Enhanced voiceprint authentication

• US 10,360,916 B2
• Filed: 02/22/2017
• Issued: 07/23/2019
• Est. Priority Date: 02/22/2017
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Plantronics, Inc.
• Inventors: Perotti, Erik Keil
• Primary Examiner(s): Chawan, Vijay B
• Application Number:
  US15/439,588
• Publication Number:
  US 20180240463A1
• Time in Patent Office: 881 Days
• Field of Search: 704246, 704275, 704247, 704251, 704270, 7042701, 704273, 704201, 704231, 704252, 704 9, 379 8802- 8804, 379 8819, 379 8821, 379 9303
• CPC Class Codes: G10L 15/22 Procedures used during a speech recognition process, e.g. man-machine dialogue
• 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: G10L 17/22 Interactive procedures; Man-machine interfaces
• CPC Class Codes: G10L 17/24 the user being prompted to utter a password or a predefined phrase
• CPC Class Codes: G10L 2015/223 Execution procedure of a spoken command

Abstract

The invention relates to a method for enhanced voiceprint authentication. The method includes receiving an utterance from a user, and determining that a portion of the utterance matches a pre-determined keyword. Also, the method includes authenticating the user by comparing the portion of the utterance with a voiceprint that is associated with the pre-determined keyword. Further, the method includes identifying a resource associated with the pre-determined keyword while comparing the portion of the utterance with the voiceprint. Still yet, the method includes accessing the resource in response to authenticating the user based on the comparison.

Claims

1. A method, comprising:

receiving a first utterance from a user;

determining that at least a portion of the first utterance matches a first pre-determined keyword;

authenticating the user by comparing the at least a portion of the first utterance with a first voiceprint that is associated with the first pre-determined keyword;

calculating a first score based on the comparison of the at least a portion of the first utterance and the first voiceprint;

identifying a first resource associated with the first pre-determined keyword;

in response to authenticating the user based on the comparison of the at least a portion of the first utterance and the first voiceprint, accessing the first resource;

receiving a second utterance from the user;

determining that at least a portion of the second utterance matches a second pre-determined keyword;

authenticating the user by comparing the at least a portion of the second utterance with a second voiceprint that is associated with the second pre-determined keyword;

calculating a second score based on the comparison of the at least a portion of the second utterance and the second voiceprint;

identifying a second resource associated with the second pre-determined keyword;

in response to authenticating the user based on the comparison of the at least a portion of the second utterance and the second voiceprint, accessing the second resource, wherein accessing the second resource includes sending an authentication success event to a host device;

calculating a third score based on the first score and the second score; and

sending the third score to the host device with the authentication success event.

2. The method of claim 1, wherein the third score includes an accumulated score.

3. The method of claim 2, comprising reorganizing a structure of a command library based on the accumulated score.

4. The method of claim 3, wherein the first pre-determined keyword and the second pre-determined keyword are included in the command library.

5. A headset, comprising:

a microphone;

a speaker;

at least one processor; and

memory coupled to the at least one processor, the memory having stored therein a first voiceprint, a second voiceprint, a first pre-determined keyword in association with the first voiceprint, a second pre-determined keyword in association with the second voiceprint, and instructions which when executed by the at least one processor, cause the at least one processor to perform a process including;

receiving a first utterance from a user;

determining that at least a portion of the first utterance matches the first pre-determined keyword;

authenticating the user by comparing the at least a portion of the first utterance with the first voiceprint that is associated with the first pre-determined keyword;

calculating a first score based on the comparison of the at least a portion of the first utterance and the first voiceprint;

identifying a first resource associated with the first pre-determined keyword;

in response to authenticating the user based on the comparison of the at least a portion of the first utterance and the first voiceprint, accessing the first resource;

receiving a second utterance from the user;

determining that at least a portion of the second utterance matches the second pre-determined keyword;

authenticating the user by comparing the at least a portion of the second utterance with the second voiceprint that is associated with the second pre-determined keyword;

calculating a second score based on the comparison of the at least a portion of the second utterance and the second voiceprint;

identifying a second resource associated with the second pre-determined keyword;

in response to authenticating the user based on the comparison of the at least a portion of the second utterance and the second voiceprint, accessing the second resource, wherein accessing the second resource includes sending an authentication success event to a host device;

calculating a third score based on the first score and the second score; and

sending the third score to the host device with the authentication success event.

6. The headset of claim 5, wherein the third score includes an accumulated score.

7. The headset of claim 6, the process performed by the at least one processor including reorganizing a structure of a command library based on the accumulated score.

8. The headset of claim 7, wherein the first pre-determined keyword and the second pre-determined keyword are included in the command library.

9. A non-transitory computer program product including machine readable instructions for implementing a process for voiceprint authentication, the process for voiceprint authentication comprising:

receiving a first utterance from a user;

determining that at least a portion of the first utterance matches a first pre-determined keyword;

authenticating the user by comparing the at least a portion of the first utterance with a first voiceprint that is associated with the first pre-determined keyword;

calculating a first score based on the comparison of the at least a portion of the first utterance and the first voiceprint;

identifying a first resource associated with the first pre-determined keyword;

in response to authenticating the user based on the comparison of the at least a portion of the first utterance and the first voiceprint, accessing the first resource;

receiving a second utterance from the user;

determining that at least a portion of the second utterance matches a second pre-determined keyword;

authenticating the user by comparing the at least a portion of the second utterance with a second voiceprint that is associated with the second pre-determined keyword;

calculating a second score based on the comparison of the at least a portion of the second utterance and the second voiceprint;

identifying a second resource associated with the second pre-determined keyword;

in response to authenticating the user based on the comparison of the at least a portion of the second utterance and the second voiceprint, accessing the second resource, wherein accessing the second resource includes sending an authentication success event to a host device;

calculating a third score based on the first score and the second score; and

sending the third score to the host device with the authentication success event.

10. The computer program product of claim 9, wherein the third score includes an accumulated score.

11. The computer program product of claim 10, the process for voiceprint authentication comprising reorganizing a structure of a command library based on the accumulated score.

12. The computer program product of claim 11, wherein the computer program product is operable such that the first pre-determined keyword and the second pre-determined keyword are included in the command library.