Patent ID: 11869513
Assignee: VERIDAS DIGITAL AUTHENTICATION SOLUTIONS, S.L.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 15:
16. The method according to claim 14, comprising performing a score calibration σ(χ) of the user or speaker authentication; wherein χ represents a score of the user or speaker authentication; and wherein the closer to 1 is σ(χ), the more successful the user or speaker authentication is determined, and the closer to 0 is σ(χ), the less successful the user or speaker authentication is determined; and wherein
when the score calibration σ(χ) is not less than the predefined heuristic factor γ, the remembering factor λ(σ(χ),ψ, γ) is equal to γ and, therefore, maximum importance is attributed to the speech voiceprint vt(s′) representing the input speech signal in the updating:

et(s)=λ(σ(x),Ψ,γ)et−1(s)+(1−λ(σ(x),Ψ,γ))vt(s′).