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Junghee
Junghee Han, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20110063085 | METHOD FOR DETERMINING OPTIMAL FRAME SIZE FOR TAG COLLISION PREVENTION IN RFID SYSTEM - The present invention relates to a method for determining an optimal frame size for tag collision prevention in an Aloha-based RFID system in which frame sizes limited to a certain unit are used to identify tags, the method including the steps of using an RFID for: (a) calculating an estimated optimal frame value for the RFID reader identifying the tags; (b) calculating expected time delays per tag of a left-hand frame size and a right-hand frame size, which show the smallest differences with respect to the estimated optimal frame value, among the frame sizes; (c) comparing, the expected time delay per tag of the left-hand frame size with that of the right-hand frame size; and (d) determining a frame size which has a smaller expected time delay per tag, between the left-hand frame size and the right-hand frame size, to be an optimal frame size. | 03-17-2011 |
Junghee Kim, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20100087306 | Centrifuging device with a detachable cover and a safeguard structure for prevention of the departure of rotor from it - Disclosed is a centrifuging device with a detachable cover and a safeguard structure in which the cover of the centrifuging device can be completely separated from the housing; and the safeguard structure can prevent a rotor from becoming separated from a drive shaft during operation due to flange defection and prevent the fractured pieces of the rotor from springing out of the housing when the rotor breaks or cracks. The centrifuging device according to the invention offers ease of cleaning and improved safety. Furthermore, there is no need to worry about the fracture of a coupling portion between the cover and the housing attributable to the repeated opening and closing. | 04-08-2010 |
Junghee Kim, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20110293099 | System, medium and method of encoding/decoding multi-channel audio signals - An system, method, and method of encoding/decoding a multi-channel audio signal, including a decoding level generation unit producing decoding-level information that helps a bitstream including a number of audio channel signals and space information to be decoded into a number of audio channel signals, wherein the space information includes information about magnitude differences and/or similarities between channels, and an audio decoder decoding the bitstream according to the decoding-level information. Accordingly, even a single input bitstream can be decoded into a suitable number of channels depending on the type of a speaker configuration used. Scalable channel decoding can be achieved by partially decoding an input bitstream. In the scalable channel decoding, a decoder may set decoding levels and outputs audio channel signals according to the decoding levels, thereby reducing decoding complexity. | 12-01-2011 |
Junghee Lee, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20120114564 | MRI T1 CONTRASTING AGENT COMPRISING MANGANESE OXIDE NANOPARTICLE - The present invention relates to the use of and method for using MnO nanoparticles as MRI T1 contrasting agents which reduces T1 of tissue. More specifically, the present invention is directed to MRI T1 contrasting agent comprising MnO nanoparticle coated with a biocompatible material bound to a biologically active material such as a targeting agent, for example tumor marker etc., and methods for diagnosis and treatment of tumor etc. using said MRI T1 contrasting agent, thereby obtaining more detailed images than the conventional MRI T1-weighted images. The MRI T1 contrasting agent of the present invention allows a high resolution anatomic imaging by emphasizing T1 contrast images between tissues based on the difference of accumulation of the contrasting agent in tissues. Also, the MRI T1 contrasting agent of the present invention enables to visualize cellular distribution due to its high intracellular uptake. The MRI T1 contrasting agent of the present invention can be used for target-specific diagnosis and treatment of various diseases such as tumor etc. when targeting agents binding to disease-specific biomarkers are conjugated to the surface of nanoparticles. | 05-10-2012 |
Junghee Yoo, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090251891 | Portable Illuminator - Disclosed is a portable illuminator, capable of variously adjusting an angle and a length and simultaneously charging batteries used in various mobile products while serving as a reading lamp, a table lamp, and any other ordinary lamp. The portable illuminator includes a power supply and control module supplying power to control operation of a lamp, a guide and pivot main body pivotably coupled to the power supply and control module, a slide assembly slidably inserted into the guide and pivot main body, and a lamp module mounted to one end of the slide assembly. | 10-08-2009 |