发明名称 |
Process for transmitting data between a read/write device and a transponder |
摘要 |
The invention is a process to transmit data between a read/write device and a transponder. The data is transmitted by a change in field strength of an electromagnetic or magnetic field, and the times between sequential field strength changes are evaluated. At least at the beginning of data transmission, the systematic time deviation from the setpoint is determined that arises upon a switching threshold in the field strength changes. A correction value is derived, and the subsequently determined times are changed by the correction value. This correction allows for a greater amount of data to be transferred from the read/write device to the transponder.
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申请公布号 |
US6147591(A) |
申请公布日期 |
2000.11.14 |
申请号 |
US19980174531 |
申请日期 |
1998.10.16 |
申请人 |
STOBBE, ANATOLI |
发明人 |
STOBBE, ANATOLI;SCHEFFLER, HARTMUT |
分类号 |
G06K7/00;(IPC1-7):H04Q5/22 |
主分类号 |
G06K7/00 |
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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