Communication apparatus capable of communicating with data carrier and method of controlling communication between communication apparatus and data carrier
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United States of America Patent
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Issued Date -
Dec 28, 2006
app pub date -
Jun 15, 2006
filing date -
Jun 22, 2005
priority date (Note) -
Abandoned
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Abstract
The communication apparatus capable of performing communication with at least one data carrier by means of electromagnetic waves includes a transmitting part configured to change a transmission power level of electromagnetic waves being transmitted from the communication apparatus depending on a level of a control signal supplied, and a control part producing the control signal. The control part is configured to gradually change the level of the control signal being supplied to the transmitting part when the transmission power level of the electromagnetic waves is needed to be changed.
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