| 摘要 |
A method of a root operation for voice recognition and mobile terminal thereof are disclosed, by which an operational speed faster than that of a Taylor series using method can be provided and by which a memory having a size smaller than that of a table using method is needed. The present invention includes the steps of transforming an inputted frame of prescribed bits into a multiplication of a mantissa part having a value equal to or greater than 1 under 1 and an exponential part having an even exponent, finding a root operation value of the mantissa part using both a linear interpolation technique and a table-using technique, finding a rot value of the exponential part, and outputting a multiplication of the mantissa part root value and the exponential part root value as a root value corresponding to the inputted frame of the prescribed bits.
|
