Dynamic tuning of hands-free algorithm for noise and driving conditions

• US 7,634,095 B2
• Filed: 02/23/2004
• Issued: 12/15/2009
• Est. Priority Date: 02/23/2004
• Status: Active Grant

• Current Assignee: General Motors LLC (General Motors Company)
• Original Assignee: General Motors Company
• Inventors: Arun, Uma
• Primary Examiner(s): Faulk; Devona E
• Application Number:
  US10/784,569
• Publication Number:
  US 20050187763A1
• Time in Patent Office: 2,122 Days
• Field of Search: 381/57, 381/107, 381/71.4, 455/238.1
• US Class Current: 381/86
• CPC Class Codes: B60R 2325/205 Mobile phones
• 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
• CPC Class Codes: G10L 21/0208 Noise filtering
• CPC Class Codes: H04M 1/6075 adapted for handsfree use in a vehicle H04M1/6058 takes precedence; arrangements for holding telephones in a vehicle B60R11/0241

Abstract

A method of tuning a hands-free system in a mobile vehicle, the method including receiving a plurality of vehicle condition inputs, creating a noise parameter based on the vehicle condition inputs and adjusting a noise suppression algorithm of the hands-free system based on the created noise parameter.

Claims

1. A method of tuning a hands-free system in a mobile vehicle, the method comprising:

receiving a plurality of vehicle condition inputs, including at least one road input based on global positioning coordinates, via a vehicle communication bus;

creating a noise parameter based on the vehicle condition inputs; and

adjusting a noise suppression algorithm of the hands-free system based on the created noise parameter;

wherein the road input is received from a call center using at least one of the group consisting of a wireless carrier system, a communication network and a land network.

2. A method of tuning a hands-free system in a mobile vehicle, the method comprising:

determining if the mobile vehicle has moved onto a new road based on a GPS location;

sending the GPS location to a call center based on the determination;

receiving a road input from the call center in response to the sending; and

adjusting a noise parameter for the hands-free system based on the received road input.

3. The method of claim 2 further comprising adjusting the noise suppression algorithm in response to at least one of the group consisting of an internal vehicle climate, an external vehicle climate, an audio-device modification, a change in the level of sound emitted by a vehicle engine component, an internal vehicle condition, and an external vehicle condition.

4. The method of claim 2 wherein the road input is received from the call center using at least one of the group consisting of a wireless carrier system, a communication network and a land network.

5. A method of tuning a hands-free system in a mobile vehicle, the method comprising:

receiving a GPS location from the mobile vehicle at a call center;

determining a road input based on the received GPS location and a geographic information systems database; and

sending the road input from the call center to the mobile vehicle.

6. The method of claim 5 wherein the road input is received from the call center using at least one of the group consisting of a wireless carrier system, a communication network and a land network.