发明公开
EP2202675A1 READER/WRITER AND AUTHENTICATION SYSTEM USING THE READER/WRITER
审中-公开
LESE- / SCHREIBVORRICHTUNG UND AUTHENTIFIZIERUNGSSYSTEM MIT DER LESE- / SCHREIBVORRICHTUNG
- 专利标题： READER/WRITER AND AUTHENTICATION SYSTEM USING THE READER/WRITER
- 专利标题（中）： LESE- / SCHREIBVORRICHTUNG UND AUTHENTIFIZIERUNGSSYSTEM MIT DER LESE- / SCHREIBVORRICHTUNG
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申请号： EP08830798.8申请日： 2008-09-08
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公开(公告)号： EP2202675A1公开(公告)日： 2010-06-30
- 发明人: SAITO, Jyunichi , MATSUMOTO, Takayuki , NAKAGAWA, Masafumi , NARA, Hiroki , TOYOTA, Hiromi
- 申请人： Panasonic Corporation
- 申请人地址： 1006, Oaza Kadoma Kadoma-shi Osaka 571-8501 JP
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： 1006, Oaza Kadoma Kadoma-shi Osaka 571-8501 JP
- 代理机构： Eisenführ, Speiser & Partner
- 优先权： JP2007233683 20070910; JP2007234203 20070910; JP2007275357 20071023; JP2008130425 20080519; JP2008159970 20080619; JP2008179846 20080710
- 国际公布： WO2009034702 20090319
- 主分类号： G06K17/00
- IPC分类号： G06K17/00 ; H04M1/00
摘要：
In the invention, a reception intensity threshold value at which it is determined in a wireless communication function of a SIM card that a received signal is present, and a transmission output upon signal transmission are changed in response to a structure of a mobile terminal device to which the SIM card is inserted.
A response signal (SIG402) containing a reception intensity value of a authentication level setting signal (SIG401), and a response signal (SIG404) containing a reception intensity value of a authentication level setting signal (SIG403) are received. A reception intensity value of the authentication level setting signal (SIG401) and a reception intensity value of the authentication level setting signal (SIG403) are compared and a larger reception intensity value X is stored. A used antenna (antenna P) that is used when the reception intensity value X has been obtained is specified, and, an antenna to be used to transmit a signal transmitted from the reader/writer device 150 in an authentication phase is decided.
A response signal (SIG402) containing a reception intensity value of a authentication level setting signal (SIG401), and a response signal (SIG404) containing a reception intensity value of a authentication level setting signal (SIG403) are received. A reception intensity value of the authentication level setting signal (SIG401) and a reception intensity value of the authentication level setting signal (SIG403) are compared and a larger reception intensity value X is stored. A used antenna (antenna P) that is used when the reception intensity value X has been obtained is specified, and, an antenna to be used to transmit a signal transmitted from the reader/writer device 150 in an authentication phase is decided.
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