Seokheon
Seokheon Kang, Seoul KR
Patent application number | Description | Published |
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20100007743 | FRAME SYNCHRONIZATION AND STRUCTURE DETECTION METHOD IN DVB-S2 SYSTEM - Provided is a method for detecting frame sync and frame structure in a satellite broadcasting system. The method for detecting frame sync and frame structure includes the steps of: calculating differential correlation values of reception symbols; generating index sequences of reception symbols whose differential correlation values calculated above exceed a threshold value; calculating positions estimated as frame start points which correspond to a total frame number based on the number of symbols per frame for each frame structure; and detecting frame sync and frame structure based on the umber of positions where the above-calculated frame start point estimated positions and the above-generated index sequences are matched. | 01-14-2010 |
20100322366 | METHOD FOR DETECTING FRAME SYNCHRONIZATION AND STRUCTURE IN DVB-S2 SYSTEM - Provided is a method for detecting frame sync and frame structure in a satellite broadcasting system, which acquires an estimated value for detecting frame structure and frame sync and overcomes distortion of correlation analysis values by summing differential correlation values for SOF positions in consideration of the variable frame length, and selecting a maximum value in a channel environment with low signal-to-noise ratio and high frequency error. SOF is a sync word indicating the start point of a frame. The method includes the steps of: acquiring SOF differential correlation value sequences; acquiring sums (d | 12-23-2010 |
Seokheon Lee, Seoul KR
Patent application number | Description | Published |
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20130030206 | RECYCLABLE SUPERPARAMAGNETIC NANOPARTICLES AND METHOD FOR PRODUCING THE SAME - A superparamagnetic nanoparticle is comprised of superparamagnetic nanocrystals less than 20 nm in size, and molecules having containing 3 to 5 carboxyl groups, wherein the molecules bond to surfaces of the superparamagnetic nanocrystals. A method for producing superparamagnetic nanoparticles includes preparing an alkaline solution with pH 10 to 14, producing a mixture in which molecules containing 3 to 5 carboxyl groups, a divalent transition metal and ferric precursors are dissolved, and adding the mixture into the alkaline solution. | 01-31-2013 |
Seokheon Lee, Suwon-Si KR
Patent application number | Description | Published |
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20130151761 | DATA STORAGE DEVICE STORING PARTITIONED FILE BETWEEN DIFFERENT STORAGE MEDIUMS AND DATA MANAGEMENT METHOD - A data management method for a data storage device includes receiving a write request; partitioning the file into first and second portions; encrypting the first portion, and storing the encrypted first portion in a first storage medium and the second portion in a second storage medium. | 06-13-2013 |