A highly accurate technique for recognizing spoken digit strings is described. A spoken digit string is received and analyzed by a speech recognizer, which generates a list of hypothesized digit strings arranged in ranked order based on a likelihood of matching the spoken digit string. The individual...http://www.google.ca/patents/US6922669?utm_source=gb-gplus-sharePatent US6922669 - Knowledge-based strategies applied to N-best lists in automatic speech recognition systems
