Method and apparatus for performing noise control in a telematics system

• US 7,171,242 B2
• Filed: 07/18/2003
• Issued: 01/30/2007
• Est. Priority Date: 07/18/2003
• Status: Expired due to Fees

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Technical Center North America Incorporated (Nissan Motor Co., Ltd.)
• Inventors: Bai, Sue, Kobayashi, Junichi
• Primary Examiner(s): Anderson; Matthew
• Assistant Examiner(s): DAO, MINH D
• Application Number:
  US10/621,320
• Publication Number:
  US 20050014487A1
• Time in Patent Office: 1,292 Days
• Field of Search: 455/563, 455/401, 455/3.06, 455/501, 455/63.11, 455/67.11, 455/575.9
• US Class Current: 455/563
• CPC Class Codes: H04M 1/271 controlled by voice recognition
• CPC Class Codes: H04M 1/6091 including a wireless interface
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 99/00 Subject matter not provided for in other groups of this subclass

Abstract

A method and apparatus for accessing information in a wireless network is provided by determining whether a wireless connection from a mobile platform to a server is a phone call or a telematics call, selecting one of a phone call filter and a telematics filter based on the wireless connection determination, and filtering a voice signal for the wireless connection with the selected filter. The method and apparatus provides techniques for adapting a noise cancellation ratio to different types of wireless connections, including a hands-free phone mode and a telematics mode.

Claims

1. A telematics communication system for a mobile platform, comprising:

a wireless communicator for wirelessly communicating with a service provider; and

a controller electrically coupled to the wireless communicator,

wherein the controller is adapted to perform the following for a wireless connection from a mobile platform to the service provider;

to determine whether the wireless connection is a phone call or an integrated voice recognition (IVR) call;

to select one of a phone call filter when it is determined that the wireless connection is the phone call and an IVR filter when it is determined that the wireless connection is the IVR call based on the wireless connection determination; and

to filter a voice signal for the wireless connection with the selected filter, and wherein a noise level specification filtered by the IVR filter is less than a noise level specification filtered by the phone call filter.

2. The telematics communication system of claim 1, wherein the mobile platform comprises an automobile.

3. The telematics communication system of claim 1, wherein the wireless communicator comprises at least one of a radio transmitter/receiver, a cellular transmitter/receiver, and a satellite transmitter/receiver.

4. The telematics communication system of claim 1, wherein the controller is further adapted to perform the following at least upon termination of the wireless connection from the mobile platform to the service provider:

to determine whether a subsequent wireless connection is required;

to determine whether any subsequent wireless connection is a phone call or an IVR call;

to select one of the phone call filter and the IVR filter based on the subsequent wireless connection determination; and

to filter a voice signal for the subsequent wireless connection with the subsequently selected filter.

5. The telematics communication system of claim 1, wherein the controller is further adapted:

to determine whether a filter adjustment is required; and

if filter adjustment is required, to change a filter parameter of the selected filter.

6. The telematics communication system of claim 5, wherein the filter parameter comprises one of a noise cancellation ratio, an echo cancellation ratio, a talking volume adjustment, and a filter slope.

7. The telematics communication system of claim 1, wherein the controller is further adapted:

to determine whether a filter adjustment is required; and

if filter adjustment is required, to select a subsequent filter, and wherein the controller filters the wireless connection with the subsequent filter.

8. The telematics communication system of claim 1, wherein the phone call is a hands-free phone call.

9. The telematics communication system of claim 1, wherein the noise level specification comprises at least one of a noise cancellation ratio, an echo cancellation ratio, a talking volume adjustment, and a filter slope.

10. The telematics communication system of claim 1, wherein the voice signal includes a user'"'"'s voice.

11. A method of exchanging information in a wireless network, comprising:

determining whether a wireless connection from a mobile platform to a server is a phone call or an integrated voice recognition (IVR) call;

selecting one of a phone call filter when it is determined that the wireless connection is the phone call and an IVR filter when it is determined that the wireless connection is the IVR call based on the wireless connection determination; and

filtering a voice signal for the wireless connection with the selected filter and

wherein a noise level specification filtered by the IVR filter is less than a noise level specification filtered by the phone call filter.

12. The method of claim 11, further comprising:

initiating the wireless connection from the mobile platform to the server.

13. The method of claim 12, wherein initiating the wireless connection comprises:

selecting the IVR call;

transmitting a user identification (ID) to the server; and

verifying the user identification (ID) on the server.

14. The method of claim 11, wherein the mobile platform comprises an automobile.

15. The method of claim 11, wherein the wireless connection comprises at least one of a radio channel, a cellular channel, and a satellite channel.

16. The method of claim 11, further comprising, upon termination of the wireless connection:

determining whether a subsequent wireless connection is required;

determining whether any subsequent wireless connection is a phone call or an IVR call;

selecting one of the phone call filter and the IVR filter based on the subsequent wireless connection determination; and

filtering a voice signal for the subsequent wireless connection with the subsequently selected filter.

17. The method of claim 11, further comprising:

determining whether a filter adjustment is desired; and

if filter adjustment is desired, changing a filter parameter of the selected filter.

18. The method of claim 17, wherein the filter parameter comprises one of a noise cancellation ratio, an echo cancellation ratio, a talking volume adjustment, and a filter slope.

19. The method of claim 11, further comprising:

determining whether a filter adjustment is desired; and

if filter adjustment is desired, selecting a subsequent filter,

wherein filtering the wireless connection filters the wireless connection with the subsequent filter.

20. A telematics communication system, comprising:

means for wirelessly communicating between a mobile platform and a server; and

means for selectively filtering a voice signal for the wireless communication with one of a phone call filter and an integrated voice recognition (IVR) filter, wherein a noise level specification filtered by the IVR filter is less than a noise level specification filtered by the phone call filter.

21. The telematics communication system of claim 20, wherein the mobile platform comprises an automobile.

22. The telematics communication system of claim 20, wherein the means for wirelessly communicating communicates via one of a radio channel, a cellular channel, and a satellite channel.