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Changhoon
Changhoon Jeon, Chilgok-Gun KR
| Patent application number | Description | Published |
|---|---|---|
| 20100103160 | Organic light emitting diode display - An organic light emitting diode (OLED) display is provided. The OLED display includes a display panel including pixels formed at each of crossings of a plurality of gate lines and a plurality of data lines, a monitoring signal line formed along an outer area of the display panel, a first signal supply unit that supplies a monitoring signal to the monitoring signal line and generates a first power control signal, a power supply unit that supplies a high potential driving voltage and a low potential driving voltage to the pixels, and a second signal supply unit that monitors the monitoring signal and generates a second power control signal. If the monitoring signal is not monitored, the second signal supply unit controls the power supply unit through the second power control signal and allows the power supply unit to stop supplying one of the high and low potential driving voltages to the pixels. | 04-29-2010 |
| 20110069059 | REGULATOR AND ORGANIC LIGHT EMITTING DIODE DISPLAY USING THE SAME - A regulator and an organic light emitting diode display including the regulator are disclosed. The regulator includes a reference voltage generating unit generating a reference voltage from an input voltage, a voltage division resistor circuit dividing a voltage of an output terminal of the regulator to generate a feedback voltage, a comparator comparing the reference voltage with the feedback voltage, a transistor that is turned on or off based on an output of the comparator and switches on or off the input voltage supplied to the output terminal, and a sink current breaking circuit for discharging a sink current flowing in the output terminal to a ground level voltage source. | 03-24-2011 |
Changhoon Kim, Princeton, NJ US
| Patent application number | Description | Published |
|---|---|---|
| 20090296714 | SCALABLE MULTIPROTOCOL LABEL SWITCHING BASED VIRTUAL PRIVATE NETWORKS AND METHODS TO IMPLEMENT THE SAME - Example scalable multi-protocol label switching (MPLS) based virtual private networks (VPNs) and methods to implement the same are disclosed. A disclosed example spoke provider edge (PE) router for an MPLS-based VPN includes a truncated virtual routing and forwarding (VRF) table containing a first value referencing a hub PE router and a second value referencing a first customer edge (CE) router coupled to the VPN via the PE router, and a forwarding module to forward a packet received from the first CE router to the hub PE router when the packet contains an address referencing a second CE router coupled to the VPN via a second spoke PE router. | 12-03-2009 |
| 20100061370 | Systems and Methods for Optimized Route Caching - A method for optimized route caching includes comparing a destination address of a network packet to a first set of prefixes in a routing cache, and comparing the destination address to a second set of prefixes in a full routing table when a longest matching prefix for the destination address is not found in the routing cache. The method further includes copying the longest matching prefix and a set of sub-prefixes of the longest matching prefix from the full routing table to the routing cache, and forwarding the network packet. | 03-11-2010 |
Changhoon Lee, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100077307 | SYSTEM AND METHOD FOR PRODUCING VIDEO MAP - Disclosed is a system and method for providing a moving picture map, the system including: a moving picture upload part for uploading moving pictures for one or more objects; and a map provision part for forming a moving picture map showing relations to other moving pictures according to subject matters, based on indexes corresponding to the moving pictures, and providing the moving picture map to a user interface for a moving picture search. Therefore, a user can be allowed to easily retrieve a number of moving pictures, and a manual and a review about a predetermined product can be made in a moving picture format for provision of the moving picture containing the manual and the review to consumers. | 03-25-2010 |
| 20100296982 | CRYSTALLIZATION REACTION APPARATUS FOR PREPARATION OF MASSIVE CRYSTALLINE PARTICLES AND CRYSTALLINE SEPARATION PROCESSING SYSTEM - Disclosed is a crystallizer comprising: a reaction bath having an inlet for feeding a reactant, an outlet for discharging a reaction product, and an inner reaction space in which a crystallization reaction is proceeded; and an agitation bar placed in the inner reaction space of the reaction bath, one cross-section of which is smaller than the other cross-section of the bar in a direction of flowing the reactant. | 11-25-2010 |