Patent ID: 7818170

Claim:
A mobile communication device comprising: a voice search engine that receives a search query from a user of the mobile communication device, converts speech parts in the search query into linguistic representations, generates a search phoneme lattice based on the linguistic representations, extracts query features from the generated search phoneme lattice, generates coarse search feature vectors based on the extracted query features, and performs a coarse search using the generated coarse search feature vectors; a transceiver that transmits the generated coarse search feature vectors to a remote voice search processing unit and receives web indices from the remote voice search processing unit based on the generated coarse search feature vectors; wherein the voice search engine performs a fine search using the results of the coarse search, the remote web indices, and fine search feature vectors, the fine search feature vectors generated from a word lattice based on the search query, the coarse search results, and the remote web indices; and a display that displays the fine search results to the user.