BBVA has been granted a patent for methods of authenticating users or speakers using speech signals and credentials. The process involves determining the validity of the input signal, extracting a voiceprint, comparing it to a reference voiceprint, and updating the reference voiceprint upon successful authentication. The method includes detecting spoofing-related features to enhance security. GlobalData’s report on BBVA gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on BBVA, Blockchain-based network authentication was a key innovation area identified from patents. BBVA's grant share as of February 2024 was 60%. Grant share is based on the ratio of number of grants to total number of patents.

Voice authentication method with spoofing detection

Source: United States Patent and Trademark Office (USPTO). Credit: BBVA

A recently granted patent (Publication Number: US11869513B2) discloses a method for authenticating users or speakers based on input speech signals and user credentials. The method involves determining the validity of the input speech signal by analyzing spoofing-related features, such as multi-channel replay attack indicia and ultrasonic pseudorandom codes. By comparing the speech voiceprint extracted from the input signal with a reference voiceprint associated with the user credentials, the system can authenticate or reject the user. Additionally, the method includes updating the reference voiceprint with the speech voiceprint used in the authentication process, ensuring continuous improvement in user authentication accuracy.

Furthermore, the patent describes a computing system that embodies the instructions for executing the authentication method, emphasizing the importance of detecting spoofing attempts through various features like magnetic field measurements and predefined codes of reference. By prompting users to utter predefined utterances and capturing them for comparison, the system can determine the validity of the input speech signal. The method also includes score calibration techniques to enhance the authentication process, ensuring a robust and reliable user authentication system. Overall, the patent highlights a comprehensive approach to user authentication using speech signals and user credentials, incorporating advanced techniques to combat spoofing attempts and improve the accuracy of the authentication process.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.