Electronic pricing display system
US4766295A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1987 |
| Grant date | Aug 23, 1988 |
| Priority date | — |
| Expiry date | Mar 2, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2380/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic pricing display system for displaying pricing and other specialized information in real time on shelf display tags (18). Display tags (18) are battery operated and receive remotely transmitted infrared signals from optical heads (20) mounted on the ceiling of a store. A handheld electronic controller (22) may be carried by store personnel for obtaining information from or sending information to a selected wireless display tag (18). Pricing information from a main computer (10) is connected by an electronic interface (23) including a microprocessor (24) into a serial information stream having two separate frequencies for relay to the optical heads (20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.