Display system for store shelves
US6749116B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 10, 2003 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Jan 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2380/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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. The sensor element of the display strip receives and processes signals from a handheld remote control unit and these signals are used to shift the displayed information in any direction …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.