METHOD FOR ADJUSTING A VOICE RECOGNITION SYSTEM COMPRISING A SPEAKER AND A MICROPHONE, AND VOICE RECOGNITION SYSTEM

• US 20110301954A1
• Filed: 06/03/2010
• Published: 12/08/2011
• Est. Priority Date: 06/03/2010
• Status: Active Grant

• Current Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Original Assignee: Johnson Controls Technology Company (Johnson Controls International plc)
• Inventors: Sims, Michael J., Douthitt, Brian L., Zeinstra, Mark, Ringold, Ted W., Klamer, Douglas W., Anderson, Elisabet A., Hughes, David J., Witters, Todd
• Granted Patent: US 10,115,392 B2
• Time in Patent Office: Days
• US Class Current: 704/246
• CPC Class Codes: G10L 15/065 Adaptation
• CPC Class Codes: G10L 15/20 Speech recognition techniques specially adapted for robustness in adverse environments, e.g. in noise, of stress induced speech G10L21/02 takes precedence

Abstract

A method for adjusting a voice recognition system and a voice recognition system is disclosed, wherein the voice recognition system comprises a speaker and a microphone, and wherein the method comprises the steps of:

• • memorizing an audio frequency signal,
  • playing back the audio frequency signal by means of the speaker,
  • generating a detection signal by detecting the audio frequency signal by means of the microphone, and
  • adjusting parameters of the voice recognition system dependent on the detection signal.

Claims

1. Method for adjusting a voice recognition system comprising a speaker and a microphone, the method comprising the steps of:

memorizing an audio frequency signal,

playing back the audio frequency signal by means of the speaker,

generating a detection signal by detecting the audio frequency signal by means of the microphone, and

adjusting parameters of the voice recognition system dependent on the detection signal.

2. Method according to claim 1, wherein the voice recognition system is an in-vehicle voice recognition system and wherein the audio frequency signal is played back within the vehicle and wherein the audio frequency signal is detected within the vehicle.

3. Method according to claim 2, wherein the adjustment of parameters of the voice recognition system includes an adjustment of the gain of an amplifier associated to the microphone.

4. Method according to claim 2, wherein the adjustment of parameters of the voice recognition system includes an adjustment of the gain of an amplifier associated to the speaker.

5. Method according to claim 2, wherein the audio frequency signal is an audio prompt signal, wherein the audio frequency signal is recognized by the voice recognition system.

6. Method according to claim 2, wherein the audio frequency signal is an audio prompt signal prompting for a user input signal, wherein the user input signal is recognized by the voice recognition system.

7. Voice recognition system comprising a speaker and a microphone, wherein an audio frequency signal is stored in a memory device assigned to the voice recognition system, wherein parameters of the voice recognition system are adjusted dependent on a detection signal generated by means of the microphone, wherein the detection signal corresponds to the audio frequency signal played back by means of the speaker.

8. Voice recognition system according to claim 7, wherein the Voice recognition system is an in-vehicle voice recognition system.

9. Voice recognition system according to claim 8, wherein the in-vehicle voice recognition system is fixedly built in the vehicle.

10. Voice recognition system according to claim 8, wherein the in-vehicle voice recognition system is fixedly built in the vehicle by the Original Equipment Manufacturer (OEM).