G10L 17/00 - Definition

Definition statement

This subclass covers:

Recognition, identification of a speaker

Verification, authentication of a speaker

Preprocessing operations, e.g. segment selection; Pattern representation or modeling, e.g. based on linear discriminant analysis (LDC), principal components; Feature selection or extraction

Dialog, prompts, passwords for identification

Training, model building, enrollment

Decision making techniques, pattern matching strategies

Multimodal identification including voice

Hidden Markov Models

Artificial neural networks, connectionist approaches

Pattern transformations and operations aimed at increasing system robustness, e.g. against channel noise, different working conditions

Identification in noisy condition

Interactive procedures, man-machine interface, e.g. user prompted to utter a password or predefined text

Recognition of special voice characteristics, e.g. for use in a lie detector; recognition of animal voices

Imposter detection

Informative references

Attention is drawn to the following places, which may be of interest for search:

User authentication in security arrangements for restricting access by using biometric data, e.g. voice prints	G06F 21/32
Machine learning	G06N 20/00
Secret secure communication including means for verifying the identity or authority of a user	H04L 9/32
Centralized arrangements for answering calls; Centralized arrangements for recording messages for absent or busy subscribers	H04M 3/50

Glossary of terms

In this subclass, the following terms or expressions are used with the meaning indicated:

Speaker verification	Refers to verifying that the user claimed identity is real, otherwise he is an imposter. Speaker recognition, or identification, aims at determining who the user is among a closed (finite number) set of users. He is otherwise unknown.
An imposter	Someone actively trying to counterfeit someone else’s identity.

Synonyms and Keywords

In patent documents the following terms "sheep" and "goat" are often used as synonyms. Also, these terms can be used as keywords.

In patent documents the following terms "predator" and "wolf" are often used as synonyms. Also, these terms can be used as keywords.

In patent documents the expression "predator, wolf" is often used with the meaning of "a person who can easily counterfeit someone else’s voice or is often identified as someone else".