Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1988-04-19
1990-03-20
Kemeny, Emanuel S.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
G10L 500
Patent
active
049107836
ABSTRACT:
A method and apparatus for finding, by dynamic programing, combined patterns of standard patterns which are most similar to an input pattern by conducting a comparison collation between the input pattern expressed by a feature vector row and various combined patterns of memorized standard patterns expressed by feature vector rows corresponding to respective units of the words and the like to be recognized. In a dynamic programming calculation apparatus a comparison collation distance between a local pattern of the input pattern and an individual standard pattern is obtained, as a first step, by a method which is independent of a local length of the input pattern. Subsequently, as a second step, the comparison collation distance is converted into a quantity, which is independent of a length of the standard pattern, to obtain a distance between the comparison collation distance and various combined patterns of said standard patterns as a semioptimum value, thereby finding the combined patterns of said standard patterns which are most similar to said input pattern. Since in the dynamic programming calculation for the first step a weighting coefficient is determined so as to be dependent upon merely a standard pattern frame length, the result of a preceding calculation of a distance between vectors can be used in the following calculation, whereby overlapping calculations can be avoided.
REFERENCES:
patent: 4608708 (1986-06-01), Watanabe
Farley Joseph W.
Kemeny Emanuel S.
Matsushita Electric - Industrial Co., Ltd.
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