Voice input assistance device, voice input assistance system, and voice input method

A voice input assistance system, comprising:

• a server apparatus;
• and
• a voice input assistance device communicably connected to the server apparatus, wherein:
• the server apparatus comprises:
• an utterance track record storing unit configured to store a track record of utterance information in association with a state of a vehicle to which the voice input assistance device belongs;
• an uttered phrase accumulation unit configured to acquire the utterance information from the voice input assistance device along with information for indicating the state of the vehicle to which the voice input assistance device belongs, and to accumulate the utterance information and the information for indicating the state of the vehicle in the utterance track record storing unit;
• and
• a frequently-uttered phrase identification unit configured to extract, when receiving the information for indicating the state of the vehicle from the voice input assistance device, the utterance information having a high utterance frequency, which is associated with the state of the vehicle, from the utterance track record storing unit, and to transmit the utterance information to the voice input assistance device;
• and
• the voice input assistance device comprises:
• a shortened-phrase storing unit configured to store an operation item and a shortened phrase corresponding to a desirability of the operation item in association with each other;
• a desirability estimation unit configured to transmit the information for indicating the state of the vehicle to the server apparatus, to estimate the utterance information having a high utterance frequency, which is transmitted from the server apparatus, and the utterance frequency as a desired operation item and the desirability of the desired operation item, respectively, and to identify the shortened phrase from the shortened-phrase storing unit based on the desirability;
• and
• an output processing unit configured to present the shortened phrase identified by the desirability estimation unit.

A voice input method, which is conducted through use of a voice input assistance device,

• the voice input assistance device comprising:
• a shortened-phrase storing unit configured to store an operation item and a shortened phrase corresponding to a desirability of the operation item in association with each other;
• and
• a control unit,
• the voice input method, which is conducted by the control unit, comprising:
• a desirability estimation step of estimating the desirability of each operation item through use of a predetermined index, and identifying the shortened phrase from the shortened-phrase storing unit based on the desirability;
• and
• an output processing step of presenting the shortened phrase identified in the desirability estimation step.