Antidiebstahlverfahren, und korrespondierende Schaltkreise und elektrische Systeme

摘要

In an electrical system comprising a plurality of electrical devices D1-D5 identified by identification codes ID in respective control sections and interconnected by means of at least one transmission means, if by means of sending and/or reception of said identification codes at least one of the devices is capable of checking whether the system has been tampered with and at least said device (and preferably all) disables its own operation, the user of the system will be alerted immediately. By memorising said identification codes in non-volatile memories programmable only once, customisation of the control sections is extremely simple after production of the circuit and performable by means of simple electrical circuits. Even if the identification code is not camouflaged the need for replacing all the control sections for full operation of the electrical system is in itself a sufficient tampering deterrent.