System and method for tracking persons of interest via voiceprint

• US 8,909,535 B2
• Filed: 03/05/2013
• Issued: 12/09/2014
• 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:
  US13/785,294
• Publication Number:
  US 20130177141A1
• Time in Patent Office: 644 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 of comprising:

receiving a voiceprint associated with a caller;

determining, via a processor, a level of certainty between the voiceprint and a stored voiceprint, wherein the stored voiceprint is associated with an individual;

establishing a tracking threshold based on a relationship between the caller and a call recipient;

adjusting the tracking threshold based on data external to the voiceprint, to yield an adjusted threshold; and

when the level of certainty meets the adjusted threshold, tracking the caller.

2. The method of claim 1, wherein the level of certainty is based on 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 communicating with the caller.

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

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

5. The method of claim 4, wherein the stored voiceprint is also stored in the database.

6. The method of claim 1, further comprising storing external data associated with the voiceprint, wherein the external data comprises 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, the call recipient, and the caller.

7. The method of claim 1, wherein the tracking of the caller is performed by recording information associated with a communication device used by the caller.

8. A system comprising:

a processor; and

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

receiving a voiceprint associated with a caller;

determining a level of certainty between the voiceprint and a stored voiceprint, wherein the stored voiceprint is associated with an individual;

establishing a tracking threshold based on a relationship between the caller and a call recipient;

adjusting the tracking threshold based on data external to the voiceprint, to yield an adjusted threshold; and

when the level of certainty meets the tracking threshold, tracking the caller.

9. The system of claim 8, wherein the level of certainty is based on 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 communicating with the caller.

10. The system of claim 8, the computer-readable storage device having additional instructions stored which result in operations comprising fine-tuning the stored voiceprint based on the voiceprint.

11. The system of claim 8, the computer-readable storage device having additional instructions stored which result in operations comprising storing the voiceprint in a database.

12. The system of claim 11, wherein the stored voiceprint is also stored in the database.

13. The system of claim 8, the computer-readable storage device having additional instructions stored which result in operations comprising storing external data associated with the voiceprint, wherein the external data comprises 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, the call recipient, and the caller.

14. The system of claim 8, wherein the tracking of the caller is performed by recording information associated with a communication device used by the caller.

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

receiving a voiceprint associated with a caller;

determining a level of certainty between the voiceprint and a stored voiceprint, wherein the stored voiceprint is associated with an individual;

establishing a tracking threshold based on a relationship between the caller and a call recipient;

adjusting the tracking threshold based on data external to the voiceprint, to yield an adjusted threshold; and

when the level of certainty meets the tracking threshold, tracking the caller.

16. The computer-readable storage device of claim 15, wherein the level of certainty is based on 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 communicating with the caller.

17. The computer-readable storage device of claim 15, having additional instructions stored which result in operations comprising fine-tuning the stored voiceprint based on the voiceprint.

18. The computer-readable storage device of claim 15, having additional instructions stored which result in operations comprising storing the voiceprint in a database.

19. The computer-readable storage device of claim 18, wherein the stored voiceprint is also stored in the database.

20. The computer-readable storage device of claim 15, having additional instructions stored which result in operations comprising storing external data associated with the voiceprint, wherein the external data comprises 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, the call recipient, and the caller.