Installation for remote control of price displays in a shop

Abstract

Abstract The invention relates to an installation comprising a central station (100) and a plurality of display modules (200), each intended to exhibit on a display information received from the central station, especially for the display of prices in a shop. It is characterised in that the central station comprises means of transmission, via a current loop (135) supplied by a low-frequency signal modulated in accordance with the information to be transmitted, in that each display module (200) comprises a reception circuit comprising a reception antenna coupled electromagnetically with the current loop, in that each display module comprises means for activating the reception circuit only during a defined period, and in that each transmission of information by the central station is preceded by transmission of a wake-up signal which, when it is detected by the display module, causes it to be held in the activated state during at least part of the duration of information transmission. <IMAGE>

Inventors

• 👤 Michel Houdou
• 👤 Jacques Morineau

Bibliographic Details