IC card, portable electronic device, and reader/writer

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9010649
APP PUB NO 20140084062A1
SERIAL NO

14031248

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Abstract

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An IC card of an embodiment performs contactless communication with an external device having a first battery and a first carrier wave output device to output carrier wave using electric power of the first battery. The IC card is provided with a second battery, a second carrier wave output device, a battery remaining capacity reading processor and a comparing processor. The second carrier wave output device outputs carrier wave using electric power of the second battery, to supply electric power to the external device. The battery remaining capacity reading processor acquires information indicating a remaining capacity of the first battery. The comparing processor compares the remaining capacity of the first battery with of a remaining capacity of the second battery.

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Patent Owner(s)

  • KABUSHIKI KAISHA TOSHIBA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sudo, Kiyohito Tokyo, JP 6 35

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