发明名称 |
METHOD AND DEVICE FOR TRANSMISSION OF DATA IN AN ELECTRONIC SHELF LABELING SYSTEM |
摘要 |
A method for creating synchronized transmission of messages in a wireless electronic shelf labeling system comprising at least two transmitters, a plurality of receiving label-units and a central processing unit capable of issuing messages to be transmitted via said transmitters. Wherein a first step involves determining, for each transmitter, the signal delay between issuing of a message at the central processing unit and transmission of the message from the transmitter. Wherein a second step involves actively delaying, in response to said determined signal delay, transmission from the individual transmitters such that synchronized transmission from all transmitters is achieved. The present invention further relates to a wireless electronic shelf labeling system and a transmitter for such a system.
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申请公布号 |
WO0237257(A1) |
申请公布日期 |
2002.05.10 |
申请号 |
WO2001SE02396 |
申请日期 |
2001.10.31 |
申请人 |
PRICER AB;BAECKLUND, BJOERN;TJERNELD, FREDRIK |
发明人 |
BAECKLUND, BJOERN;TJERNELD, FREDRIK |
分类号 |
G07G1/01;G06F3/147;H04J3/06;(IPC1-7):G06F3/147;G06F17/60;H04L7/00 |
主分类号 |
G07G1/01 |
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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