Patent ID: 6052443
Filing Date: 2000-04-18
Classification: G06F,H04M

Abstract:
An interactive method for composing an alphanumeric message using a telephone keypad, comprising in a messaging terminal the steps of:storing a received sequence of key codes that identifies a sequence in which keys on a telephone style keypad are pressed by a caller in order to enter the alphanumeric message;generating a word trellis from the sequence of key codes, the word trellis comprising at least one subset of candidate words recovered from a lexical database, each of the at least one subset of candidate words corresponding to one subsequence of the sequence of key codes;determining a most likely phrase having a maximum combined probability determined from probabilities stored in the lexical database, that comprises candidate words that are a combination of one candidate word from each of the at least one subset of candidate words;generating a most likely message from the most likely phrase and presenting the most likely message to the caller;confirming that the most likely message is the alphanumeric message; andediting the most likely message when, in response to the step of confirming, a message non-confirmation is received from the caller, wherein the step of editing the alphanumeric message further comprises the steps of:prompting the caller to speak an edit command;recognizing the edit command as one of a predetermined set of edit commands; andperforming the edit command using voice recognition that is governed by a subsequence of the sequence of key codes.