Compact optical fingerprint module with integrated processing This fingerprint processing module combines optical sensing and onboard fingerprint processing into a compact, low power unit for reliable biometric identification. It supports the full fingerprint workflow and is designed for straightforward integration into access control, attendance, and embedded authentication systems. Key benefits Complete fingerprint workflow: supports fingerprint registration and fingerprint matching, with matching divided into onetoone comparison and onetomany search. reliability and fast recognition: optimized processing delivers rapid identification for both comparison and largescale searches. Robust to finger conditions: good adaptability to both wet and dry fingers for consistent capture and recognition. Efficient search and storage: fingerprint features are extracted, stored, compared, and searched using the algorithm, minimizing data size and improving match rates. Compact and low power: integrated optical path and processing reduce module volume and power consumption, simplifying hardware design and deployment. Simple integration: the combined sensing and processing design reduces external components and integration complexity. Function and performance Featurebased operation: the module extracts fingerprint features from captured images and performs all storage, comparison, and search operations on these features to improve matching accuracy and conversion rates. Two matching modes: supports precise onetoone fingerprint comparison for verification and fast onetomany fingerprint search for identification in larger databases. Fast fingerprint search: optimized algorithms enable quick identification even when searching across many enrolled templates. Compatibility and form factor Integrated optical sensor and processing unit suitable for embedding in access control panels, time and attendance terminals, smart locks, kiosks, and other devices that require compact biometric modules. Small volume and low power consumption make the module suitable for space and powerconstrained applications, including batterypowered devices. Designed for straightforward interfacing with host systems that accept fingerprint modules and featurebased biometric data. Practical use scenarios Office time and attendance: enroll employees once and verify attendance quickly with onetoone comparison, or identify users in a crowd using onetomany search. Secure door and equipment access: integrate into access control panels or smart locks to provide reliable entry control that tolerates wet and dry finger conditions. Embedded devices and kiosks: add compact biometric authentication to handheld devices, kiosks, or vending machines where low power and small footprint are required. Technical notes The module integrates optical path and fingerprint processing components; fingerprint data handling is featurebased to reduce storage requirements and improve matching efficiency. Matching is carried out as either fingerprint comparison or fingerprint search, depending on application needs. This module provides a practical, compact biometric solution for applications that require reliable, fast fingerprint recognition with minimal integration effort.