Specifying trip destinations from spoken dialogs

US11501754B2 · kind B2 · utility

Assignee

• BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD. · CN

Inventors

• Kevin Knight · Grosse Isle, CA
• Arkady Arkhangorodsky · Los Angeles, US
• Amittai Axelrod · Los Angeles, US
• Christopher Chu · Lakewood, US
• Scot FANG · Los Angeles, US
• Yiqi Huang · Shanghai, CN
• Ajay Nagesh · Los Angeles, US
• Xing Shi · Beijing, CN
• Boliang Zhang · Los Angeles, US

Key dates

• Filing date: Jul 7, 2020
• Grant date: Nov 15, 2022
• Expiry date: Feb 2, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G10L15/22
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Desired vehicle destinations may be determined from spoken dialogs. A speech input may be received from a user through a voice user interface. Current utterance variables may be obtained by tokenizing the user speech input. One or more of a plurality of utterance templates for a reply to the user speech input may be determined by a trained automatic agent based on the plurality of current utterance variables. One of a plurality of Application Programming Interfaces (API) to call and one or more parameters for the API to call with may be determine by the trained automatic agent based on the plurality of current utterance variables. A response may be obtained from the API call. A context string for the reply to the user speech input by the trained automatic agent may be constructed based on the utterance templates and the response of the API call.