System and method for correcting accent induced speech in an aircraft cockpit utilizing a dynamic speech database

Patent metadata

Field	Value
Publication number	US-9299340-B2
Application number	US-201314047518-A
Country	US
Kind code	B2
Filing date	Oct 7, 2013
Priority date	Oct 7, 2013
Publication date	Mar 29, 2016
Grant date	Mar 29, 2016

Abstract

A system and method for recognizing speech on board an aircraft that compensates for different regional dialects over an area comprised of at least first and second distinct geographical regions, comprises analyzing speech in the first distinct geographical region using speech data characteristics representative of speech in the first distinct geographical region, detecting a change in position from the first distinct geographical region to the second geographical region, and analyzing speech in the second distinct geographical region using speech data characteristics representative of speech in the second distinct geographical region upon detecting that the aircraft has transitioned from the first distinct geographical region to the second distinct geographical region.

First claim

What is claimed is:

1. A method, executable by a processor, for recognizing speech in a speech recognition system on board an aircraft that compensates for different regional dialects over an area comprised of at least first and second distinct geographical regions, the method comprising:
analyzing speech in the first distinct geographical region using speech data characteristics representative of speech in the first distinct geographical region, wherein analyzing the speech data characteristics comprises referencing at least one of an acoustic model, a phonetic dictionary, and a language model in the speech recognition system on board of the aircraft;
detecting a change in position from the first distinct geographical region to the second geographical region; and
analyzing speech in the second distinct geographical region using speech data characteristics representative of speech in the second distinct geographical region upon detecting that the aircraft has transitioned from the first distinct geographical region to the second distinct geographical region.

2. The method of claim 1 wherein the first distinct geographic region corresponds to an initial position of the aircraft.

3. The method of claim 1 further comprising:
listening to air traffic control samples;
constructing a speech database for each distinct geographic region; and
selecting a speech database that provides the greatest accuracy.

4. The method of claim 3 wherein the speech database is selected for a flight information region (FIR) corresponding to one of an active communication frequency and a standby communication frequency.

5. The method of claim 4 further comprising loading a new speech database when the aircraft enters a new distinct geographic region.

6. A method, executable by a processor, for recognizing speech in a speech recognition system on board an aircraft that compensates for different regional dialects over an area comprised of at least first and second distinct geographical regions, the method comprising:
analyzing speech in the first distinct geographical region using speech data characteristics representative of speech in the first distinct geographical region;
detecting a change in position from the first distinct geographical region to the second geographical region; and
analyzing speech in the second distinct geographical region using speech data
characteristics representative of speech in the second distinct geographical region upon detecting that the aircraft has transitioned from the first distinct geographical region to the second distinct geographical region;
wherein each distinct geographical region is characterized by a unique aircraft communication frequency, and further comprising:
monitoring the aircraft communication frequency;
detecting a new communication frequency when the aircraft transitions from the first distinct geographical region to the second distinct geographical region; and
analyzing speech in the second distinct geographical region using the speech data characteristics representative of speech in the second distinct geographical region.

7. A method, executable by a processor, for recognizing speech in a speech recognition system on board an aircraft that compensates for different regional dialects over an area comprised of at least first and second distinct geographical regions, the method comprising:
analyzing speech in the first distinct geographical region using speech data characteristics representative of speech in the first distinct geographical region;
detecting a change in position from the first distinct geographical region to the second geographical region; and
analyzing speech in the second distinct geographical region using speech data
characteristics representative of speech in the second distinct geographical region upon detecting that the aircraft has transitioned from the first distinct geographical region to the second distinct geographical region;
wherein each distinct geographical region is characterized by a unique aircraft communication frequency, and further comprising:
monitoring the aircraft communication frequency, wherein the aircraft communication frequency is one of an active frequency and a standby frequency;
detecting a new communication frequency when the aircraft transitions from the first distinct geographical region to the second distinct geographical region; and
analyzing speech in the second distinct geographical region using the speech data characteristics representative of speech in the second distinct geographical region.

8. A method, executable by a processor, for recognizing speech in a speech recognition system on board an aircraft that compensates for different regional dialects over an area comprised of at least first and second distinct geographical regions, the method comprising:
analyzing speech in the first distinct geographical region using speech data characteristics representative of speech in the first distinct geographical region;
detecting a change in position from the first distinct geographical region to the second geographical region; and
analyzing speech in the second distinct geographical region using speech data
characteristics representative of speech in the second distinct geographical region upon detecting that the aircraft has transitioned from the first distinct geographical region to the second distinct geographical region;
wherein each distinct geographical region is characterized by a unique aircraft communication frequency, and further comprising:
monitoring the aircraft communication frequency, wherein the aircraft communication frequency is one of an active frequency and a standby frequency;
monitoring a voice feed from air traffic control;
detecting a new communication frequency when the aircraft transitions from the first distinct geographical region to the second distinct geographical region; and
analyzing speech in the second distinct geographical region using the speech data characteristics representative of speech in the second distinct geographical region.

9. A method, executable by a processor, for recognizing speech in a speech recognition system on board an aircraft that compensates for different regional dialects over an area comprised of at least first and second distinct geographical regions, the method comprising:
analyzing speech in the first distinct geographical region using speech data characteristics representative of speech in the first distinct geographical region;
detecting a change in position from the first distinct geographical region to the second geographical region; and
analyzing speech in the second distinct geographical region using speech data
characteristics representative of speech in the second distinct geographical region upon detecting that the aircraft has transitioned from the first distinct geographical region to the second distinct geographical region;
wherein each distinct geographical region is characterized by a unique aircraft communication frequency, and further comprising:
monitoring the aircraft communication frequency, wherein the aircraft communication frequency is one of an active frequency and a standby frequency;
monitoring a voice feed from air traffic control;
detecting a new communication frequency when the aircraft transitions from the first distinct geographical region to the second distinct geographical region;
analyzing speech in the second distinct geographical region using the speech data characteristics representative of speech in the second distinct geographical region; and displaying air traffic control text on a cockpit display.

10. The method of claim 9 wherein a selected speech database for a region is the one with

Assignees

• Honeywell Int Inc

Inventors

• Kar Satyanarayan
• Krishna Kiran Gopala
• Agarwal Jitender Kumar
• De Mers Robert E

Classifications

• G10L15/22

  Procedures used during a speech recognition process, e.g. man-machine dialogue · CPC title

• G10L15/07 Primary

  to the speaker · CPC title

• G08G5/21

  located onboard the aircraft · CPC title

• G08G5/26 Primary

  Transmission of traffic-related information between aircraft and ground stations · CPC title

• G08G5/0013

  Physics · mapped topic