APPARATUS FOR VALIDATING SECURITY DOCUMENTS

摘要

The invention relates to an apparatus for validating all types of security documents such as bank notes, checks or other types of securities. To this end, the apparatus simultaneously uses an infrared ray-sensitive optical sensor, a visible light-sensitive sensor and a magnetic sensor detecting the presence of a magnetic thread and reading the code thereof. The information provided by each sensor is compared with the information supplied by the other sensors in such a way that when the optical sensor detects by opacity the presence of the security thread, the magnetic sensor recognizes the beginning of the code to read said code.