Data carrier device, data carrier driving device, data communication system using data carrier driving device and data communication method
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United States of America Patent
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Feb 16, 2010
Grant Date -
May 11, 2006
app pub date -
Nov 7, 2005
filing date -
Nov 9, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention has an object enabling stable data communication hard to perform a malfunction in a simple circuit configuration which can miniaturize a system and does not need any strict accuracy by executing data communication in a connection using two terminals or less. The present invention is featured by being related to a data carrier device including a signal terminal for performing signal input from a data carrier driving device. The data carrier device includes a data communication circuit receiving an input of a pulse having a part having a different duty ratio and a pulse frequency constant on the whole from the data carrier driving device through the signal terminal to generate a data signal.
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