Title:
所定の情報を受信する情報処理装置、プログラム、記憶媒体および方法
Document Type and Number:
Japanese Patent JP4578139
Kind Code:
B2
Abstract:
An information processing apparatus communicates with a separate passive device, to receive specific information from the separate device. The information processing apparatus includes an antenna, a transmitter and a receiver both coupled to the antenna, and a control unit for controlling the transmitter. The control unit causes the transmitter to transmit a signal at a low transmission power and waits for reception by the receiver of a response signal from the separate device. When the specific information is detected in the response signal, the control unit causes the transmitter to transmit a signal at a high transmission power by raising the transmission power of the transmitter, to thereby enable information to be read from or written to the separate device.
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Inventors:
Shinichi Shiozu
Teruhisa Ninomiya
Isamu Yamada
Teruhisa Ninomiya
Isamu Yamada
Application Number:
JP2004117579A
Publication Date:
November 10, 2010
Filing Date:
April 13, 2004
Export Citation:
Assignee:
富士通株式会社
International Classes:
G06K17/00; G06K7/00; H04B5/02; H04B1/59; H04Q5/22
Domestic Patent References:
| JP11274975A | ||||
| JP7230560A | ||||
| JP2003195986A | ||||
| JP2001143023A | ||||
| JP3230291A | ||||
| JP10135799A | ||||
| JP2002368629A | ||||
| JP2004046345A | ||||
| JP2001283163A | ||||
| JP2001236474A |
Attorney, Agent or Firm:
Mitsuharu Kawakami
Hiroshi Tanaka
Masatoshi Kimura
Hiroshi Tanaka
Masatoshi Kimura