Communications: electrical – Selective – Interrogation response
Reexamination Certificate
2007-05-15
2007-05-15
Holloway, III, Edwin C. (Department: 2612)
Communications: electrical
Selective
Interrogation response
C340S010100, C327S543000
Reexamination Certificate
active
10915391
ABSTRACT:
A contactless IC card includes a reference voltage circuit, a judging circuit for monitoring a reference voltage that is outputted from the reference voltage circuit, and a power supply stabilization, unit. The judging circuit judges whether the reference voltage is equal to or higher than a predetermined voltage. When the reference voltage does not reach the predetermined voltage, the power supply stabilization unit supplies energy to the power supply to suppress a steep increase in the power supply voltage, thereby stabilizing the power supply in the contactless IC card and suppressing deterioration of the signal quality.
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Holloway III Edwin C.
Matsushita Electric - Industrial Co., Ltd.
Wenderoth , Lind & Ponack, L.L.P.
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