Phoneme recognition utilizing relative positions of reference ph

Details Phoneme recognition utilizing relative positions of reference ph Phoneme recognition utilizing relative positions of reference ph

1990-10-19

1992-08-18

Shaw, Dale M.

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

381 41, G10L 504

Patent

active

051406683

ABSTRACT:
In a phoneme recognition apparatus, first distances between input vectors and reference vectors are determined. If the first distances are lower than a threshold value, the input vectors are identified as corresponding to the reference vectors. If the first distances are higher than the threshold value, the input vectors are identified as being indeterminate, and input differential vectors between the input vectors identified as corresponding to a reference vector and those identified as not corresponding to any of the reference vectors are determined. In addition, reference differential vectors between the reference vectors having corresponding input vectors and are those having no corresponding input vectors are determined. Second distances between the input differential vectors and the reference differential vectors are calculated and summed. The indeterminate input vectors are then identified as corresponding to the reference vectors in accordance with combined values of the first distances and the summed second distances.

REFERENCES:
patent: 4601054 (1986-07-01), Watari et al.
patent: 4618983 (1986-10-01), Nishioka et al.
patent: 4712243 (1987-12-01), Ninomiya et al.
patent: 4715004 (1987-12-01), Kabasawa et al.
patent: 4718094 (1988-01-01), Bahl et al.
patent: 4860358 (1989-08-01), Rabiner
patent: 4903306 (1990-02-01), Nakamura

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