发明名称 |
Subglobal addressing of electronic shelf labels |
摘要 |
<p>An electronic price display system has uniquely addressed electronic shelf labels (ESLs) controlled by a central computer or host. To save power and communications channel bandwidth, subglobal addressing is defined which permits the central computer to address more than one but less than all of the labels. In one application of the addressing protocol the central computer causes the subglobally addressed labels to perform some common action such as changing a display to an alternative display. In another application of the addressing protocol the central computer uses the subglobal addressing to disambiguate when data collisions occur due to more than one label attempting to respond to a global query. <IMAGE></p> |
申请公布号 |
EP0889425(A1) |
申请公布日期 |
1999.01.07 |
申请号 |
EP19970850103 |
申请日期 |
1997.06.30 |
申请人 |
ELECTRONIC RETAILING SYSTEMS INTERNATIONAL, INC. |
发明人 |
BRIECHLE, GEORGE |
分类号 |
G06F3/147;G06Q30/00;(IPC1-7):G06F17/60 |
主分类号 |
G06F3/147 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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