MUMBAI, India, Feb. 6 -- Intellectual Property India has published a patent application (202521120662 A) filed by Ms. Aparna G. Korde; and Dr. Charansing N. Kayte, Pune, Maharashtra, on Dec. 2, 2025, for 'offline voice-based user authentication system and method for android mobile devices.'
Inventor(s) include Ms. Aparna G. Korde; and Dr. Charansing N. Kayte.
The application for the patent was published on Feb. 6, under issue no. 06/2026.
According to the abstract released by the Intellectual Property India: "An Intelligent, Offline Voice-Based User Authentication System and Method (AMUA) for Android mobile devices is disclosed. The invention performs combined text-dependent speaker verification and password verification entirely locally, ensuring high speed, low latency, and enhanced privacy without requiring internet connectivity. The system registers a user by extracting and securely storing a unique voiceprint template based on Mel-Frequency Cepstral Coefficients (MFCC) from a fixed spoken passphrase (supporting multilingual input like Marathi). Authentication is achieved by calculating the cosine similarity between the stored template and a feature vector derived from the test input. Access is granted if the similarity exceeds a predefined threshold, providing a secure, accessible, and resource-efficient solution for mobile device locking, e-governance, and banking applications."
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