Method of and device for transmitting serial data structures in systems for identifying information carriers
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United States of America Patent
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May 21, 1996
Grant Date -
N/A
app pub date -
May 6, 1994
filing date -
Mar 31, 1992
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A process is disclosed for transmitting serial data structures for information carrier identification systems (RF-ID systems), a transmission system working according to this process and an information carrier for contactless, electromagnetic transmission of serial data structures. The identification system has an interface (antenna) and an information carrier (transponder). The transmission process is essentially characterized in that a time-parallel data transmission and comparison between the data emitted by the interface and the data immediately sent back by the information carrier is carried out. The information data carrier has as essential components two appropriately sizeable receiving and emitting inductances and a multiplexer that is connected with a demodulator, a control logic and a non-volatile memory.
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