Patent Document ID: 9865252
Application ID: 14169177

Base Claim:
1. A dialogue type voice recognition apparatus comprising: a communicator which is configured to perform communication with an external apparatus; and at least one hardware processor configured to execute voice recognition of the dialogue type voice recognition apparatus to: convert a user's utterance voice signal into text; extract a first utterance element representing a user action and a second utterance element representing an object from the text of the user's utterance voice signal, detect an expansion domain, being related to the extracted first utterance element and second utterance element, in a hierarchical domain model, when a user action script, comprising a main action corresponding to the first utterance element and a component slot corresponding to the second utterance element, is included in the expansion domain, wherein the hierarchical domain model comprises a plurality of candidate domains of a lowermost concept and the expansion domain, including at least two candidate domains, of an uppermost concept, detect at least one candidate domain related to the detected expansion domain when the user action script is included in the candidate domain, determine the at least one candidate domain related to the detected expansion domain as a final domain, detect a candidate domain, when the user action script is included in the candidate domain and the expansion domain is not detected, control the communicator to transmit information regarding the first and second utterance elements and information regarding the determined final domain as a result of the voice recognition of the dialogue type voice recognition apparatus, to an external apparatus, and control the communicator to receive response information related to the first and second utterance elements within the determined final domain from the external apparatus.

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Claim 3:
3. The dialogue type voice recognition apparatus according to claim 1 , wherein the at least one hardware processor is configured to: use a multi classifier to detect a subordinate candidate domain related to the detected expansion domain, where the main action corresponding to the first utterance element and the component slot corresponding to the extracted second utterance element are matched to each other is detected, and detect a candidate domain where the main action corresponding to the first utterance element and the component slot corresponding to the second utterance element matched to each other, when the expansion domain is not detected.