Abstract: A system for electronically displaying item data information such as item prices and item descriptions that is available in updateable form from a central buffer, processing, multiplexing and serving unit. The system provides a multi-frequency tone signal containing item data applicable to items on a shelf associated with an electronic display strip and containing the address code of that particular strip. The electronic display strip responds to its particular address code and receives, decodes, displays the data relating to the items on the shelf, and ensures that the displayed data is in the proper order on the strip. The strip includes an electronic display for displaying the data, a non-volatile memory for retaining the data in the absence of applied power, and a multi-frequency tone signaling system to retransmit the received data to the server unit as a means of confirming that the proper information had been received and displayed, and a sensor element that receives display command signals.

Abstract: A system for electronically displaying item data information such as item prices and item descriptions that is available in updateable form from a central buffer, processing, multiplexing and serving unit. The system provides a multi-frequency tone signal containing item data applicable to items on a shelf associated with an electronic display strip and containing the address code of that particular strip. The electronic display strip responds to its particular address code and receives, decodes, displays the data relating to the items on the shelf, and ensures that the displayed data is in the proper order on the strip. The strip includes an electronic display for displaying the data, a non-volatile memory for retaining the data in the absence of applied power, and a multi-frequency tone signaling system to retransmit the received data to the server unit as a means of confirming that the proper information had been received and displayed, and a sensor element that receives display command signals.

Abstract: A system for electronically displaying sales item data such as price and item description on store shelves utilizes a central store microprocessor/computer to control the display system. Standard shelf display tags are replaced by an electronic display device and display bus system. The display bus system is comprised of a printed circuit board, with conductors which run parallel so that electrical contact can readily be made by a display module which is mounted to the printed circuit board. All of the store shelf edge channels are installed with a printed circuit board electronic bus system. In an alternate embodiment a fully integrated display strip is substituted for individual display modules. A central controller processes information from a store computer signal and sends the information to the display modules or display strips using a specialized signal format comprised of a series of tones with frequencies less than 10,000 khz.

Abstract: A system for electronically displaying item data information such as item prices and item descriptions that is available in updatable form from a central buffer, processing, multiplexing and serving unit. The system provides a multi-frequency tone signal containing item data applicable to an item on a shelf associated with an electronic display module and containing the address code of that particular module. The electronic display module responds to its particular address code and receives, decodes, and displays the data relating to the item. It further includes a multi-frequency tone signaling system to retransmit the received data to the server unit as a means of confirming that the proper information had been received and displayed. Item data information is routed, distributed, and transferred through the use of multiplexed signal buses.

Abstract: A system for electronically displaying sales item data such as price and item description on store shelves utilizes a central store microprocessor/computer to control the display system. Standard shelf display tags are replaced by an electronic display device and display bus system. The display bus system is comprised of a printed circuit board, with conductors which run parallel so that electrical contact can readily be made by a display module which is mounted to the printed circuit board. All of the store shelf edge channels are installed with a printed circuit board electronic bus system. In an alternate embodiment a fully integrated display strip is substituted for individual display modules. A central controller processes information from a store computer signal and sends the information to the display modules or display strips using a specialized signal format comprised of a series of tones with frequencies less than 10,000 khz.