a resistor unit; a capacitor unit; and an auto-calibrator for receiving at least one selection signal and determining at least one of a resistance of the resistor unit and a capacitance of the capacitor unit, during a power-up period, and allowing a peak value of the comparison voltage to fall within a target range. | 11-26-2015 |
Ok Hwan Lee, Anyang-Si KR
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20130336306 | METHOD OF COMMUNICATION BASED ON CONTROLLING RECEIVE CHAIN IN WIRELESS LOCAL AREA NETWORK AND APPARATUS FOR THE SAME - A method of communication based on a receive chain control, performed by a receiver, in a wireless local area network is provided. The method includes: receiving a frame from a transmitter, the frame indicating a multi receive chain operation, activating at least one receive chain, each receive chain processing a received signal transmitted through each spatial stream, and receiving at least one data field from the transmitter through the at least one activated receive chain. | 12-19-2013 |
20140098701 | METHOD AND DEVICE FOR CHANNEL MEASUREMENT IN A WIRELESS LAN SYSTEM - The present invention relates to a method and device for channel measurement in a wireless LAN system. A station (STA) receives a plurality of sounding frames from an access point (AP), estimates the plurality of sounding frames in order to generate long-term channel state information (LCSI), provides the generated LCSI to the AP as feedback, and receives from the AP a group identifier (ID) management frame comprising information on a group ID determined on the basis of the LCSI. | 04-10-2014 |