Patent Document ID: 10134390
Application ID: 15227447

Base Claim:
1. An electronic device comprising: a memory configured to store a user pronunciation lexicon; a voice inputter; and a processor configured to: control the voice inputter to receive a user voice, obtain a word corresponding to the user voice using the user pronunciation lexicon, obtain a first pronunciation for a phoneme included in the user voice, compare the first pronunciation and a second pronunciation pre stored for the word, identify a pronunciation pattern by using a result of the comparing, and update the user pronunciation lexicon according to a pronunciation pattern rule obtained based on the pronunciation pattern, wherein the pronunciation pattern rule is a rule that a user repeats according to at least one of a pronunciation habit of the user and a pronunciation characteristic of the user.

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Claim 7:
7. The electronic device as claimed in claim 1 , wherein the processor is further configured to delete a pronunciation string that the user does not use for more than a predetermined number of times among pronunciation strings stored in the user pronunciation lexicon and add the pronunciation string that is not stored in the user pronunciation lexicon among pronunciation strings generated based on the pronunciation pattern rule to the user pronunciation lexicon.