Information security – Prevention of unauthorized use of data including prevention... – Copy detection
Reexamination Certificate
2004-12-10
2009-12-01
LaForgia, Christian (Department: 2439)
Information security
Prevention of unauthorized use of data including prevention...
Copy detection
C345S212000, C345S214000
Reexamination Certificate
active
07627907
ABSTRACT:
The present invention is adapted to make all the pixels of electrophoretic display17white (step S103) when light no longer incomes on the face of electrophoretic display17(“Yes” at step S102) . When someone places the face of electrophoretic display17on a contact glass of a copy machine to copy the contents on electrophoretic display17as they are, all the contents currently displayed on electrophoretic display17is deleted. As the result, the present invention can prevent the contents on electrophoretic display17from being easily copied by the copy machine as they are.
REFERENCES:
patent: 5475398 (1995-12-01), Yamazaki et al.
patent: 6037954 (2000-03-01), McMahon
patent: 6154214 (2000-11-01), Uyehara et al.
patent: 6209030 (2001-03-01), Ohashi
patent: 6329964 (2001-12-01), Tanaka
patent: 6331867 (2001-12-01), Eberhard et al.
patent: 6356287 (2002-03-01), Ruberry et al.
patent: 6827454 (2004-12-01), Kimura et al.
patent: 6861640 (2005-03-01), Light et al.
patent: 6940497 (2005-09-01), Vincent et al.
patent: 7006116 (2006-02-01), Meyers et al.
patent: 7362320 (2008-04-01), Payne et al.
patent: 2002/0011972 (2002-01-01), Yamazaki et al.
patent: 2002/0158863 (2002-10-01), Huh et al.
patent: 2002/0171813 (2002-11-01), Kimura et al.
patent: 2005/0125673 (2005-06-01), Cheng et al.
patent: 2005/0265548 (2005-12-01), Tsuchimura
patent: 11-271799 (1999-10-01), None
patent: 2001-005787 (2001-01-01), None
patent: 2001-292276 (2001-10-01), None
patent: 2002-108267 (2002-04-01), None
patent: 2004-233657 (2004-08-01), None
patent: WO 97/22099 (1997-06-01), None
patent: WO 03/089250 (2003-10-01), None
patent: WO 2004/066156 (2005-08-01), None
Search Report regarding corresponding European patent application.
Hiramatsu Kazunori
Sawada Munenori
Harness & Dickey & Pierce P.L.C.
LaForgia Christian
Seiko Epson Corporation
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