Patent Document ID: 9142212
Application ID: 13093919

Base Claim:
1. An apparatus for recognizing a voice command, the apparatus, comprising: a probability distribution of a command intention generator, implemented by a processor, configured to recognize a first voice command, and in response, configured to generate probability distributions of the command intention in consideration of predefined possible cases; a probability distribution of the command intention updater, implemented by a processor, configured to update each of the probability distributions of the command intention based on a system response based on one or the generated probability distributions of the command intention to the first voice command and a second voice command issued in response to the system response; a probability distribution of the command intention selector, implemented by a processor, configured to select one of the updated probability distributions of the command intention for the first voice command: and an operation signal generator, implemented by a processor, configured to select a final command intention from the selected updated probability distributions of the command intention and output an operation signal based on the selected final command intention; wherein the probability distribution of the command intention generator, implemented by the processor therefor, is further configured to generate different probability distributions of the command intention for the first voice command for different possible cases, the probability distribution of the command intention updater, implemented by the processor therefor, is further configured to hierarchically update each of the different probability distributions of the command intention, and the different possible cases include when the intention of the user is uniformly maintained, when the intention of the user is slightly modified, and when the intention of the user is completely changed.

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Claim 3:
3. The apparatus of claim 1 , wherein each of the probability distributions of the command intention for the first voice command includes at least one of the intention of the first voice command, information indicating whether the first voice command has been confirmed, information indicating whether the system response to the first voice command has been output, and information indicating whether the output signal has been output.