ASSOCIATING AND LOCATING MOBILE STATIONS BASED ON SPEECH SIGNATURES

• US 20140088965A1
• Filed: 09/27/2012
• Published: 03/27/2014
• Est. Priority Date: 09/27/2012
• Status: Abandoned Application

• Current Assignee: Polaris Wireless Incorporated
• Original Assignee: Polaris Wireless Incorporated
• Inventors: Goel, Narender
• Application Number:
  US13/628,486
• Publication Number:
  US 20140088965A1
• Time in Patent Office: Days
• US Class Current: 704/246
• CPC Class Codes: G10L 17/00 Speaker identification or verification techniques
• CPC Class Codes: G10L 17/08 Use of distortion metrics or a particular distance between probe pattern and reference templates
• CPC Class Codes: H04M 2201/41 using speaker recognition speaker recognition per se G10L17/00
• CPC Class Codes: H04M 2203/6045 Identity confirmation
• CPC Class Codes: H04M 2203/6054 Biometric subscriber identification
• CPC Class Codes: H04M 2207/18 wireless networks
• 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 3/42348 Location-based services which utilize the location information of a target

Abstract

Methods and systems populate a speech signature database with unique speech signatures that are associated with one or more speaker identities and are further associated with one or more mobile stations and/or telephone numbers. Real-time voice signals are compared to the speech signatures in the speech signature database. When a match is found, the mobile station from which the voice signal originated is located in real-time. Further, the associations in the speech signature database are leveraged to find other relevant mobile stations or users and to generate additional associations and to also locate associated users and mobile stations.

Claims

1. A method comprising:

when a first measure of correlation as between (i) a first speech signature of a first voice signal from a first mobile station and (ii) a second speech signature of a second voice signal exceeds a first threshold, generating, by a speaker-recognition system, an association between the first mobile station and a second mobile station that is associated with the second speech signature, wherein the first mobile station is different from the second mobile station.

2. The method of claim 1 further comprising:

based on the measure of correlation exceeding the first threshold, generating, by the speaker-recognition system, an association between the first mobile station and a speaker having the second speech signature.

3. The method of claim 1 further comprising:

based on the measure of correlation exceeding the first threshold, generating, by the speaker-recognition system, an association between a first user of the first mobile station and at least one of;

(A) a speaker having the second speech signature, and

(B) the second mobile station.

4. The method of claim 1 further comprising:

based on the measure of correlation exceeding the first threshold, generating, by the speaker-recognition system, an association between a telephone number associated with the first mobile station and the second speech signature.

5. The method of claim 1 wherein a speech signature database comprises the second speech signature, and further comprising:

receiving, by the speaker-recognition system, the first voice signal;

computing, by the speaker-recognition system, the first speech signature based on the first voice signal; and

transmitting, by the speaker-recognition system, an update to the speech signature database, the update comprising the association between the first mobile station and the second mobile station.

6. The method of claim 1 wherein the first mobile station is identified by an International Mobile Subscriber Identifier that is associated with a subscriber identity module in the first mobile station.

7. A system comprising:

a receiver for receiving a first voice signal from a first mobile station; and

a processor configured to;

determine whether a first speech signature of the first voice signal matches a second speech signature of a second voice signal,

when the first speech signature matches the second speech signature, generate at least one of;

(I) an association between the first mobile station and a second mobile station that is associated with the second speech signature, wherein the first mobile station is different from the second mobile station,

(ii) an association between the first mobile station and a speaker having the second speech signature,

(iii) an association between a first user of the first mobile station and the speaker having the second speech signature,

(iv) an association between the first user of the first mobile station and the second mobile station, and

(v) an association between a telephone number associated with the first mobile station and the second speech signature.

8. The system of claim 7 further comprising:

a transmitter configured to transmit an update to a speech signature database, the update comprising at least one association generated by the processor.

9. The system of claim 7 wherein the processor is further configured to:

compute the first speech signature based on the first voice signal.

10. A method comprising:

computing, by a speaker-recognition system, a first speech signature of a first voice signal from a first mobile station; and

when the first speech signature matches a second speech signature of a second voice signal, transmitting, by the speaker-recognition system, a request for a location of the first mobile station.

11. The method of claim 10 further comprising:

receiving, by the speaker-recognition system, the first voice signal from the first mobile station, wherein the first voice signal represents an utterance by a first user of the first mobile station;

comparing, by the speaker-recognition system, the first speech signature to the second speech signature to determine whether a measure of correlation therebetween exceeds a first threshold; and

when the threshold is exceeded, determining by the speaker-recognition system that the first speech signature matches the second speech signature.

12. The method of claim 10 further comprising:

receiving by the speaker-recognition system an estimate of the location of the first mobile station in response to the request for the location.

13. The method of claim 10 further comprising:

based on the match, identifying, by the speaker-recognition system, whether a second mobile station that is different from the first mobile station is associated with the second speech signature; and

when the second mobile station is associated with the second speech signature, transmitting, by the speaker-recognition system, a request for a location of the second mobile station.

14. The method of claim 13 wherein a speech signature database comprises:

(A) the second speech signature, and

(B) the association between the second mobile station and the second speech signature.

15. The method of claim 10 further comprising:

based on the match, identifying, by the speaker-recognition system, a second speaker who is associated with the first mobile station;

identifying, by the speaker-recognition system, a second mobile station that is associated with the second speaker; and

transmitting, by the speaker-recognition system, a request for a location of the second mobile station.

16. The method of claim 10 wherein the transmitting of the request for the location of the first mobile station is also based on whether a first user of the first mobile station is of interest.

17. The method of claim 10 wherein the transmitting of the request for the location of the first mobile station is also based on whether the first mobile station is of interest.

18. The method of claim 10 wherein the transmitting of the request for the location of the first mobile station is also based on whether a telephone number that is associated with the second speech signature is of interest.

19. The method of claim 10 wherein the transmitting of the request for the location of the first mobile station is also based on whether a telephone number that is associated with the first mobile station is of interest.

20. A system comprising:

a processor configured to;

compute a first speech signature of a first voice signal from a first mobile station, and

when the first speech signature matches a second speech signature of a second voice signal, generate a request for a location of the first mobile; and

a transmitter configured to transmit the request for a location of the first mobile station.

21. The system of claim 20 further comprising:

a receiver configured to receive the first voice signal from the first mobile station, wherein the first voice signal represents an utterance by a first user of the first mobile station; and

wherein the processor is further configured to;

compare the first speech signature to the second speech signature to determine whether a measure of correlation therebetween exceeds a first threshold, and

when the threshold is exceeded, determine that the first speech signature matches the second speech signature.

22. The system of claim 20 further comprising:

a receiver configured to receive an estimate of the location of the first mobile station in response to the request for the location.

23. The system of claim 20 wherein the processor is further configured to:

based on the match, identify a second speaker who is associated with the first mobile station, and

identify a second mobile station that is associated with the second speaker; and

wherein the transmitter is further configured to transmit a request for a location of the second mobile station.

24. The system of claim 20 wherein the processor is further configured to generate the request for the location of the first mobile station based on at least one of:

(A) whether a first user of the first mobile station is of interest,

(B) whether the first mobile station is of interest,

(C) whether a telephone number that is associated with the second speech signature is of interest, and

(D) whether a telephone number that is associated with the first mobile station is of interest.

25. A method comprising:

receiving, by a speaker-recognition system, a first voice signal from a first mobile station, wherein the first voice signal represents an utterance by a first user of the first mobile station;

computing, by the speaker-recognition system, a first speech signature of the first user based on the first voice signal;

when a first measure of correlation as between (i) the first speech signature and (ii) a second speech signature of a second voice signal exceeds a first threshold, generating, by the speaker-recognition system, an indication that the first user is the same as a speaker having the second speech signature; and

based on the indication, transmitting, by the speaker-recognition system, a request for a location of the first mobile station.

26. The method of claim 25 further comprising:

receiving by the speaker-recognition system an estimate of the location of the first mobile station in response to the request for the location.

27. The method of claim 25 further comprising:

based on the indication, identifying, by the speaker-recognition system, whether a second mobile station that is different from the first mobile station is associated with the second speech signature; and

when a second mobile station is associated with the second speech signature, transmitting, by the speaker-recognition system, a request for a location of the second mobile station.