During the turn-on and turn-off switching processes, power converters have to withstand high voltage and current, leading to high switching losses and stresses. The invention is a passive lossless snubber cell with minimum stress and wide soft-switching range. The energy reset / recirculation proces.....
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The invention creates a pattern-based conversion model to identify ad hoc numerical phrases to increase the accuracy of simplified to traditional Chinese character conversions. The fact that one simplified character can correspond to several traditional Chinese characters of different meanings under.....
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Base station antennas, set up to support wireless communications, abound in our surroundings but they are regarded by many as a health threat and therefore avoided. To mitigate the aversion felt towards base station antennas, the antennas are often hidden or camouflaged from the sight of passers-by......
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Existing methods for multi-string applications require many windings in the isolation transformers because each converter output needs one winding. This invention, a dimmable LED driver, can reduce the number of windings. It also possesses a two-secondary-winding structure to generate several source.....
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Block motion estimation algorithms (BMA) are widely adopted by video coding standards such as MPEG-1, MPEG-2, MPEG-4, H.261, H.263 and the emerging H.264/AVC, mainly due to their simplicity and good distortion performance. The most straightforward BMA is referred to as full search (FS), which exhaus.....
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