(under subclass 50) Subject matter for converting coded digital signals representing letters to or from other coded digital signals representing the same letters where, the various code words are generated based on the statistical likelihood of character or symbol occurrence.
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109, for conversions based on stochastic techniques.
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702, Data Processing: Measuring, Calibrating, or Testing,
126, for converting an input signal, subclasses 179+ for statistical measurements, and subclass 198 for converting measurement value from one measuring unit to another measuring unit.
