RFID transponder and RFID transponder chip

Details RFID transponder and RFID transponder chip RFID transponder and RFID transponder chip

2006-11-15

2009-06-30

Goins, Davetta W (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S505000, C340S539260, C340S539270, C340S010100, C340S636150

Reexamination Certificate

active

07554448

ABSTRACT:
A nonvolatile memory is accessed by a memory control circuit and stores temperature information indicating a temperature measured by a temperature sensor. A power supply control circuit supplies a first power supply voltage to the temperature sensor in response to a request for temperature measurement received via an antenna, and supplies a second power supply voltage to the nonvolatile memory and the memory control circuit after the temperature sensor measures the temperature. While the temperature sensor is measuring the temperature, the nonvolatile memory and the memory control circuit do not operate and thus do not generate heat. Therefore, the temperature sensor can accurately measure the temperature without being influenced from the heat generation caused by the operation of circuits in an RFID transponder.

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