Patent Document ID: 8155956
Application ID: 12045138

Base Claim:
1. A voice query extension method, comprising: detecting voice activity of a user from an input signal and extracting a feature vector from the voice activity using a computer; converting the feature vector into at least one phoneme sequence and generating the at least one phoneme sequence; matching the at least one phoneme sequence with words registered in a language dictionary, extracting a string of the matched words with a linguistic meaning, and selecting the string of the matched words as a query; determining whether the query is in a predetermined first language, and when the query is not in the first language as a result of the determining, converting the query using a phoneme to grapheme rule, and generating a query in the first language; and searching using the query in the first language.

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Claim 2:
2. The voice query extension method of claim 1 , wherein the extracting and selecting matches the at least one phoneme sequence with words registered in a first language dictionary, and when a string of the matched words with a value greater than a predetermined threshold value exists as a result of the matching, selects the string of the matched words as the query, and when the string of the matched words with the value greater than the predetermined threshold value does not exist as a result of the matching, matches the at least one phoneme sequence with words registered in a second language dictionary and selects a string of the matched words as the query.