System and method for tracking persons of interest via voiceprint

• US 8,392,196 B2
• Filed: 11/28/2011
• Issued: 03/05/2013
• Est. Priority Date: 06/13/2007
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property II LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property II LP (AT&T, Inc.)
• Inventors: De Los Reyes, Gustavo, Macwan, Sanjay
• Primary Examiner(s): AZAD, ABUL K
• Application Number:
  US13/305,053
• Publication Number:
  US 20120072218A1
• Time in Patent Office: 463 Days
• Field of Search: 704246-250, 704/273
• US Class Current: 704/273
• CPC Class Codes: G10L 17/00 Speaker identification or verification techniques
• CPC Class Codes: G10L 17/02 Preprocessing operations, e.g. segment selection; Pattern representation or modelling, e.g. based on linear discriminant analysis [LDA] or principal components; Feature selection or extraction
• CPC Class Codes: G10L 17/06 Decision making techniques; Pattern matching strategies
• CPC Class Codes: H04M 2201/41 using speaker recognition speaker recognition per se G10L17/00
• CPC Class Codes: H04M 3/2218 Call detail recording
• CPC Class Codes: H04M 3/2281 Call monitoring, e.g. for law enforcement purposes; Call tracing; Detection or prevention of malicious calls
• CPC Class Codes: H04M 3/42221 Conversation recording systems at the subscriber's set H04M1/656
• CPC Class Codes: H04M 3/4936 Speech interaction details speech recognition per se G10L15/00

Abstract

Disclosed are systems, methods, and computer readable media for tracking a person of interest. The method embodiment comprises identifying a person of interest, capturing a voiceprint of the person of interest, comparing a received voiceprint of a caller with the voiceprint of the person of interest, and tracking the caller if the voiceprint of the caller is a substantial match to the voiceprint of the person of interest.

Claims

1. A method comprising:

capturing a voiceprint associated with a caller on a call;

determining a level of association between the caller and a person related to a stored voiceprint;

comparing the voiceprint with the stored voiceprint according to a dynamic threshold of certainty, wherein the dynamic threshold of certainty is adjusted based at least in part on the level of association;

determining whether to track the caller based on whether the dynamic threshold of certainty is met, to yield a determination; and

when the determination indicates that the dynamic threshold is met, tracking the caller.

2. The method of claim 1, wherein the dynamic threshold of certainty is based on at least one of a location of the caller, a phone number, a device associated with the caller, a time of day, a content of the voiceprint, an information profile, and a person receiving the call.

3. The method of claim 1, wherein the dynamic threshold of certainty is met when a substantial match occurs according to whether the dynamic threshold is one of lowered and raised.

4. The method of claim 1, further comprising fine-tuning the stored voiceprint based on the voiceprint.

5. The method of claim 1, further comprising storing the voiceprint in a database.

6. The method of claim 1, further comprising storing external data associated with the voiceprint, wherein the external data comprises at least one of a content, a transcription, a duration, a time of day, a location, a device, a rate of movement, a phone number, a button pressed, an ambient noise, a recipient, and the caller.

7. The method of claim 1, further comprising tracking the caller based on a communications device used by the caller.

8. The method of claim 1, wherein the stored voiceprint resides on a mobile device.

9. A system comprising:

a processor; and

a computer-readable storage device having stored instructions which, when executed by the processor, cause the processor to perform a method comprising;

capturing a voiceprint associated with a caller on a call;

determining a level of association between the caller and a person related to a stored voiceprint;

comparing the voiceprint with the stored voiceprint according to a dynamic threshold of certainty, wherein the dynamic threshold of certainty is adjusted based at least in part on the level of association;

determining whether to track the caller based on whether the dynamic threshold of certainty is met, to yield a determination; and

when the determination indicates that the dynamic threshold is met, tracking the caller.

10. The system of claim 9, wherein the dynamic threshold of certainty is met when a substantial match occurs according to whether the dynamic threshold is one of lowered and raised.

11. The system of claim 9, wherein the computer-readable storage device has further instructions stored which result in the method further comprising fine-tuning the stored voiceprint.

12. The system of claim 9, wherein the computer-readable storage device has further instructions stored which result in the method further comprising storing data associated with the voiceprint in a database, wherein the external data comprises at least one of a content, a transcription, a duration, a time of day, a location, a device, a rate of movement, a phone number, a button pressed, an ambient noise, a recipient, and the caller.

13. The system of claim 9, wherein the computer-readable storage device has further instructions stored which result in the method further comprising tracking the caller based on a communications device used by the caller.

14. The method of claim 9, wherein the dynamic threshold of certainty is based on at least one of a location of the caller, a phone number, a device associated with the caller, a time of day, a content of the voiceprint, an information profile, and a person receiving the call.

15. A computer-readable storage device having stored instructions which, when executed by a computing device, cause the computing device to perform a method comprising:

capturing a voiceprint associated with a caller on a call;

determining a level of association between the caller and a person related to a stored voiceprint;

comparing the voiceprint with a stored voiceprint according to a dynamic threshold of certainty, wherein the dynamic threshold of certainty is adjusted based at least in part on the level of association;

determining whether to track the caller based on whether the dynamic threshold of certainty is met, to yield a determination; and

when the determination indicates that the dynamic threshold is met, tracking the caller.

16. The computer-readable storage device of claim 15, wherein the dynamic threshold of certainty is based on at least one of a location of the caller, a phone number, a device associated with the caller, a time of day, a content of the voiceprint, an information profile, and a person receiving the call.

17. The computer-readable storage device of claim 15, wherein the dynamic threshold of certainty is met when a substantial match occurs according to whether the dynamic threshold is one of lowered and raised.

18. The computer-readable storage device of claim 15, wherein the tangible computer-readable medium has further instructions stored which result in the method further comprising fine-tuning the stored voiceprint based on the voiceprint.

19. The computer-readable storage device of claim 15, wherein the tangible computer-readable medium has further instructions stored which result in the method further comprising storing data associated with the voiceprint in a database, wherein the data comprises at least one of a content, a transcription, a duration, a time of day, a location, a device, a rate of movement, a phone number, a button pressed, an ambient noise, a recipient, and the caller.

20. The computer-readable storage device of claim 15, wherein the tangible computer-readable medium stores further instructions which result in the method further comprising tracking the caller based on a communications device used by the caller.

21. The computer-readable storage device of claim 15, wherein the stored voiceprint resides on a mobile device.