Speech recognition apparatus

专利名称：Speech recognition apparatus

发明人：Yamada, Eiko, c/o NEC Corporation,Hattori,

Hiroaki, c/o NEC Corporation

申请号：EP95101309.3申请日：19950131公开号：EP0665532A2公开日：19950802

专利附图：

摘要：A speech data is converted into logarithmic spectrum data and orthogonallytransformed to develop feature vectors. Normalization coefficient data and unit vectordata are stored. An inner product of the feature vector data and the unit vector data

stored is calculated. A normalization unit for regressively updating the inner product andperforming spectrum normalization with a curve of the second or higher order on thefeature vectors after the orthogonal transformation by using the updated inner product,the normalization coefficient data and unit vector data and the feature vector. Then arecognition is performed based on the normalized feature vector.

申请人：NEC CORPORATION

地址：7-1, Shiba 5-chome Minato-ku Tokyo JP

国籍：JP

代理机构：Betten & Resch

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