Grammar-based checksum constraints for high performance speech recognition circuit
First Claim
Patent Images
1. A method of recognizing speech comprising the steps of:
- receiving spoken input;
observing words from said spoken input;
conforming a sequence of said observed words to one or more checksum constraints; and
recognizing said conformed sequence by controlling such speech recognition with a grammar embedding said checksum constraints.
2 Assignments
0 Petitions
Accused Products
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.
19 Citations
32 Claims
-
1. A method of recognizing speech comprising the steps of:
-
receiving spoken input; observing words from said spoken input; conforming a sequence of said observed words to one or more checksum constraints; and recognizing said conformed sequence by controlling such speech recognition with a grammar embedding said checksum constraints. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. Circuitry for recognizing speech comprising:
-
circuitry for receiving spoken input; circuitry for observing words from said spoken input; circuitry for conforming a sequence of said observed words to one or more checksum constraints; and circuitry for recognizing said conformed sequence by controlling such speech recognition with a grammar embedding said checksum constraints. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A method of recognizing speech from a spoken phrase comprising a plurality of words in a grammar-based system, comprising the steps of:
-
receiving said spoken phrase; activating a first state; hypothesizing a word from the spoken phrase; applying a grammar rule associated with said first state to said hypothesized word and an observed word such that a second state is determined, said second state indicative of a checksum value; and recognizing speech by controlling such speech recognition with a grammar embedding checksum constraints which employ said checksum value. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. Circuitry for recognizing speech from a spoken phrase comprising a plurality of words, comprising:
-
circuitry for hypothesizing words from the spoken phrase; circuitry for applying grammar rules to determine a transition from a source state to a destination state responsive to a hypothesized word, such that a checksum may be determined from said destination state; and circuitry for recognizing speech by controlling such speech recognition with a grammar embedding checksum constraints by employing said checksum. - View Dependent Claims (27, 28, 29, 30, 31, 32)
-
Specification