Granted Patent B2

US 7,634,357 · App. 12/057,984 · Granted Dec 15, 2009

Abstract

Claims (51)

1. A method of providing navigational information comprising:

processing destination information spoken by a user of a mobile processing system;

transmitting the processed voice information via a wireless link to a remote data center;

analyzing the processed voice information with a voice recognition system at the remote data center to recognize components of the destination information spoken by the mobile system user;

generating at the remote data center a list of hypothetical recognized components of the destination information listed by confidence levels as calculated for each component of the destination information analyzed by the voice recognition system;

displaying the list of hypothetical recognized components and confidence levels at the remote data center for selective checking by a human data center operator;

selecting a set of hypothetical components based on the confidence levels in the list;

confirming the accuracy of the selected set of hypothetical recognized components of the destination information via interactive voice exchanges between the mobile system user and the remote data center;

determining a destination from confirmed components of the destination information;

generating route information to the destination at the remote data center; and

transmitting the route information to the mobile processing system from the remote data center via the wireless link.

2. The method according to claim 1 , where confirming the accuracy of the hypothetical recognized components of the destination information comprises:

transmitting a computer-generated representation of at least one hypothetical recognized component of the destination information to the mobile system user via the wireless link; and

prompting the mobile system user via the wireless link to aurally confirm the accuracy of the component of the destination information.

3. The method according to claim 1 , wherein confirming the accuracy of the hypothetical recognized components of the destination information comprises:

transmitting at least one recorded hypothetical recognized component of the destination information spoken by the mobile system user to the mobile system user via the wireless link; and

prompting the mobile system user via the wireless link to aurally confirm the accuracy of the hypothetical recognized component of the voice destination information.

4. The method according to claim 2 , wherein confirming the accuracy of the hypothetical recognized components of the desired destination comprises:

determining if a confidence level of hypothetical recognized component is above a selected threshold; and

computer generating a representation of the hypothetical recognized component for transmission to the mobile system user when the confidence level is above the selected threshold.

5. The method according to claim 1 , wherein determining the destination from the confirmed components comprises providing human data center operator assistance using the developed list of hypothetical recognized components and confidence levels to recognize the desired destination.

6. The method according to claim 1 , wherein confirming the accuracy of the hypothetical recognized components of the desired destination via interactive voice exchanges comprises transmitting aural representations of hypothetical recognized components of the destination information to the mobile system user, the hypothetical recognized components of the destination information selected from the group consisting of aural representations of the destination address number, street name, city, state, and point of interest.

7. The method according to claim 5 , wherein providing data center operator assistance comprises;

playing back recorded representations of the destination information spoken by the mobile system user to the data center operator for analysis by the data center operator; and

receiving information from the data center operator identifying the destination.

8. The method according to claim 7 , wherein receiving information from the data center operator comprises:

entering a choice from the displayed list of hypothetical components from the data center operator.

9. The method according to claim 1 , wherein generating route information comprises generating route information from global positioning system information received by the data center from the mobile processing system.

10. A system for providing navigational information comprising:

a mobile system for processing and transmitting via a wireless link spoken requests from a mobile system user for navigational information to a selected destination; and

a data center for processing the spoken requests for navigational information received via the wireless link and operable to:

perform automated voice recognition processing on the spoken requests for navigational information to recognize destination components of the spoken requests;

confirm the recognized destination components through interactive speech exchanges with the mobile system user via the wireless link and the mobile system;

selectively allow human data center operator intervention to assist in identifying the selected recognized destination components having a recognition confidence below a selected threshold value; and

download navigational information to the desired destination for transmission to the mobile system derived from the confirmed destination components.

11. The system according to claim 10 , wherein the data center is further operable to download the navigational information in response to position information received from the mobile system via the wireless link.

12. The system according to claim 10 , wherein the data center is further operable to:

generate a list of possible destination components corresponding to the spoken requests;

assign a confidence score for each of the possible destination components on the list;

determine if a possible destination component with a highest confidence score has a confidence score above a threshold; and

computer-generate an aural representation of the destination for transmission to the mobile system for confirmation by the mobile system user if the confidence score is above the threshold.

13. The system according to claim 10 , wherein the data center is further operable to:

determine that at least one destination component of the spoken request has a recognition confidence value below a threshold; and

playback a recording in the voice of the mobile system user of at least the component with the recognition confidence value below the threshold to the mobile system user via the mobile system for confirmation.

14. The system according to claim 13 , wherein the data center further comprises a data center operator facility for playing-back the destination components for assisting in identifying the desired destination.

15. The system according to claim 10 , wherein a selected spoken request comprises a spoken request for point of interest information.

16. The system according to claim 15 , wherein the point of interest information includes information selected from the group consisting of names and categories.

17. The system according to claim 10 , wherein the destination components of a selected spoken request comprises location information selected from the group consisting of information identifying state, city, street name, and address number.

18. The system according to claim 10 , wherein the data center is further operable to record the spoken requests as normalized audio wave fields for subsequent playback.

19. The system according to claim 13 , wherein the data center is further operable to present a list of possible destinations listed by confidence scores to the data center operator for selection as the desired destination.

20. The system according to claim 19 , wherein the data center is further operable to allow the data center operator to vary the order of the possible destinations in the list.

Assignments (9)