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Voice operating system, server device, on-vehicle device, and voice operating method

  • US 10,540,969 B2
  • Filed: 07/21/2016
  • Issued: 01/21/2020
  • Est. Priority Date: 08/10/2015
  • Status: Active Grant
First Claim
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1. A voice operating system comprising:

  • an on-vehicle device; and

    a server device capable of communicating with the on-vehicle device, whereinthe on-vehicle device comprises;

    a voice-input accepting unit configured to accept input information in voice;

    a vehicle-environment-information management unit configured to acquire vehicle-environment information specifying an environment of a vehicle provided with the on-vehicle device; and

    an output control unit configured to transmit the input information and the vehicle-environment information to the server device, then output an execution task candidate received from the server device together with an estimated misrecognition factor of voice recognition, and transmit, when accepting execution permission of the execution task candidate, an instruction to execute the execution task candidate to the server device, andthe server device comprises;

    a voice-data processing unit configured to convert, when accepting the input information and the vehicle-environment information from the on-vehicle device, the input information into a character string;

    a task estimation unit configured to specify the execution task candidate corresponding to the character string into which the voice-data processing unit converts the input information, reliability using the input information and the vehicle-environment information, and the estimated misrecognition factor if any;

    a user-confirmation-necessity determination unit configured to transmit, when the reliability is less than a predetermined value, the estimated misrecognition factor of the voice recognition and the execution task candidate to the on-vehicle device; and

    a task processing unit configured to execute the execution task candidate;

    whereinthe on-vehicle device further comprisesa task-estimation-result-history management unit configured to manage a history of the execution task candidate,the task-estimation-result-history management unit stores the execution task candidate received by the output control unit, andthe task estimation unit excludesthe execution task candidate stored in the task-estimation-result-history management unit in processing for specifying the execution task candidate.

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