Pre-processed annotation of street grammar in speech enabled navigation systems

A speech enabled navigation device comprising:

• a street annotation pre-processor containing logic enabled to construct an annotated street grammar by annotating a street root name with a set of street suffixes prior to processing a voice navigation input;
• an annotated street grammar storage coupled to the street annotation pre-processor, the annotated street grammar storage contains street root names wherein each street root name has more than one street suffix associated with said street root name;
• and
• a speech recognition processor for
• loading the annotated street grammar;
• receiving a voice navigation input specifying a street name from a user;
• determining whether the street name is missing a suffix;
• and
• upon determining both that the street name is missing the suffix and also that the street name has more than one street suffix associated with the street name, prompting the user to select a street suffix by providing, to the user, the set of street suffixes associated with the street name based on the annotated street grammar.

A computer program product comprising a non-transitory computer usable storage medium embodying computer usable program code for constructing street grammar, the computer program product comprising computer usable program code for:

• constructing an annotated street grammar, by a street annotation pre-processor, by annotating a street root name with a set of street suffixes prior to processing a voice navigation input in a speech enabled navigation device;
• loading the annotated street grammar by a speech recognition processor;
• receiving a voice navigation input specifying a street name from a user;
• determining whether the street name is missing a suffix;
• and
• upon determining both that the street name is missing the suffix and also that the street name has more than one street suffix associated with the street name, prompting the user to select a street suffix by providing, to the user, the set of street suffixes associated with the street name based on the annotated street grammar.