Active noise cancellation apparatus and method for improving voice recognition performance
First Claim
1. A vehicle active noise cancellation (ANC) apparatus comprising:
- an ANC controller including memory for being operably coupled to at least one error microphone, the ANC controller being configured to;
receive a first signal indicative of environmental noise that propagates through a vehicle cabin and that is received at a voice recognition (VR) microphone;
generate a noise cancellation wave to remove the environmental noise, the noise cancellation wave being received at the VR microphone;
receive an audio output from the at least one error microphone that is at least indicative of the environmental noise and the noise cancellation wave received at the VR microphone; and
apply at least one correction filter from the memory to the audio output to remove the environmental noise and the noise cancellation wave that is received at the VR microphone; and
generate a virtual error microphone when the at least one error microphone is positioned proximate to the VR microphone.
1 Assignment
0 Petitions
Accused Products
Abstract
In at least one embodiment, a vehicle active noise cancellation (ANC) apparatus including an ANC controller is disclosed. The ANC controller is operably coupled to at least one error microphone. The ANC controller is configured to receive a first signal indicative of environmental noise that propagates through a vehicle cabin and that is received at a voice recognition (VR) microphone and to generate a noise cancellation wave to remove the environmental noise, the noise cancellation wave being received at the VR microphone. The ANC controller is configured to receive an audio output from the at least one error microphone that is at least indicative of the environmental noise and the noise cancellation wave received at the VR microphone and to apply at least one correction filter to the audio output to remove the environmental noise and the noise cancellation wave that is received at the VR microphone.
13 Citations
20 Claims
-
1. A vehicle active noise cancellation (ANC) apparatus comprising:
an ANC controller including memory for being operably coupled to at least one error microphone, the ANC controller being configured to; receive a first signal indicative of environmental noise that propagates through a vehicle cabin and that is received at a voice recognition (VR) microphone; generate a noise cancellation wave to remove the environmental noise, the noise cancellation wave being received at the VR microphone; receive an audio output from the at least one error microphone that is at least indicative of the environmental noise and the noise cancellation wave received at the VR microphone; and apply at least one correction filter from the memory to the audio output to remove the environmental noise and the noise cancellation wave that is received at the VR microphone; and generate a virtual error microphone when the at least one error microphone is positioned proximate to the VR microphone. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
8. A method for performing active noise cancellation (ANC) in a vehicle, the method comprising:
-
receiving a first signal indicative of environmental noise that propagates through a vehicle cabin at a voice recognition (VR) microphone; generating a noise cancellation wave to remove the environmental noise, receiving the noise cancellation wave at the VR microphone; receiving an audio output from at least one error microphone positioned in the vehicle that is at least indicative of the environmental noise and the noise cancellation wave received at the VR microphone; and applying at least one correction filter to the audio output to remove the environmental noise and the noise cancellation wave that is received at the VR microphone; and electronically generating a virtual VR error microphone when the at least one error microphone is positioned proximate to the at least one error microphone. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. An active noise cancellation (ANC) apparatus comprising:
-
a memory; and an ANC controller including a virtual voice recognition (VR) error microphone that is stored on the memory, the ANC controller for being operably coupled to at least one error microphone, the ANC controller being configured to; receive a first signal indicative of environmental noise that propagates through an enclosure and that is received at a VR microphone; generate a noise cancellation wave to remove the environmental noise, the noise cancellation wave being received at the VR microphone; receive an audio output from the at least one error microphone that is at least indicative of the environmental noise and the noise cancellation wave received at the VR microphone; apply at least one correction filter from the memory to the audio output to remove the environmental noise and the noise cancellation wave that is received at the VR microphone; and generate the virtual VR error microphone when the at least one error microphone is positioned proximate to the VR microphone. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification