Releasing system as means of releasing functions

摘要

The system comprises a generator for gradually changing code outgoing from an internal condition. Comparison devices compare the code generated by the arrangement and a code received from the remote control. The internal conditions of the code generators are synchronized via a synchronization signal transmitted by the arrangement to the remote control. The release system examines whether a request for the release of functions of an arrangement is authorized. The remote control includes devices for transmitting the generated code over radio to the arrangement, as well as to a transponder which is suitable to authenticate the remote control to the arrangement.