Abstract: The invention relates to a system for authenticating a printed document, said document being printed on a substrate which includes plurality of electromagnetic responsive targets that are introduced to the substrate during its manufacturing process and randomly distributed therein, and wherein each target having a fiber form, said system comprises an authentication apparatus which comprises: (a) one transmitting antenna and one receiving antenna that are positioned above a moving conveyor, for radiating an original document during a scanning period in which the conveyor moves the document below said transmitting and receiving antennas; (b) a transmitter for providing electromagnetic signal to said transmitting antenna, and a receiver for receiving from said receiving antenna a responsive electromagnetic signal, said responsive signal being an accumulative response from plurality of said targets as obtained during said scanning period; (c) a sampling unit for sampling said accumulated responsive signal, thereb

Abstract: A minibar system for supplying a plurality of inventory items, including a plurality of minibars. Each of the minibars having a control system and a minibar power modem. The control system being configured to monitor a removal of one of the inventory items and prepare a data package about the removal. The system also includes a processor and a central power modem. The processor is operationally connected to the central power modem. The central power modem and the minibar power modem of each of the minibars are electrically connected to a wiring system so that the minibars and the processor can communicate over the wiring system. The processor is configured to process data packages received from the minibars.

Abstract: A minibar system for supplying a plurality of inventory items, including a plurality of minibars. Each of the minibars having a control system and a minibar power modem. The control system being configured to monitor a removal of one of the inventory items and prepare a data package about the removal. The minibars are powered by an electrical wiring system configured for carrying alternating current. The system also includes a processor and a central power modem. The processor is operationally connected to the central power modem. The central power modem and the minibar power modem of each of the minibars are electrically connected to the electrical wiring system so that the minibars and the processor can communicate over the electrical wiring system. The processor is configured to process data packages received from the minibars.