Power supply apparatus and power supply method

Details Power supply apparatus and power supply method Power supply apparatus and power supply method

2004-07-30

2010-10-19

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Transmitters

C375S297000, C375S300000, C375S245000, C375S353000

Reexamination Certificate

active

07817742

ABSTRACT:
When transmitting an RF signal for power supply or a pulse signal for data transmission, amplification is made in such a manner that the peak power of the RF signal becomes greater than the peak power of the pulse signal. Thus transmitting the RF signal with the greater peak power enables charging of a capacitor23of noncontact wireless communication equipment2even if the distance to the noncontact wireless communication equipment2is long.

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Usami et. al, “The u-Chip: an Ultra-Small 2.45 GHz RFID Chip for Ubiquitous Recognition Applications,” IEICE Trans. Electron., vol. E86-C, No. 4, Apr. 2003, pp. 521-528, Tokyo, Japan.

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