Grammar-based checksum constraints for high performance speech r

Details Grammar-based checksum constraints for high performance speech r Grammar-based checksum constraints for high performance speech r

1989-12-29

1993-06-22

Fleming, Michael R.

G10L 900

Patent

active

052221873

ABSTRACT:
A speech system recognizes words from a spoken phrase that conform to checksum constraints. Grammar rules are applied to hypothesize words according to the checksum constraints. The checksum associated with the phrase is thus inherent in the grammar. Sentences which do not meet a predetermined checksum constraint are not valid under the grammar rules and are therefore inherently rejected. The checksum constraints result in increased recognition accuracy.

REFERENCES:
patent: 3947817 (1976-03-01), Requa et al.
patent: 4667341 (1987-05-01), Watari
patent: 4872201 (1989-10-01), Sakoe
patent: 4882757 (1989-11-01), Fisher et al.
patent: 4984178 (1991-01-01), Hemphill et al.
"Total Voice Speaker Verification", by Davis, Hydrick and Doddington, Final Technical Report for Jul. 1976-May 1978, pp. 7-30.

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