Registers – Systems controlled by data bearing records – Credit or identification card systems
Reexamination Certificate
2007-07-26
2009-06-09
Le, Thien M. (Department: 2887)
Registers
Systems controlled by data bearing records
Credit or identification card systems
C235S381000, C235S382000, C235S492000
Reexamination Certificate
active
07543742
ABSTRACT:
A handy reader/writer has a data transmitting and receiving units and a control unit. The transmitting and receiving units communicate with a contactless IC card placed within a communication area of the communicating unit by using first electromagnetic waves outputted from an antenna. The control unit judges whether or not the card is now in communication with a second reader/writer. If the control unit detects the card communicating with the second reader/writer by using second electromagnetic waves, the control unit forbids the antenna outputting the first electromagnetic waves. If the control unit does not detect the card communicating with the second reader/writer, the control unit starts communicating with the card placed. The second reader/writer does not output the second electromagnetic waves when detecting the first electromagnetic waves, and starts communicating with the card when detecting no first electromagnetic waves.
REFERENCES:
patent: 2005/0170784 (2005-08-01), Ariyoshi et al.
patent: 2006/0289650 (2006-12-01), Taylor et al.
patent: 2007/0057057 (2007-03-01), Andresky et al.
patent: S62-118493 (1987-05-01), None
patent: 2001-0091463 (2001-10-01), None
patent: A-2004-029873 (2003-12-01), None
patent: WO 2004/056005 (2005-08-01), None
Office Action dated Nov. 27, 2008 in corresponding Korean patent application No. 10-2007-0077519 (and English translation).
Denso Wave Incorporated
Le Thien M.
Posz Law Group , PLC
Taylor April A
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