Tag for classification and searching of documents has data base processor to correlate tags to articles

摘要

Electronic identification tags (1) are each associated with an article and includes an encoded electronic circuit having an internal code and fed from an autonomous supply source (2). The electronic circuit is connected to a receiver (3) and alarm (4) and triggers it when the receiver receives a signal containing the internal code corresponding to the circuit coding. A signal source (7) transmits the coded search signal to the electronic tags. An electronic processor (8) has a user search interface incorporates a data base management system for virtual classifying and searching operations.