Fingerprint Identification Using Trace Movement Data

The patent combines fingerprint-based identification with finger-based input method identification. The system captures both fingerprint images and finger trace movement data, then integrates these two identification methods to verify identity. This merging allows the system to maintain the convenience of fingerprint scanning while adding security through movement pattern verification, preventing unauthorized access via residual fingerprints alone.

The patent introduces dynamic finger trace data capturing that records the movement path, speed, and pressure of the finger across the input surface. This transforms the static fingerprint capture into a dynamic verification process. The system analyzes movement patterns such as swipe direction, acceleration, and contact pressure, which are difficult to replicate from residual fingerprints, thereby maintaining fast identification while enhancing security against evolving acquisition techniques.

The patent introduces finger trace movement data as an intermediary verification layer between the fingerprint capture and identity verification. Rather than relying solely on the fingerprint image that may contain residual contamination, the system uses the dynamic movement pattern data as an additional verification mechanism. This intermediary layer of verification ensures that even if residual fingerprints are present on the sensor, they cannot be used for unauthorized access without replicating the specific movement pattern.