EP 1021789 A1 20000726 - ARTICLE-INFORMATION DISPLAY SYSTEM USING ELECTRONICALLY CONTROLLED TAGS
Title (en)
ARTICLE-INFORMATION DISPLAY SYSTEM USING ELECTRONICALLY CONTROLLED TAGS
Title (de)
ARTIKEL-INFORMATIONSANZEIGESYSTEM MIT ELEKTRONISCH GESTEUERTEN ETIKETTEN
Title (fr)
SYSTEME D'AFFICHAGE D'INFORMATIONS PRODUITS UTILISANT DES ETIQUETTES A COMMANDE ELECTRONIQUE
Publication
Application
Priority
- US 9820281 W 19980928
- US 6178097 P 19971010
- US 6733697 P 19971202
- US 11835798 A 19980717
- US 11842398 A 19980717
- US 11860698 A 19980717
- US 11860798 A 19980717
- US 11861098 A 19980717
- US 11865398 A 19980717
- US 12076998 A 19980722
Abstract (en)
[origin: WO9919829A1] A product information display system has electronic display tags (20) for displaying pricing and product information for products in stores or warehouses. The electronic display tags (20) are electromagnetically coupled to a conductor (423). A control circuit is used to generate an information signal which contains a tag address and related data. A modulator circuit modulates an ac power signal with the information signal and applies it to the conductor for transmission to the display tags (20). Each of the display tags (20) is equipped with a coil that is electromagnetically coupled to the conductor for picking up the signals carried by the conductor.
IPC 1-7
IPC 8 full level
G06K 17/00 (2006.01); G06Q 30/00 (2006.01)
CPC (source: EP)
G06K 17/00 (2013.01); G06Q 30/06 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9919829 A1 19990422; AU 9587498 A 19990503; BR 9812903 A 20020205; CA 2305243 A1 19990422; CA 2305243 C 20070612; EP 1021789 A1 20000726; EP 1021789 A4 20050427; MX PA00003509 A 20040910
DOCDB simple family (application)
US 9820281 W 19980928; AU 9587498 A 19980928; BR 9812903 A 19980928; CA 2305243 A 19980928; EP 98949579 A 19980928; MX PA00003509 A 19980928