US 2004/0002861 A1 · Method and apparatus for performing observation probability calculations

Abstract

A method and apparatus for calculating an observation probability includes a first operation unit that subtracts a mean of a first plurality of parameters of an input voice signal from a second parameter of an input voice signal, and multiplies the subtraction result to obtain a first output. The first output is squared and accumulated N times in a second operation unit to obtain a second output. A third operation unit subtracts a given weighted value from the second output to obtain a third output, and a comparator stores the third output for a comparator stores the third output in order to extract L outputs therefrom, and stores the L extracted outputs based on an order of magnitude of the extracted L outputs.

Claims22

Dependent claims

An observation probability calculation apparatus comprising:

a first operation unit subtracting a mean of parameters extracted from representative phonemes from a parameter extracted from an input voice signal and multiplying the result of the subtraction by a distribution degree (dispersion) of the mean to obtain a first output, wherein the distribution degree (dispersion) is called Precision;
a second operation unit squaring the first output of the first operation unit and accumulating the result of the squaring N times to obtain a second output;
a third operation unit subtracting a predetermined weighted value from the second output of the second operation unit to obtain a third output;
and
a comparator storing the third output of the third operation unit, extracting L outputs from the outputs of the third operation unit, and storing the extracted L outputs in order of magnitude.

2 more elements

Dependencies are inferred from the claim text.

Method and apparatus for performing observation probability calculations

Life of this patent

Method and apparatus for performing observation probability calculations

Life of this patent

Abstract

Claims22