Speech recognition on board of an aircraft

Patent metadata

Field	Value
Publication number	US-2016372117-A1
Application number	US-201615184302-A
Country	US
Kind code	A1
Filing date	Jun 16, 2016
Priority date	Jun 18, 2015
Publication date	Dec 22, 2016
Grant date	—

Abstract

A method of performing speech recognition on board an aircraft, a computer program for executing the method, as well as a speech recognition unit for performing speech recognition on board an aircraft. The method comprises receiving a speech signal spoken by a user; performing speaker recognition on the speech signal to identify the user from the speech signal; selecting a speech recognition user profile which is associated with the identified user; and performing speech recognition on the speech signal using the selected user profile.

First claim

1 . A method of performing speech recognition on board of an aircraft, comprising:
receiving a speech signal spoken by a user; performing speaker recognition on the speech signal to identify the user from the speech signal; selecting a speech recognition user profile which is associated with the identified user; and performing speech recognition on the speech signal using the selected user profile.

2 . The method of claim 1 , wherein performing speech recognition includes converting the speech signal into a text message to be displayed to at least one passenger in a cabin of the aircraft.

3 . The method of claim 1 , wherein performing speech recognition includes converting the speech signal into a control command used to control a cabin management system of the aircraft.

4 . The method of claim 1 , wherein speaker recognition is performed on a first portion of the speech signal and speech recognition is performed on a remaining portion of the speech signal.

5 . The method of claim 4 , wherein the first portion of the speech signal corresponds to an identification phrase of the user.

6 . The method of claim 1 , wherein speaker recognition is performed on a first portion of the speech signal and speech recognition is performed on the first portion of the speech signal and a remaining portion of the speech signal.

7 . The method of claim 1 , the method further comprising:
downloading, prior to receiving the speech signal, a plurality of speech recognition user profiles from a remote source, wherein the selected user profile is selected among the plurality of speech recognition user profiles.

8 . The method of claim 1 , the method further comprising:
downloading the selected user profile from a remote source.

9 . The method of claim 1 , wherein speaker recognition is performed based on speaker recognition data, the speaker recognition data including at least one of voice characteristics of the user, pronunciation characteristics of the user, a vocabulary characteristic to the user, and probabilities of occurrences of at least one of words, phrases and formulations in the language commonly used by the user.

10 . The method of claim 9 , wherein the speaker recognition data is updated while performing speech recognition on the speech signal.

11 . The method of claim 1 , wherein at least one of speaker recognition and speech recognition is performed based on a vocabulary limited to terms relating to a cabin of the aircraft or situations around the cabin of the aircraft.

12 . The method of claim 11 , wherein the vocabulary is specific to at least one of a user and a user group.

13 . A non-transitory computer-readable medium storing instructions executable by a computer processor for signaling speech signal related test messages on board an aircraft, comprising instructions to:
receiving a speech signal spoken by a user; perform speaker recognition on the speech signal to identify the user from the speech signal; select a speech recognition user profile which is associated with the identified user; and perform speech recognition on the speech signal using the selected user profile.

14 . A speech recognition unit for performing speech recognition on board of an aircraft, wherein the speech recognition unit comprises:
a receiving component configured to receive a speech signal spoken by a user; a speaker recognition component configured to perform speaker recognition on the speech signal to identify the user from the speech signal; a selecting component configured to select a speech recognition user profile which is associated with the identified user; and a speech recognition component configured to perform speech recognition on the speech signal using the selected user profile.

Assignees

• Airbus Operations Gmbh

Inventors

• Klose Peter
• Luedtke Michael

Classifications

• G10L15/26 Primary

  Speech to text systems (G10L15/08 takes precedence) · CPC title

• G10L2015/0635

  updating or merging of old and new templates; Mean values; Weighting · CPC title

• G10L15/063

  Training · CPC title

• G10L15/22

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

• G10L17/06 Primary

  Decision making techniques; Pattern matching strategies · CPC title