Method of identifying a person based upon voice analysis

• US 20070033041A1
• Filed: 07/12/2005
• Published: 02/08/2007
• Est. Priority Date: 07/12/2004
• Status: Abandoned Application

• Current Assignee: Jeffrey Norton
• Original Assignee: Jeffrey Norton
• Inventors: Norton, Jeffrey
• Application Number:
  US11/179,896
• Publication Number:
  US 20070033041A1
• Time in Patent Office: Days
• US Class Current: 704/254
• 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 17/20 Pattern transformations or operations aimed at increasing system robustness, e.g. against channel noise or different working conditions
• CPC Class Codes: G10L 2015/025 Phonemes, fenemes or fenones being the recognition units

Abstract

A method and apparatus are provided for identifying a person based upon a verbal statement of the person. The method includes the steps of sampling the verbal statement of the person and identifying a sequence of phonemes within the sampled statement. The method further includes the steps of measuring a time between each phoneme of the identified sequence of phonemes, comparing the identified sequence of phonemes with a corresponding reference sequence of phonemes of the person and confirming the identity of the person when the identified sequence of phonemes and reference sequence of phonemes match and the measured time among the identified sequence of phonemes substantially matches a corresponding time among the reference sequence of phonemes.

Claims

1. A method of identifying a person based upon a verbal statement of the person, such method comprising the steps of:

sampling the verbal statement of the person;

identifying a sequence of phonemes within the sampled statement;

measuring a time between successive phonemes of the identified sequence of phonemes;

comparing the identified sequence of phonemes with a corresponding reference sequence of phonemes previously provided by the person; and

confirming the identity of the person when the identified sequence of phonemes and reference sequence of phonemes match and the measured time among the identified sequence of phonemes substantially matches a corresponding time among the reference sequence of phonemes.

2. The method of identifying the person as in claim 1 wherein the sequence of phonemes further comprises a name of the person.

3. The method of identifying the person as in claim 1 wherein the sequence of phonemes further comprises a nickname of the person.

4. The method of identifying the person as in claim 1 wherein the substantial match further comprises a proportional equality between corresponding sequential phonemes of the identified sequence and the reference sequence.

5. The method of identifying the person as in claim 4 wherein the proportional equality further comprises an asymmetric equality among corresponding portions of the identified sequence and the reference sequence.

6. The method of identifying the person as in claim 1 wherein the substantial match further comprises a temporal equality between corresponding sequential phonemes of the identified sequence and the reference sequence.

7. The method of identifying the person as in claim 1 further comprising retrieving the reference sequence from a credit card.

8. The method of identifying the person as in claim 1 further comprising retrieving the reference sequence from a radio frequency chip.

9. The method of identifying the person as in claim 1 further comprising receiving the sampled voice through a call connection established between a telephone and a call destination, retrieving the reference sequence from a memory of a call destination security system and granting telephone access privileges through the call destination based upon the substantial match.

10. An apparatus for identifying a person based upon a verbal statement of the person, such method comprising the steps of:

means for sampling the verbal statement of the person;

means for identifying a sequence of phonemes within the sampled statement;

means for measuring a time between successive phonemes of the identified sequence of phonemes;

means for comparing the identified sequence of phonemes with a corresponding reference sequence of phonemes from the person; and

means for confirming the identity of the person when the identified sequence of phonemes and reference sequence of phonemes match and the measured time among the identified sequence of phonemes substantially matches a corresponding time among the reference sequence of phonemes.

11. The apparatus for identifying the person as in claim 10 wherein the sequence of phonemes further comprises a name of the person.

12. The apparatus for identifying the person as in claim 10 wherein the sequence of phonemes further comprises a nickname of the person.

13. The apparatus for identifying the person as in claim 10 wherein the substantial match further comprises a proportional equality between corresponding sequential phonemes of the identified sequence and the reference sequence.

14. The apparatus for identifying the person as in claim 13 wherein the proportional equality further comprises an asymmetric equality among corresponding portions of the identified sequence and the reference sequence.

15. The apparatus for identifying the person as in claim 10 wherein the substantial match further comprises a temporal equality between corresponding sequential phonemes of the identified sequence and the reference sequence.

16. The apparatus for identifying the person as in claim 10 further comprising means for retrieving the reference sequence from a credit card.

17. The apparatus for identifying the person as in claim 10 further comprising means for retrieving the reference sequence from a radio frequency identification chip.

18. The apparatus for identifying the person as in claim 10 further comprising means for receiving the sampled voice through a call connection established between a telephone and a call destination, retrieving the reference sequence from a memory of a call destination security system and granting telephone access privileges through the call destination based upon the substantial match.

19. An apparatus for identifying a person based upon a verbal statement of the person, such method comprising the steps of:

an analog to digital converter that samples the verbal statement of the person;

a phoneme processor that identifies a sequence of phonemes within the sampled statement;

a time processor that determines a time between successive phonemes of the identified sequence of phonemes;

a comparator that compares the identified sequence of phonemes with a corresponding reference sequence of phonemes from the person; and

a reference phoneme sequence that confirms the identity of the person when the identified sequence of phonemes and reference sequence of phonemes match and the measured time among the identified sequence of phonemes substantially matches a corresponding time among the reference sequence of phonemes.

20. The apparatus for identifying the person as in claim 19 wherein the sequence of phonemes further comprises a name of the person.

21. The apparatus for identifying the person as in claim 19 wherein the sequence of phonemes further comprises a nickname of the person.

22. The apparatus for identifying the person as in claim 19 wherein the substantial match further comprises a proportional equality between corresponding sequential phonemes of the identified sequence and the reference sequence.

23. The apparatus for identifying the person as in claim 22 wherein the proportional equality further comprises an asymmetric equality among corresponding portions of the identified sequence and the reference sequence.

24. The apparatus for identifying the person as in claim 19 wherein the substantial match further comprises a temporal equality between corresponding sequential phonemes of the identified sequence and the reference sequence.

25. The apparatus for identifying the person as in claim 19 further comprising a credit card that provides the reference phoneme sequence.

26. The apparatus for identifying the person as in claim 19 further comprising a radio frequency identification chip that provides the reference phoneme chip.