System and method for establishing identity of a speaker

• US 5,913,196 A
• Filed: 11/17/1997
• Issued: 06/15/1999
• Est. Priority Date: 11/17/1997
• Status: Expired due to Term

• Current Assignee: Sentrycom Limited
• Original Assignee: Sentrycom Limited
• Inventors: Talmor, Rita, Talmor, Eli
• Primary Examiner(s): Hudspeth, David R.
• Assistant Examiner(s): Lerner, Martin
• Application Number:
  US08/971,552
• Time in Patent Office: 575 Days
• Field of Search: 704/231, 704/237, 704/243, 704/246, 704/270, 704/273, 704/274
• US Class Current: 704/270
• CPC Class Codes: G10L 17/00 Speaker identification or verification techniques
• CPC Class Codes: H04L 2463/102 applying security measure for e-commerce data processing systems or methods, specially adapted for e-commerce G06Q30/00
• CPC Class Codes: H04L 63/0861 using biometrical features, e.g. fingerprint, retina-scan cryptographic mechanisms or cryptographic arrangements for entity authentication using biological data H04L9/3231

Abstract

A system for establishing an identity of a speaker including a computerized system which includes at least two voice authentication algorithms. Each of the at least two voice authentication algorithms is different from one another and serves for independently analyzing a voice of the speaker for obtaining an independent positive or negative authentication of the voice by each of the algorithms. If every one of the algorithms provide positive authentication, the speaker is positively identified, whereas, if at least one of the algorithms provides negative authentication, the speaker is negatively identified.

Claims

1. A method for establishing an identity of a speaker comprising the steps of:

(a) providing a computerized system including at least two hardware installations employing at least two voice authentication algorithms, each of said at least two voice authentication algorithms being different from one another, each of said at least two hardware installations being for actuating one of said at least two voice authentication algorithms; and

(b) independently analyzing a voice of the speaker by each of said at least two voice authentication algorithms for obtaining an independent positive or negative authentication of the voice by each of said at least two algorithms;

wherein if every one of said at least two voice authentication algorithms provide a positive authentication, the speaker is positively identified, whereas, if at least one of said at least two voice authentication algorithms provides negative authentication, the speaker is negatively identified, whereas at least one of said at least two hardware installations is implemented in a secured-system, and at least another one of said at least two hardware installations is implemented in a securing-center, said at least one hardware installation implemented in said securing-center communicates with said at least one hardware installation implemented in said secured-system, such that all positive or negative identification data is established in said secured-system.

2. The method of claim 1, wherein each of said voice authentication algorithms is independently selected from the group consisting of text-dependent algorithms and text-independent algorithms.

3. The method of claim 2, wherein each of said voice authentication algorithms is independently selected from the group consisting of feature extraction followed by pattern matching algorithms, neural network voice authentication algorithms, Dynamic Time Warping algorithm, Hidden Markov Model algorithm and vector quantization algorithm.

4. The method of claim 1, wherein a false rejection threshold of each of said at least two algorithms is set to a level below 0.5%.

5. The method of claim 4, wherein said false rejection threshold of each of said at least two algorithms is set to about 0.3%.

6. The method of claim 1, wherein the voice of the speaker is accepted for analysis by said computerized system via a remote communication mode.

7. The method of claim 6, wherein said remote communication mode is selected from the group consisting of wire telephone communication, cellular telephone communication, computer phone communication and radio communication.

8. The method of claim 1, wherein said at least two hardware installations are remote from one another.

9. The method of claim 1, wherein said computerized system further includes a voice recognition algorithm for recognizing verbal data spoken by said speaker.

10. The method of claim 9, wherein said verbal data includes a spoken phrase selected from the group consisting of a name, an identification number, and a request.

11. The method of claim 1, wherein said computerized system further includes a voice recognition algorithm for recognizing verbal data spoken by said speaker, the method further comprising the steps of positively or negatively recognizing said verbal data, and if said positive identity has been established, positively or negatively correlating between at least some of said verbal data and said speaker.

12. A method for establishing an identity of a speaker comprising the steps of:

(a) providing a computerized system employing at least two voice authentication algorithms, each of said at least two voice authentication algorithms being different from one another; and

(b) independently analyzing a voice of the speaker by each of said at least two voice authentication algorithms for obtaining an independent positive or negative authentication of the voice by each of said at least two algorithms;

wherein if every one of said at least two voice authentication algorithms provide a positive authentication, the speaker is positively identified, whereas, if at least one of said at least two voice authentication algorithms provides negative authentication, the speaker is negatively identified, whereas said at least two voice authentication algorithms include a first voice authentication algorithm and a plurality of identical second voice authentication algorithms, said first voice authentication algorithm is implemented in a security-center, whereas said plurality of second voice authentication algorithms are implemented in a plurality of secured-systems, said security-center communicates with each of said plurality of secured-systems.

13. A system for establishing an identity of a speaker comprising a computerized system including at least two hardware installations for actuating at least two voice authentication algorithms, each of said at least two hardware installations serves for actuating one of said at least two voice authentication algorithms, each of said at least two voice authentication algorithms being different from one another and serving for independently analyzing a voice of the speaker for obtaining an independent positive or negative authentication of the voice by each of said at least two algorithms, wherein if every one of said at least two voice authentication algorithms provide a positive authentication, the speaker is positively identified, whereas, if at least one of said at least two voice authentication algorithms provides negative authentication, the speaker is negatively identified, at least one of said at least two hardware installations is implemented in a secured-system, and at least another one of said at least two hardware installations is implemented in a securing-center, said at least one hardware installation implemented in said securing-center communicates with said at least one hardware installation implemented in said secured-system, such that all positive or negative identification data is established in said secured-system.

14. The method of claim 13, wherein each of said voice authentication algorithms is independently selected from the group consisting of text-dependent algorithms and text-independent algorithms.

15. The method of claim 14, wherein each of said voice authentication algorithms is independently selected from the group consisting of feature extraction followed by pattern matching algorithms, neural network voice authentication algorithms, Dynamic Time Warping algorithm, Hidden Markov Model algorithm and vector quantization algorithm.

16. The system of claim 13, wherein a false rejection threshold of each of said at least two algorithms is set to a level below 0.5%.

17. The system of claim 16, wherein said false rejection threshold of each of said at least two algorithms is set to about 0.3%.

18. The system of claim 13, wherein the voice of the speaker is accepted for analysis by said computerized system via a remote communication mode.

19. The system of claim 18, wherein said remote communication mode is selected from the group consisting of wire telephone communication, cellular telephone communication, computer phone communication and radio communication.

20. The system of claim 13, wherein said at least two hardware installations are remote from one another.

21. The system of claim 13, wherein said computerized system further includes a voice recognition algorithm for recognizing verbal data spoken by said speaker.

22. The system of claim 13, wherein said computerized system further includes a voice recognition algorithm for recognizing verbal data spoken by said speaker for positively or negatively recognizing said verbal data, and if said positive identity has been established, positively or negatively correlating between at least some of said verbal data and said speaker.

23. The system of claim 22, wherein said verbal data includes a spoken phrase selected from the group consisting of a name, an identification number, and a request.

24. A system for establishing an identity of a speaker comprising a computerized system including at least two voice authentication algorithms, each of said at least two voice authentication algorithms being different from one another and serving for independently analyzing a voice of the speaker for obtaining an independent positive or negative authentication of the voice by each of said at least two algorithms, wherein if every one of said at least two voice authentication algorithms provide a positive authentication, the speaker is positively identified, whereas, if at least one of said at least two voice authentication algorithms provides negative authentication, the speaker is negatively identified, said at least two voice authentication algorithms include a first voice authentication algorithm and a plurality of identical second voice authentication algorithms, said first voice authentication algorithm is implemented in a security-center, whereas said plurality of second voice authentication algorithms are implemented in a plurality of secured-systems, said security-center communicates with each of said plurality of secured-systems.