Patent ID: 8239129

Claim:
A method for speech recognition, the method comprising the steps of: automatically providing a first category of geographical information to a user; deriving a second category of geographical information derived from an area of a map displayed in the vehicle, the map area being manually marked by the user; extracting a plurality of candidate words from the geographical information, first ones of the candidate words being extracted from the first category of geographical information, and second ones of the candidate words being extracted from the second category of geographical information; recognizing words spoken within the vehicle by use of a speech recognition module, the recognizing including selecting at least one word from the candidate words, the second candidate words being given more weight in the selecting than are the first candidate words; dividing the map into a plurality of sections; and creating an index associating each of the sections with names of entities with the section, the extracting of the second candidate words including using the index to identify all of the entity names associated with each of the sections that are at least partially overlapped by the manually marked area of the map.