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A visual interface system that recognizes handwriting of Japanese katakana characters in the air has been developed. Characters written in a single stroke have both on-strokes and off-strokes. Thus, the shapes of the hand-gesture characters are different from the shapes of characters written on paper. It is difficult to trace the shapes of characters in air because the writer cannot see the trajectories...
We study a low-density parity-check (LDPC) coded CDMA system. The performance of the system with the optimum joint decoding is analytically evaluated by the spectral efficiency, together with numerical evaluation.
Electro-magnetic flowmeters have been one of the standard flowmeters to measure liquid flowrate in industry. This study proposes a new configuration consisting of two pairs of exciting magnetic coils and a pair of signal pickup electrodes with the higher driving frequencies than those of conventional electro-magnetic flowmeters. This rather complex configuration brings the meters a function of self-calibration...
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