US 12,131,737 B2
Voice recognition device and voice recognition method
Mika Sugimoto, Kanagawa (JP)
Assigned to Nissan Motor Co., Ltd., Yokohama (JP)
Appl. No. 17/910,378
Filed by Nissan Motor Co., Ltd., Yokohama (JP)
PCT Filed Mar. 19, 2020, PCT No. PCT/JP2020/012349
§ 371(c)(1), (2) Date Sep. 9, 2022,
PCT Pub. No. WO2021/186679, PCT Pub. Date Sep. 23, 2021.
Prior Publication US 2023/0139640 A1, May 4, 2023
Int. Cl. G10L 15/22 (2006.01); B60H 1/00 (2006.01); B60Q 3/80 (2017.01); B60R 25/31 (2013.01); E05F 15/73 (2015.01); G06F 40/20 (2020.01); G06F 40/30 (2020.01); G10L 15/18 (2013.01); G10L 15/28 (2013.01)
CPC G10L 15/22 (2013.01) [B60H 1/00757 (2013.01); B60Q 3/80 (2017.02); B60R 25/31 (2013.01); E05F 15/73 (2015.01); G06F 40/20 (2020.01); G06F 40/30 (2020.01); G10L 15/1815 (2013.01); G10L 15/28 (2013.01); E05Y 2400/45 (2013.01); E05Y 2400/85 (2013.01); E05Y 2900/531 (2013.01); E05Y 2900/548 (2013.01); E05Y 2900/55 (2013.01); G10L 2015/223 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A voice recognition device that receives a request to control devices installed in a moving body, based on an instruction voiced by a user, the voice recognition device comprising:
a speech acquisition unit configured to acquire speech;
a speech data conversion unit configured to convert the speech acquired by the speech acquisition unit into speech data;
a control target device identification unit configured to analyze the speech data converted by the speech data conversion unit to identify a control target device to be operated;
a detection mode setting unit configured to set either a first detection mode that analyzes the speech data by natural language recognition, or a second detection mode for determining whether the speech data match a predefined control request text, as a detection mode for identifying the control request corresponding to the speech data in accordance with the control target device identified by the control target device identification unit; and
a control request identification unit configured to analyze the speech data to identify the control request with respect to the control target device, based on the detection mode set by the detection mode setting unit.