Patent ID: 7178727

Claim:
A separable electronic price tag system adjustable by one or more signals from a remote location, comprising (A) an ID module comprising (a) an attachment to mount the ID module to a product; (b) an adjustment assembly comprising (1) a receiver for the signals from a remote location; (2) a filter to identify signals from the receiver to which the electronic price tag will respond; (3) a decoder having encoded data and connected to the filter to identify a product code in a signal from the filter corresponding to the encoded data and to send decoder signals; (4) a signal processor that receives one or more decoder signals and converts data in the decoder signals to digital data and sends processor signals; (5) a processing unit that receives processor signals; (B) a separable display module comprising (a) a transponder assembly comprising (1) an antenna for receiving a wireless signal; (2) a filter connected to the antenna to filter out wireless signals to which the electronic price tag is non-responsive; (3) a decoder connected to the filter to identify a product code in the signal corresponding to encoded data in the decoder; (4) a standby element interconnecting the filter and the decoder for determining whether to provide an actuating signal to the price tag sufficient-to adjust the price of the product; (5) a signal processor connected to the decoder for converting data in the wireless signal to digital data; (6) a central processing unit (CPU) connected to the signal processor; (7) a support platform having (i) a tag display comprising display elements; (8) one or more driver elements for activating corresponding display elements in the separable display module; (C) said ID module and separable display module capable of being temporarily connected by a latch system, said latch system comprising (a) a receiver in said ID module for a connector in said separable display module (b) securing means in said ID module biased to secure said connector to said receiver; (D) a power source mounted to one of the modules for powering the electronic price tag to display price information and to energize the latch in at least one module and, when said ID module is connected to said separable display module by said latch, to power the CPU and other electronic components of at least one of the modules.