METHODS AND SYSTEMS FOR DETERMINING AND USING A CONFIDENCE LEVEL IN SPEECH SYSTEMS

• US 20170330560A1
• Filed: 05/10/2016
• Published: 11/16/2017
• Est. Priority Date: 05/10/2016
• Status: Active Application

• Current Assignee: Honeywell/Ifl Patent Services
• Original Assignee: Honeywell International Inc.
• Inventors: Wang, Guoqing, Jiang, Chuan, Tian, Kai, Yang, Wei
• Granted Patent: US 10,276,159 B2
• Time in Patent Office: Days
• CPC Class Codes: G10L 15/183 using context dependencies, e.g. language models
• CPC Class Codes: G10L 15/22 Procedures used during a speech recognition process, e.g. man-machine dialogue
• CPC Class Codes: G10L 2015/228 of application context

Abstract

Methods and systems are provided for processing speech inputs for a controlling one or more vehicle systems of a vehicle. In one embodiment, a method includes: receiving speech input from an audio channel; performing, by a processor, speech recognition on the speech input to obtain recognized results; determining, by a processor, an accuracy level of the audio channel based on a comparison of the recognized results and predictive phraseology; determining, by a processor, an integrity level of the audio channel based on situational awareness information; communicating the recognized results, accuracy level, and the integrity level to a vehicle system; and selectively using the recognized results by the vehicle system based on the accuracy level and the integrity level.

Claims

1. A method of processing speech inputs for a controlling one or more vehicle systems of a vehicle, comprising:

receiving speech input from an audio channel;

performing, by a processor, speech recognition on the speech input to obtain recognized results;

determining, by a processor, an accuracy level of the audio channel based on a comparison of the recognized results and predictive phraseology;

determining, by a processor, an integrity level of the audio channel based on situational awareness information;

communicating the recognized results, accuracy level, and the integrity level to a vehicle system; and

selectively using the recognized results by the vehicle system based on the accuracy level and the integrity level.

2. The method of claim 1, wherein the determining the integrity level is performed based on the performance of the determining the accuracy level.

3. The method of claim 2, further comprising maintaining the accuracy level while updating the integrity level.

4. The method of claim 3, further associating a descriptive label with the integrity level, and wherein the communicating further comprises communicating the descriptive label.

5. The method of claim 4, further comprising determining the descriptive label based on a cause for the update in the integrity level.

6. The method of claim 4, further comprising determining the descriptive label based on the situational awareness information.

7. A system for processing speech inputs for a controlling one or more vehicle systems of a vehicle, comprising:

a non-transitory computer readable medium comprising;

a first module that performs, by a processor, speech recognition on a speech input received from an audio channel to obtain recognized results;

a second module that determines, by a processor, an accuracy level of the audio channel based on a comparison of the recognized results and predictive phraseology; and

a third module that determines, by a processor, an integrity level of the audio channel based on situational awareness information, and that communicates the recognized results, the accuracy level, and the integrity level to a vehicle system.

8. The system of claim 7, further comprising a vehicle system that receives the recognized results, accuracy level, and the integrity level and that selectively uses the recognized results based on the accuracy level and the integrity level.

9. The system of claim 7, wherein the third module performs the determining of the integrity level based on the performance of the determining the accuracy level.

10. The system of claim 9, wherein the second module further maintains the accuracy level while the third module further updates the integrity level.

11. The system of claim 7, wherein the third module associates a descriptive label with the integrity level, and communicates the descriptive label to the vehicle system.

12. The system of claim 11, wherein the third module determines the descriptive label based on a cause for the update in the integrity level.

13. The system of claim 11, wherein the third module determines the descriptive label based on the situational awareness information.

14. An aircraft, comprising:

a speech input device that receives speech from a user;

a plurality of speech dependent aircraft systems that process the speech from the user; and

a non-transitory computer readable medium, comprising;

a first module that performs, by a processor, speech recognition on a speech input received from the speech input device to obtain recognized results;

a second module that determines, by a processor, an accuracy level based on a comparison of the recognized results and predictive phraseology; and

a third module that determines, by a processor, an integrity level based on aircraft situational awareness information, and that communicates the recognized results, the accuracy level, and the integrity level to at least one of the plurality of speech dependent aircraft systems.

15. The aircraft of claim 14, wherein the at least one of the plurality of speech dependent aircraft systems selectively uses the recognized results based on the accuracy level and the integrity level.

16. The aircraft of claim 14, wherein the third module performs the determining of the integrity level based on the performance of the determining the accuracy level.

17. The aircraft of claim 16, wherein the second module further maintains the accuracy level while the third module further updates the integrity level.

18. The aircraft of claim 14, wherein the third module associates a descriptive label with the integrity level, and communicates the descriptive label to the at least one of the plurality of speech dependent aircraft systems.

19. The aircraft of claim 18, wherein the third module determines the descriptive label based on a cause for the update in the integrity level.

20. The aircraft of claim 18, wherein the third module determines the descriptive label based on the aircraft situational awareness information.