G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 15/00 (2006.01) G06F 3/02 (2006.01) G06F 17/27 (2006.01) G10L 15/22 (2006.01)
Patent
CA 2511733
A system and method for non-speech input or keypad-aided word and spelling recognition is disclosed. The method comprises performing spelling recognition via automatic speech recognition (ASR) on received speech from a user, the ASR being performed using a statistical letter model trained on domain data and producing a letter lattice R LN. If an ASR confidence is below a predetermined level, then the method comprises receiving non-speech input from the user, generating a keypad constraint grammar K and generating a letter string based on a composition of finite state transducers R LN and K. Other variations of the invention include recognizing input by first receiving non-speech input, dynamically generating an unweighted grammar, generating a weighted grammar using domain data, and then performing speech, and thus spelling, recognition on input speech using the weighted grammar.
At&t Corp.
Kirby Eades Gale Baker
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