Patent
1994-02-28
1997-05-27
MacDonald, Allen R.
G10L 900, G10L 500
Patent
active
056340834
ABSTRACT:
The procedure for the recognition of a speech signal until output of the recognized word sequence or the recognized sentence is split in accordance with the invention in such a manner that first only word hypotheses are separately generated for different starting instants and that from these word hypotheses preliminary word strings are formed in conformity with a word graph, the word graph thus arising being continuously optimized by erasure of parts of word strings. Parts of word strings having the same beginning and end points are compared with one another and the scores of words having concurrent end points are compared with a threshold value. Further steps for optimization of the word graph are also shown. For output disclosed a particularly effective post-editing operation where for each incorrect word all further words having the same beginning are output, enabling fast selection of the correct word from all said further words, by the operator.
REFERENCES:
patent: 4624008 (1986-11-01), Vensko et al.
patent: 4947438 (1990-08-01), Paeseler
patent: 5228110 (1993-07-01), Steinbiss
patent: 5305422 (1994-04-01), Junqua
Philips Telecommunication Review, vol. 51, No. 2, English Edition, pp. 4-17 .
Edouard Patrick N.
MacDonald Allen R.
Stephens Debra K.
U.S. Philips Corporation
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